Structure of PSI, PSII and antennae complexes from yellow-green alga Xanthonema debile

0367258 - BC 2012 RIV NL eng J - Článek v odborném periodiku
Gardian, Zdenko - Tichý, J. - Vácha, František
Structure of PSI, PSII and antennae complexes from yellow-green alga Xanthonema debile.
Photosynthesis Research. Roč. 108, č. 1 (2011), s. 25-32. ISSN 0166-8595. E-ISSN 1573-5079
Grant CEP: GA AV ČR IAA601410907
Výzkumný záměr: CEZ:AV0Z50510513
Klíčová slova: Photosynthesis * Chromophytes * Xanthonema debile
Kód oboru RIV: EF - Botanika
Impakt faktor: 3.243, rok: 2011

Photosynthetic carbon fixation by Chromophytes is one of the significant components of a carbon cycle on the Earth. Their photosynthetic apparatus is different in pigment composition from that of green plants and algae. In this work we report structural maps of photosystem I, photosystem II and light harvesting antenna complexes isolated from a soil chromophytic alga Xanthonema debile (class Xanthophyceae). Electron microscopy of negatively stained preparations followed by single particle analysis revealed that the overall structure of Xanthophytes' PSI and PSII complexes is similar to that known from higher plants or algae. Averaged top-view projections of Xanthophytes' light harvesting antenna complexes (XLH) showed two groups of particles. Smaller ones that correspond to a trimeric form of XLH, bigger particles resemble higher oligomeric form of XLH.
Trvalý link: http://hdl.handle.net/11104/0202001