Photochemical performance of the acidophilic red alga Cyanidium sp. in a pH gradient

0386300 - BÚ 2013 RIV NL eng J - Journal Article
Kvíderová, Jana
Photochemical performance of the acidophilic red alga Cyanidium sp. in a pH gradient.
Origins of Life and Evolution of the Biosphere. Roč. 42, č. 2-3 (2012), s. 223-234. ISSN 0169-6149. E-ISSN 1573-0875.
[European Workshop on Astrobiology of the European-Astrobiology-Network-Association (EANA) /11/. German Aerosp Ctr, Cologne, 11.07.2011-14.07.2011]
R&D Projects: GA MŠMT 1M0571
Institutional research plan: CEZ:AV0Z60050516
Institutional support: RVO:67985939
Keywords : acidophilic red alga * pH gradient * photochemistry
Subject RIV: EF - Botanics
Impact factor: 1.831, year: 2012

Acidophilic red alga Cyanidium sp.was exposed to 9 different pH conditions in a pH gradient from 0.5 to 5. Maximum quantum yield was determined after 30 min, 1 h, 2 h, 4 h, 6 h and 24 h of exposure. The effect of pH was observable as early as 30 min after exposure and the pattern remainded stable or with only minor modifications for 24 h. The optimum pH rangef from 1.5 to 2.5, reflecting thus conditions at original locality. At pH below 1, a steep decrease of photochemical activity was observed, while at pH above 3, its decline was more moderate.
Permanent Link: http://hdl.handle.net/11104/0215580