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A predator-prey interaction between a marine Pseudoalteromonas sp. and Gram-positive bacteria
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Tang, Bai-Lu, Yang, Jie, Chen, Xiu-Lan, Wang, Peng, Zhao, Hui-Lin, Su, Hai-Nan, Li, Chun-Yang, Yu, Yang, Zhong, Shuai, Wang, Lei, Lidbury, Ian, Ding, Haitao, Wang, Min, McMinn, Andrew, Zhang, Xi-Ying, Chen, Yin and Zhang, Yu-Zhong (2020) A predator-prey interaction between a marine Pseudoalteromonas sp. and Gram-positive bacteria. Nature Communications, 11 (1). 285. doi:10.1038/s41467-019-14133-x
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Official URL: https://doi.org/10.1038/s41467-019-14133-x
Abstract
Predator-prey interactions play important roles in the cycling of marine organic matter. Here we show that a Gram-negative bacterium isolated from marine sediments (Pseudoalteromonas sp. strain CF6-2) can kill Gram-positive bacteria of diverse peptidoglycan (PG) chemotypes by secreting the metalloprotease pseudoalterin. Secretion of the enzyme requires a Type II secretion system. Pseudoalterin binds to the glycan strands of Gram positive bacterial PG and degrades the PG peptide chains, leading to cell death. The released nutrients, including PG-derived D-amino acids, can then be utilized by strain CF6-2 for growth. Pseudoalterin synthesis is induced by PG degradation products such as glycine and glycine-rich oligopeptides. Genes encoding putative pseudoalterin-like proteins are found in many other marine bacteria. This study reveals a new microbial interaction in the ocean.
| Item Type: | Journal Article | ||||||||||||||||||||||||
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| Subjects: | Q Science > QH Natural history Q Science > QL Zoology |
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| Divisions: | Faculty of Science > Life Sciences (2010- ) | ||||||||||||||||||||||||
| SWORD Depositor: | Library Publications Router | ||||||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Predation (Biology), Marine organisms -- Effect of predation on, Gram-positive bacteria , Marine sediments -- Microbiology | ||||||||||||||||||||||||
| Journal or Publication Title: | Nature Communications | ||||||||||||||||||||||||
| Publisher: | Nature Publishing Group | ||||||||||||||||||||||||
| ISSN: | 2041-1723 | ||||||||||||||||||||||||
| Official Date: | 15 January 2020 | ||||||||||||||||||||||||
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| Volume: | 11 | ||||||||||||||||||||||||
| Number: | 1 | ||||||||||||||||||||||||
| Article Number: | 285 | ||||||||||||||||||||||||
| DOI: | 10.1038/s41467-019-14133-x | ||||||||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||||||||
| Publisher Statement: | ** From Europe PMC via Jisc Publications Router ** History: ppub 01-01-2020; epub 15-01-2020. ** Licence for this article: cc by | ||||||||||||||||||||||||
| Access rights to Published version: | Open Access | ||||||||||||||||||||||||
| RIOXX Funder/Project Grant: |
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