Viral Attachment to Biotic and Abiotic Surfaces in Seawater.

ABSTRACT: Viruses influence microbial community structure and biogeochemical cycles in marine environments. Viral attachment to nonhost surfaces could influence host viral infection rates; however, the prevalence of such viral attachment is not investigated quantitatively. We used coastal seawater viral assemblages and, as models, marine vibriophage (SIO-2) and enterobacteriophages (T2 and T4) to investigate their attachment to probable nonhost marine bacteria. We also studied viral attachment to colloids and other abiotic surfaces in seawater. Centrifugation experiments with bacterium-virus mixtures showed substantial viral loss in the supernatant presumably due to the viral attachment to bacteria. This attachment (0.04 to 24 viruses μm-2 [bacterial surface area]) varied with bacterium-virus combin

SUBMITTER: Yamada Y 

PROVIDER: S-EPMC6974651 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature