articleJan 10, 2022Closed access

Nutrient supply controls the linkage between species abundance and ecological interactions in marine bacterial communities

DTDai, Tianjiao,; Wen, Donghui,; Bates, Colin T,; Wu, Linwei,; Guo, Xue,; Liu, Suo,; Su, Yifan,; Lei, Jiesi,; Zhou, Jizhong,; Yang, Yunfeng,

Abstract

Abstract Nutrient scarcity is pervasive for natural microbial communities, affecting species reproduction and co-existence. However, it remains unclear whether there are general rules of how microbial species abundances are shaped by biotic and abiotic factors. Here we show that the ribosomal RNA gene operon (rrn) copy number, a genomic trait related to bacterial growth rate and nutrient demand, decreases from the abundant to the rare biosphere in the nutrient-rich coastal sediment but exhibits the opposite pattern in the nutrient-scarce pelagic zone of the global ocean. Both patterns are underlain by positive correlations between community-level rrn copy number and nutrients. Furthermore, inter-species…

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Authors

1
  • DT
    Dai, Tianjiao,; Wen, Donghui,; Bates, Colin T,; Wu, Linwei,; Guo, Xue,; Liu, Suo,; Su, Yifan,; Lei, Jiesi,; Zhou, Jizhong,; Yang, Yunfeng,Corresponding

Topics & keywords

Topics
Keywords
  • Nutrient
  • Biology
  • Abundance (ecology)
  • Ecology
  • Pelagic zone
  • Abiotic component
UN Sustainable Development Goals
  • Life below water
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