Data from: Mode of resistance to viral lysis affects host growth across multiple environments in the marine picoeukaryote Ostreococcus tauri

Viruses play important roles in population dynamics and as drivers of
evolution in single-celled marine phytoplankton. Viral infection of
Ostreococcus tauri often causes cell lysis, but two spontaneously arising
resistance mechanisms occur: resistant cells that cannot become infected
and resistant producer cells that are infected but not lysed, and which
may slowly release viruses. As of yet, little is known about how
consistent the effects of viruses on their hosts are across different
environments. To measure the effect of host resistance on host growth, and
to determine whether this effect is environmentally dependent, we compared
the growth and survival of susceptible, resistant and resistant producer
O. tauri cells under five environmental conditions with and without
exposure to O. tauri virus. While the effects of exposure to virus on
growth rates did not show a consistent pattern in populations of resistant
cells, there were several cases where exposure to virus affected growth in
resistant hosts, sometimes positively. In the absence of virus, there was
no detectable cost of resistance in any environment, as measured by growth
rate. In fact, the opposite was the case, with populations of resistant
producer cells having the highest growth rates across four of the five
environments.