Počet záznamů: 1  

Temperature dependence of photosynthesis and thylakoid lipid composition in the red snow alga Chlamydomonas cf. nivalis (Chlotophyceae)

  1. 1.
    0440897 - MBÚ 2015 RIV GB eng J - Článek v odborném periodiku
    Lukeš, Martin - Procházková, L. - Shmidt, O. - Nedbalová, L. - Kaftan, David
    Temperature dependence of photosynthesis and thylakoid lipid composition in the red snow alga Chlamydomonas cf. nivalis (Chlotophyceae).
    FEMS Microbiology Ecology. Roč. 89, č. 2 (2014), s. 303-315. ISSN 0168-6496. E-ISSN 1574-6941
    Grant CEP: GA MŠMT ED2.1.00/03.0110
    Grant ostatní: GAJU(CZ) 143/2013/P
    Institucionální podpora: RVO:61388971
    Klíčová slova: electron transfer * snow * algae * photosynthesis
    Kód oboru RIV: EE - Mikrobiologie, virologie
    Impakt faktor: 3.568, rok: 2014

    Here, we report an effect of short acclimation to a wide span of temperatures on photosynthetic electron transfer, lipid and fatty acid composition in the snow alga Chlamydomonas cf. nivalis. The growth and oxygen evolution capacity were low at 2 degrees C yet progressively enhanced at 10 degrees C and were significantly higher at temperatures from 5 to 15 degrees C in comparison with the mesophilic control Chlamydomonas reinhardtii. In search of the molecular mechanisms responsible for the adaptation of photosynthesis to low temperatures, we have found unprecedented high rates of Q(A) to Q(B) electron transfer. The thermodynamics of the process revealed the existence of an increased structural flexibility that we explain with the amino acid changes in the D1 protein combined with the physico-chemical characteristics of the thylakoid membrane composed of > 80% negatively charged phosphatidylglycerol.
    Trvalý link: http://hdl.handle.net/11104/0243988

     
     
Počet záznamů: 1  

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