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Glycine and Serine Metabolism in P. marinus MIT9313

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The marine unicellular Cyanobacterium Prochlorococcus is the smallest-known oxygen-evolving autotroph. It numerically dominates the phytoplankton in the tropical and subtropical oceans, and is responsible for a significant fraction of global photosynthesis. Prochlorococcus marinus lacks phycobilisomes that are characteristic of Cyanobacteria, and contains Chlorophyll b as its major accessory pigment. This enables it to absorb blue light efficiently at the low-light intensities and blue wavelengths characteristic of the deep euphotic zone. It contributes 30-80% of the total photosynthesis in the oligotrophic oceans, and thus plays a significant role in the global carbon cycle and the Earth s climate. Prochlorococcus marinus MIT9313 is a member of Prochlorophytes The genome of MIT9313, a low-light-adapted strain consists of a single circular chromosome and encodes 2,275 [...]


1.Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche differentiation.
Rocap G, Larimer FW, Lamerdin J, Malfatti S, Chain P, Ahlgren NA, Arellano A, Coleman M, Hauser L, Hess WR, Johnson ZI, Land M, Lindell D, Post AF, Regala W, Shah M, Shaw SL, Steglich C, Sullivan MB, Ting CS, Tolonen A, Webb EA, Zinser ER, Chisholm SW.
Nature. 2003 Aug 28;424(6952):1042-7. Epub 2003 Aug 13.
2.Effects of high light on transcripts of stress-associated genes for the cyanobacteria Synechocystis sp. PCC 6803 and Prochlorococcus MED4 and MIT9313.
Mary I, Tu CJ, Grossman A, Vaulot D.
Microbiology. 2004 May;150(Pt 5):1271-81.
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