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A predator-prey interaction between a marine Pseudoalteromonas sp. and Gram-positive bacteria
Citation
Tang, B-L and Yang, J and Chen, X-L and Wang, P and Zhao, H-L and Su, H-N and Li, C-Y and Yu, Y and Zhong, S and Wang, L and Lidbury, I and Ding, H and Wang, M and McMinn, A and Zhang, X-Y and Chen, Y and Zhang, Y-Z, A predator-prey interaction between a marine Pseudoalteromonas sp. and Gram-positive bacteria, Nature Communications, 11, (1) Article 285. ISSN 2041-1723 (2020) [Refereed Article]
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Copyright Statement
Copyright 2020 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/
DOI: doi: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 Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | predator, prey, Pseudoalteromonas |
| Research Division: | Biological Sciences |
| Research Group: | Microbiology |
| Research Field: | Microbial ecology |
| Objective Division: | Environmental Management |
| Objective Group: | Marine systems and management |
| Objective Field: | Marine biodiversity |
| UTAS Author: | McMinn, A (Professor Andrew McMinn) |
| ID Code: | 138969 |
| Year Published: | 2020 |
| Web of Science® Times Cited: | 26 |
| Deposited By: | Ecology and Biodiversity |
| Deposited On: | 2020-05-15 |
| Last Modified: | 2020-12-08 |
| Downloads: | 7 View Download Statistics |
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