气候变化领域集成服务门户(CCPortal): Closed microbial communities self-organize to persistently cycle carbon

CCPortal

DOI	10.1073/pnas.2013564118
	Closed microbial communities self-organize to persistently cycle carbon
	De Jesús Astacio L.M.; Prabhakara K.H.; Li Z.; Mickalide H.; Kuehn S.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:45
英文摘要	Cycles of nutrients (N, P, etc.) and resources (C) are a defining emergent feature of ecosystems. Cycling plays a critical role in determining ecosystem structure at all scales, from microbial communities to the entire biosphere. Stable cycles are essential for ecosystem persistence because they allow resources and nutrients to be regenerated. Therefore, a central problem in ecology is understanding how ecosystems are organized to sustain robust cycles. Addressing this problem quantitatively has proved challenging because of the difficulties associated with manipulating ecosystem structure while measuring cycling. We address this problem using closed microbial ecosystems (CES), hermetically sealed microbial consortia provided with only light. We develop a technique for quantifying carbon cycling in hermetically sealed microbial communities and show that CES composed of an alga and diverse bacterial consortia self-organize to robustly cycle carbon for months. Comparing replicates of diverse CES, we find that carbon cycling does not depend strongly on the taxonomy of the bacteria present. Moreover, despite strong taxonomic differences, self-organized CES exhibit a conserved set of metabolic capabilities. Therefore, an emergent carbon cycle enforces metabolic but not taxonomic constraints on ecosystem organization. Our study helps establish closedmicrobial communities as model ecosystems to study emergent function and persistence in replicate systems while controlling community composition and the environment. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Carbon cycling; Closed ecosystems; Functional redundancy; Microbial communities
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238311
作者单位	Center for the Physics of Living Cells, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States; Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States; Center for the Physics of Evolving Systems, University of Chicago, Chicago, IL 60637, United States; Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637, United States
推荐引用方式 GB/T 7714	De Jesús Astacio L.M.,Prabhakara K.H.,Li Z.,et al. Closed microbial communities self-organize to persistently cycle carbon[J],2021,118(45).
APA	De Jesús Astacio L.M.,Prabhakara K.H.,Li Z.,Mickalide H.,&Kuehn S..(2021).Closed microbial communities self-organize to persistently cycle carbon.Proceedings of the National Academy of Sciences of the United States of America,118(45).
MLA	De Jesús Astacio L.M.,et al."Closed microbial communities self-organize to persistently cycle carbon".Proceedings of the National Academy of Sciences of the United States of America 118.45(2021).