Diel Oscillation of Microbial Gene Transcripts Declines With Depth in Oligotrophic Ocean Waters.

ABSTRACT: Diel oscillations in primary and secondary production, growth, metabolic activity, and gene expression commonly occur in marine microbial communities in ocean surface waters. Diel periodicity of gene transcription has been demonstrated in photoautotrophic and heterotrophic microbes in both coastal and open ocean environments. To better define the spatiotemporal distribution and patterns of these daily oscillations, we investigated how diel periodicity in gene transcripts changed with depth from the surface waters to the upper mesopelagic. We postulated that diel oscillation of transcript abundances would diminish at greater depths across the collective microbial community due to decreasing light availability. The results showed that the number and total proportion of gene transcripts and t

SUBMITTER: Vislova A 

PROVIDER: S-EPMC6769238 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature