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Drought is a key factor restricting plant survival, growth and development. The physiological parameters of plants are commonly used to determine the water status, in order to irrigate appropriately and save water. In this study, mulberry (Morus alba L.) and paper mulberry (Broussonetia papyrifera (L.) Vent.) seedlings were used as experimental materials, and four soil moisture treatments were set up for both plant species: 70–75% (CK: the control group, referred to as T0), 55–60% (T1: mild drought), 40–45% (T2: moderate drought), and 25–30% (T3: severe drought). The growth parameter of the plants was measured every two days from the onset of the treatment, the photosynthetic and electrophysiological parameters of the plants were measured every other week for a total of five times. The physiological responses and electrophysiological traits of leaves under different treatment levels were analyzed. The results showed that the photosynthetic and electrophysiological parameters could characterize the response of mulberry growth and development to soil water, and the growth and electrophysiological parameters could characterize the response of paper mulberry growth and development to soil water. Mild drought had no significant effects on the growth and development of mulberry and paper mulberry.
Rui Yu; Yanyou Wu; Deke Xing. Can Electrophysiological Parameters Substitute for Growth, and Photosynthetic Parameters to Characterize the Response of Mulberry and Paper Mulberry to Drought? Plants 2021, 10, 1772 .
AMA StyleRui Yu, Yanyou Wu, Deke Xing. Can Electrophysiological Parameters Substitute for Growth, and Photosynthetic Parameters to Characterize the Response of Mulberry and Paper Mulberry to Drought? Plants. 2021; 10 (9):1772.
Chicago/Turabian StyleRui Yu; Yanyou Wu; Deke Xing. 2021. "Can Electrophysiological Parameters Substitute for Growth, and Photosynthetic Parameters to Characterize the Response of Mulberry and Paper Mulberry to Drought?" Plants 10, no. 9: 1772.
The nutrient metabolism, growth and development of plants are strongly affected by its nutrient plunder, and plants have different adaptive mechanisms to low-nutrient environments. The electrophysiological activities involve almost all life processes of plants. In this study, the active transport flow of nutrient (NAF) and nutrient plunder capacity (NPC) of plants were defined based on leaf intrinsic impedance (IZ), capacitive reactance (IXc), inductive reactance (IXL) and capacitance (IC) to evaluate the nutrient plunder capacity of plants for the first time. The results indicate that Orychophragmus violaceus had higher (p< 0.01) NPC and IC and lower (p< 0.01) IR, IXc, IXL and IZ as compared to Brassica napus L., which supports a superior ion affinity and that it could be better adapted to low-nutrient environments. UAF and NPC of plants exhibited good correlations with crude protein, crude ash and water content, and precisely revealed the plunder capacity and adaptive strategies of plants to nutrients. The present work highlights that O. violaceus had superior NPC and ion affinity compared with B. napus, and provided a novel, rapid, reliable method based on the plant’s electrophysiological information for real-time determination of the nutrient plunder capacity of plants.
Cheng Zhang; Yue Su; Yanyou Wu; Haitao Li; Ying Zhou; Deke Xing. Comparison on the Nutrient Plunder Capacity of Orychophragmus violaceus and Brassica napus L. Based on Electrophysiological Information. Horticulturae 2021, 7, 206 .
AMA StyleCheng Zhang, Yue Su, Yanyou Wu, Haitao Li, Ying Zhou, Deke Xing. Comparison on the Nutrient Plunder Capacity of Orychophragmus violaceus and Brassica napus L. Based on Electrophysiological Information. Horticulturae. 2021; 7 (8):206.
Chicago/Turabian StyleCheng Zhang; Yue Su; Yanyou Wu; Haitao Li; Ying Zhou; Deke Xing. 2021. "Comparison on the Nutrient Plunder Capacity of Orychophragmus violaceus and Brassica napus L. Based on Electrophysiological Information." Horticulturae 7, no. 8: 206.
Photosynthesis is crucial to the reduction of carbon dioxide in the atmosphere. The key enzyme of photosynthesis, Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco), has two mutably competing substrates, CO2 and O2. It has features of carboxylase and oxygenase. Rubisco performs the function of carboxylase to reduce inorganic carbon to form organic substances, which precondition is that more carbon dioxide accumulates around it. Carbon dioxide concentrating mechanisms (CCMs) are vital to cope with the limit of carbon dioxide. Various bicarbonate use pathway has a differential contribution to inorganic carbon assimilation. Bicarbonate transport, extracellular bicarbonate dehydration, or H+-ATPase-driven bicarbonate uptake, which induced CCMs, can support a considerable share of photosynthesis in photosynthetic organisms. However, CCMs in thylakoid membranes may be the most important. The CCMs occurred in the plasma membrane were secondary, evolutionary, and inducible, while CCMs coupled with photosynthetic oxygen evolution in thylakoid membranes, were primitive, major, and indispensable. A hypothetical schematic model of CCMs occurred in the plasma membrane and thylakoid membranes being proposed.
Yanyou Wu. Bicarbonate use and carbon dioxide concentrating mechanisms in photosynthetic organisms. Acta Geochimica 2021, 1 -8.
AMA StyleYanyou Wu. Bicarbonate use and carbon dioxide concentrating mechanisms in photosynthetic organisms. Acta Geochimica. 2021; ():1-8.
Chicago/Turabian StyleYanyou Wu. 2021. "Bicarbonate use and carbon dioxide concentrating mechanisms in photosynthetic organisms." Acta Geochimica , no. : 1-8.
The circadian clock regulates a wide range of physiological processes in plants. Here we showed the circadian variations of the electrical signals in Broussonetia papyrifera L. and Morus alba L. in a natural state, which were analyzed using the day–night cycle method. The circadian characteristics of different plant electrical signals were compared by constructing a coupling model for the circadian rhythm of plant electrical signals. The electrical signal sensor had two electrode plates, which were fixed on the two ends of the splint, leaves could then be clamped and measured. The clamping force between the two electrode plates was uniform, which enabled continuous and nondestructive measurements. The results showed that an electric cyclic behavior was observed (circadian cycle) with the circadian variation in the plants within 24 h. Both the resistance (R) and the impedance (Z) increased firstly in the early morning and then decreased subsequently, while the capacitance (C) showed an opposite variation. Under different weather conditions, plant electrical signals showed periodic changes when the temperature and light intensity in the environment slightly changed within the physiological tolerance of plant. This indicated that the circadian clock of plant electrical signals could be maintained endogenously. The variation curves of plant electrical signals as time increased were fitted using the sine equation. The characteristic parameters of circadian rhythm of plant electrical signals were obtained. We found that although all plant electrical signals exhibited electric cyclic behavior, but the characteristics of circadian rhythms of electrical signals were different. This study provided a scientific basic for precisely monitoring plant electrical signals, and a reference for revealing circadian rhythms of plant electrical signals and their occurrence rules.
Jinjin Xie; Yanyou Wu; Deke Xing; Zhongying Li; Tian Chen; Rongrong Duan; Xiaoxing Zhu. A comparative study on the circadian rhythm of the electrical signals of Broussonetia papyrifera and Morus alba. Plant Signaling & Behavior 2021, 1950899 .
AMA StyleJinjin Xie, Yanyou Wu, Deke Xing, Zhongying Li, Tian Chen, Rongrong Duan, Xiaoxing Zhu. A comparative study on the circadian rhythm of the electrical signals of Broussonetia papyrifera and Morus alba. Plant Signaling & Behavior. 2021; ():1950899.
Chicago/Turabian StyleJinjin Xie; Yanyou Wu; Deke Xing; Zhongying Li; Tian Chen; Rongrong Duan; Xiaoxing Zhu. 2021. "A comparative study on the circadian rhythm of the electrical signals of Broussonetia papyrifera and Morus alba." Plant Signaling & Behavior , no. : 1950899.
If the photosynthetic organisms assimilated only CO2 in the Archean atmosphere, hydroxide ion in the Archean seawater would not increase. If plants would not consume bicarbonate as a direct substrate during photosynthesis, it is difficult to explain the evolution of Earth's environment. To date, it is generally accepted that photosynthetic O2 evolution of plants come from water photolysis. However, it should be debated by evaluating the effect of bicarbonate in photosynthetic O2 evolution, analyzing the role of carbonic anhydrase (CA) in photosynthetic O2 evolution, and the relationship between thylakoid CA and photosynthetic O2 evolution. In the paper, I propose that bicarbonate is directly used as substrate to participate in photosynthetic O2 evolution. The rationality of bicarbonate photolysis of plants is discussed from the thermodynamics and evolution of Earth's environment. The isotopic evidence that bicarbonate is not the direct substrate of photosynthetic O2 release is reexamined, and the new explanation of bicarbonate photolysis in photosynthetic O2 evolution is proposed.
Yanyou Wu. Is bicarbonate directly used as substrate to participate in photosynthetic oxygen evolution. Acta Geochimica 2021, 1 -9.
AMA StyleYanyou Wu. Is bicarbonate directly used as substrate to participate in photosynthetic oxygen evolution. Acta Geochimica. 2021; ():1-9.
Chicago/Turabian StyleYanyou Wu. 2021. "Is bicarbonate directly used as substrate to participate in photosynthetic oxygen evolution." Acta Geochimica , no. : 1-9.
Sulphurous acid derived from sulfur dioxide (SO2) emission leads to the pollution of irrigation water and the inhibition of plant growth. The safe concentration threshold of NaHSO3 in plants should be clarified to promote agricultural production. In this study, Orychophragmus violaceus seedlings were used as experimental materials and five NaHSO3 concentrations (i.e., 0, 1, 2, 5, 10 mmol·L−1) were simultaneously sprayed on the leaf surface of different seedlings separately. Leaf physiology responses under different concentrations were analyzed. The NaHSO3 did not promote photosynthesis in O. violaceus under the 1 and 2 mmol·L−1 treatments. It was conducive to the net photosynthetic rate (PN), photorespiration rate (Rp), chlorophyll content, actual photochemical quantum yield (YII) and photochemical quenching (qP) under the 5 mmol·L−1 treatment. However, quantum yield of regulated energy dissipation (YNPQ) and nonphotochemical quenching (NPQ) were inhibited. Under the 10 mmol·L−1 treatment, PN, chlorophyll content, YII, qP, dark respiration rate (Rd) and electron transport rate (ETR) showed significant decreases, while the photorespiration portion (Sp) significantly increased. Our results demonstrated that NaHSO3 provided a sulfur source for plant growth and interfered with the redox reaction of the plant itself, and its role as a photorespiratory inhibitor might be masked.
Zhongying Li; Yanyou Wu; Deke Xing; Kaiyan Zhang; Jinjin Xie; Rui Yu; Tian Chen; Rongrong Duan. Effects of Foliage Spraying with Sodium Bisulfite on the Photosynthesis of Orychophragmus violaceus. Horticulturae 2021, 7, 137 .
AMA StyleZhongying Li, Yanyou Wu, Deke Xing, Kaiyan Zhang, Jinjin Xie, Rui Yu, Tian Chen, Rongrong Duan. Effects of Foliage Spraying with Sodium Bisulfite on the Photosynthesis of Orychophragmus violaceus. Horticulturae. 2021; 7 (6):137.
Chicago/Turabian StyleZhongying Li; Yanyou Wu; Deke Xing; Kaiyan Zhang; Jinjin Xie; Rui Yu; Tian Chen; Rongrong Duan. 2021. "Effects of Foliage Spraying with Sodium Bisulfite on the Photosynthesis of Orychophragmus violaceus." Horticulturae 7, no. 6: 137.
Almost all life activities of plants are accompanied by electrophysiological information. Plant’s electrical parameters are considered to be the fastest response to environment. In this study, the theoretically intrinsic relationships between the clamping force and leaf resistance (R) and inductive reactance (XL) were revealed as 3-parameter exponential decay based on bioenergetics for the first time. The intrinsic resistance (IR), capacitive reactance (IXc), inductive reactance (IXL), impedance (IZ), and capacitance (IC) in plant leaves were successfully monitored. The nutrient flux per unit area (UNF), nutrient transfer rate (NTR) and nutrient transport capacity (NTC) in plants based on IR, IXc, IXL, IZ and IC were defined to reflect nutrient transport characteristics. The results indicate that IXc and IXL could be used to manifest the relative composition characteristics of cell membrane proteins, and are inversely proportional to the amount of surface and binding proteins that induce membrane Xc and XL in plant leaves, respectively. UNF, NTR or NTC exhibited good correlations with crude protein or crude ash, and accurately revealed the nutrient transport strategies of tested plants and their diversity. This study highlights that plant’s electrophysiological information could effectively manifest the composition and nutrient transport characteristics of membrane proteins in plant cells.
Cheng Zhang; Yanyou Wu; Yue Su; Haitao Li; Lei Fang; Deke Xing. Plant’s electrophysiological information manifests the composition and nutrient transport characteristics of membrane proteins. Plant Signaling & Behavior 2021, 16, 1918867 .
AMA StyleCheng Zhang, Yanyou Wu, Yue Su, Haitao Li, Lei Fang, Deke Xing. Plant’s electrophysiological information manifests the composition and nutrient transport characteristics of membrane proteins. Plant Signaling & Behavior. 2021; 16 (7):1918867.
Chicago/Turabian StyleCheng Zhang; Yanyou Wu; Yue Su; Haitao Li; Lei Fang; Deke Xing. 2021. "Plant’s electrophysiological information manifests the composition and nutrient transport characteristics of membrane proteins." Plant Signaling & Behavior 16, no. 7: 1918867.
This study investigates differential responses of Aegiceras corniculatum and Kandelia candel mangrove species, using physiological capacitance (CP), photosynthetic, and growth parameters under different salt stress and re-watering conditions. Experiment was conducted at various NaCl levels. The Results indicated that CP was significantly affected in stress phase due to the limitation of salt storage capacity of the vacuole. Although A. corniculatum has a secreting effect, the solute concentration in vacuole was significantly higher than K. candel at M and H treatment, because their volume of vacuole was lower than K. candel species. In the re-watering phase, CP values of both species increased at M-L and H-M treatments respectively. Furthermore, CP was positively correlated with net photosynthesis and stomatal conductance. This finding suggests that the concentration of solute in vacuole is an important factor controlling photosynthesis and growth parameters, and CP can better represent salt concentration in the plant leaf.
Kashif Ali Solangi; Yanyou Wu; Qian Chen; Waqar Ahmed Qureshi; Deke Xing; Mazhar Hussain Tunio; Sher Ali Shaikh. The differential responses of Aegiceras corniculatum and Kandelia candel under salt stress and re-watering phase. A study of leaf electrophysiological and growth parameters. Journal of Plant Interactions 2021, 16, 307 -320.
AMA StyleKashif Ali Solangi, Yanyou Wu, Qian Chen, Waqar Ahmed Qureshi, Deke Xing, Mazhar Hussain Tunio, Sher Ali Shaikh. The differential responses of Aegiceras corniculatum and Kandelia candel under salt stress and re-watering phase. A study of leaf electrophysiological and growth parameters. Journal of Plant Interactions. 2021; 16 (1):307-320.
Chicago/Turabian StyleKashif Ali Solangi; Yanyou Wu; Qian Chen; Waqar Ahmed Qureshi; Deke Xing; Mazhar Hussain Tunio; Sher Ali Shaikh. 2021. "The differential responses of Aegiceras corniculatum and Kandelia candel under salt stress and re-watering phase. A study of leaf electrophysiological and growth parameters." Journal of Plant Interactions 16, no. 1: 307-320.
Leaf water status is always influenced by plant growth and environment and dynamically changes over time. Rapid measurement of leaf physical characteristics helps to timely determine the plant water needs, in order to prevent inhibition of photosynthesis in plants and improve irrigation water-use efficiency (WUE) under water deficit conditions. The present study determined leaf electrophysiological and mechanical properties, water content (LWC), water potential (ΨL), carbonic anhydrase (CA) activity, net photosynthesis, and re-watering WUE (WUER) in relation to osmotic stress and following drought hardening in Orychophragmus violaceus seedlings. The study established a coupling model between gripping force and physiological impedance according to the Nernst equation, and the leaf water dissipation rate (LWDR) was defined and determined. Changes of cell stiffness and LWDR altered the intracellular water status, which affected the photosynthetic capacity and WUER. Photosynthesis was inhibited by the 40 g L−1 PEG (polyethylene glycol) treatment due to the reduction of intracellular water, and leaf cells were severely damaged at the higher, 80 g L‒1 PEG. Plants transferred from 20 to 10 g L‒1 PEG had the highest WUER. We have found that the physiological impedance provides more reliable information of plant water status compared with ΨL, which can help improve the irrigation WUE.
Deke Xing; Lu Chen; Yanyou Wu; Janusz J. Zwiazek. Leaf physiological impedance and elasticity modulus in Orychophragmus violaceus seedlings subjected to repeated osmotic stress. Scientia Horticulturae 2020, 276, 109763 .
AMA StyleDeke Xing, Lu Chen, Yanyou Wu, Janusz J. Zwiazek. Leaf physiological impedance and elasticity modulus in Orychophragmus violaceus seedlings subjected to repeated osmotic stress. Scientia Horticulturae. 2020; 276 ():109763.
Chicago/Turabian StyleDeke Xing; Lu Chen; Yanyou Wu; Janusz J. Zwiazek. 2020. "Leaf physiological impedance and elasticity modulus in Orychophragmus violaceus seedlings subjected to repeated osmotic stress." Scientia Horticulturae 276, no. : 109763.
Almost all of a plant’s life activities involve electrochemical reactions. Plant electrical parameters respond quickly to environmental changes and are closely related to physiological activities. In this study, the theoretical intrinsic relationships between clamping force and leaf impedance (Z) or capacitive reactance (Xc) and capacitance (C) were revealed as 3-parameter exponential decay and linear models based on bioenergetics, respectively, for the first time. Leaf electrical characteristics including intrinsic impedance (IZ), capacitive reactance (IXc), capacitance (IC) and specific effective thickness (d) were successfully detected using the above-mentioned relationships and were used to manifest plant metabolic activity. The intracellular water-holding capacity (IWHC), water-use efficiency (IWUE), water-holding time (IWHT) and water transfer rate (WTR) of plant leaves were defined on the basis of IZ, IXc, IC and d, and applied to reflect the intracellular water metabolism. The results demonstrated that the leaves of Broussonetia papyrifera plants grown in agricultural soil had higher IC, d, IWHC, WTR, water content values and lower IZ, IXc values than those grown in moderately rocky desertified soil. The leaf IC, d, IWHC, WTR and water content values of herbaceous plants were higher than those of woody plants. Solanum tuberosum L. had higher leaf IC, d, IWHC and WTR values, but exhibited lower IZ, IXc, IWUE and IWHT values than Capsicum annuum L. This study highlighted that a plant’s electrical parameters based on bioenergetics clearly indicate its physiological process—e.g., the intracellular water metabolism.
Cheng Zhang; Yanyou Wu; Yue Su; Deke Xing; Yi Dai; Yansheng Wu; Lei Fang. A Plant’s Electrical Parameters Indicate Its Physiological State: A Study of Intracellular Water Metabolism. Plants 2020, 9, 1256 .
AMA StyleCheng Zhang, Yanyou Wu, Yue Su, Deke Xing, Yi Dai, Yansheng Wu, Lei Fang. A Plant’s Electrical Parameters Indicate Its Physiological State: A Study of Intracellular Water Metabolism. Plants. 2020; 9 (10):1256.
Chicago/Turabian StyleCheng Zhang; Yanyou Wu; Yue Su; Deke Xing; Yi Dai; Yansheng Wu; Lei Fang. 2020. "A Plant’s Electrical Parameters Indicate Its Physiological State: A Study of Intracellular Water Metabolism." Plants 9, no. 10: 1256.
Background: Almost all life activities of plants are accompanied by electrophysiological information. Plant electrical parameters are considered to be the fastest response to environment.Results: In this study, the theoretically intrinsic relationships between the clamping force and leaf resistance (R), capacitive reactance (Xc) and inductive reactance (XL) were revealed as 3-parameter exponential decay based on bioenergetics for the first time. The intrinsic resistance (IR), intrinsic capacitive reactance (IXc) and intrinsic inductive reactance (IXL) in plant leaves were monitored via these relationships for the first time, and the nutrient transport capacity (NTC) in plant cells based on IR, IXc and IXL was first defined. The results indicate that IXc and IXL could be used to manifest the composition of surface and binding proteins in cell membrane, plant with high crude proteins and crude ash had higher NTC, and which accurately revealed the nutrient transport strategies in tested plants. Conclusions: This study highlights that plant electrophysiological information could effectively manifest the composition and nutrient transport characteristics of membrane protein in plant cells.
Cheng Zhang; Yanyou Wu; Yue Su; Deke Xing; Lei Fang. Plant Electrophysiological Information Manifests the Composition and Nutrient Transport Characteristics of Membrane Protein. 2020, 1 .
AMA StyleCheng Zhang, Yanyou Wu, Yue Su, Deke Xing, Lei Fang. Plant Electrophysiological Information Manifests the Composition and Nutrient Transport Characteristics of Membrane Protein. . 2020; ():1.
Chicago/Turabian StyleCheng Zhang; Yanyou Wu; Yue Su; Deke Xing; Lei Fang. 2020. "Plant Electrophysiological Information Manifests the Composition and Nutrient Transport Characteristics of Membrane Protein." , no. : 1.
Bioremediation is commonly conducted by microbial consortia rather than individual species in natural environments. Biodegradation of dicarboximide fungicides in brunisolic soil were significantly enhanced by two bacterial cocultures of Providencia stuartii JD or Brevundimonas naejangsanensis J3. The cocultures degraded 98.42%, 95.44%, and 96.81% of 50 mg/L dimethachlon, iprodione, and procymidone in liquid culture within 6 d respectively, whose efficiency was 1.23 and 1.26, 1.25 and 1.23, and 1.24 and 1.24 times of strains JD and J3, respectively. The cocultures could effectively degrade dimethachlon, iprodione and procymidone to simple products. Moreover, the cocultures immobilized in a charcoal-alginate-chitosan carrier obviously surpassed free cocultures in terms of degradability, stability and reusability. In the field brunisolic soils treated by immobilized cocultures, 96.74% of 20.25 kg a.i./ha dimethachlon, 95.02% of 7.50 kg a.i./ha iprodione and 96.27% of 7.50 kg a.i./ha procymidone were degraded after 7 d, respectively. Moreover, the lower half-lifes (1.53, 1.59 and 1.57 d) by immobilized cocultures were observed, as compared to free cocultures (3.60, 4.03 and 3.92 d) and natural dissipation (21.33, 20.51 and 20.09 d). This study highlights strains JD and J3 have significant synergetic degradation advantages in rapid bioremediation of dicarboximide fungicide contamination sites.
Cheng Zhang; Xiaomao Wu; Yanyou Wu; Jiaohong Li; Huaming An; Tao Zhang. Enhancement of dicarboximide fungicide degradation by two bacterial cocultures of Providencia stuartii JD and Brevundimonas naejangsanensis J3. Journal of Hazardous Materials 2020, 403, 123888 .
AMA StyleCheng Zhang, Xiaomao Wu, Yanyou Wu, Jiaohong Li, Huaming An, Tao Zhang. Enhancement of dicarboximide fungicide degradation by two bacterial cocultures of Providencia stuartii JD and Brevundimonas naejangsanensis J3. Journal of Hazardous Materials. 2020; 403 ():123888.
Chicago/Turabian StyleCheng Zhang; Xiaomao Wu; Yanyou Wu; Jiaohong Li; Huaming An; Tao Zhang. 2020. "Enhancement of dicarboximide fungicide degradation by two bacterial cocultures of Providencia stuartii JD and Brevundimonas naejangsanensis J3." Journal of Hazardous Materials 403, no. : 123888.
Background: Intracellular water in plant leaves is paramount importance to physiological and biochemical processes. Water changes trigger the rapid response of plant electrophysiological information. In this study, plant electrophysiological information was firstly used to rapid monitor intracellular water information in plant leaves. Results: Based on the thermodynamics laws, the fitting equations between plant electrophysiological parameters and clamping force were innovative established. Subsequently, leaf intrinsic electrophysiological parameters, intracellular water-holding capacity (IWHC), water use efficiency (IWUE), water-holding time (IWHT) and water transfer rate (WTR), were firstly developed and applied. The results show that the leaves of Broussonetia papyrifera in the cultivated soil had higher IWHC, WTR and water content than in the moderate rocky desertification soil. The leaf IWHC, WTR and water content of the herbaceous plants were higher than that of the woody plants. Solanum tuberosum had higher leaf IWHC, WTR and lower IWUE, IWHT, as compared to Capsicum annuum. Conclusions: These indexes strongly reveal the life phenomenon of the intracellular water metabolism in plant leaves. This study highlights that the online electrophysiological parameters promise a new sight for intracellular water metabolism in plants.
C. Zhang; Yanyou Wu; Y. Su; D.K. Xing; Y. Dai; L. Fang. New sight: rapid monitor of intracellular water information in plant leaves based on electrophysiological parameters. 2020, 1 .
AMA StyleC. Zhang, Yanyou Wu, Y. Su, D.K. Xing, Y. Dai, L. Fang. New sight: rapid monitor of intracellular water information in plant leaves based on electrophysiological parameters. . 2020; ():1.
Chicago/Turabian StyleC. Zhang; Yanyou Wu; Y. Su; D.K. Xing; Y. Dai; L. Fang. 2020. "New sight: rapid monitor of intracellular water information in plant leaves based on electrophysiological parameters." , no. : 1.
Soft rot caused by Botryosphaeria dothidea and Phomopsis sp. is a critical disease in kiwifruit. In order to efficiently control soft rot, a 28.6% chitosan composite film (CCF) containing chitosan, dextrin, ferulic acid, calcium, and auxiliaries was successfully developed. The results showed that CCF had a strong inhibitory effect on mycelia growth of B. dothidea and Phomopsis sp., with mycelial EC50 values of 68.11 and 50.34 mg L−1, respectively. The concentration of 0.71–1.42 g L−1 CCF had noticeably preventive and curative effects against soft rot. The spray of CCF before pathogen infection effectively reduced the incidence of soft rot, remarkably increased the content of resistance compounds, and activated the activity of defense enzymes. Moreover, it notably enhanced the yield and quality and prolonged the shelf life of kiwifruit. Therefore, the excellent control effects of CCF against soft rot might be associated with its film-forming property and antifungal activity, which prevent infection and induce plant defense mechanisms. The concentration of 0.71–1.42 g L−1 CCF was optimal for the field application before the onset of disease symptoms in plants with B. dothidea and Phomopsis sp.
Cheng Zhang; Youhua Long; Jiaohong Li; Ming Li; Deke Xing; Huaming An; Xiaomao Wu; Yanyou Wu. A Chitosan Composite Film Sprayed before Pathogen Infection Effectively Controls Postharvest Soft Rot in Kiwifruit. Agronomy 2020, 10, 265 .
AMA StyleCheng Zhang, Youhua Long, Jiaohong Li, Ming Li, Deke Xing, Huaming An, Xiaomao Wu, Yanyou Wu. A Chitosan Composite Film Sprayed before Pathogen Infection Effectively Controls Postharvest Soft Rot in Kiwifruit. Agronomy. 2020; 10 (2):265.
Chicago/Turabian StyleCheng Zhang; Youhua Long; Jiaohong Li; Ming Li; Deke Xing; Huaming An; Xiaomao Wu; Yanyou Wu. 2020. "A Chitosan Composite Film Sprayed before Pathogen Infection Effectively Controls Postharvest Soft Rot in Kiwifruit." Agronomy 10, no. 2: 265.
Soil salinization is a serious environmental issue that significantly influences crop yield and soil fertility, especially in coastal areas. Numerous studies have been conducted on the salinity status in Pakistan. Information about the geospatial and temporal distribution of salinity in the Sujawal district is still lacking. The present study examines the soil salinity status and the impact of seawater intrusion in the entire district from 1990 to 2017 using field and remote sensing (RS) data. In addition, 210 soil samples at different depths (0–20, 20–40, and 40–60 cm) were collected from randomly selected locations for lab measurements of physiochemical properties. The results showed that the soil texture classes were mainly fine to medium particles. The samples collected at the 0–20 cm depth were mostly dominated by three textural classes of soil: clay at 19.5%, clay loam at 25.6%, and loam at 32.9%. The electrical conductivity (EC) of 65.7% soil samples collected from the top layer exceeded the normal range. The quantitative results indicated that the exchangeable sodium percentage (ESP) ranged between 1.38 and 64.58, and 72.2% of the top layer soil samples had ESP >15, while 81.5% of soil samples were in the normal range of soil pH. Furthermore, the results indicated that the vegetation decreased by 8.6% from 1990 to 2017, while barren land and water bodies increased significantly, by approximately 4.4% and 4.2%, respectively. The extreme and high salinity classes were characterized by high contents of soluble salt on the surface in the Jati and Shah Bandar subdistricts. In addition, the soil EC values at the 0–20 cm depth were significantly correlated with the salinity index (S1). Therefore, it was concluded that more than 50% of the top layer of soil was affected by salinity due to seawater intrusion, low rainfall, climate change, and erratic river flow. It is suggested that remote sensing (RS) data are more suitable for the detection of the soil salinity status of a region and impose a lower cost compared to other conventional approaches. However, this study could provide significant knowledge to land managers, policymakers, and government officials to allow them to take action to implement salinity control measures in the study area.
Kashif Ali Solangi; Altaf Ali Siyal; Yanyou Wu; Bilawal Abbasi; Farheen Solangi; Imran Ali Lakhiar; Guiyao Zhou. An Assessment of the Spatial and Temporal Distribution of Soil Salinity in Combination with Field and Satellite Data: A Case Study in Sujawal District. Agronomy 2019, 9, 869 .
AMA StyleKashif Ali Solangi, Altaf Ali Siyal, Yanyou Wu, Bilawal Abbasi, Farheen Solangi, Imran Ali Lakhiar, Guiyao Zhou. An Assessment of the Spatial and Temporal Distribution of Soil Salinity in Combination with Field and Satellite Data: A Case Study in Sujawal District. Agronomy. 2019; 9 (12):869.
Chicago/Turabian StyleKashif Ali Solangi; Altaf Ali Siyal; Yanyou Wu; Bilawal Abbasi; Farheen Solangi; Imran Ali Lakhiar; Guiyao Zhou. 2019. "An Assessment of the Spatial and Temporal Distribution of Soil Salinity in Combination with Field and Satellite Data: A Case Study in Sujawal District." Agronomy 9, no. 12: 869.
Dimethachlon is a hazardous xenobiotic which poses a potential risk on the ecosystem and human health after foliar spray for mitigating fungal diseases of crops. A novel dimethachlon-degrading strain was isolated and identified as Brevundimonas naejangsanensis J3. Free cells and enzymes of this strain could rapidly eliminate 75 mg/L dimethachlon in liquid medium, especially the latter (>90% of degradation efficiency). Strain J3 completely metabolized dimethachlon by an ideally transformed pathway. Immobilization cells and enzymes exhibited better stability and adaptability for the repeated use, as compared with free cells and enzymes. In laboratory, 68.03 and 65.13%, or 82.67 and 95.41% of dimethachlon were eliminated from non-sterile soils by free or immobilized cells and enzymes within 7 d, respectively. Under the field condition, 95.78 and 98.01% of 20.250 kg a.i./ha dimethachlon wettable powder from soils were degraded by immobilized cells and enzymes in 9 d respectively, which were significant higher than the degradation efficiencies of free cells and enzymes (78.81 and 67.25%). This study highlights immobilized cells and enzymes from strain J3 can be applicable for bioremediating dimethachlon-contaminated soils.
Cheng Zhang; Jiaohong Li; Huaming An; Xiaomao Wu; Yanyou Wu; Youhua Long; Rongyu Li; Deke Xing. Enhanced elimination of dimethachlon from soils using a novel strain Brevundimonas naejangsanensis J3. Journal of Environmental Management 2019, 255, 109848 .
AMA StyleCheng Zhang, Jiaohong Li, Huaming An, Xiaomao Wu, Yanyou Wu, Youhua Long, Rongyu Li, Deke Xing. Enhanced elimination of dimethachlon from soils using a novel strain Brevundimonas naejangsanensis J3. Journal of Environmental Management. 2019; 255 ():109848.
Chicago/Turabian StyleCheng Zhang; Jiaohong Li; Huaming An; Xiaomao Wu; Yanyou Wu; Youhua Long; Rongyu Li; Deke Xing. 2019. "Enhanced elimination of dimethachlon from soils using a novel strain Brevundimonas naejangsanensis J3." Journal of Environmental Management 255, no. : 109848.
Deke Xing; Xiaole Chen; Yanyou Wu; Xiaojian Xu; Qian Chen; Lin Li; Chuan Zhang. Rapid prediction of the re-watering time point of Orychophragmus violaceus L. based on the online monitoring of electrophysiological indexes. Scientia Horticulturae 2019, 256, 1 .
AMA StyleDeke Xing, Xiaole Chen, Yanyou Wu, Xiaojian Xu, Qian Chen, Lin Li, Chuan Zhang. Rapid prediction of the re-watering time point of Orychophragmus violaceus L. based on the online monitoring of electrophysiological indexes. Scientia Horticulturae. 2019; 256 ():1.
Chicago/Turabian StyleDeke Xing; Xiaole Chen; Yanyou Wu; Xiaojian Xu; Qian Chen; Lin Li; Chuan Zhang. 2019. "Rapid prediction of the re-watering time point of Orychophragmus violaceus L. based on the online monitoring of electrophysiological indexes." Scientia Horticulturae 256, no. : 1.
The primary sources of nitrogen for plants have been suggested to be nitrate (NO3−) and ammonium (NH4+). However, when both nitrate and ammonium are simultaneously available to plants, it is very difficult to differentially quantify NO3−/NH4+ utilization in culture media or soil. Consequently, the contribution of NO3−/NH4+ to total inorganic nitrogen assimilation cannot be determined. We developed a method called the bidirectional stable nitrogen isotope tracer to differentially quantify the nitrate and ammonium utilization by Orychophragmus violaceus (Ov) and Brassica napus (Bn) plantlets in vitro. The utilization efficiency of nitrate was markedly lower than the utilization efficiency of ammonium for plantlets of both Ov and Bn. In both Ov and Bn, the proportion of NO3−/NH4+ utilization did not show a linear relationship with inorganic nitrogen supply. The Ov plantlets assimilated more nitrate than the Bn plantlets at the lowest inorganic nitrogen concentration. Quantifying the utilization of nitrate and ammonium can reveal the differences in nitrate and ammonium assimilation among plants at different inorganic nitrogen supply levels and provide an alternate way to conveniently optimize the supply of inorganic nitrogen in culture media.
Kaiyan Zhang; Yanyou Wu; Hongtao Hang. Differential contributions of NO3−/NH4+ to nitrogen use in response to a variable inorganic nitrogen supply in plantlets of two Brassicaceae species in vitro. Plant Methods 2019, 15, 1 -12.
AMA StyleKaiyan Zhang, Yanyou Wu, Hongtao Hang. Differential contributions of NO3−/NH4+ to nitrogen use in response to a variable inorganic nitrogen supply in plantlets of two Brassicaceae species in vitro. Plant Methods. 2019; 15 (1):1-12.
Chicago/Turabian StyleKaiyan Zhang; Yanyou Wu; Hongtao Hang. 2019. "Differential contributions of NO3−/NH4+ to nitrogen use in response to a variable inorganic nitrogen supply in plantlets of two Brassicaceae species in vitro." Plant Methods 15, no. 1: 1-12.
Leaf water status determination based on mechanical and electrophysiological properties helps determine the inherent as well as instantaneous leaf dehydration tolerance synchronously. The leaf water potential (ΨL), physiological capacitance (CP) and gripping force (F) were determined with leaves of Broussonetia papyrifera (L.) Vent. and Morus alba L. Real-time leaf stiffness (LCSrt) and maximum leaf stiffness (LCSmax) were investigated by compressing a leaf with external gripping force. Results indicated that LT displayed good correlation with F. Compared to M. alba, a better instantaneous dehydration tolerance or pressure resistance in B. papyrifera was correlated to its persistent stronger LCSrt or LCSmax, respectively. B. papyrifera showed better flexibility and tolerance to wider range of pressure than M. alba. The higher leaf mechanical strength helped to maintain a higher outward pulling force of cell walls; thus, the subsequent negative pressure effectively inhibited cellular water loss. B. papyrifera exhibited better drought resistance than M. alba.
Deke Xing; Xiaole Chen; Yanyou Wu; Qian Chen; Lin Li; Weiguo Fu; Yu Shu. Leaf stiffness of two Moraceae species based on leaf tensity determined by compressing different external gripping forces under dehydration stress. Journal of Plant Interactions 2019, 14, 610 -616.
AMA StyleDeke Xing, Xiaole Chen, Yanyou Wu, Qian Chen, Lin Li, Weiguo Fu, Yu Shu. Leaf stiffness of two Moraceae species based on leaf tensity determined by compressing different external gripping forces under dehydration stress. Journal of Plant Interactions. 2019; 14 (1):610-616.
Chicago/Turabian StyleDeke Xing; Xiaole Chen; Yanyou Wu; Qian Chen; Lin Li; Weiguo Fu; Yu Shu. 2019. "Leaf stiffness of two Moraceae species based on leaf tensity determined by compressing different external gripping forces under dehydration stress." Journal of Plant Interactions 14, no. 1: 610-616.
The effect of bicarbonate (HCO3−) on the growth and development of plants varies by species. To better understand inorganic carbon and nitrogen assimilation changes of karst-adaptable plants under different HCO3− treatments, we conducted experiments on seedlings and in vitro plantlets of Orychophragmus violaceus (Ov). We found that the vital photosynthesis potential (as measured by net photosynthetic rate, actual photochemical efficiency of photosystem-II, photochemical quenching coefficient, and the instantaneous carbon isotope ratio of 3-phosphoglycerate) was consistent under different HCO3− treatments of Ov. Bicarbonate’s lack of effect on carbon assimilation of Ov may be related to carbonic anhydrase in Ov converting HCO3− to H2O and CO2. In this way, Ov could prevent HCO3− ion toxicity and high pH from harming its growth and development under HCO3− stress. This study also found that high HCO3− concentrations could promote nitrogen assimilation and utilization of Ov through changes in related indexes (foliar nitrogen isotope fractionation ratio, stable nitrogen isotope assimilation ratio, foliar stable nitrogen isotope fractionation, nitrate nitrogen utilization efficiency, and nitrate utilization share) under different HCO3− treatments. Bicarbonate has different effects on photosynthesis and on inorganic nitrogen assimilation of Ov, which may be connected to photosynthesis providing electrons for nitrate/nitrite reduction through the photosynthetic chain.
Ye Lu; Yanyou Wu; Kaiyan Zhang. Does bicarbonate affect the nitrate utilization and photosynthesis of Orychophragmus violaceus? Acta Geochimica 2018, 37, 875 -885.
AMA StyleYe Lu, Yanyou Wu, Kaiyan Zhang. Does bicarbonate affect the nitrate utilization and photosynthesis of Orychophragmus violaceus? Acta Geochimica. 2018; 37 (6):875-885.
Chicago/Turabian StyleYe Lu; Yanyou Wu; Kaiyan Zhang. 2018. "Does bicarbonate affect the nitrate utilization and photosynthesis of Orychophragmus violaceus?" Acta Geochimica 37, no. 6: 875-885.