s41396-018-0185-y.pdf (405.63 kB)
Low activity of lytic pelagiphages in coastal marine waters.
journal contributionposted on 2019-08-23, 15:06 authored by L Alonso-Sáez, XAG Morán, MR Clokie
Phages infect marine bacteria impacting their dynamics, diversity and physiology, but little is known about specific phage-host interactions in situ. We analyzed the joint dynamics in the abundance of phage-related transcripts, as an indicator of viral lytic activity, and their potential hosts using a metatranscriptomic dataset obtained over 2 years in coastal temperate waters of the NE Atlantic. Substantial temporal variability was identified in the expression levels of different phages, likely in response to host availability. Indeed, a significant positive relationship between the abundance of transcripts from some of the most abundant phage types (infecting SAR11, SAR116 and cyanobacteria) and their putative hosts was found. Yet, the ratio of increase in phage transcripts per host cell was significantly lower for pelagiphages than for the HMO-2011 phage, which infects SAR116. Despite the high abundance of pelagiphages in the ocean, they may be less active than other phage types in coastal waters.
Marie Curie European Reintegration Grant FUNDIVERSITY’ (FP7, Grant Agreement 268331) the British Ecological Society and the time-series program RADIALES from the Spanish Institute of Oceanography (IEO).
CitationISME Journal, 2018
Author affiliation/Organisation/COLLEGE OF LIFE SCIENCES/School of Medicine/Department of Infection, Immunity and Inflammation
- VoR (Version of Record)