Comparative quantitative proteomics of prochlorococcus ecotypes to a decrease in environmental phosphate concentrations.

ABSTRACT:

Background

The well-lit surface waters of oligotrophic gyres significantly contribute to global primary production. Marine cyanobacteria of the genus Prochlorococcus are a major fraction of photosynthetic organisms within these areas. Labile phosphate is considered a limiting nutrient in some oligotrophic regions such as the Caribbean Sea, and as such it is crucial to understand the physiological response of primary producers such as Prochlorococcus to fluctuations in the availability of this critical nutrient.

Results

Prochlorococcus strains representing both high light (HL) (MIT9312) and low light (LL) (NATL2A and SS120) ecotypes were grown identically in phosphate depleted media (10 μM Pi). The three strains displayed marked differences in cellular protein expression, as

SUBMITTER: Fuszard MA 

PROVIDER: S-EPMC3349580 | biostudies-literature | 2012 Mar

REPOSITORIES: biostudies-literature