Specific bacterial microbiome enhances the sexual reproduction and auxospore production of the marine diatom, Odontella.

ABSTRACT: Auxospore production is a sexual reproductive strategy by diatoms to re-attain normal size after the size-reducing effect of clonal reproduction. Aside from the minimum size threshold used as a sex clock by diatoms, the environmental or chemical triggers that can induce sex in diatoms are still not well understood. Here we investigated the influence of six marine bacteria from five families on the production of sexual cells and auxospores of the ubiquitous marine polar centric diatom, Odontella sp. Microbiome association and co-occurrence with the diatom in culture and in nature were investigated using 16S rRNA amplicon sequencing. Indole acetic acid (IAA) secretion, a phytohormone that regulates plants' growth and sexual development, was explored as a potential inducer of sexual reproduct

SUBMITTER: Sison-Mangus MP 

PROVIDER: S-EPMC9581435 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature