Metabolomics and proteomics reveal impacts of chemically mediated competition on marine plankton.

ABSTRACT: Competition is a major force structuring marine planktonic communities. The release of compounds that inhibit competitors, a process known as allelopathy, may play a role in the maintenance of large blooms of the red-tide dinoflagellate Karenia brevis, which produces potent neurotoxins that negatively impact coastal marine ecosystems. K. brevis is variably allelopathic to multiple competitors, typically causing sublethal suppression of growth. We used metabolomic and proteomic analyses to investigate the role of chemically mediated ecological interactions between K. brevis and two diatom competitors, Asterionellopsis glacialis and Thalassiosira pseudonana. The impact of K. brevis allelopathy on competitor physiology was reflected in the metabolomes and expressed proteomes of both diatoms,

SUBMITTER: Poulson-Ellestad KL 

PROVIDER: S-EPMC4066504 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature