Results 131 to 140 of about 613 (166)

Ecoenzymatic stoichiometry and microbial nutrient limitation during secondary succession of natural grassland on the Loess Plateau, China

Soil and Tillage Research, 2020
Abstract Soil microbial metabolism is vital for nutrient cycling and ecosystem stability. To quantify microbial metabolism and nutrient limitation during plant secondary succession, we measured soil physicochemical properties, microbial biomass, and four enzyme activities (β-1,4-glucosidase (BG), β-1,4-N-acetylglucosaminidase (NAG), L-leucine ...
Sha Xue
exaly   +2 more sources

Ecoenzymatic stoichiometry reveals that increasing altitude exacerbates soil microbial phosphorus limitation in alpine grassland ecosystems in Xinjiang

Environmental Research
Ecoenzymatic stoichiometry is an essential method for predicting material cycling, nutrient limitations, and balance within ecosystems, provides new insights into microbial metabolic mechanisms. However, the status and drivers of soil microbial nutrient limitation in alpine grasslands remain unclear.
Wen, Cao, Yudong, Chen, Lamei, Jiang, Qiong, Wu, Menghao, Zhu, Yuchen, Wang, Wenjing, Li, Guanghui, Lv   +7 more
exaly   +3 more sources

Biochar-Associated Free Radicals Reduce Soil Bacterial Diversity: New Insight into Ecoenzymatic Stoichiometry

Environmental Science & Technology, 2023
The toxicity of environmentally persistent free radicals (EPFRs), often generated during biochar production, on soil bacteria is still not truly reflected when considering the conditions in real soil. Herein, the influence of free radicals within biochar on soil bacteria was investigated from the perspectives of enzyme activity, community structure ...
Huiqiang Yang, Na Chen, Zhiqiang Wang, Jinbo Liu, Jianjun Qin, Kecheng Zhu, Hanzhong Jia   +6 more
openaire   +2 more sources

Ecoenzymatic Stoichiometry and Ecological Theory

Annual Review of Ecology, Evolution, and Systematics, 2012
The net primary production of the biosphere is consumed largely by microorganisms, whose metabolism creates the trophic base for detrital foodwebs, drives element cycles, and mediates atmospheric composition. Biogeochemical constraints on microbial catabolism, relative to primary production, create reserves of detrital organic carbon in soils and ...
Robert L. Sinsabaugh, Jennifer J. Follstad Shah   +1 more
openaire   +1 more source

Soil ecoenzymatic stoichiometry reveals microbial phosphorus limitation after vegetation restoration on the Loess Plateau, China

Science of The Total Environment, 2022
Exploring the limitations of soil microbial nutrient metabolism would help to understand the adaptability and response mechanisms of soil microbes in semi-arid ecosystems. Soil ecoenzymatic stoichiometry is conducive to quantifying the nutrient limitations of microorganisms.
Miaoping, Xu, Wenjie, Li, Jiayi, Wang, Yufan, Zhu, Yongzhong, Feng, Gaihe, Yang, Wei, Zhang, Xinhui, Han   +7 more
openaire   +2 more sources

Ecoenzymatic stoichiometry of microbial nutrient acquisition in tropical soils

Biogeochemistry, 2013
The relative activities of soil enzymes involved in mineralizing organic carbon (C), nitrogen (N), and phosphorus (P) reveal stoichiometric and energetic constraints on microbial biomass growth. Although tropical forests and grasslands are a major component of the global C cycle, the effects of soil nutrient availability on microbial activity and C ...
Waring, Bonnie G., Weintraub, S R, Sinsabaugh, R L   +2 more
openaire   +2 more sources

Ecoenzymatic stoichiometry of microbial organic nutrient acquisition in soil and sediment

Nature, 2009
Biota can be described in terms of elemental composition, expressed as an atomic ratio of carbon:nitrogen:phosphorus (refs 1-3). The elemental stoichiometry of microoorganisms is fundamental for understanding the production dynamics and biogeochemical cycles of ecosystems because microbial biomass is the trophic base of detrital food webs. Here we show
Robert L, Sinsabaugh, Brian H, Hill, Jennifer J, Follstad Shah   +2 more
openaire   +2 more sources

Ecoenzymatic Stoichiometry in Relation to Productivity for Freshwater Biofilm and Plankton Communities

Microbial Ecology, 2010
The degradation of detrital organic matter and assimilation of carbon (C), nitrogen (N), and phosphorus (P) by heterotrophic microbial communities is mediated by enzymes released into the environment (ecoenzymes). For the attached microbial communities of soils and freshwater sediments, the activities of β-glucosidase, β-N-acetylglucosaminidase ...
Robert L, Sinsabaugh, David J, Van Horn, Jennifer J Follstad, Shah, Stuart, Findlay   +3 more
openaire   +2 more sources

Ecoenzymatic stoichiometry of stream sediments with comparison to terrestrial soils

Biogeochemistry, 2011
The kinetics and elemental composition of cellular units that mediate production and respiration are the basis for the metabolic and stoichiometric theories of ecological organization. This theoretical framework extends to the activities of microbial enzymes released into the environment (ecoenzymes) that mediate the release of assimilable substrate ...
Robert L. Sinsabaugh, Jennifer J. Follstad Shah, Brian H. Hill, Colleen M. Elonen   +3 more
openaire   +1 more source

Microbial Carbon Use Efficiency in Coastal Soils Along a Salinity Gradient Revealed by Ecoenzymatic Stoichiometry

Journal of Geophysical Research: Biogeosciences, 2022
AbstractSoil salinity affects the microbial carbon use efficiency (CUE) that in turn regulates soil‐atmosphere gas exchange and soil C sequestration. So far, little is known about CUE in salt‐affected soils. Hereby, CUE across coastal soils with electric conductivity (EC) ranging from 0.14 dS m−1 to 13.65 dS m−1 was investigated using stoichiometric ...
Y. Dong, R. R. Chen, E. Petropoulos, T. Y. Yao, B. Q. Yu, X. G. Lin, Y. Z. Feng   +6 more
openaire   +2 more sources