Proteomic Analysis of Plasma Membranes of Cyanobacterium <italic>Synechocystis</italic> sp. Strain PCC 6803 in Response to High pH Stress

Global Transcriptional Response of the Alkalitolerant Cyanobacterium Synechocystis sp. Strain PCC 6803 to pH 10

Putrescine transport in a cyanobacterium Synechocystis sp. PCC 6803.

The transport of putrescine into a moderately salt tolerant cyanobacterium Synechocystis sp. PCC 6803 was characterized by measuring the uptake of radioactively-labeled putrescine. Putrescine transport showed saturation kinetics with an apparent K(m) of 92 +/- 10 microM and V(max) of 0.33 +/- 0.05 nmol/min/mg protein. The transport of putrescine was pH-dependent with highest activity at pH 7.0....

Localization of NAD(P)H dehydrogenase in the cyanobacterium Synechocystis sp. strain PCC 6803.

Antibodies raised against NdhH and NdhB detected these proteins in the thylakoid membrane of Synechocystis sp. strain PCC 6803, but not in a purified cytoplasmic membrane. We conclude that NAD(P)H dehydrogenase is largely, if not exclusively, confined to the thylakoid membrane.

Tocopherols protect Synechocystis sp. strain PCC 6803 from lipid peroxidation.

Tocopherols (vitamin E) are lipid-soluble antioxidants synthesized only by photosynthetic eukaryotes and some cyanobacteria, and have been assumed to play important roles in protecting photosynthetic membranes from oxidative stress. To test this hypothesis, tocopherol-deficient mutants of Synechocystis sp. strain PCC 6803 (slr1736 and slr1737 mutants) were challenged with a series of reactive o...

Finished Genome Sequence of the Unicellular Cyanobacterium Synechocystis sp. Strain PCC 6714

Synechocystis sp. strain PCC 6714 is a unicellular cyanobacterium closely related to the popular model organism Synechocystis sp. strain PCC 6803. A combination of PacBio SMRT and Illumina GAIIx data results in a highly accurate finished genome sequence that provides a reliable resource for further comparative analyses.