气候变化领域集成服务门户(CCPortal): Nutrient stoichiometry shapes microbial coevolution

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DOI	10.1111/ele.13252
	Nutrient stoichiometry shapes microbial coevolution
	Larsen M.L.; Wilhelm S.W.; Lennon J.T.
发表日期	2019
ISSN	1461023X
卷号	22 期号:6
英文摘要	Coevolution is a force contributing to the generation and maintenance of biodiversity. It is influenced by environmental conditions including the scarcity of essential resources, which can drive the evolution of defence and virulence traits. We conducted a long-term chemostat experiment where the marine cyanobacterium Synechococcus was challenged with a lytic phage under nitrogen (N) or phosphorus (P) limitation. This manipulation of nutrient stoichiometry altered the stability of host–parasite interactions and the underlying mode of coevolution. By assessing the infectivity with > 18 000 pairwise challenges, we documented directional selection for increased phage resistance, consistent with arms-race dynamics while phage infectivity fluctuated through time, as expected when coevolution is driven by negative frequency-dependent selection. The resulting infection networks were 50% less modular under N- versus P-limitation reflecting host-range contraction and asymmetric coevolutionary trajectories. Nutrient stoichiometry affects eco-evolutionary feedbacks in ways that may alter the dynamics and functioning of environmental and host-associated microbial communities. © 2019 John Wiley & Sons Ltd/CNRS
英文关键词	Arms race; bacteria; networks; phage; resistance; resources
语种	英语
scopus关键词	Synechococcus elongatus PCC 6301; bacteriophage; biodiversity; evolution; host parasite interaction; Bacteriophages; Biodiversity; Biological Evolution; Host-Parasite Interactions; Nutrients
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121083
作者单位	Department of Biology, Indiana University, Bloomington, IN 47405, United States; Department of Microbiology, University of Tennessee, Knoxville, TN 37996, United States
推荐引用方式 GB/T 7714	Larsen M.L.,Wilhelm S.W.,Lennon J.T.. Nutrient stoichiometry shapes microbial coevolution[J],2019,22(6).
APA	Larsen M.L.,Wilhelm S.W.,&Lennon J.T..(2019).Nutrient stoichiometry shapes microbial coevolution.Ecology Letters,22(6).
MLA	Larsen M.L.,et al."Nutrient stoichiometry shapes microbial coevolution".Ecology Letters 22.6(2019).