Vardi Lab

Weizmann Institute

- · Israel

ERC-funded
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ERC Advanced Grant · 2021

The impact of the viral shunt and its metabolic landscape on microbial lifestyles and the flow of carbon during algal blooms

The fate of carbon in marine environments is influenced by associations between heterotrophic bacteria and phytoplankton, mediated by chemical communication and metabolic exchange. Deciphering the nature of these associations is critical given the impact of marine plankton on biogeochemical cycling and climate regulation. Viral infection is a prevalent mortality agent of algal blooms in the ocean, leading to massive release of biomass to the dissolved organic matter (DOM) pool, one of the largest global inventories of carbon. This process, termed the ‘viral shunt’, is a key ecosystem process, but remains unquantifiable and mechanistically enigmatic. Furthermore, the metabolic composition of…

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