Gene expression response to copper toxicity between coastal and open ocean strains of marine Synechococcus

ABSTRACT: Marine cyanobacteria are thought to be the most sensitive of the phytoplankton groups to copper toxicity, yet little is known of the transcriptional response of marine Synechococcus to copper shock. Global transcriptional response to two levels of copper shock was assayed in both a coastal and an open ocean strain of marine Synechococcus using whole genome expression microarrays. Both strains showed an osmoregulatory-like response, perhaps as a result of increasing membrane permeability. This could have implications for marine carbon cycling if copper shock leads to dissolved organic carbon leakage in Synechococcus. The two strains additionally showed a reduction in photosynthetic gene transcripts. Contrastingly, the open ocean strain showed a typical stress response whereas the coast

ORGANISM(S): Synechococcus sp. CC9311

SUBMITTER: Chris Dupont 

PROVIDER: E-GEOD-13910 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress