Increased biofilm formation due to high-temperature adaptation in marine Roseobacter.

ABSTRACT: Ocean temperatures will increase significantly over the next 100 years due to global climate change¹. As temperatures increase beyond current ranges, it is unclear how adaptation will impact the distribution and ecological role of marine microorganisms². To address this major unknown, we imposed a stressful high-temperature regime for 500 generations on a strain from the abundant marine Roseobacter clade. High-temperature-adapted isolates significantly improved their fitness but also increased biofilm formation at the air-liquid interface. Furthermore, this altered lifestyle was coupled with genomic changes linked to biofilm formation in individual isolates, and was also dominant in evolved populations. We hypothesize that the increasing biofilm formation was driven b

SUBMITTER: Kent AG 

PROVIDER: S-EPMC6119078 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature