Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 120, Issue 1, Pages -Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.2215000120
Keywords
virovory; viral shunt; microbial loop
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Viruses impact host cells and indirectly affect ecosystem processes. Plankton such as ciliates can consume viruses and still grow and reproduce even without other food sources. These findings suggest that the effects of viruses on ecosystems go beyond simple energy transfer.
Viruses impact host cells and have indirect effects on ecosystem processes. Plankton such as ciliates can reduce the abundance of virions in water, but whether virus consumption translates into demographic consequences for the grazers is unknown. Here, we show that small protists not only can consume viruses they also can grow and divide given only viruses to eat. Moreover, the ciliate Halteria sp. foraging on chloroviruses displays dynamics and interaction parameters that are similar to other microbial trophic interactions. These results suggest that the effect of viruses on ecosystems extends beyond (and in contrast to) the viral shunt by redirecting energy up food chains.
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