The Experts below are selected from a list of 38718 Experts worldwide ranked by ideXlab platform
Shuqing An - One of the best experts on this subject based on the ideXlab platform.
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response of the Soil Microbial Community composition and biomass to a short term spartina alterniflora invasion in a coastal wetland of eastern china
Plant and Soil, 2016Co-Authors: Wen Yang, Fan Jiang, Xin Leng, Xiaoli Cheng, Shuqing AnAbstract:Aims Plant invasion has been reported to alter ecosystem carbon (C) and nitrogen (N) cycling processes and pools. The mechanisms involved in how plant invasion affects the Soil Microbial Community—the primary mediator of Soil C and N cycling—remain poorly understood. The objective of this study was therefore to evaluate the effect of plant invasion on the Soil Microbial Community in a coastal wetland of eastern China.
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spartina alterniflora invasion alters Soil Microbial Community composition and Microbial respiration following invasion chronosequence in a coastal wetland of china
Scientific Reports, 2016Co-Authors: Wen Yang, Xin Leng, Xiaoli Cheng, Nasreen Jeelani, Shuqing AnAbstract:The role of exotic plants in regulating Soil Microbial Community structure and activity following invasion chronosequence remains unclear. We investigated Soil Microbial Community structure and Microbial respiration following Spartina alterniflora invasion in a chronosequence of 6-, 10-, 17-, and 20-year-old by comparing with bare flat in a coastal wetland of China. S. alterniflora invasion significantly increased Soil moisture and salinity, the concentrations of Soil water-soluble organic carbon and Microbial biomass carbon (MBC), the quantities of total and various types of phospholipid fatty acids (PLFAs), the fungal:bacterial PLFAs ratio and cumulative Microbial respiration compared with bare flat. The highest MBC, gram-negative bacterial and saturated straight-chain PLFAs were found in 10-year-old S. alterniflora Soil, while the greatest total PLFAs, bacterial and gram-positive bacterial PLFAs were found in 10- and 17-year-old S. alterniflora Soils. The monounsaturated:branched PLFAs ratio declined, and cumulative Microbial respiration on a per-unit-PLFAs increased following S. alterniflora invasion in the chronosequence. Our results suggest that S. alterniflora invasion significantly increased the biomass of Soil various Microbial groups and Microbial respiration compared to bare flat Soil by increasing Soil available substrate, and modifying Soil physiochemical properties. Soil Microbial Community reached the most enriched condition in the 10-year-old S. alterniflora Community.
Petra Marschner - One of the best experts on this subject based on the ideXlab platform.
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the effects of stubble retention and nitrogen application on Soil Microbial Community structure and functional gene abundance under irrigated maize
FEMS Microbiology Ecology, 2007Co-Authors: Steven A Wakelin, Petra Marschner, Matthew J Colloff, Paul R Harvey, Adrienne L Gregg, Stephen L RogersAbstract:The effects of agronomic management practices on the Soil Microbial Community were investigated in a maize production system in New South Wales, Australia. The site has been intensively studied to measure the impact of stubble management and N-fertilizer application on greenhouse gas emissions (CO2 and N2O), N-cycling, pathology, Soil structure and yield. As all of these endpoints can be regulated by Microbial processes, the microbiology of the system was examined. Soil samples were taken after a winter fallow period and the diversity of the bacterial and fungal communities was measured using PCR-denaturing gradient gel electrophoresis. Stubble and N shifted the structure of bacterial and fungal communities with the primary driver being stubble addition on the fungal Community structure ( P <0.05 for all effects). Changes in C, N (total and NO3), K and Na, were correlated ( P <0.05) with variation in the Microbial Community structure. Quantitative PCR showed that nif H (nitrogen fixation) and nap A (denitrification) gene abundance increased upon stubble retention, whereas amo A gene numbers were increased by N addition. These results showed that the management of both stubble and N have significant and long-term impacts on the size and structure of the Soil Microbial Community at phylogenetic and functional levels.
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the veterinary antibiotic oxytetracycline and cu influence functional diversity of the Soil Microbial Community
Environmental Pollution, 2006Co-Authors: Weidong Kong, Yongguan Zhu, Petra MarschnerAbstract:There are increasing concerns over the effects of veterinary antibiotics and heavy metals in agricultural Soils. The widely used veterinary antibiotic oxytetracycline (OTC), Cu and their combination on Soil Microbial Community function were assessed with the Biolog method. The Microbial Community was extracted from the Soil and exposed to a 0.85% sodium chloride solution containing OTC (0, 1, 5, 11, 43, 109 and 217 μM), or Cu (0, 10, 20, 100 and 300 μM), or combination of the two pollutants (OTC 0, 5, 11 μM and Cu 0, 20 μM). Functional diversity, evenness, average well color development (AWCD) and substrate utilization decreased significantly with increasing concentrations of OTC or Cu (p < 0.005). The critical concentrations were 11 μM for OTC and 20 μM for Cu. The combination of OTC and Cu significantly decreased Shannon's diversity, evenness and utilization of carbohydrates and carboxylic acids compared to individual one of the contaminants. The antibiotic OTC and Cu had significant negative effects on Soil Microbial Community function, particularly when both pollutants were present.
Wen Yang - One of the best experts on this subject based on the ideXlab platform.
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response of the Soil Microbial Community composition and biomass to a short term spartina alterniflora invasion in a coastal wetland of eastern china
Plant and Soil, 2016Co-Authors: Wen Yang, Fan Jiang, Xin Leng, Xiaoli Cheng, Shuqing AnAbstract:Aims Plant invasion has been reported to alter ecosystem carbon (C) and nitrogen (N) cycling processes and pools. The mechanisms involved in how plant invasion affects the Soil Microbial Community—the primary mediator of Soil C and N cycling—remain poorly understood. The objective of this study was therefore to evaluate the effect of plant invasion on the Soil Microbial Community in a coastal wetland of eastern China.
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spartina alterniflora invasion alters Soil Microbial Community composition and Microbial respiration following invasion chronosequence in a coastal wetland of china
Scientific Reports, 2016Co-Authors: Wen Yang, Xin Leng, Xiaoli Cheng, Nasreen Jeelani, Shuqing AnAbstract:The role of exotic plants in regulating Soil Microbial Community structure and activity following invasion chronosequence remains unclear. We investigated Soil Microbial Community structure and Microbial respiration following Spartina alterniflora invasion in a chronosequence of 6-, 10-, 17-, and 20-year-old by comparing with bare flat in a coastal wetland of China. S. alterniflora invasion significantly increased Soil moisture and salinity, the concentrations of Soil water-soluble organic carbon and Microbial biomass carbon (MBC), the quantities of total and various types of phospholipid fatty acids (PLFAs), the fungal:bacterial PLFAs ratio and cumulative Microbial respiration compared with bare flat. The highest MBC, gram-negative bacterial and saturated straight-chain PLFAs were found in 10-year-old S. alterniflora Soil, while the greatest total PLFAs, bacterial and gram-positive bacterial PLFAs were found in 10- and 17-year-old S. alterniflora Soils. The monounsaturated:branched PLFAs ratio declined, and cumulative Microbial respiration on a per-unit-PLFAs increased following S. alterniflora invasion in the chronosequence. Our results suggest that S. alterniflora invasion significantly increased the biomass of Soil various Microbial groups and Microbial respiration compared to bare flat Soil by increasing Soil available substrate, and modifying Soil physiochemical properties. Soil Microbial Community reached the most enriched condition in the 10-year-old S. alterniflora Community.
Xin Leng - One of the best experts on this subject based on the ideXlab platform.
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response of the Soil Microbial Community composition and biomass to a short term spartina alterniflora invasion in a coastal wetland of eastern china
Plant and Soil, 2016Co-Authors: Wen Yang, Fan Jiang, Xin Leng, Xiaoli Cheng, Shuqing AnAbstract:Aims Plant invasion has been reported to alter ecosystem carbon (C) and nitrogen (N) cycling processes and pools. The mechanisms involved in how plant invasion affects the Soil Microbial Community—the primary mediator of Soil C and N cycling—remain poorly understood. The objective of this study was therefore to evaluate the effect of plant invasion on the Soil Microbial Community in a coastal wetland of eastern China.
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spartina alterniflora invasion alters Soil Microbial Community composition and Microbial respiration following invasion chronosequence in a coastal wetland of china
Scientific Reports, 2016Co-Authors: Wen Yang, Xin Leng, Xiaoli Cheng, Nasreen Jeelani, Shuqing AnAbstract:The role of exotic plants in regulating Soil Microbial Community structure and activity following invasion chronosequence remains unclear. We investigated Soil Microbial Community structure and Microbial respiration following Spartina alterniflora invasion in a chronosequence of 6-, 10-, 17-, and 20-year-old by comparing with bare flat in a coastal wetland of China. S. alterniflora invasion significantly increased Soil moisture and salinity, the concentrations of Soil water-soluble organic carbon and Microbial biomass carbon (MBC), the quantities of total and various types of phospholipid fatty acids (PLFAs), the fungal:bacterial PLFAs ratio and cumulative Microbial respiration compared with bare flat. The highest MBC, gram-negative bacterial and saturated straight-chain PLFAs were found in 10-year-old S. alterniflora Soil, while the greatest total PLFAs, bacterial and gram-positive bacterial PLFAs were found in 10- and 17-year-old S. alterniflora Soils. The monounsaturated:branched PLFAs ratio declined, and cumulative Microbial respiration on a per-unit-PLFAs increased following S. alterniflora invasion in the chronosequence. Our results suggest that S. alterniflora invasion significantly increased the biomass of Soil various Microbial groups and Microbial respiration compared to bare flat Soil by increasing Soil available substrate, and modifying Soil physiochemical properties. Soil Microbial Community reached the most enriched condition in the 10-year-old S. alterniflora Community.
Xiaoli Cheng - One of the best experts on this subject based on the ideXlab platform.
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response of the Soil Microbial Community composition and biomass to a short term spartina alterniflora invasion in a coastal wetland of eastern china
Plant and Soil, 2016Co-Authors: Wen Yang, Fan Jiang, Xin Leng, Xiaoli Cheng, Shuqing AnAbstract:Aims Plant invasion has been reported to alter ecosystem carbon (C) and nitrogen (N) cycling processes and pools. The mechanisms involved in how plant invasion affects the Soil Microbial Community—the primary mediator of Soil C and N cycling—remain poorly understood. The objective of this study was therefore to evaluate the effect of plant invasion on the Soil Microbial Community in a coastal wetland of eastern China.
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spartina alterniflora invasion alters Soil Microbial Community composition and Microbial respiration following invasion chronosequence in a coastal wetland of china
Scientific Reports, 2016Co-Authors: Wen Yang, Xin Leng, Xiaoli Cheng, Nasreen Jeelani, Shuqing AnAbstract:The role of exotic plants in regulating Soil Microbial Community structure and activity following invasion chronosequence remains unclear. We investigated Soil Microbial Community structure and Microbial respiration following Spartina alterniflora invasion in a chronosequence of 6-, 10-, 17-, and 20-year-old by comparing with bare flat in a coastal wetland of China. S. alterniflora invasion significantly increased Soil moisture and salinity, the concentrations of Soil water-soluble organic carbon and Microbial biomass carbon (MBC), the quantities of total and various types of phospholipid fatty acids (PLFAs), the fungal:bacterial PLFAs ratio and cumulative Microbial respiration compared with bare flat. The highest MBC, gram-negative bacterial and saturated straight-chain PLFAs were found in 10-year-old S. alterniflora Soil, while the greatest total PLFAs, bacterial and gram-positive bacterial PLFAs were found in 10- and 17-year-old S. alterniflora Soils. The monounsaturated:branched PLFAs ratio declined, and cumulative Microbial respiration on a per-unit-PLFAs increased following S. alterniflora invasion in the chronosequence. Our results suggest that S. alterniflora invasion significantly increased the biomass of Soil various Microbial groups and Microbial respiration compared to bare flat Soil by increasing Soil available substrate, and modifying Soil physiochemical properties. Soil Microbial Community reached the most enriched condition in the 10-year-old S. alterniflora Community.
