Mobilization and Cellular Distribution of Phosphate in the Diatom Phaeodactylum tricornutum.

ABSTRACT: Unicellular organisms that live in marine environments must cope with considerable fluctuations in the availability of inorganic phosphate (P_i). Here, we investigated the extracellular P_i concentration-dependent expression, as well as the intracellular or extracellular localization, of phosphatases and phosphate transporters of the diatom Phaeodactylum tricornutum. We identified P_i-regulated plasma membrane-localized, ER-localized, and secreted phosphatases, in addition to plasma membrane-localized, vacuolar membrane-localized, and plastid-surrounding membrane-localized phosphate transporters that were also regulated in a P_i concentration-dependent manner. These studies not only add further knowledge to already existing transcriptomic data

SUBMITTER: Dell'Aquila G 

PROVIDER: S-EPMC7283521 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature