Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14281 |
Catalytic power of enzymes decreases with temperature: New insights for understanding soil C cycling and microbial ecology under warming | |
Alvarez, Gael1; Shahzad, Tanvir2; Andanson, Laurence1; Bahn, Michael3; Wallenstein, Matthew D.4,5; Fontaine, Sebastien1 | |
2018-09-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:9页码:4238-4250 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Pakistan; Austria; USA |
英文摘要 | Most current models of soil C dynamics predict that climate warming will accelerate soil C mineralization, resulting in a long-term CO2 release and positive feedback to global warming. However, ecosystem warming experiments show that CO2 loss from warmed soils declines to control levels within a few years. Here, we explore the temperature dependence of enzymatic conversion of polymerized soil organic C (SOC) into assimilable compounds, which is presumed the rate-limiting step of SOC mineralization. Combining literature review, modelling and enzyme assays, we studied the effect of temperature on activity of enzymes considering their thermal inactivation and catalytic activity. We defined the catalytic power of enzymes (E-power) as the cumulative amount of degraded substrate by one unit of enzyme until its complete inactivation. We show a universal pattern of enzyme's thermodynamic properties: activation energy of catalytic activity (EA(cat)) |
英文关键词 | enzymatic activity enzyme denaturation enzyme trait SOC decomposition under warming temperature sensitivity |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000441746900029 |
WOS关键词 | CARBON-USE EFFICIENCY ; ORGANIC-MATTER DECOMPOSITION ; THERMAL INACTIVATION ; SEASONAL-VARIATION ; ASPERGILLUS-NIGER ; CURRENT KNOWLEDGE ; YEAST INVERTASE ; KINETICS ; RESPIRATION ; SENSITIVITY |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/16674 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.INRA, VetAgro Sup, UMR Ecosyst Prairial, Clermont Ferrand, France; 2.Univ Faisalabad, Govt Coll, Dept Environm Sci & Engn, Faisalabad, Pakistan; 3.Univ Innsbruck, Inst Ecol, Innsbruck, Austria; 4.Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80523 USA; 5.Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA |
推荐引用方式 GB/T 7714 | Alvarez, Gael,Shahzad, Tanvir,Andanson, Laurence,et al. Catalytic power of enzymes decreases with temperature: New insights for understanding soil C cycling and microbial ecology under warming[J]. GLOBAL CHANGE BIOLOGY,2018,24(9):4238-4250. |
APA | Alvarez, Gael,Shahzad, Tanvir,Andanson, Laurence,Bahn, Michael,Wallenstein, Matthew D.,&Fontaine, Sebastien.(2018).Catalytic power of enzymes decreases with temperature: New insights for understanding soil C cycling and microbial ecology under warming.GLOBAL CHANGE BIOLOGY,24(9),4238-4250. |
MLA | Alvarez, Gael,et al."Catalytic power of enzymes decreases with temperature: New insights for understanding soil C cycling and microbial ecology under warming".GLOBAL CHANGE BIOLOGY 24.9(2018):4238-4250. |
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