The Primitive Thylakoid-Less Cyanobacterium Gloeobacter Is a Common Rock-Dwelling Organism

0395232 - BÚ 2014 RIV US eng J - Článek v odborném periodiku
Mareš, Jan - Hrouzek, Pavel - Kaňa, Radek - Ventura, S. - Strunecký, Otakar - Komárek, Jiří
The Primitive Thylakoid-Less Cyanobacterium Gloeobacter Is a Common Rock-Dwelling Organism.
PLoS ONE. Roč. 8, č. 6 (2013), e66323. ISSN 1932-6203. E-ISSN 1932-6203
Grant CEP: GA ČR GAP506/12/1818; GA MŠMT(CZ) ED2.1.00/03.0110
Institucionální podpora: RVO:67985939 ; RVO:61388971
Klíčová slova: cyanobacteria * evolution * Gloeobacter
Kód oboru RIV: EB - Genetika a molekulární biologie
Impakt faktor: 3.534, rok: 2013

The most primitive among living cyanobacteria, Gloeobacter violaceus, shows a unique ancestral cell organization with a complete absence of inner membranes (thylakoids) and an uncommon structure of the photosynthetic apparatus. It also numbers among the most widely used organisms in experimental photosynthesis research. Except for a few related culture isolates, there has been little data on the actual biology of Gloeobacter, being relegated to an ‘evolutionary curiosity’’ with an enigmatic identity. Here we show that members of the genus Gloeobacter probably are common rock-dwelling cyanobacteria. On the basis of morphological, ultrastructural, pigment, and phylogenetic comparisons of available Gloeobacter strains, as well as on the basis of three new independent isolates and historical type specimen, we have produced strong evidence as to the close relationship of Gloeobacter to a long known rock-dwelling cyanobacterial morphospecies Aphanothece caldariorum.
Trvalý link: http://hdl.handle.net/11104/0223325