RAO YuCai, HU BaoQing, WEN ChunGen. EFFECT OF LIGHTING,TEMPERATURE AND pH ON PHOTOSYNTHETIC CHARACTERS OF HAEMATOCOCCUS PLUVIALIS CG-11[J]. ACTA HYDROBIOLOGICA SINICA, 2009, 33(3): 407-412.
Citation: RAO YuCai, HU BaoQing, WEN ChunGen. EFFECT OF LIGHTING,TEMPERATURE AND pH ON PHOTOSYNTHETIC CHARACTERS OF HAEMATOCOCCUS PLUVIALIS CG-11[J]. ACTA HYDROBIOLOGICA SINICA, 2009, 33(3): 407-412.

EFFECT OF LIGHTING,TEMPERATURE AND pH ON PHOTOSYNTHETIC CHARACTERS OF HAEMATOCOCCUS PLUVIALIS CG-11

  • The effects of light intensity, temperature and pH on photosynthetic characters of Haematococcus pluvialis CG-11 were studied by measuring photosynthetic O2 evolution and fluorescence kinetics. The results showed that the saturation thetic rate was obtained at 25℃; the photosynthetic efficiency kept quite high at the pH range of 7.5-8.0, with the maxi-range of 7.5-8.0, the Fv/Fm, Fv/Fo, ΦPSⅡ and ETR increased following the rising of pH, with their maximum values at pH 7.5, Fv/Fm and Fv/Fo decreased significantly over pH 7.5, while the decreasing trend didn't change obviously in ΦPSⅡ and ETR.
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