iTRAQ-based quantitative proteomic analysis of Gloeothece sp. PCC 6909: Comparison with its sheathless mutant and adaptations to nitrate deficiency and sulfur limitation.

Abstract excerpt

Gloeothece sp. PCC 6909 is a unicellular N(2)-fixing cyanobacterium with a well defined and highly developed sheath surrounding its cells. A sheathless mutant of this strain was previously obtained by chemical mutagenesis and, although lacking the sheath, it releases large amounts of polysaccharides into the culture medium. To provide a global understanding on the metabolic differences between the two phenotypes,...

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