@article{
 title = {Multiplication of antenna genes as a major adaptation to low light in a marine prokaryote},
 type = {article},
 year = {2000},
 identifiers = {[object Object]},
 keywords = {CYANOBACTERIA,EXPRESSION,FAMILY,GROWTH,PHYSIOLOGY,PROCHLOROCOCCUS,PROTEIN,PSBA GENE,SBR_Phyto,SYNECHOCOCCUS},
 pages = {4098-4101},
 volume = {97},
 publisher = {Natl Acad Sciences},
 city = {2101 Constitution Ave NW, Washington, DC 20418, USA},
 id = {54167d44-5682-3f7b-9313-d378547fba31},
 created = {2015-11-02T11:41:38.000Z},
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 abstract = {Two ecotypes of the prokaryote Prochlorococcus adapted to distinct light niches in the ocean have been described recently. These ecotypes are characterized by their different (divinyl-) chlorophyll (Chl) a to chi b ratios and 16S rRNA gene signatures, as well as by their significantly distinct irradiance optima for growth and photosynthesis [Moore, L, R., Rocap, G, & Chisholm, S. W. (1998) Nature (London) 393, 464-467]. However, the molecular basis of their physiological differences remained, so far, unexplained. In this paper, we show that the low-light-adapted Prochlorococcus strain SS120 possesses a gene family of seven transcribed genes encoding different chi a/b-binding proteins (Pcbs). In contrast, Prochlorococcus sp. MED4, a high-light-adapted ecotype, possesses a single pcb gene. The presence of multiple antenna genes in another low-light ecotype (NATL2a), but not in another high-light ecotype (TAK9803-2), is demonstrated. Thus, the multiplication of pcb genes appears as a key factor in the capacity of deep Prochlorococcus populations to survive at extremely low photon fluxes.},
 bibtype = {article},
 author = {Garczarek, L and Hess, W R and Holtzendorff, J and van der Staay, G W M and Partensky, F},
 journal = {Proceedings of the National Academy of Sciences of the United States of America},
 number = {8}
}

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