Nitrogen Flow in Diazotrophic Cyanobacterium Aphanizomenon flos-aquae Is Altered by Cyanophage Infection.

ABSTRACT: Viruses can significantly influence cyanobacteria population dynamics and activity, and through this the biogeochemical cycling of major nutrients. However, surprisingly little attention has been given to understand how viral infections alter the ability of diazotrophic cyanobacteria for atmospheric nitrogen fixation and its release to the environment. This study addressed the importance of cyanophages for net ¹⁵N₂ assimilation rate, expression of nitrogenase reductase gene (nifH) and changes in nitrogen enrichment (¹⁵N/¹⁴N) in the diazotrophic cyanobacterium Aphanizomenon flos-aquae during infection by the cyanophage vB_AphaS-CL131. We found that while the growth of A. flos-aquae was inhibited by cyanophage addition (

SUBMITTER: Kuznecova J 

PROVIDER: S-EPMC7466765 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature