This page has only limited features, please log in for full access.

Unclaimed
Wenhao Yang
College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China

Basic Info

Basic Info is private.

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 19 May 2021 in Soil and Tillage Research
Reads 0
Downloads 0

Soil soluble organic nitrogen (SON) plays an important role in nitrogen cycling. However, the dynamic and influencing factors of SON in paddy soil are largely unknown. In this study, 36-year fertilization experiments with different fertilized (control (CK), chemical fertilizer (NPK), chemical fertilizer combined with cow manure (NPKM) and chemical fertilizer combined with straw (NPKS)) paddy soils were selected to investigate the dynamic changes and influencing factors of the SON content during the whole rice growth stage. We found that NPK, NPKM and NPKS increased the soil SON content by 20.61 %, 51.33 % and 52.50 %, respectively, compared with CK. Compared with the NPK treatment, the average SON contents in the NPKM and NPKS treatments were significantly increased by 25.46 % and 26.44 %, respectively, but there was no significant difference between the NPKM and NPKS treatments. Soil SON contents in different growth stages under the same fertilization treatments showed maturity stage > tillering stage > flowering stage > jointing stage > seedling stage. Structural equation model (SEM) analysis showed that bacterial biomass was an important factor affecting soil SON content, with a total path coefficient of 0.92, including direct path coefficients of 0.24 for soil SON and indirect path coefficients of 0.68 for soluble organic carbon, microbial biomass nitrogen and protease activity. Redundancy sequencing analysis showed that SON contents during different rice growth stages were significantly affected by the bacterial community, i.e., Chloroflexi in the early growth stage and Proteobacteria and Bacteroidetes in the later stage contributed 5.33 %, 37.40 %, and 2.17 % to the SON content variation, respectively. Conclusively, the dynamics of SON in paddy soil under long-term fertilization treatments are closely related to both fertilization treatments and the rice growth stage and are mainly affected by the bacterial community.

ACS Style

Jing Yang; Wenqi Guo; Fei Wang; Fan Wang; Liming Zhang; Biqing Zhou; Shihe Xing; Wenhao Yang. Dynamics and influencing factors of soluble organic nitrogen in paddy soil under different long-term fertilization treatments. Soil and Tillage Research 2021, 212, 105077 .

AMA Style

Jing Yang, Wenqi Guo, Fei Wang, Fan Wang, Liming Zhang, Biqing Zhou, Shihe Xing, Wenhao Yang. Dynamics and influencing factors of soluble organic nitrogen in paddy soil under different long-term fertilization treatments. Soil and Tillage Research. 2021; 212 ():105077.

Chicago/Turabian Style

Jing Yang; Wenqi Guo; Fei Wang; Fan Wang; Liming Zhang; Biqing Zhou; Shihe Xing; Wenhao Yang. 2021. "Dynamics and influencing factors of soluble organic nitrogen in paddy soil under different long-term fertilization treatments." Soil and Tillage Research 212, no. : 105077.

Journal article
Published: 03 May 2020 in Chemosphere
Reads 0
Downloads 0

Despite the increasing interest for biochar as a soil amendment, a knowledge gap remains on different particle size of biochar on soil phosphorous (P) availability and its impacts on microbial community. We hypothesized that biochar particle size and incubation temperature can significantly influence soil P availability and microbial community in subtropical acidic soil. A laboratory incubation study was established to investigate the effects of soil pH, available P and soil microbial responses to biochar addition having varying particle sizes using paddy soil and red soil under different incubation temperatures (15 °C & 25 °C). Biochar produced via pyrolysis of spent mushroom substrate feedstock was sieved into three particle sizes ((≤0.5 mm (fine), 0.5–1.0 mm (medium) and 1.0–2.0 mm (large)). The results exhibited that the fine particle biochar resulted in significantly higher release of P, soil pH, available P and bacterial species richness while simultaneously reducing the activities of phosphatase enzyme in both soils. Apprehending the impact of biochar particle size and incubation temperature, principal coordinate analysis (PCoA) predicted that soil microbial communities with fine particle biochar and high incubation temperature (25 °C) clustered separately. Redundancy analysis depicted that fine particle biochar had a direct association with available P and soil pH while high incubation temperature depicted a strong affinity for microbial communities. Hence, it is suggested that fine particle biochar and high incubation temperature may provide better habitat for microorganisms compared to the other particle sizes which may be due to improved soil pH and available P. However, a long term study of different biochar particles application in subtropical acidic soil needs to be pursued further for a more comprehensive understanding on this issue.

ACS Style

Rubab Sarfraz; Wenhao Yang; Shanshan Wang; Biqing Zhou; Shihe Xing. Short term effects of biochar with different particle sizes on phosphorous availability and microbial communities. Chemosphere 2020, 256, 126862 .

AMA Style

Rubab Sarfraz, Wenhao Yang, Shanshan Wang, Biqing Zhou, Shihe Xing. Short term effects of biochar with different particle sizes on phosphorous availability and microbial communities. Chemosphere. 2020; 256 ():126862.

Chicago/Turabian Style

Rubab Sarfraz; Wenhao Yang; Shanshan Wang; Biqing Zhou; Shihe Xing. 2020. "Short term effects of biochar with different particle sizes on phosphorous availability and microbial communities." Chemosphere 256, no. : 126862.

Article
Published: 20 February 2020 in Water, Air, & Soil Pollution
Reads 0
Downloads 0

Salmonella is a common zoonotic pathogen. Few studies have explored the effects of biochar on the survival of Salmonella in soil. Biochar made by pig manure at different temperatures were applied to four typical vegetable soils to investigate the survival dynamics of Salmonella. The results showed that the survival of Salmonella in latosol, red soil, and black soil was significantly promoted after biochar addition, but not in brown soil. The pyrolysis temperature of biochar had great effects on the survival of Salmonella. The survival time of Salmonella in the soil with biochar at 300°C was longer than that at 500 °C and 700 °C. The longest survival time of Salmonella was observed in Latosol with 300 °C biochar (111.36 days). Correlation analysis showed that soil pH, organic matter, and total nitrogen content were significantly positively correlated with the survival time of Salmonella in vegetable soils without biochar. However, the content of total potassium was the main controlling factor affecting the survival dynamics of Salmonella in soils with biochar.

ACS Style

Taoxiang Zhang; Wei Yu; Yuyu Shi; Wenhao Yang. Effects of Biochar Pyrolyzed at Different Temperatures on the Survival of Salmonella in Vegetable Soils. Water, Air, & Soil Pollution 2020, 231, 1 -8.

AMA Style

Taoxiang Zhang, Wei Yu, Yuyu Shi, Wenhao Yang. Effects of Biochar Pyrolyzed at Different Temperatures on the Survival of Salmonella in Vegetable Soils. Water, Air, & Soil Pollution. 2020; 231 (3):1-8.

Chicago/Turabian Style

Taoxiang Zhang; Wei Yu; Yuyu Shi; Wenhao Yang. 2020. "Effects of Biochar Pyrolyzed at Different Temperatures on the Survival of Salmonella in Vegetable Soils." Water, Air, & Soil Pollution 231, no. 3: 1-8.

Regular article
Published: 22 August 2019 in Plant and Soil
Reads 0
Downloads 0

The phytoextraction efficiency of metal contaminated soil needs to be improved. Organic amendment can be used to enhance the effectiveness of phytoextraction. However, studies on how organic amendment influence the rhizosphere microbial community of hyperaccumulators are still scarce. Two kinds of spent mushroom substrates (H and T) and their biochars (HB and TB) were used to facilitate the phytoextraction by Sedum alfredii Hance. The phytoextraction efficiency was monitored by measuring Cd, Zn and Pb extraction and the subsequent changes of soil microbial biomass, activity and diversity (indicators of soil health and functioning) . Compared to the control, the H and T amendments increased S. alfredii Cd uptake by 92% and 73%, and Zn by 106% and 67%, respectively. Organic amendments increased the microbial biomass and activities and substantially changed bacterial composition and diversity of rhizosphere soil. The relative abundances of some rhizosphere beneficial genera such as Promicromonospora, Acidibacter, Roseiflexus, Microbispora, Kribbella and Streptomyces were significantly increased under the H and T treatments. Spent mushroom substrates enhanced metal extraction of S. alfredii and improved soil health by increasing microbial biomass, activity and changing microbial community composition thus providing an effective option to facilitate phytoextraction of metal contaminated soil.

ACS Style

Wenhao Yang; Shanshan Wang; Wuzhong Ni; Christopher Rensing; Shihe Xing. Enhanced Cd-Zn-Pb-contaminated soil phytoextraction by Sedum alfredii and the rhizosphere bacterial community structure and function by applying organic amendments. Plant and Soil 2019, 444, 101 -118.

AMA Style

Wenhao Yang, Shanshan Wang, Wuzhong Ni, Christopher Rensing, Shihe Xing. Enhanced Cd-Zn-Pb-contaminated soil phytoextraction by Sedum alfredii and the rhizosphere bacterial community structure and function by applying organic amendments. Plant and Soil. 2019; 444 (1-2):101-118.

Chicago/Turabian Style

Wenhao Yang; Shanshan Wang; Wuzhong Ni; Christopher Rensing; Shihe Xing. 2019. "Enhanced Cd-Zn-Pb-contaminated soil phytoextraction by Sedum alfredii and the rhizosphere bacterial community structure and function by applying organic amendments." Plant and Soil 444, no. 1-2: 101-118.

Journal article
Published: 08 January 2019 in Sustainability
Reads 0
Downloads 0

The prime objective of biochar production is to contribute to nutrients recycling, reducing waste and converting useful bio-wastes into carbon rich products in the environment. The present study was intended to systematically evaluate the effect of pyrolysis conditions and characteristics of feedstock influencing the generation of biochar. The study revealed the nutritional importance of waste mushroom substrate (WMS) biochar which may elevate soil nutritional status and soil quality. The results showed that the yields and properties of WMS biochar depended principally on the applied temperature where pyrolysis at higher temperatures, that is, 600 °C and 700 °C produced biochar having high ash, P and K contents. Moreover, numerous useful macro and micro nutrients such as Ca, Mg, Fe and Zn were observed to positively correlate with the increase in temperature. The WMS biochar in our study is highly alkaline which can be used to rectify acidic soil pH. Overall our results suggest that WMS biochar being a rich source of nutrients can be the best remedy to maintain and further enhance the soil nutritional status. Thus by interpreting biochar feedstock characteristics and pyrolysis conditions, the regulation of tailored WMS biochar manufacturing and application in soil can be facilitated.

ACS Style

Rubab Sarfraz; Siwei Li; Wenhao Yang; Biqing Zhou; Shihe Xing. Assessment of Physicochemical and Nutritional Characteristics of Waste Mushroom Substrate Biochar under Various Pyrolysis Temperatures and Times. Sustainability 2019, 11, 277 .

AMA Style

Rubab Sarfraz, Siwei Li, Wenhao Yang, Biqing Zhou, Shihe Xing. Assessment of Physicochemical and Nutritional Characteristics of Waste Mushroom Substrate Biochar under Various Pyrolysis Temperatures and Times. Sustainability. 2019; 11 (1):277.

Chicago/Turabian Style

Rubab Sarfraz; Siwei Li; Wenhao Yang; Biqing Zhou; Shihe Xing. 2019. "Assessment of Physicochemical and Nutritional Characteristics of Waste Mushroom Substrate Biochar under Various Pyrolysis Temperatures and Times." Sustainability 11, no. 1: 277.

Article
Published: 28 October 2018 in Bulletin of Environmental Contamination and Toxicology
Reads 0
Downloads 0

Assessing the effects of phytoextraction on soil properties is important for successful implementation of this method. This study was conducted to evaluate the effects of phytoextraction by Sedum alfredii Hance on the availability of metals and improvement of the microbial community (biomass and structure) of a Cd, Zn and Pb contaminated soil. Phytoextraction significantly decreased the acid extractable, Mn/Fe oxide and organic matter bound fractions of Cd and Zn as well as the acid extractable Pb in the rhizosphere soil. Soil microbial biomass, total, bacterial, actinomycete, fungal, AM fungal, and protozoa phospholipid fatty acids (PLFAs) were significantly enhanced. The ratio of fungal to bacterial and gram-positive to gram-negative bacterial PLFAs were significantly changed. Redundancy analysis showed that microbial biomass and specific groups of PLFAs were negatively correlated with available metals while positively correlated with dissolved organic carbon/organic acids. In conclusion, phytoextraction by S. alfredii reduced available metal concentrations and improved soil microbial properties.

ACS Style

Wenhao Yang; Pei Li; Christopher Rensing; San’An Nie. Changes in Metal Availability and Improvements in Microbial Properties After Phytoextraction of a Cd, Zn and Pb Contaminated Soil. Bulletin of Environmental Contamination and Toxicology 2018, 101, 624 -630.

AMA Style

Wenhao Yang, Pei Li, Christopher Rensing, San’An Nie. Changes in Metal Availability and Improvements in Microbial Properties After Phytoextraction of a Cd, Zn and Pb Contaminated Soil. Bulletin of Environmental Contamination and Toxicology. 2018; 101 (5):624-630.

Chicago/Turabian Style

Wenhao Yang; Pei Li; Christopher Rensing; San’An Nie. 2018. "Changes in Metal Availability and Improvements in Microbial Properties After Phytoextraction of a Cd, Zn and Pb Contaminated Soil." Bulletin of Environmental Contamination and Toxicology 101, no. 5: 624-630.

Journal article
Published: 12 July 2018 in Applied Soil Ecology
Reads 0
Downloads 0

Soil fungi play an important role in agricultural ecosystems, yet the understanding of the responses of fungi community and function to different fertilization is limited. Here we report the responses of fungal communities and functions to 34 years of application of inorganic fertilizer (NPK), rice straw combined with inorganic fertilizer (NPKS), and no fertilizer (CK). The fungal communities were identified by Illumina high-throughput sequencing and the functional groups were inferred with FUNGuild. Three predominant Phyla of Ascomycota, Basidiomycota, Zygomycota were identified in three treatments. A significantly lower proportion of Ascomycota (47%) but higher relative abundance of Basidiomycota (28%) were observed in the NPKS treatment compared with the CK (71% and 14%, respectively). A low proportion of Basidiomycota (10%), and no significant changes in Ascomycota (74%) were found in the NPK treatment in comparison to the CK (14% and 71%, respectively). The relative abundance of Zygomycota in the NPKS (8%) and NPK (9%) treatments were significantly higher than in the CK (5%). Diversity analysis showed that indexes including Shannon, Simpson, Chao 1 and ACE all significantly declined in NPK but increased in NPKS compared with CK. FUNGuild revealed that symbiotrophic fungi in the NPKS treatment (8%) were significantly higher than in the NPK (3%) and CK (3%) treatments, and dominated by the genera Redeckera and Tricholoma, the species Trichoderma atroviride and the order Scleroderma. However, a higher proportion of pathotrophic fungi in the NPK treatment (19%) were detected than in the NPKS (11%) and CK (10%) treatments, and dominated by the species Schizangiella serpentis. Redundancy analysis (RDA) showed that fungal community structure and function were more strongly related to moisture, EC and porosity in the soil. We suggest that the sole application of inorganic fertilizer results in great changes in fungal community composition and the hazard of excess growth of pathogenic fungi, whereas combined organic fertilizer and rice straw is beneficial to maintain a healthy ecological environment and the diversity of fungal communities in paddy soil.

ACS Style

San'an Nie; Xiumei Lei; Lixia Zhao; Philip C. Brookes; Fei Wang; Chengrong Chen; Wenhao Yang; Shihe Xing. Fungal communities and functions response to long-term fertilization in paddy soils. Applied Soil Ecology 2018, 130, 251 -258.

AMA Style

San'an Nie, Xiumei Lei, Lixia Zhao, Philip C. Brookes, Fei Wang, Chengrong Chen, Wenhao Yang, Shihe Xing. Fungal communities and functions response to long-term fertilization in paddy soils. Applied Soil Ecology. 2018; 130 ():251-258.

Chicago/Turabian Style

San'an Nie; Xiumei Lei; Lixia Zhao; Philip C. Brookes; Fei Wang; Chengrong Chen; Wenhao Yang; Shihe Xing. 2018. "Fungal communities and functions response to long-term fertilization in paddy soils." Applied Soil Ecology 130, no. : 251-258.

Regular article
Published: 29 December 2017 in Plant and Soil
Reads 0
Downloads 0

Microbial properties are often used to assess the recovery of soil health during phytoremediation. A field survey was conducted to test the effects of different plant metallophytes (excluder and hyperaccumulator) on soil microbial characteristics. Microbial properties in the rhizosphere of four metallophytes (Sedum alfredii, Rubus hunanensis, Lysimachia christinae and Clinopodium gracile) growing naturally on highly Cd-, Zn- and Pb-contaminated soils were investigated. Microbial biomass carbon, basal respiration, enzyme activities and phospholipid fatty acids were analyzed to study microbial community function and composition. The total microbial biomass, bacterial, actinomycete, fungal, and protozoan PLFAs, basal respiration and enzyme activities in the rhizosphere of metallophytes were significantly higher than in bulk soil. Moreover, the largest increases were found in the rhizosphere of the hyperaccumulator S. alfredii. The microbial community composition in the rhizosphere of S. alfredii was significantly different from the other 3 plants. Redundancy analysis showed that soil physico-chemical properties such as metal concentrations, labile carbon and pH explained most of the variation in microbial community biomass, activity and structure. Metallophytes using different strategies to adapt to metal-rich soils induced different effects on soil microbial properties, which were also influenced by physico-chemical characteristics.

ACS Style

Wenhao Yang; Pei Li; Christopher Rensing; Wuzhong Ni; Shihe Xing. Biomass, activity and structure of rhizosphere soil microbial community under different metallophytes in a mining site. Plant and Soil 2017, 434, 245 -262.

AMA Style

Wenhao Yang, Pei Li, Christopher Rensing, Wuzhong Ni, Shihe Xing. Biomass, activity and structure of rhizosphere soil microbial community under different metallophytes in a mining site. Plant and Soil. 2017; 434 (1-2):245-262.

Chicago/Turabian Style

Wenhao Yang; Pei Li; Christopher Rensing; Wuzhong Ni; Shihe Xing. 2017. "Biomass, activity and structure of rhizosphere soil microbial community under different metallophytes in a mining site." Plant and Soil 434, no. 1-2: 245-262.

Research article
Published: 18 December 2017 in PLOS ONE
Reads 0
Downloads 0

To investigate the effects of different nutrient management regimes on the soil chemical, eco-enzymatic stoichiometric and microbial characteristics, soil samples were collected from a 30-year, long-term field experiment with six plots growing rice. The results showed that as integrated fertilization increased, so did the concentrations of soil total or available nutrients and microbial biomass carbon (MBC). Our results also found enhanced soil basal respiration and cumulative carbon mineralization compared to chemical fertilization alone at the same nutrient doses. The activities of soil protease (Pro), β-glucosidase (βG), N-acetyl-glucosaminidase (NAG) and acid phosphatase (AP) from the integrated fertilization treatments were significantly higher than those of the treatments without organic manure, so did the activities of soil leucyl aminopeptidase (LAP) and urease (Ure) from the treatment with organic manure in addition to farmer practise fertilization (NPKM2). The stoichiometric ratios, expressed as lnβG/ln(NAG+LAP)/lnPro/lnUre/lnAP, ranged from 1:0.94:1.04:0.67:1.01 to 1:0.98:1.10:0.78:1.25, indicating that the acquisition of C, N and P changed consistently and synchronously under different nutrient management strategies. Integrated fertilization was more beneficial to the acquisition and utilization of soil organic carbon compared to low-molecular-weight organic nitrogen. We concluded that protease and urease should be considered in eco-enzymatic stoichiometric assessments for the hydrolysis of proteins, amino acids, carbohydrates and phosphomonoesters in soil, and integrated fertilization with chemical fertilizers and organic manure should be recommended as a preferable nutrient management system for intensive rice cultivation.

ACS Style

Sen Lin; Shaoxian Wang; Yuanli Si; Wenhao Yang; ShaoWei Zhu; Wuzhong Ni. Variations in eco-enzymatic stoichiometric and microbial characteristics in paddy soil as affected by long-term integrated organic-inorganic fertilization. PLOS ONE 2017, 12, e0189908 .

AMA Style

Sen Lin, Shaoxian Wang, Yuanli Si, Wenhao Yang, ShaoWei Zhu, Wuzhong Ni. Variations in eco-enzymatic stoichiometric and microbial characteristics in paddy soil as affected by long-term integrated organic-inorganic fertilization. PLOS ONE. 2017; 12 (12):e0189908.

Chicago/Turabian Style

Sen Lin; Shaoxian Wang; Yuanli Si; Wenhao Yang; ShaoWei Zhu; Wuzhong Ni. 2017. "Variations in eco-enzymatic stoichiometric and microbial characteristics in paddy soil as affected by long-term integrated organic-inorganic fertilization." PLOS ONE 12, no. 12: e0189908.

Journal article
Published: 18 October 2017 in International Journal of Environmental Research and Public Health
Reads 0
Downloads 0

Escherichia coli O157:H7 is a well-recognized cause of human illness. Survival of Escherichia coli O157:H7 in five purple soils from Sichuan Province was investigated. The dynamics of E. coli O157:H7 survival in purple soils were described by the Weibull model. Results showed that this model is suitable to fit survival curves of E. coli O157:H7 in purple soils, with the calculated td value (survival time needed to reach the detection limit of 100 CFU·g−1) ranging from 2.99 days to 26.36 days. The longest survival time of E. coli O157:H7 was observed in neutral purple soils (24.49 days), followed by alkalescent purple soil (18.62 days) and acid purple soil (3.48 days). The redundancy analysis (RDA) revealed that td values were significantly enhanced by soil nutrition (total organic carbon (OC), total nitrogen (TN), available potassium (AK) and the ratio of humic acid to fulvic acid (Ha/Fa)), but were significantly suppressed by iron and aluminum oxide.

ACS Style

Taoxiang Zhang; Suping Hu; Wenhao Yang. Variations of Escherichia coli O157:H7 Survival in Purple Soils. International Journal of Environmental Research and Public Health 2017, 14, 1246 .

AMA Style

Taoxiang Zhang, Suping Hu, Wenhao Yang. Variations of Escherichia coli O157:H7 Survival in Purple Soils. International Journal of Environmental Research and Public Health. 2017; 14 (10):1246.

Chicago/Turabian Style

Taoxiang Zhang; Suping Hu; Wenhao Yang. 2017. "Variations of Escherichia coli O157:H7 Survival in Purple Soils." International Journal of Environmental Research and Public Health 14, no. 10: 1246.

Research article
Published: 18 April 2017 in Environmental Science and Pollution Research
Reads 0
Downloads 0

The recovery of microbial community and activities is crucial to the remediation of contaminated soils. Distance-dependent variations of microbial community composition and metabolic characteristics in the rhizospheric soil of hyperaccumulator during phytoextraction are poorly understood. A 12-month phytoextraction experiment with Sedum alfredii in a Cd-contaminated soil was conducted. A pre-stratified rhizobox was used for separating sub-layer rhizospheric (0–2, 2–4, 4–6, 6–8, 8–10 mm from the root mat)/bulk soils. Soil microbial structure and function were analyzed by phospholipid fatty acid (PLFA) and MicroResp™ methods. The concentrations of total and specified PLFA biomarkers and the utilization rates for the 14 substrates (organic carbon) in the 0–2-mm sub-layer rhizospheric soil were significantly increased, as well as decreased with the increase in the distance from the root mat. Microbial structure measured by the ratios of different groups of PLFAs such as fungal/bacterial, monounsaturated/saturated, ratios of Gram-positive to Gram-negative (GP/GN) bacterial, and cyclopropyl/monoenoic precursors and 19:0 cyclo/18:1ω7c were significantly changed in the 0–2-mm soil. The PLFA contents and substrate utilization rates were negatively correlated with pH and total, acid-soluble, and reducible fractions of Cd, while positively correlated with labile carbon. The dynamics of microbial community were likely due to root exudates and Cd uptake by S. alfredii. This study revealed the stimulations and gradient changes of rhizosphere microbial community through phytoextraction, as reduced Cd concentration, pH, and increased labile carbons are due to the microbial community responses.

ACS Style

Wenhao Yang; Taoxiang Zhang; Sen Lin; Wuzhong Ni. Distance-dependent varieties of microbial community structure and metabolic functions in the rhizosphere of Sedum alfredii Hance during phytoextraction of a cadmium-contaminated soil. Environmental Science and Pollution Research 2017, 24, 14234 -14248.

AMA Style

Wenhao Yang, Taoxiang Zhang, Sen Lin, Wuzhong Ni. Distance-dependent varieties of microbial community structure and metabolic functions in the rhizosphere of Sedum alfredii Hance during phytoextraction of a cadmium-contaminated soil. Environmental Science and Pollution Research. 2017; 24 (16):14234-14248.

Chicago/Turabian Style

Wenhao Yang; Taoxiang Zhang; Sen Lin; Wuzhong Ni. 2017. "Distance-dependent varieties of microbial community structure and metabolic functions in the rhizosphere of Sedum alfredii Hance during phytoextraction of a cadmium-contaminated soil." Environmental Science and Pollution Research 24, no. 16: 14234-14248.

Journal article
Published: 27 December 2016 in Journal of Soils and Sediments
Reads 0
Downloads 0

The aim of this study was to investigate whether two subtropical fruit species, Dimocarpus longan Lour. (Wulonglin) and Eriobotrya japonica Lindl. (Zaozhong 6), could directly take up soluble organic nitrogen (N), and if there was differential uptake of different forms of N between the two species. The stable isotopic tracing experiment was carried out using three 15N-labeled tracers [glycine-2-13C-15N, (15NH4)2SO4, and K(15NO3)] to examine the short-term (2, 6, and 72 h) uptake and distribution pattern of N within the plant in 1-year-old seedlings of both fruit species. After glycine-2-13C-15N application, the ratios of 13C to 15N concentration in the roots and whole seedlings of both Wulonglin and Zaozhong 6 were close to 1:1 at 2 and 6 h, respectively, showing that both fruit species could directly take up intact glycine. The 15NH4+ absorbed by Wulonglin and Zaozhong 6 whole seedlings in the (15NH4)2SO4 treatment were 13.2 and 9.2 times higher than glycine-derived-15N, while 15NO3− absorbed in the K(15NO3) treatment were 27.7 and 7.7 times higher than glycine-derived-15N in the glycine-2-13C-15N treatment, respectively. This indicated that soluble organic N might not be the dominant N source taken up by both fruit species. Results also showed that Wulonglin preferred NO3−, while Zaozhong 6 preferred NH4+. The greater uptake of 15NH4+ and 15NO3− than glycine-derived-15N by both fruit species might be related to their long-term adaptation to the supply of large quantity of inorganic N via fertilization. To elucidate the mechanisms responsible for the differential uptake of different forms of N by these two fruit species, further studies on mycorrhizal associations, transporter genes, and glycine metabolisms are warranted. This study has demonstrated that both D. longan Lour. and E. japonica Lindl. seedlings were able to take up intact glycine directly, while the NO3− and NH4+ were still dominant N forms absorbed by both fruit species.

ACS Style

Biqing Zhou; Liming Zhang; Wenhao Yang; Yanlin Mao; Chengrong Chen; Shihe Xing. Differential uptake of soluble organic and inorganic nitrogen by two fruit species: Dimocarpus longan Lour. and Eriobotrya japonica Lindl. Journal of Soils and Sediments 2016, 17, 1579 -1587.

AMA Style

Biqing Zhou, Liming Zhang, Wenhao Yang, Yanlin Mao, Chengrong Chen, Shihe Xing. Differential uptake of soluble organic and inorganic nitrogen by two fruit species: Dimocarpus longan Lour. and Eriobotrya japonica Lindl. Journal of Soils and Sediments. 2016; 17 (6):1579-1587.

Chicago/Turabian Style

Biqing Zhou; Liming Zhang; Wenhao Yang; Yanlin Mao; Chengrong Chen; Shihe Xing. 2016. "Differential uptake of soluble organic and inorganic nitrogen by two fruit species: Dimocarpus longan Lour. and Eriobotrya japonica Lindl." Journal of Soils and Sediments 17, no. 6: 1579-1587.

Original articles
Published: 12 August 2014 in International Journal of Phytoremediation
Reads 0
Downloads 0

A hydroponic experiment was conducted to investigate the effects of cadmium (Cd) on chlorophyll fluorescence and photosynthetic parameters on a Cd accumulating plant of Elsholtzia argyi. Four weeks-seedlings of E. argyi were treated with 0 (CK) 5, 10, 15, 20, 25, 30, 40, 50 and 100 μmol L−1 Cd for 21days. Fv/Fo, Fv/Fm, qP, ΦPSП, ETR and Fv′/Fm′ were significantly increased under low Cd (5–15 μmol L−1 for Fv/Fo, Fv/Fm and qP, 5–10 μmol L−1 for ΦPSП, ETR and Fv′/Fm′) stress, and these parameters were similar to control under Cd ≤ 50μmol L−1. All above parameters were significantly decreased at 100 μmol L−1 Cd. Compared with control, Pn was significantly (P < 0.05) increased under 5–30 μmol L−1 Cd. However, 50 and 100 μmol L−1 Cd significantly (P < 0.05) reduced it. Gs and Tr were substantially decreased at 50–100 and 40–100 μmol L−1 Cd, respectively. Ci was significantly increased at 50 and 100 μmol L−1 Cd. High Cd-induced decrease of Pn is not only connected to stomatal limitation but also to the inhibition of Fv/Fo, Fv/Fm, ΦPSП, qP, ETR and increase of NPQ. Maintain chlorophyll fluorescence and photosynthesis parameters under its Cd tolerance threshold were one of tolerance mechanisms in E. argyi.

ACS Style

Siliang Li; Wenhao Yang; Tingting Yang; Yan Chen; Wuzhong Ni. Effects of Cadmium Stress on Leaf Chlorophyll Fluorescence and Photosynthesis ofElsholtzia argyi—A Cadmium Accumulating Plant. International Journal of Phytoremediation 2014, 17, 85 -92.

AMA Style

Siliang Li, Wenhao Yang, Tingting Yang, Yan Chen, Wuzhong Ni. Effects of Cadmium Stress on Leaf Chlorophyll Fluorescence and Photosynthesis ofElsholtzia argyi—A Cadmium Accumulating Plant. International Journal of Phytoremediation. 2014; 17 (1):85-92.

Chicago/Turabian Style

Siliang Li; Wenhao Yang; Tingting Yang; Yan Chen; Wuzhong Ni. 2014. "Effects of Cadmium Stress on Leaf Chlorophyll Fluorescence and Photosynthesis ofElsholtzia argyi—A Cadmium Accumulating Plant." International Journal of Phytoremediation 17, no. 1: 85-92.

Journal article
Published: 31 July 2014 in Journal of Soils and Sediments
Reads 0
Downloads 0

Understanding the adsorption processes of Escherichia coli O157:H7 in the soil–water system is important in order to protect public health from waterborne diseases. The aim of this study was to investigate the role of pH on E. coli O157:H7 adsorption on kaolinite and goethite. The adsorption of E. coli O157:H7 on kaolinite and goethite over a wide range of pH levels (3–10) was determined. Confocal microscopy, zeta potential, classic Derjaguin–Landau–Verwey–Overbeek (DLVO) theory, and Fourier transform infrared spectrometry were used to provide insights into the mechanisms that affect E. coli O157:H7 adsorption. E. coli O157:H7 adsorption was greater on the positively charged goethite than on the negatively charged kaolinite. The maximum adsorption of E. coli O157:H7 occurred on goethite at pH 3, and increasing pH resulted in decreased adsorption on kaolinite and goethite. Confocal microscopy images confirmed that higher affinities of E. coli O157:H7 occurred on kaolinite and goethite at low pH. Zeta potential, interaction energy, and Fourier transform infrared analysis indicated that electrostatic forces between the E. coli O157:H7 and goethite surfaces controlled the extent of E. coli O157:H7 adsorbed onto goethite surfaces at low pH, and hydrogen bonding and inner-sphere complexation play majors roles in E. coli O157:H7 adsorption to goethite at high pH levels. However, electrostatic force is not the main force for E. coli O157:H7 adsorption to kaolinite. Goethite displayed a larger adsorption capacity for E. coli O157:H7 than kaolinite. The adsorption of bacteria on kaolinite and goethite was pH dependent, and high percentages of E. coli O157:H7 adsorption to kaolinite and goethite occurred at low pH levels.

ACS Style

Taoxiang Zhang; Wenhao Yang; Xinyu Zhu; Haizhen Wang; Philip C. Brookes; Jianming Xu. The pH dependence of Escherichia coli O157:H7 adsorption on kaolinite and goethite surfaces. Journal of Soils and Sediments 2014, 15, 106 -116.

AMA Style

Taoxiang Zhang, Wenhao Yang, Xinyu Zhu, Haizhen Wang, Philip C. Brookes, Jianming Xu. The pH dependence of Escherichia coli O157:H7 adsorption on kaolinite and goethite surfaces. Journal of Soils and Sediments. 2014; 15 (1):106-116.

Chicago/Turabian Style

Taoxiang Zhang; Wenhao Yang; Xinyu Zhu; Haizhen Wang; Philip C. Brookes; Jianming Xu. 2014. "The pH dependence of Escherichia coli O157:H7 adsorption on kaolinite and goethite surfaces." Journal of Soils and Sediments 15, no. 1: 106-116.

Journal article
Published: 04 June 2014 in Environmental Science and Pollution Research
Reads 0
Downloads 0

Identification and classification of metal-accumulating plant species is essential for phytoextraction. Cluster analysis is used for classifying individuals based on measured characteristics. In this study, classification of plant species for metal accumulation was conducted using cluster analysis based on a practical survey. Forty plant samples belonging to 21 species were collected from an ancient silver-mining site. Five groups such as hyperaccumulator, potential hyperaccumulator, accumulator, potential accumulator, and normal accumulating plant were graded. For Cd accumulation, the ancient silver-mining ecotype of Sedum alfredii was treated as a Cd hyperaccumulator, and the others were normal Cd-accumulating plants. For Zn accumulation, S. alfredii was considered as a potential Zn hyperaccumulator, Conyza canadensis and Artemisia lavandulaefolia were Zn accumulators, and the others were normal Zn-accumulating plants. For Pb accumulation, S. alfredii and Elatostema lineolatum were potential Pb hyperaccumulators, Rubus hunanensis, Ajuga decumbens, and Erigeron annuus were Pb accumulators, C. canadensis and A. lavandulaefolia were potential Pb accumulators, and the others were normal Pb-accumulating plants. Plant species with the potential for phytoextraction were identified such as S. alfredii for Cd and Zn, C. canadensis and A. lavandulaefolia for Zn and Pb, and E. lineolatum, R. hunanensis, A. decumbens, and E. annuus for Pb. Cluster analysis is effective in the classification of plant species for metal accumulation and identification of potential species for phytoextraction.

ACS Style

Wenhao Yang; He Li; Taoxiang Zhang; Lin Sen; Wuzhong Ni. Classification and identification of metal-accumulating plant species by cluster analysis. Environmental Science and Pollution Research 2014, 21, 10626 -10637.

AMA Style

Wenhao Yang, He Li, Taoxiang Zhang, Lin Sen, Wuzhong Ni. Classification and identification of metal-accumulating plant species by cluster analysis. Environmental Science and Pollution Research. 2014; 21 (18):10626-10637.

Chicago/Turabian Style

Wenhao Yang; He Li; Taoxiang Zhang; Lin Sen; Wuzhong Ni. 2014. "Classification and identification of metal-accumulating plant species by cluster analysis." Environmental Science and Pollution Research 21, no. 18: 10626-10637.

Journal article
Published: 14 March 2014 in Journal of Soils and Sediments
Reads 0
Downloads 0

Effects of phytoextraction by Sedum alfredii H., a native cadmium hyperaccumulator, on metal removal from and microbial property improvement of a multiple heavy metals contaminated soil were studied under greenhouse conditions.

ACS Style

Wenhao Yang; Taoxiang Zhang; Siliang Li; Wuzhong Ni. Metal removal from and microbial property improvement of a multiple heavy metals contaminated soil by phytoextraction with a cadmium hyperaccumulator Sedum alfredii H. Journal of Soils and Sediments 2014, 14, 1385 -1396.

AMA Style

Wenhao Yang, Taoxiang Zhang, Siliang Li, Wuzhong Ni. Metal removal from and microbial property improvement of a multiple heavy metals contaminated soil by phytoextraction with a cadmium hyperaccumulator Sedum alfredii H. Journal of Soils and Sediments. 2014; 14 (8):1385-1396.

Chicago/Turabian Style

Wenhao Yang; Taoxiang Zhang; Siliang Li; Wuzhong Ni. 2014. "Metal removal from and microbial property improvement of a multiple heavy metals contaminated soil by phytoextraction with a cadmium hyperaccumulator Sedum alfredii H." Journal of Soils and Sediments 14, no. 8: 1385-1396.