Abstract:
:Understanding the rules that govern the successions of gut microbiota is prerequisite for testing general ecological theories and sustaining a desirable microbiota. However, the ignorance of microeukaryotes raises the question of whether gut microeukaryotes are assembled according to the same rules as bacteria. We tracked the shrimp gut bacterial and microeukaryotic communities by a longitudinal dense sampling. The successions of both domains were significantly correlated with host age, with relatively stable microeukaryotic communities in adult shrimp. Gut microeukaryotes exhibited significantly higher turnover rate, but fewer transient species, lower proportion of temporal generalists, and narrower habitat niche breadth than bacteria. The γ-diversity partitioning analysis revealed that the successions of gut microbiotas were primarily ascribed to the high dissimilarity as shrimp aged ([Formula: see text]IntraTimes), whereas the relative importance of [Formula: see text]IntraTimes was significantly higher for microeukaryotes than that for bacteria. Compared with contrasting ecological processes in governing free-living bacteria and microeukaryotes, the ecological patterns were comparable between host-associated gut counterparts. However, the gut microeukaryotes were governed more strongly by deterministic selection relative to nestedness compared with the gut bacteria, which supports the "size-plasticity" hypothesis. Our results highlight the importance of independently interpreting free-living and host-associated meta-communities for a comprehensive understanding of the processes that govern microbial successions.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Xiong J,Li X,Yan M,Lu J,Qiu Q,Chen Jdoi
10.1007/s00248-020-01533-6subject
Has Abstractpub_date
2020-11-01 00:00:00pages
935-945issue
4eissn
0095-3628issn
1432-184Xpii
10.1007/s00248-020-01533-6journal_volume
80pub_type
杂志文章abstract::The abundance ofAeromonas hydrophila was measured monthly at 29 sites in Albemarle Sound, North Carolina and its tributaries from April 1977 through July 1979. Simultaneous measurements included heterotrophic plate count bacteria, fecal coliform bacteria, and 18 physical and chemical parameters. Using only 6 water qua...
journal_title:Microbial ecology
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pub_type: 杂志文章
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journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02014960
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更新日期:2013-04-01 00:00:00
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doi:10.1007/s00248-006-9092-2
更新日期:2007-02-01 00:00:00
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journal_title:Microbial ecology
pub_type: 杂志文章
doi:10.1007/BF02010548
更新日期:1980-06-01 00:00:00
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journal_title:Microbial ecology
pub_type: 杂志文章
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