Karenia brevis allelopathy compromises the lipidome, membrane integrity, and photosynthesis of competitors.

ABSTRACT: The formation, propagation, and maintenance of harmful algal blooms are of interest due to their negative effects on marine life and human health. Some bloom-forming algae utilize allelopathy, the release of compounds that inhibit competitors, to exclude other species dependent on a common pool of limiting resources. Allelopathy is hypothesized to affect bloom dynamics and is well established in the red tide dinoflagellate Karenia brevis. K. brevis typically suppresses competitor growth rather than being acutely toxic to other algae. When we investigated the effects of allelopathy on two competitors, Asterionellopsis glacialis and Thalassiosira pseudonana, using nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry (MS)-based metabolomics, we found that the lipidomes of both

SUBMITTER: Poulin RX 

PROVIDER: S-EPMC6015087 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature