Lipidomic Screening of Marine Diatoms Reveals Release of Dissolved Oxylipins Associated with Silicon Limitation and Growth Phase.

ABSTRACT: Marine diatoms are an important group of phytoplankton that can shape marine ecosystems and global carbon cycling. When stressed, either physiologically or by grazing, diatoms release oxidized, lipid-derived signals known as oxylipins. Diatom-derived oxylipins are proposed to serve as defense and signaling chemicals that affect multiple components of marine ecosystems. Therefore, to elucidate the diversity of diatom-derived oxylipins produced during stress, we profiled the spectrum of dissolved lipids of five diatom species in culture under silicon limitation and across growth phases using ultra-high performance liquid chromatography coupled with high-resolution accurate mass spectrometry. In this study, we present evidence that physiological changes associated with Si-limitation elicit th

SUBMITTER: Ulloa I 

PROVIDER: S-EPMC12653812 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature