Molecular mechanisms by which marine phytoplankton respond to their dynamic chemical environment

TitleMolecular mechanisms by which marine phytoplankton respond to their dynamic chemical environment
Publication TypeJournal Article
Year of Publication2015
AuthorsPalenik B
JournalAnnual Review of Marine Science, Vol 7
Date Published2014/12
Type of ArticleReview; Book Chapter
ISBN Number1941-1405
Accession NumberWOS:000348560700015
Keywordsacclimation; adaptation; assimilation; biomarkers; cylindrotheca-fusiformis; diatom thalassiosira-pseudonana; horizontal gene transfer; iron availability; metal limitation; nitrogen; nutrient limitation; oceanic diatom; phaeodactylum-tricornutum; phosphate acquisition genes; prochlorococcus ecotypes; silicon response; transcriptional response

Marine scientists have long been interested in the interactions of marine phytoplankton with their chemical environments. Nutrient availability clearly controls carbon fixation on a global scale, but the interactions between phytoplankton and nutrients are complex and include both short-term responses (seconds to minutes) and longer-term evolutionary adaptations. This review outlines how genomics and functional genomics approaches are providing a better understanding of these complex interactions, especially for cyanobacteria and diatoms, for which the genome sequences of multiple model organisms are available. Transporters and related genes are emerging as the most likely candidates for biomarkers in stress-specific studies, but other genes are also possible candidates. One surprise has been the important role of horizontal gene transfer in mediating chemical-biological interactions.

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