气候变化领域集成服务门户(CCPortal): Ecological drivers of bacterial community assembly in synthetic phycospheres

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DOI	10.1073/pnas.1917265117
	Ecological drivers of bacterial community assembly in synthetic phycospheres
	Fu H.; Uchimiya M.; Gore J.; Moran M.A.
发表日期	2020
ISSN	0027-8424
起始页码	3656
结束页码	3662
卷号	117 期号:7
英文摘要	In the nutrient-rich region surrounding marine phytoplankton cells, heterotrophic bacterioplankton transform a major fraction of recently fixed carbon through the uptake and catabolism of phytoplankton metabolites. We sought to understand the rules by which marine bacterial communities assemble in these nutrient-enhanced phycospheres, specifically addressing the role of host resources in driving community coalescence. Synthetic systems with varying combinations of known exometabolites of marine phytoplankton were inoculated with seawater bacterial assemblages, and communities were transferred daily to mimic the average duration of natural phycospheres. We found that bacterial community assembly was predictable from linear combinations of the taxa maintained on each individual metabolite in the mixture, weighted for the growth each supported. Deviations from this simple additive resource model were observed but also attributed to resource-based factors via enhanced bacterial growth when host metabolites were available concurrently. The ability of photosynthetic hosts to shape bacterial associates through excreted metabolites represents a mechanism by which microbiomes with beneficial effects on host growth could be recruited. In the surface ocean, resource-based assembly of host-associated communities may underpin the evolution and maintenance of microbial interactions and determine the fate of a substantial portion of Earth’s primary production. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Community assembly; Phycospheres; Phytoplankton–bacteria interactions
语种	英语
scopus关键词	Article; cell component; ecology; microbial community; nonhuman; phycosphere; phytoplankton; priority journal; species composition; bacterium; classification; ecosystem; genetics; growth, development and aging; heterotrophy; isolation and purification; metabolism; microbiology; microflora; phylogeny; sea water; Bacteria; Ecosystem; Heterotrophic Processes; Microbiota; Phylogeny; Phytoplankton; Seawater
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/161055
作者单位	Fu, H., Department of Marine Sciences, University of Georgia, Athens, GA 30602, United States; Uchimiya, M., Department of Marine Sciences, University of Georgia, Athens, GA 30602, United States, Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, United States; Gore, J., Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Moran, M.A., Department of Marine Sciences, University of Georgia, Athens, GA 30602, United States
推荐引用方式 GB/T 7714	Fu H.,Uchimiya M.,Gore J.,et al. Ecological drivers of bacterial community assembly in synthetic phycospheres[J],2020,117(7).
APA	Fu H.,Uchimiya M.,Gore J.,&Moran M.A..(2020).Ecological drivers of bacterial community assembly in synthetic phycospheres.Proceedings of the National Academy of Sciences of the United States of America,117(7).
MLA	Fu H.,et al."Ecological drivers of bacterial community assembly in synthetic phycospheres".Proceedings of the National Academy of Sciences of the United States of America 117.7(2020).