Viruses are the most abundant biological entities in marine ecosystems.Most of them are phages that infect bacteria and archaea.Phages play important roles in causing the mortality of prokaryotic cells,structuring microbial communities,mediating horizontal gene transfer between different microbes,influencing the microbial food web process,and promoting biogeochemical cycles (such as C,N,etc.) in the ocean.Here we provided an overview of recent advances in research on the interactions between marine microorganisms and their phages,and suggest future research directions based on our understanding of the literature and our own work.
