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This study was planned to evaluate some early physiological and biochemical impacts of different concentrations of NaCl on germination characters, salt tolerance attributes, total carbohydrate, essential plant nutrients, proline, lipid peroxidation, cell membrane integrity and the contents of some antioxidants of chia sprouts after setting seeds to germinate in the stressful media for 7 days. The mean values of the studied germination parameters declined linearly with increasing NaCl concentrations as compared with control. Stress tolerance attributes appeared to decrease significantly and progressively with increasing NaCl levels, except for 10 mM NaCl which induced comparable values with those of control. Furthermore, total carbohydrate content, proline, lipid peroxidation, membrane injury, ascorbic acid, phenolic compounds and total flavonoids increased significantly and linearly with the increase in NaCl levels. The mineral elements of the salinized chia sprouts were either increased (Ca and Zn) or decreased (K, P and Cu) with the increase in NaCl levels as compared with control values. This study, under the present set of experimental conditions, clearly indicated that chia sprouts were sensitive to salt stress at concentrations above 10 mM NaCl.
Mahmoud E. Younis; Muhammad Rizwan; Shaimaa M. N. Tourky. Assessment of early physiological and biochemical responses in chia (Salvia hispanica L.) sprouts under salt stress. Acta Physiologiae Plantarum 2021, 43, 1 -10.
AMA StyleMahmoud E. Younis, Muhammad Rizwan, Shaimaa M. N. Tourky. Assessment of early physiological and biochemical responses in chia (Salvia hispanica L.) sprouts under salt stress. Acta Physiologiae Plantarum. 2021; 43 (8):1-10.
Chicago/Turabian StyleMahmoud E. Younis; Muhammad Rizwan; Shaimaa M. N. Tourky. 2021. "Assessment of early physiological and biochemical responses in chia (Salvia hispanica L.) sprouts under salt stress." Acta Physiologiae Plantarum 43, no. 8: 1-10.
In recent years, engineered nanomaterials have gained enormous attention due to their beneficial applications in various areas of science including industrial, environmental and life sciences. Importantly, the use of nanotechnology in agriculture will result in the release of nanoparticles (NPs) into the environment and may contaminate the food chain by entering into the plant system. However, many barriers to implementation must be addressed for technology to be adopted, including safety concerns, consumer acceptance and efficient delivery at field scale. Moreover, NPs interactions with the ecosystem and their toxicity in living systems have become a serious global concern. Additional intricate knowledge is still required about the long-term toxicological fate of NPs released in the environment and their biodegradation. The objective of this review is to provide the various sources of NPs release in the environment, exposure routes and their toxicity in agro-environment subsystems along with potential health risks to human. It also explores the possible mechanism of NPs biodegradation, emerging developments, and potential pitfalls into the research on biodegradable NPs to achieve environmental safety as well as global food security and sustainability.
Temoor Ahmed; Muhammad Noman; Natasha Manzoor; Shafaqat Ali; Muhammad Rizwan; Munazza Ijaz; Khaled S. Allemailem; Abdulkarim S. BinShaya; Fahad A. Alhumaydhi; Bin Li. Recent advances in nanoparticles associated ecological harms and their biodegradation: Global environmental safety from nano-invaders. Journal of Environmental Chemical Engineering 2021, 9, 106093 .
AMA StyleTemoor Ahmed, Muhammad Noman, Natasha Manzoor, Shafaqat Ali, Muhammad Rizwan, Munazza Ijaz, Khaled S. Allemailem, Abdulkarim S. BinShaya, Fahad A. Alhumaydhi, Bin Li. Recent advances in nanoparticles associated ecological harms and their biodegradation: Global environmental safety from nano-invaders. Journal of Environmental Chemical Engineering. 2021; 9 (5):106093.
Chicago/Turabian StyleTemoor Ahmed; Muhammad Noman; Natasha Manzoor; Shafaqat Ali; Muhammad Rizwan; Munazza Ijaz; Khaled S. Allemailem; Abdulkarim S. BinShaya; Fahad A. Alhumaydhi; Bin Li. 2021. "Recent advances in nanoparticles associated ecological harms and their biodegradation: Global environmental safety from nano-invaders." Journal of Environmental Chemical Engineering 9, no. 5: 106093.
An Egyptian rhizobacterium Azospirillum sp. isolated from Sadat city was able to produce indole acetic acid (IAA) up to (30.59 µg/ml). The isolate was identified biochemically and by 16S rRNA sequencing which showed 99.9% similarity to Azospirillum brasilense. The new isolate has been registered in Genbank with accession number MH179119.1. Extracted IAA was used as reducing or stabilizing agent of sliver nanoparticles (AgNPs). Successful fabrication of biogenic IAA-AgNPs was confirmed by Fourier Transform Infrared Spectrophotometer (FTIR) analysis of IAA which showed absorbance peak at 3434.78 cm−1 due to the N-H stretch of primary amines. Highly resolution Transmission Electron Microscopy (HR-TEM) showed AgNPs coating or capping with IAA in spherical shaped with size ranged from 6.01 to 44.02 nm. Energy dispersive X-ray (EDX) analysis revealed that Ag+ ions were attached to the surface of IAA-AgNPs particles. HR-TEM examination showed cell wall damage of Citrobacter freundii cells after exposure to IAA-AgNPs leading to cell death. In vivo results showed that C. freundii infection of rats induced significant increase in liver and kidney functions and deleterious histopathological alteration in rat’s tissues. However, treatment by extracted IAA and IAA-AgNPs could normalize the biochemical and histopathological alterations occurred in infected rats. This is the first study to prove that IAA extracted from Azospirillum brasilense is a hopeful capping agent for NPs which has potential to protect against pathogenic infections, nontoxic and/or safe on rat’s metabolisms.
Marwa Salah Abdel-Hamid; Mohamed El Morsy El Wakeel; Hanafy Ahmed Hamza; Enas A. Tahoun; Fatimah M. Alshehrei; Muhammad Rizwan; Ghada A. Badawy. Biogenic and characterizations of new silver nanoparticles stabilized with indole acetic acid derived from Azospirillum brasilense MMGH-SADAT1, their bioactivity, and histopathological assessment in rats. Ecotoxicology and Environmental Safety 2021, 222, 112521 .
AMA StyleMarwa Salah Abdel-Hamid, Mohamed El Morsy El Wakeel, Hanafy Ahmed Hamza, Enas A. Tahoun, Fatimah M. Alshehrei, Muhammad Rizwan, Ghada A. Badawy. Biogenic and characterizations of new silver nanoparticles stabilized with indole acetic acid derived from Azospirillum brasilense MMGH-SADAT1, their bioactivity, and histopathological assessment in rats. Ecotoxicology and Environmental Safety. 2021; 222 ():112521.
Chicago/Turabian StyleMarwa Salah Abdel-Hamid; Mohamed El Morsy El Wakeel; Hanafy Ahmed Hamza; Enas A. Tahoun; Fatimah M. Alshehrei; Muhammad Rizwan; Ghada A. Badawy. 2021. "Biogenic and characterizations of new silver nanoparticles stabilized with indole acetic acid derived from Azospirillum brasilense MMGH-SADAT1, their bioactivity, and histopathological assessment in rats." Ecotoxicology and Environmental Safety 222, no. : 112521.
Agricultural soils are receiving higher inputs of trace elements (TEs) from anthropogenic activities. Application of nanoparticles (NPs) in agriculture as nano-pesticides and nano-fertilizers has gained rapid momentum worldwide. The NPs-based fertilizers can facilitate controlled-release of nutrients which may be absorbed by plants more efficiently than conventional fertilizers. Due to their large surface area with high sorption capacity, NPs can be used to reduce excess TEs uptake by plants. The present review summarizes the effects of NPs on plant growth, photosynthesis, mineral nutrients uptake and TEs concentrations. It also highlights the possible mechanisms underlying NPs-mediated reduction of TEs toxicity at the soil and plant interphase. Nanoparticles are effective in immobilization of TEs in soil through alteration of their speciation and improving soil physical, chemical, and biological properties. At the plant level, NPs reduce TEs translocation from roots to shoots by promoting structural alterations, modifying gene expression, and improving antioxidant defense systems. However, the mechanisms underlying NPs-mediated TEs uptake and toxicity reduction vary with NPs type, mode of application, time of NPs exposure, and plant conditions (e.g., species, cultivars, and growth rate). The review emphasizes that NPs may provide new perspectives to resolve the problem of TEs toxicity in crop plants which may also reduce the food security risks. However, the potential of NPs in metal-contaminated soils is only just starting to be realized, and additional studies are required to explore the mechanisms of NPs-mediated TEs immobilization in soil and uptake by plants. Such future knowledge gap has been highlighted and discussed.
Muhammad Rizwan; Shafaqat Ali; Muhammad Zia Ur Rehman; Muhammad Riaz; Muhammad Adrees; Afzal Hussain; Zahir Ahmad Zahir; Jörg Rinklebe. Effects of nanoparticles on trace element uptake and toxicity in plants: A review. Ecotoxicology and Environmental Safety 2021, 221, 112437 .
AMA StyleMuhammad Rizwan, Shafaqat Ali, Muhammad Zia Ur Rehman, Muhammad Riaz, Muhammad Adrees, Afzal Hussain, Zahir Ahmad Zahir, Jörg Rinklebe. Effects of nanoparticles on trace element uptake and toxicity in plants: A review. Ecotoxicology and Environmental Safety. 2021; 221 ():112437.
Chicago/Turabian StyleMuhammad Rizwan; Shafaqat Ali; Muhammad Zia Ur Rehman; Muhammad Riaz; Muhammad Adrees; Afzal Hussain; Zahir Ahmad Zahir; Jörg Rinklebe. 2021. "Effects of nanoparticles on trace element uptake and toxicity in plants: A review." Ecotoxicology and Environmental Safety 221, no. : 112437.
Lead (Pb), copper (Cu) and chromium (Cr) are one of the most harmful heavy metals (HMs), entering into the food chain through the irrigation of crops with an industrial effluent. The present study was performed to evaluate the toxic effects of textile effluents and performance of citric acid (CA) on phytoextraction potential of Lemna minor L. and Typha latifolia L. in an artificially designed wetland. Different doses of textile wastewater (0, 25, 50, 75, and 100%) and CA (10 mM) were applied alone and in combination. Plants were harvested and the data was collected regarding agronomic traits, photosynthetic pigments, antioxidant enzymes, reactive oxygen species (ROS), electrolytic leakage (EL) and HMs uptake and accumulation. The results depicted that the concentration and accumulation of Cu, Pb and Cr in different parts of T. latifolia plant was increased with and without CA addition. The maximum concentration of Pb, Cu and Cr increased in leaves by 279, 240 & 171%, in stem by 192, 172 & 154%, and in roots by 224, 183 & 168%, respectively. Similarly, the accumulation of Pb, Cu and Cr increased in leaves by 91, 71 & 36%, in stem by 57, 46 & 36% and in roots by 76, 53 & 45%, respectively in plants treated with 100% textile effluent as compared to the 25% textile effluent treated plants under CA amendment. In L. minor, the concentration of Pb, Cu & Cr increased by 542, 411 and 397% while accumulation increased by 101, 59 & 55% respectively in overall plant biomass.
Hafiz Khuzama Ishaq; Mujahid Farid; Muhammad Zubair; Hesham F. Alharby; Zaki Ul Zaman Asam; Sheharyaar Farid; Atif A. Bamagoos; Basmah M. Alharbi; Muhammad Bilal Shakoor; Sajid Rashid Ahmad; Muhammad Rizwan; Shafaqat Ali. Efficacy of Lemna minor and Typha latifolia for the treatment of textile industry wastewater in a constructed wetland under citric acid amendment: A lab scale study. Chemosphere 2021, 283, 131107 .
AMA StyleHafiz Khuzama Ishaq, Mujahid Farid, Muhammad Zubair, Hesham F. Alharby, Zaki Ul Zaman Asam, Sheharyaar Farid, Atif A. Bamagoos, Basmah M. Alharbi, Muhammad Bilal Shakoor, Sajid Rashid Ahmad, Muhammad Rizwan, Shafaqat Ali. Efficacy of Lemna minor and Typha latifolia for the treatment of textile industry wastewater in a constructed wetland under citric acid amendment: A lab scale study. Chemosphere. 2021; 283 ():131107.
Chicago/Turabian StyleHafiz Khuzama Ishaq; Mujahid Farid; Muhammad Zubair; Hesham F. Alharby; Zaki Ul Zaman Asam; Sheharyaar Farid; Atif A. Bamagoos; Basmah M. Alharbi; Muhammad Bilal Shakoor; Sajid Rashid Ahmad; Muhammad Rizwan; Shafaqat Ali. 2021. "Efficacy of Lemna minor and Typha latifolia for the treatment of textile industry wastewater in a constructed wetland under citric acid amendment: A lab scale study." Chemosphere 283, no. : 131107.
Numerous abiotic stressors including heavy metal stresses, specifically cadmium (Cd) stress in agricultural bio-system hinder the plant adequate growth. The present study was aimed to reveal the protective role of silicon (Si) application with two levels and to recognize the optimum level of Si for wheat plants grown hydroponically under three different levels of Cd toxicities. In methodology, we used nine treatments with three levels of Si (0, 1, and 3 mmol L−1; Na2SiO3) against three levels of Cd (0, 50, 200 μmol L−1; CdCl2) with three biological replicates. The results of our study demonstrated that Si incorporation with the advantage of 3 mmol L−1 in cultured media with Cd50 and Cd200 demolished the toxic effects of Cd on the leaves of wheat plants by increasing plant dry biomass by 88% and 262%, leaf area by 48% and 57%, total chlorophyll contents by 120% and 74%, catalase (CAT) activity by 92% and 110%, superoxide dismutase (SOD) activity by 62% and 78%, peroxidase (POD) activity by 66% and 40%, ascorbic acid (AsA) contents by 33% and 34%, glutathione (GHS) contents by 39% and 30% and reduced MDA contents by 56% and 50%, H2O2 contents by 61% and 66%, and EL contents by 56% and 47% as parallel to Cd corresponding levels. In addition, Si incorporation with the advantage of 3 mmol L−1 significantly increased relative water contents (RWC) to maintain the cell turgor pressure and protect the plant from wilting and cells flaccid and enhanced membrane stability index (MSI) to protect the plant from logging under damaging effects of Cd toxicities. Based on the present findings, Si can be considered a quasi-essential element that enhanced wheat tolerance against Cd toxicity by limiting uptake, accumulation, and translocation of Cd and through regulating antioxidative defense mechanisms.
Shafeeq Ur Rahman; Qi Xuebin; Muhammad Kamran; Ghulam Yasin; Hefa Cheng; Abdur Rehim; Luqman Riaz; Muhammad Rizwan; Shafaqat Ali; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni. Silicon elevated cadmium tolerance in wheat (Triticum aestivum L.) by endorsing nutrients uptake and antioxidative defense mechanisms in the leaves. Plant Physiology and Biochemistry 2021, 166, 148 -159.
AMA StyleShafeeq Ur Rahman, Qi Xuebin, Muhammad Kamran, Ghulam Yasin, Hefa Cheng, Abdur Rehim, Luqman Riaz, Muhammad Rizwan, Shafaqat Ali, Abdulaziz Abdullah Alsahli, Mohammed Nasser Alyemeni. Silicon elevated cadmium tolerance in wheat (Triticum aestivum L.) by endorsing nutrients uptake and antioxidative defense mechanisms in the leaves. Plant Physiology and Biochemistry. 2021; 166 ():148-159.
Chicago/Turabian StyleShafeeq Ur Rahman; Qi Xuebin; Muhammad Kamran; Ghulam Yasin; Hefa Cheng; Abdur Rehim; Luqman Riaz; Muhammad Rizwan; Shafaqat Ali; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni. 2021. "Silicon elevated cadmium tolerance in wheat (Triticum aestivum L.) by endorsing nutrients uptake and antioxidative defense mechanisms in the leaves." Plant Physiology and Biochemistry 166, no. : 148-159.
Hydrocarbon stress has become one of the most restrictive factors for crop choice and productivity in most parts of the world. Dopamine (DA) has positively influenced the metabolic, physiological and biochemical activities besides the growth of plants under numerous abiotic stress conditions. The current study was performed to analyze the potential of DA to alleviate hydrocarbon stress and improve growth of Brassica oleracea plants. Hydrocarbon stress in plants was induced by growing in 5% and 10% crude oil contaminated soil. Crude oil stressed plants exhibited reduced growth besides decreased level of photosynthetic pigments and gas exchange attributes. Moreover, oil stressed plants showed elevated level of hydrogen peroxide (H2O2), electrolyte leakage (EL), malondialdehyde (MDA) and superoxide radical (O2−). However, exogenous application of 50, 100 and 200 μmol L−1 DA improved photosynthesis, shoot and root dry weight of B. oleracea seedlings growing in hydrocarbon amended soil. Additionally, DA100 treatments improved non-enzymatic and enzymatic antioxidants of treated seedlings. Our results demonstrate that increased gas exchange attributes, modulation of osmoregulators and improved activity of the antioxidative enzymes alleviated hydrocarbon stress in DA supplemented B. oleracea plants. Consequently, the first time observed ameliorative role of DA in hydrocarbon stress opens a new arena for application of this dynamic biomolecule for sustainable crop production.
Aqeel Ahmad; Waheed Ullah Khan; Anis Ali Shah; Nasim Ahmad Yasin; Aamir Ali; Muhammad Rizwan; Shafaqat Ali. Dopamine Alleviates Hydrocarbon Stress in Brassica oleracea through Modulation of Physio-Biochemical Attributes and Antioxidant Defense Systems. Chemosphere 2021, 270, 128633 .
AMA StyleAqeel Ahmad, Waheed Ullah Khan, Anis Ali Shah, Nasim Ahmad Yasin, Aamir Ali, Muhammad Rizwan, Shafaqat Ali. Dopamine Alleviates Hydrocarbon Stress in Brassica oleracea through Modulation of Physio-Biochemical Attributes and Antioxidant Defense Systems. Chemosphere. 2021; 270 ():128633.
Chicago/Turabian StyleAqeel Ahmad; Waheed Ullah Khan; Anis Ali Shah; Nasim Ahmad Yasin; Aamir Ali; Muhammad Rizwan; Shafaqat Ali. 2021. "Dopamine Alleviates Hydrocarbon Stress in Brassica oleracea through Modulation of Physio-Biochemical Attributes and Antioxidant Defense Systems." Chemosphere 270, no. : 128633.
Lead (Pb) is one of the most toxic elements on earth. The main origins of Pb pollution are automobiles, paint and electroplating industries. Pb-induced stress has very toxic effects on plant growth and biomass. The concentration of reactive oxygen species (ROS) in plant cells significantly increases under Pb stress, which interrupts the biochemical cycles in cells and leads to cell death. Therefore, it is essential to clean up the Pb-polluted soils. Among all techniques that are used to clean soil that is metal-contaminated, the best technique is phytoremediation. The present study intends to determine the role of citric acid (CA) and glutathione (GSH) in the phytoremediation of Pb by using castor bean plants. Plant biomass was significantly reduced due to Pb stress. Lead toxicity was also harmful to the photosynthetic pigments and antioxidant enzymes activities. In reverse, the content of malondialdehyde (MDA), H2O2 concentration and electrolyte leakage (EL) were increased under Pb stress. The combined application of GSH and CA enhanced photosynthetic pigments, antioxidant enzyme activities and plant biomass and minimized MDA, H2O2 and EL under Pb stress. The amount of Pb in roots and leaves remarkably increased by the joint application of CA and GSH. The combined application of CA and GSH (5 mM + 25 mM, respectively) was proven to be beneficial compared to the control. From the present results, we can conclude that the combined application of CA and GSH promoted the phytoremediation of Pb and helped the host plant to combat Pb toxicity.
Fanrong Zeng; Zahid Mallhi; Naeem Khan; Muhammad Rizwan; Shafaqat Ali; Awais Ahmad; Afzal Hussain; Abdulaziz Alsahli; Mohammed Alyemeni. Combined Citric Acid and Glutathione Augments Lead (Pb) Stress Tolerance and Phytoremediation of Castorbean through Antioxidant Machinery and Pb Uptake. Sustainability 2021, 13, 4073 .
AMA StyleFanrong Zeng, Zahid Mallhi, Naeem Khan, Muhammad Rizwan, Shafaqat Ali, Awais Ahmad, Afzal Hussain, Abdulaziz Alsahli, Mohammed Alyemeni. Combined Citric Acid and Glutathione Augments Lead (Pb) Stress Tolerance and Phytoremediation of Castorbean through Antioxidant Machinery and Pb Uptake. Sustainability. 2021; 13 (7):4073.
Chicago/Turabian StyleFanrong Zeng; Zahid Mallhi; Naeem Khan; Muhammad Rizwan; Shafaqat Ali; Awais Ahmad; Afzal Hussain; Abdulaziz Alsahli; Mohammed Alyemeni. 2021. "Combined Citric Acid and Glutathione Augments Lead (Pb) Stress Tolerance and Phytoremediation of Castorbean through Antioxidant Machinery and Pb Uptake." Sustainability 13, no. 7: 4073.
The reclamation of alkaline soils remains challenging while the application of biochar has been proposed as a viable measure to rehabilitate soil fertility. The objective of the current pot study was to evaluate the efficacy of various P-La modified sewage sludge biochars (SSBC, La-SSBC, SSBC-P, La-SSBC-P) on soil phosphate-retention and ryegrass (Lolium perenne L.) growth in an alkaline soil (excess CaCO3). The results revealed that germination percentage, plant dry biomass, plant height, and the total amount of P in the ryegrass leaves were significantly (P < 0.05) improved under La-SSBC-P treatment as compared to other treatments. La-SSBC-P treatment significantly altered the chemical characteristics of post-harvest alkaline soil, such as pH, electrical conductivity (EC), cation exchange capacity (CEC), soil organic matter (SOM), limestone (CaCO3), phosphate, and lanthanum contents. In comparison to the SSBC treatment, soil available phosphorous (AP) contents under La-SSBC-P were enhanced by 6.7 times after loading biochar with P and La (La-SSBC-P). After the plantation of ryegrass, concentration of lanthanum in the soil was negligible. The contents of CaCO3 reduced by 76.2% after La-SSBC-P biochar treatment, compared to the cultivated control. This phenomenon clearly indicated that lanthanum was reduced due to the precipitation with limestone, which was proposed based on the data of X-ray diffraction (XRD) analysis. Overall, results showed that the P-loaded lanthanum decorated biochar (La-SSBC-P) could be used as a potential substitute for P-fertilizer under the experimental conditions. However, field experiments are required to confer the efficiency of La-SSBC-P as P fertilizer in different soils.
Zouhair Elkhlifi; Muhammad Kamran; Ahsan Maqbool; Ali El-Naggar; Jerosha Ifthikar; Aasma Parveen; Saqib Bashir; Muhammad Rizwan; Adnan Mustafa; Sana Irshad; Shafaqat Ali; Zhuqi Chen. Phosphate-lanthanum coated sewage sludge biochar improved the soil properties and growth of ryegrass in an alkaline soil. Ecotoxicology and Environmental Safety 2021, 216, 112173 .
AMA StyleZouhair Elkhlifi, Muhammad Kamran, Ahsan Maqbool, Ali El-Naggar, Jerosha Ifthikar, Aasma Parveen, Saqib Bashir, Muhammad Rizwan, Adnan Mustafa, Sana Irshad, Shafaqat Ali, Zhuqi Chen. Phosphate-lanthanum coated sewage sludge biochar improved the soil properties and growth of ryegrass in an alkaline soil. Ecotoxicology and Environmental Safety. 2021; 216 ():112173.
Chicago/Turabian StyleZouhair Elkhlifi; Muhammad Kamran; Ahsan Maqbool; Ali El-Naggar; Jerosha Ifthikar; Aasma Parveen; Saqib Bashir; Muhammad Rizwan; Adnan Mustafa; Sana Irshad; Shafaqat Ali; Zhuqi Chen. 2021. "Phosphate-lanthanum coated sewage sludge biochar improved the soil properties and growth of ryegrass in an alkaline soil." Ecotoxicology and Environmental Safety 216, no. : 112173.
The aim of present work was to evaluate the effects of titanium dioxide nanoparticles (TiO2 NPs) on rice’s growth (Oryza sativa L.) and nutrient availability under different soil textures. Greenhouse experiment was carried out with three soil textures (sandy loam, silt loam and silty clay loam) and two concentrations of TiO2 NPs (500, 750 mg kg−1). Control (without TiO2 NPs) was also maintained for the comparison. Growth parameters including chlorophyll content, root/shoot length, fresh/dry biomass and nutrients’ uptake including calcium (Ca), copper (Cu), iron (Fe), magnesium (Mg), phosphorous (P), potassium (K) and zinc (Zn) were determined. The results revealed that application of 500 mg kg−1 TiO2 NPs in silty clay loam soil increased the chlorophyll content (3.3-folds), root length (49%), shoot length (31%), root and shoot biomass (41% & 39%, respectively) as compared to other soil textures. The maximum plant growth was observed in silty clay loam > silt loam > sandy loam. Concentration of Cu, Fe, P and Zn in shoot was increased by 8 − , 2.3 − , 0.4 − , 0.05 −folds in silty clay loam upon 500 mg kg−1 TiO2 NPs application as compared to the control. Backward selection method to model the parameters (nutrients in soil) for the response variables (root/shoot length and biomass) showed that Ca, Fe, P are the main nutrients responsible for the increase in plant length and biomass. Overall, the growth of rice was better in silty clay loam at 500 mg kg−1 of TiO2 NPs.
Muhammad Arshad; Sana Nisar; Iram Gul; Uzma Nawaz; Shagufta Irum; Shakil Ahmad; Hafsaa Sadat; Ishaq Ahmad Mian; Shafaqat Ali; Muhammad Rizwan; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni. Multi-element uptake and growth responses of Rice (Oryza sativa L.) to TiO2 nanoparticles applied in different textured soils. Ecotoxicology and Environmental Safety 2021, 215, 112149 .
AMA StyleMuhammad Arshad, Sana Nisar, Iram Gul, Uzma Nawaz, Shagufta Irum, Shakil Ahmad, Hafsaa Sadat, Ishaq Ahmad Mian, Shafaqat Ali, Muhammad Rizwan, Abdulaziz Abdullah Alsahli, Mohammed Nasser Alyemeni. Multi-element uptake and growth responses of Rice (Oryza sativa L.) to TiO2 nanoparticles applied in different textured soils. Ecotoxicology and Environmental Safety. 2021; 215 ():112149.
Chicago/Turabian StyleMuhammad Arshad; Sana Nisar; Iram Gul; Uzma Nawaz; Shagufta Irum; Shakil Ahmad; Hafsaa Sadat; Ishaq Ahmad Mian; Shafaqat Ali; Muhammad Rizwan; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni. 2021. "Multi-element uptake and growth responses of Rice (Oryza sativa L.) to TiO2 nanoparticles applied in different textured soils." Ecotoxicology and Environmental Safety 215, no. : 112149.
Soil reclamation through afforestation along with soil amendments is one of the most suitable practices to combat soil salinity while the use of biochar may have potential to ameliorate salt-affected soils. This study was designed to check effects of different biochars on the physico-chemical properties of soil and characteristics of three important agroforestry trees species: Eucalyptus camaldulensis, Vachellia nilotica and Dalbergia sissoo, in saline soils. Farmyard manure biochar (FYMB), sugarcane bagasse biochar (SCB), woodchips biochar (WCB) were applied (6% w/w) to check their effects on plants under saline conditions. Results revealed that FYMB was the best for promoting all growth and physiological parameters of three tree species while E. camaldulensis was the best suited species. Different types of biochars influenced the growth of agroforestry species differently as SCB showed better results for D. sissoo as compared to WCB but for V. nilotica and WCB was more effective than SCB. Trend of growth and other physiological attributes for E. camaldulensis and V. nilotica was FYMB > WCB > SCB > control whereas D. sissoo showed trend as FYMB > SCB > WCB > control. Biochar was helpful in improving physicochemical characteristics of saline soils by lowering values of soil EC and SAR but type of biochar has a differential effect on tree growth.
Muhammad Talha Bin Yousaf; Muhammad Farrakh Nawaz; Muhammad Zia Ur Rehman; Sadaf Gul; Ghulam Yasin; Muhammad Rizwan; Shafaqat Ali. Effect of three different types of biochars on eco-physiological response of important agroforestry tree species under salt stress. International Journal of Phytoremediation 2021, 1 -11.
AMA StyleMuhammad Talha Bin Yousaf, Muhammad Farrakh Nawaz, Muhammad Zia Ur Rehman, Sadaf Gul, Ghulam Yasin, Muhammad Rizwan, Shafaqat Ali. Effect of three different types of biochars on eco-physiological response of important agroforestry tree species under salt stress. International Journal of Phytoremediation. 2021; ():1-11.
Chicago/Turabian StyleMuhammad Talha Bin Yousaf; Muhammad Farrakh Nawaz; Muhammad Zia Ur Rehman; Sadaf Gul; Ghulam Yasin; Muhammad Rizwan; Shafaqat Ali. 2021. "Effect of three different types of biochars on eco-physiological response of important agroforestry tree species under salt stress." International Journal of Phytoremediation , no. : 1-11.
Massive production of carcinogenic fly ash waste poses severe threats to water bodies due to its disposal into drains and landfills. Fly ash can be a source of raw materials for the synthesis of adsorbents. Rag fly ash as a new class of raw materials could be a cheap source of Al and Si for the synthesis of Na-zeolites. In this work, NaOH activation, via a prefusion- and postfusion-based hydrothermal strategy, was practiced for the modification of rag fly ash into Na-zeolite. Morphology, surface porosity, chemical composition, functionality, mineral phases, and crystallinity, in conjunction with ion exchangeability of the tailored materials, were evaluated by SEM, ICP-OES, XRF, FTIR, XRD, and cation exchange capacity (CEC) techniques. Rag fly ash and the synthesized Na-zeolites were applied for the removal of Pb (II) from synthetic wastewater by varying the reaction conditions, such as initial metal ion concentration, mass of adsorbent, sorption time, and pH of the reaction medium. It was observed that Na-zeolite materials (1 g/100 mL) effectively removed up to 90–98% of Pb (II) ions from 100 mg/L synthetic solution within 30 min at pH ≈ 8. Freundlich adsorption isotherm favors the multilayer heterogeneous adsorption mechanism for the removal of Pb (II). It is reasonable to conclude that recycling of textile rag fly ash waste into value-added Na-zeolites for the treatment of industrial wastewater could be an emergent move toward achieving sustainable and green remediation.
Tabassum Hussain; Abdullah Hussain; Shahzad Chatha; Adnan Ali; Muhammad Rizwan; Shafaqat Ali; Parvaiz Ahamd; Leonard Wijaya; Mohammed Alyemeni. Synthesis and Characterization of Na-Zeolites from Textile Waste Ash and Its Application for Removal of Lead (Pb) from Wastewater. International Journal of Environmental Research and Public Health 2021, 18, 3373 .
AMA StyleTabassum Hussain, Abdullah Hussain, Shahzad Chatha, Adnan Ali, Muhammad Rizwan, Shafaqat Ali, Parvaiz Ahamd, Leonard Wijaya, Mohammed Alyemeni. Synthesis and Characterization of Na-Zeolites from Textile Waste Ash and Its Application for Removal of Lead (Pb) from Wastewater. International Journal of Environmental Research and Public Health. 2021; 18 (7):3373.
Chicago/Turabian StyleTabassum Hussain; Abdullah Hussain; Shahzad Chatha; Adnan Ali; Muhammad Rizwan; Shafaqat Ali; Parvaiz Ahamd; Leonard Wijaya; Mohammed Alyemeni. 2021. "Synthesis and Characterization of Na-Zeolites from Textile Waste Ash and Its Application for Removal of Lead (Pb) from Wastewater." International Journal of Environmental Research and Public Health 18, no. 7: 3373.
Toxic metals present in soil and water severally affect the food crops and create serious health concerns. The current field study was focused on the impacts of foliar use of zinc oxide nanoparticles (ZnO NPs) (100 mg/L) and soil applied co-composted biochar (0.5% w/w) on yield and cadmium (Cd) uptake by grains of wheat (Triticum aestivum L.) under simultaneous Cd and water limited stress. After 60 days of seeds sowing, drought stress was initiated in half plots by alternate irrigation compared to normal irrigation. Plants were harvested after 122 days and various physiological parameters were measured. Results showed that drought and Cd stress collectively decreased plant biomass and chlorophyll contents and caused oxidative stress in leaves. While application of NPs and co-composted biochar improved the plants biomass and chlorophyll contents by overcoming the oxidative stress and enhancing the antioxidants enzymatic activities in stressed plants. Combined application of NPs and co-composted biochar restricted the Cd uptake below its threshold level in grains (0.2 mg/kg). The current study concluded that the combined application of ZnO NPs and co-composted BC was helpful to improve wheat growth and biomass, chlorophylls contents, antioxidant enzyme activities by scavenging ROS and reducing Cd uptake by plants under simultaneous Cd and drought stress.
Arooj Bashir; Muhammad Zia Ur Rehman; Khalid Mahmud Hussaini; Muhammad Adrees; Muhammad Farooq Qayyum; Aziz Ullah Sayal; Muhammad Rizwan; Shafaqat Ali; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni. Combined use of zinc nanoparticles and co-composted biochar enhanced wheat growth and decreased Cd concentration in grains under Cd and drought stress: A field study. Environmental Technology & Innovation 2021, 23, 101518 .
AMA StyleArooj Bashir, Muhammad Zia Ur Rehman, Khalid Mahmud Hussaini, Muhammad Adrees, Muhammad Farooq Qayyum, Aziz Ullah Sayal, Muhammad Rizwan, Shafaqat Ali, Abdulaziz Abdullah Alsahli, Mohammed Nasser Alyemeni. Combined use of zinc nanoparticles and co-composted biochar enhanced wheat growth and decreased Cd concentration in grains under Cd and drought stress: A field study. Environmental Technology & Innovation. 2021; 23 ():101518.
Chicago/Turabian StyleArooj Bashir; Muhammad Zia Ur Rehman; Khalid Mahmud Hussaini; Muhammad Adrees; Muhammad Farooq Qayyum; Aziz Ullah Sayal; Muhammad Rizwan; Shafaqat Ali; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni. 2021. "Combined use of zinc nanoparticles and co-composted biochar enhanced wheat growth and decreased Cd concentration in grains under Cd and drought stress: A field study." Environmental Technology & Innovation 23, no. : 101518.
Cadmium (Cd) accumulation in arable lands has become a serious matter for food security. Among various approaches, the application of nanoparticles (NPs) for remediation of contaminated water and soils is attaining more popularity worldwide. The current field experiment was executed to explore the impacts of single and combined use of ZnO NPs, Fe NPs and Si NPs on wheat growth and Cd intake by plants in a Cd-contaminated field. Wheat was sown in a field which was contaminated with Cd and was irrigated with the raw-city-effluent while NPs were applied as foliar spray alone and in all possible combinations. The data revealed that straw and grain yields were enhanced in the presence of NPs over control. Chlorophyll, carotenoids contents and antioxidants activities were enhanced while electrolyte leakage was reduced with all NPs over control. In comparison with control, Cd uptake in wheat straw was reduced by 84% and Cd uptake in grain was reduced by 99% in T8 where all three NPs were foliar-applied simultaneously. Zinc (Zn) and iron (Fe) contents were increased in those plants where ZnO and Fe NPs were exogenously applied which revealed that ZnO and Fe NPs enhanced the bio-fortification of Zn and Fe in wheat grains. Overall, foliar application of different NPs is beneficial for better wheat growth, yield, nutrients uptake and to lessen the Cd intake by plants grown in Cd-contaminated soil under real field conditions.
Afzal Hussain; Muhammad Rizwan; Shafaqat Ali; Muhammad Zia Ur Rehman; Muhammad Farooq Qayyum; Rab Nawaz; Awais Ahmad; Muhammad Asrar; Sajid Rashid Ahmad; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni. Combined use of different nanoparticles effectively decreased cadmium (Cd) concentration in grains of wheat grown in a field contaminated with Cd. Ecotoxicology and Environmental Safety 2021, 215, 112139 .
AMA StyleAfzal Hussain, Muhammad Rizwan, Shafaqat Ali, Muhammad Zia Ur Rehman, Muhammad Farooq Qayyum, Rab Nawaz, Awais Ahmad, Muhammad Asrar, Sajid Rashid Ahmad, Abdulaziz Abdullah Alsahli, Mohammed Nasser Alyemeni. Combined use of different nanoparticles effectively decreased cadmium (Cd) concentration in grains of wheat grown in a field contaminated with Cd. Ecotoxicology and Environmental Safety. 2021; 215 ():112139.
Chicago/Turabian StyleAfzal Hussain; Muhammad Rizwan; Shafaqat Ali; Muhammad Zia Ur Rehman; Muhammad Farooq Qayyum; Rab Nawaz; Awais Ahmad; Muhammad Asrar; Sajid Rashid Ahmad; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni. 2021. "Combined use of different nanoparticles effectively decreased cadmium (Cd) concentration in grains of wheat grown in a field contaminated with Cd." Ecotoxicology and Environmental Safety 215, no. : 112139.
A field study was designed to explore the impacts of foliar-applied chemically and green synthesized titanium dioxide nanoparticles (TiO2 NPs) on cadmium (Cd) uptake in wheat plants. The wheat was grown in field which was contaminated with Cd and plants were subjected to foliar episodes of TiO2 NPs during plant growth period. Leaf extracts of two plant species (Trianthema portulacastrum, Chenopodium quinoa) were used for green synthesis while sol-gel method was used for chemical preparation of TiO2 NPs. Results showed that TiO2 NPs significantly enhanced the plant height, length of spikes photosynthesis, and straw and grain yield compared to control. TiO2 NPs minimized the oxidative burst in leaves and improved the enzyme activities than control. Cadmium concentrations of straw, roots and grains decreased after TiO2 NPs treatments than control. The grain Cd contents were below recommended threshold (0.2 mg Cd /kg grain DW) for cereals upon NPs exposure. The health risk index by the dietary use of grains for adults was below threshold upon NPs exposure. Overall, foliar use of TiO2 NPs prepared from plant extracts was appropriate in minimizing Cd contents in wheat grains, thereby reducing risk of Cd to human health via food chain.
Muhammad Atif Irshad; Muhammad Zia Ur Rehman; Muhammad Anwar-Ul-Haq; Muhammad Rizwan; Rab Nawaz; Muhammad Bilal Shakoor; Leonard Wijaya; Mohammed Nasser Alyemeni; Parvaiz Ahmad; Shafaqat Ali. Effect of green and chemically synthesized titanium dioxide nanoparticles on cadmium accumulation in wheat grains and potential dietary health risk: A field investigation. Journal of Hazardous Materials 2021, 415, 125585 .
AMA StyleMuhammad Atif Irshad, Muhammad Zia Ur Rehman, Muhammad Anwar-Ul-Haq, Muhammad Rizwan, Rab Nawaz, Muhammad Bilal Shakoor, Leonard Wijaya, Mohammed Nasser Alyemeni, Parvaiz Ahmad, Shafaqat Ali. Effect of green and chemically synthesized titanium dioxide nanoparticles on cadmium accumulation in wheat grains and potential dietary health risk: A field investigation. Journal of Hazardous Materials. 2021; 415 ():125585.
Chicago/Turabian StyleMuhammad Atif Irshad; Muhammad Zia Ur Rehman; Muhammad Anwar-Ul-Haq; Muhammad Rizwan; Rab Nawaz; Muhammad Bilal Shakoor; Leonard Wijaya; Mohammed Nasser Alyemeni; Parvaiz Ahmad; Shafaqat Ali. 2021. "Effect of green and chemically synthesized titanium dioxide nanoparticles on cadmium accumulation in wheat grains and potential dietary health risk: A field investigation." Journal of Hazardous Materials 415, no. : 125585.
The present study focused on investigating the effect of titanium dioxide nanoparticles (TiO2NPs) on rice (Oryza sativa L.) growth and changes in soil health in two contrasting soil textures (silt-loam and clay). Moreover, response of rice to different methods of TiO2NPs application and phosphorous fertilizer levels were also evaluated. For toxicity assessment, pot experiment was carried out. TiO2NPs (0, 500, 750 mg kg−1) were applied and plants were grown till vegetative stage. After harvesting, physiological parameters, stress assay, soil microbial and enzymatic activities were determined. Based on the results of toxicity study, impact of three methods of TiO2NPs application (foliar, irrigation, soil) and four phosphorous fertilizer levels (0, 10, 20, 40 mg kg−1) on rice growth were assessed. During the 1st phase, results showed an adverse effect of TiO2NPs on plant growth and soil microorganisms in both soil textures at 750 mg kg−1. The H2O2 production, lipid peroxidation and leaf membrane injury index were increased by 4.3–, 2.4–, and 1.9–folds in clay soil upon 750 mg kg−1 TiO2NPs application. Likewise, at the same level of TiO2NPs; microbial biomass, dehydrogenase, and respiration were decreased by 0.91–, 0.79–, and 0.78– folds respectively. In 2nd phase, maximum shoot length, biomass, phosphorous uptake and rice grain protein content were observed under application of TiO2NPs (500 mg kg−1) through irrigation method in combination with 40 mg P kg−1. However, 20 and 40 mg P kg−1 performed equally well upon TiO2NPs application and the results were not statistically significant. The results suggest that 750 mg kg−1 of TiO2NPs negatively affect plant growth and soil enzymatic activities. Moreover, combined application of TiO2NPs (500 mg kg−1) through irrigation and 20 mg P kg−1 is recommended to be the optimum for growth of rice plant.
S. Phziya Tariq Waani; Shagufta Irum; Iram Gul; Khurram Yaqoob; Muhammad Usman Khalid; Muhammad Arif Ali; Umair Manzoor; Tayyaba Noor; Shafaqat Ali; Muhammad Rizwan; Muhammad Arshad. TiO2 nanoparticles dose, application method and phosphorous levels influence genotoxicity in Rice (Oryza sativa L.), soil enzymatic activities and plant growth. Ecotoxicology and Environmental Safety 2021, 213, 111977 .
AMA StyleS. Phziya Tariq Waani, Shagufta Irum, Iram Gul, Khurram Yaqoob, Muhammad Usman Khalid, Muhammad Arif Ali, Umair Manzoor, Tayyaba Noor, Shafaqat Ali, Muhammad Rizwan, Muhammad Arshad. TiO2 nanoparticles dose, application method and phosphorous levels influence genotoxicity in Rice (Oryza sativa L.), soil enzymatic activities and plant growth. Ecotoxicology and Environmental Safety. 2021; 213 ():111977.
Chicago/Turabian StyleS. Phziya Tariq Waani; Shagufta Irum; Iram Gul; Khurram Yaqoob; Muhammad Usman Khalid; Muhammad Arif Ali; Umair Manzoor; Tayyaba Noor; Shafaqat Ali; Muhammad Rizwan; Muhammad Arshad. 2021. "TiO2 nanoparticles dose, application method and phosphorous levels influence genotoxicity in Rice (Oryza sativa L.), soil enzymatic activities and plant growth." Ecotoxicology and Environmental Safety 213, no. : 111977.
This study evaluates the potential of sewage sludge, farm manure, rock phosphate, and their composts or biochar as useful materials for phosphorous (P) recovery. An alkaline–calcareous soil was incubated with different compost-based amendments to discern their impact on the P sorption characteristics. The treatments examined consisted of sewage sludge (SS), SS biochar (SS-BC), or composts of SS with rock phosphate (RP) and farm manure (FM) in different ratios, i.e., (i) control, (ii) SS, (iii) SS-BC, (iv) SS50:FM50, (v) SS75:FM25, (vi) SS25:FM25:RP50, (vii) SS50:FM25:RP25, (viii) SS75:FM0:RP25, and (ix) SS50:FM0:RP50. Prior to incubation for 45 days, the composts and biochar treatments combinations were characterized for elemental composition using Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) spectroscopy. The treated soils were analyzed for soil pH, electrical conductivity (EC), Olsen’s P, and P adsorption isotherms, at day 5 and 45 of the incubation. Langmuir and Freundlich’s equations were used to calculate P adsorption. Results showed that there was no significant influence on soil pH for any treatment throughout the experiment. However, soil EC decreased significantly for all treatments after 5 days of incubation; however, this effect was diminished after 45 days of incubation. All the treatments significantly decreased P sorption capacity both at the start (day 5) and end of the incubation (day 45) period compared to control. The treatment combination SS25:FM25:RP50 recovered the highest Olsen-P (79.41 mg kg−1). The other treatment combinations including SS and FM also recovered a greater Olsen’s P compared to the control. However, the sole application of only SS showed lower P recovery than the control soil, which further decreased with increase in incubation time. These findings improve our understanding that the stable pool of bioavailable P within an alkaline calcareous soil can be mobilized by using different organic treatment combinations instead of only SS. However, further in situ investigations may help to valorize the potential of sewage sludge, farm manure, rock phosphate, and their composts or biochar to improve P recovery in alkaline–calcareous.
Rabia Rehman; Muhammad Qayyum; Ghulam Haider; Kate Schofield; Muhammad Abid; Muhammad Rizwan; Shafaqat Ali. The Sewage Sludge Biochar and Its Composts Influence the Phosphate Sorption in an Alkaline–Calcareous Soil. Sustainability 2021, 13, 1779 .
AMA StyleRabia Rehman, Muhammad Qayyum, Ghulam Haider, Kate Schofield, Muhammad Abid, Muhammad Rizwan, Shafaqat Ali. The Sewage Sludge Biochar and Its Composts Influence the Phosphate Sorption in an Alkaline–Calcareous Soil. Sustainability. 2021; 13 (4):1779.
Chicago/Turabian StyleRabia Rehman; Muhammad Qayyum; Ghulam Haider; Kate Schofield; Muhammad Abid; Muhammad Rizwan; Shafaqat Ali. 2021. "The Sewage Sludge Biochar and Its Composts Influence the Phosphate Sorption in an Alkaline–Calcareous Soil." Sustainability 13, no. 4: 1779.
Nanotechnology is capturing great interest worldwide due to their stirring applications in various fields. Among nanoparticles (NPs), titanium dioxide (TiO2) NPs have been widely used in daily life and can be synthesized through various physical, chemical, and green methods. Green synthesis is a non-toxic, cost-effective, and eco-friendly route for the synthesis of NPs. Plenty of work has been reported on the green, chemical, physical and biological synthesis of TiO2 NPs and these NPs can be characterized through high tech. instruments. In the present review, dense data have been presented on the comparative synthesis of TiO2 NPs with different characteristics and their wide range of applications. Among the TiO2 NPs synthesis techniques, the green methods have been proven to be efficient than chemical synthesis methods because of the less use of precursors, time-effectiveness, and energy-efficiency during the green synthesis procedures. Moreover, this review describes the types of plants (shrubs, herbs and trees), microorganisms (bacteria, fungi and algae), biological derivatives (proteins, peptides, and starches) employed for the synthesis of TiO2 NPs. The TiO2 NPs can be effectively used for the treatment of polluted water and positively affected the plant physiology especially under abiotic stresses but the response varied with types, size, shapes, doses, duration of exposure, metal species along with other factors. This review also highlights the regulating features and future standpoints for the measurable enrichment in TiO2 NPs product and perspectives of TiO2 NPs reliable application.
Muhammad Atif Irshad; Rab Nawaz; Muhammad Zia Ur Rehman; Muhammad Adrees; Muhammad Rizwan; Shafaqat Ali; Sajjad Ahmad; Sehar Tasleem. Synthesis, characterization and advanced sustainable applications of titanium dioxide nanoparticles: A review. Ecotoxicology and Environmental Safety 2021, 212, 111978 .
AMA StyleMuhammad Atif Irshad, Rab Nawaz, Muhammad Zia Ur Rehman, Muhammad Adrees, Muhammad Rizwan, Shafaqat Ali, Sajjad Ahmad, Sehar Tasleem. Synthesis, characterization and advanced sustainable applications of titanium dioxide nanoparticles: A review. Ecotoxicology and Environmental Safety. 2021; 212 ():111978.
Chicago/Turabian StyleMuhammad Atif Irshad; Rab Nawaz; Muhammad Zia Ur Rehman; Muhammad Adrees; Muhammad Rizwan; Shafaqat Ali; Sajjad Ahmad; Sehar Tasleem. 2021. "Synthesis, characterization and advanced sustainable applications of titanium dioxide nanoparticles: A review." Ecotoxicology and Environmental Safety 212, no. : 111978.
The contamination of agricultural soils with cadmium (Cd) is one of the serious worldwide concerns for food security. Biochar and organic manures have been known for enhancing plant growth and minimizing toxic trace element stress in plants. However, less is known about the effect of different organic amendments on Cd and uptake of essential nutrients by wheat. Thus, the effects of rice straw biochar (RSB), maize stalk biochar (MSB), farmyard manure (FYM), and pressmud (PRM) at a rate of 1% w/w were tested for Cd immobilization in soil and mineral nutrient availability to wheat crop grown in Cd‐spiked soil (6.0 mg kg1). The amendments were added in Cd‐spiked soil before 12 days of seed sowing and wheat plants were harvested after maturity (115 days after sowing). The findings revealed that the use of amendments improved the number of grains per spike, straw and grain yield of wheat relative to control treatment. The treatments minimized the Cd and enhanced the contents of zinc (Zn), nitrogen (N), phosphorus (P), and potassium (K) in the leaves and grain of the wheat plants. Cadmium concentrations decreased by 35, 38, 68, and 63% in wheat grain, and grain yield increased by 19, 31, 68, and 58% with the application of FYM, PRM, MSB, and RSB, respectively. Overall, the application of MSB was more efficient in decreasing Cd concentrations in leaf and grains of wheat as compared to other conventional organic amendments.
Abdul Majeed; Abid Niaz; Muhammad Rizwan; Muhammad Imran; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni; Shafaqat Ali. Effects of biochar, farm manure, and pressmud on mineral nutrients and cadmium availability to wheat ( Triticum aestivum L.) in Cd‐contaminated soil. Physiologia Plantarum 2021, 1 .
AMA StyleAbdul Majeed, Abid Niaz, Muhammad Rizwan, Muhammad Imran, Abdulaziz Abdullah Alsahli, Mohammed Nasser Alyemeni, Shafaqat Ali. Effects of biochar, farm manure, and pressmud on mineral nutrients and cadmium availability to wheat ( Triticum aestivum L.) in Cd‐contaminated soil. Physiologia Plantarum. 2021; ():1.
Chicago/Turabian StyleAbdul Majeed; Abid Niaz; Muhammad Rizwan; Muhammad Imran; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni; Shafaqat Ali. 2021. "Effects of biochar, farm manure, and pressmud on mineral nutrients and cadmium availability to wheat ( Triticum aestivum L.) in Cd‐contaminated soil." Physiologia Plantarum , no. : 1.
Chromium (Cr) in water bodies is considered as a major environmental issue around the world. In the present study, aqueous Cr(VI) adsorption onto rice husk was studied as a function of various environmental parameters. Equilibrium time was achieved in 2 h and maximum Cr(VI) adsorption was 78.6% at pH 5.2 and 120 mg L−1 initial Cr(VI) concentration. In isotherm experiments, the maximum sorption was observed as 379.63 mg g−1. Among four isotherm models, Dubinin–Radushkevich and Langmuir models showed the best fitting to the adsorption data, suggesting physical and monolayer adsorption to be the dominant mechanism. The kinetic modeling showed that a pseudo-second order model was suitable to describe kinetic equilibrium data, suggesting a fast adsorption rate of Cr(VI). The results of FTIR spectroscopy indicated that mainly –OH and C–H contributed to Cr(VI) adsorption onto rice husk. This paper provided evidence that rice husk could be a cost-effective, environment-friendly and efficient adsorptive material for Cr(VI) removal from wastewater due to its high adsorption capacity.
Usman Khalil; Muhammad Bilal Shakoor; Shafaqat Ali; Sajid Rashid Ahmad; Muhammad Rizwan; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni. Selective Removal of Hexavalent Chromium from Wastewater by Rice Husk: Kinetic, Isotherm and Spectroscopic Investigation. Water 2021, 13, 263 .
AMA StyleUsman Khalil, Muhammad Bilal Shakoor, Shafaqat Ali, Sajid Rashid Ahmad, Muhammad Rizwan, Abdulaziz Abdullah Alsahli, Mohammed Nasser Alyemeni. Selective Removal of Hexavalent Chromium from Wastewater by Rice Husk: Kinetic, Isotherm and Spectroscopic Investigation. Water. 2021; 13 (3):263.
Chicago/Turabian StyleUsman Khalil; Muhammad Bilal Shakoor; Shafaqat Ali; Sajid Rashid Ahmad; Muhammad Rizwan; Abdulaziz Abdullah Alsahli; Mohammed Nasser Alyemeni. 2021. "Selective Removal of Hexavalent Chromium from Wastewater by Rice Husk: Kinetic, Isotherm and Spectroscopic Investigation." Water 13, no. 3: 263.