Flavobacterial exudates disrupt cell cycle progression and metabolism of the diatom Thalassiosira pseudonana.

ABSTRACT: Phytoplankton and bacteria form the base of marine ecosystems and their interactions drive global biogeochemical cycles. The effects of bacteria and bacteria-produced compounds on diatoms range from synergistic to pathogenic and can affect the physiology and transcriptional patterns of the interacting diatom. Here, we investigate physiological and transcriptional changes in the marine diatom Thalassiosira pseudonana induced by extracellular metabolites of a known antagonistic bacterium Croceibacter atlanticus. Mono-cultures of C. atlanticus released compounds that inhibited diatom cell division and elicited a distinctive morphology of enlarged cells with increased chloroplast content and enlarged nuclei, similar to what was previously observed when the diatom was co-cultured with live bact

SUBMITTER: Bartolek Z 

PROVIDER: S-EPMC9666458 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature