Genome-wide profiling of responses to cadmium in the diatom Phaeodactylum tricornutum

ABSTRACT: The only group of organisms in which a biological function for cadmium has been shown is the diatoms, which are unicellular phytoplankton. Yet diatoms exhibit similar sensitivity to Cd as other groups of phytoplankton. We have investigated responses of Cd on molecular, metabolic and physiological levels in the diatom Phaeodactylum tricornutum. P. tricornutum apparently has a high tolerance to Cd; only minor responses were observed on growth, pigment and transcriptional changes at cadmium concentrations of 123 µg/l. No significant changes in chlorophyll and xanthophyll levels were observed, and the very few transcripts affected strongly indicate that the cells were able to respond to the increased Cd2+ levels without changing proteins levels. At 10 times this concentration, 1230 µg/l, a muc

ORGANISM(S): Phaeodactylum tricornutum

SUBMITTER: Per Winge 

PROVIDER: E-GEOD-31131 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress