Diatoms are unicellular algae with plastids acquired by secondary endosymbiosis. They are
responsible for ∼20% of global carbon fixation. We report the 34 million–base pair draft …

Diatoms are photosynthetic secondary endosymbionts found throughout marine and
freshwater environments, and are believed to be responsible for around one-fifth of the primary …

Biological nitrogen fixation is an important source of fixed nitrogen for the biosphere.
Microorganisms catalyse biological nitrogen fixation with the enzyme nitrogenase, which has been …

Phosphorus (P) is a critical driver of phytoplankton growth and ecosystem function in the
ocean. Diatoms are an abundant class of marine phytoplankton that are responsible for …

Dinitrogen (N 2 )-fixing microorganisms (diazotrophs) play important roles in ocean
biogeochemistry and plankton productivity. In this study, we examined the presence and expression …

In large areas of the world’s oceans, biological dinitrogen (N 2) fixation supports a significant
fraction of ecosystem productivity; to date, however, there is little information on the …

Diverse communities of marine phytoplankton carry out half of global primary production.
The vast diversity of the phytoplankton has long perplexed ecologists because these …

To elucidate mechanisms that regulate chloroplast RNA splicing in multicellular plants, we
sought nuclear mutations in maize that result in chloroplast splicing defects. Evidence is …

Glucocorticoids regulate numerous distinct physiological processes, most of which rely on
the ability of the hormone-bound glucocorticoid receptor (GR) to change the expression of …

We examined diazotroph activity in controlled experiments containing natural populations of
nitrogen (N 2 )‐fixing microbes collected offshore from Kane'ohe Bay, Hawai'i, and from …