Phytoplankton are aquatic counterparts of plants, contributing 50% of CO2 drawdown and O2 production. They also are the base of the marine food chain. Like plants, their photosynthesis and growth rely on nutrients such as phosphate. How phytoplankton regulate P nutrition is poorly understood.

Filamentation is considered to be an essential virulence trait of the fungus Candida albicans. Here we show that lack of filamentation can be compensated by enhanced proliferation, leading to lethal candidiasis.

Our understanding of the ecology and evolution of bacteria and their viruses, bacteriophages, in multispecies contexts is limited. A new review paper summarizes what little we know and highlights the many open questions that remain.