Bacteroidetes bacteria, important players in the marine sponge larval development process

iScience

Kai Wang¹  Tan Liu¹  Chenzheng Jia¹  Mingyu Li¹  Shuo Yang¹  Huilong Ou¹  Jing Zhao² 

[1] College of Ocean and Earth Sciences of Xiamen University, Xiamen 361005, China;Xiamen City Key Laboratory of Urban Sea Ecological Conservation and Restoration (USER), Xiamen University, Xiangan District, Zhoulongquan Building, Xiamen 361005, China;

关键词: Marine organism;    Ecology;    Microbiology;   

DOI  :  

来源: DOAJ

【 摘 要 】

Summary: Bacteroidetes bacteria are frequently found in association with sponges, but their roles in host development are poorly understood. In this study, thirteen bacterial species (12 genera) isolated from the sponge Tedania sp. revealed a common ability to significantly promote sponge larval settlement at rates 30.00–53.33% higher than controls (p < 0.05). Three effective strategies were adapted: (i) two strains formed biofilms enhancing the settlement rate to 56.67–63.33% within three days. (ii) Five strains secreted hydrosoluble molecules improving larval settlement, reaching 59.17%. (iii) Six species produced extracellular vesicles (EVs) that significantly improved settlement by up to 86.67% (p < 0.05). The EV fluorescence demonstrated that they migrated inside the sponge larvae from the planktonic to metamorphosis stage. Generally, marine sponges specifically enrich Bacteroidetes bacteria because of the important player in host development, establishing the basis for reciprocal adaptive co-evolution between the microbial community and animals, even including higher organisms.

【 授权许可】

Unknown