The Development of Photosynthesis in a Greening Mutant of Chlorella and an Analysis of the Light Saturation Curve | Zendy

Helen Herron | Zendy; D. Mauzerall | Zendy

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The Development of Photosynthesis in a Greening Mutant of Chlorella and an Analysis of the Light Saturation Curve

Author(s) -

Helen Herron,

D. Mauzerall

Publication year - 1972

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.50.1.141

Subject(s) - greening , photosynthesis , chlorophyll , chlorella , photosynthetic reaction centre , saturation (graph theory) , chlorella vulgaris , pigment , oxygen evolution , chlorophyll a , botany , mutant , hill reaction , biology , biophysics , chemistry , algae , biochemistry , chloroplast , ecology , mathematics , combinatorics , gene , organic chemistry , electrode , electrochemistry

Photosynthetic oxygen evolution considerably precedes the rise in chlorophyll during the greening of a yellow mutant of Chlorella vulgaris. Dark-grown cells required 20 times more light to saturate photosynthesis than light-grown or normal cells. The chlorophyll appears to add first to active reaction centers, then to fill in a more general antenna. The carotenoid pigments seem to add more randomly to the reaction centers. The shape of the light saturation curves can be explained with the assumption that an excitation in the antenna can reach several reaction centers. The efficiency of the total unit is constant during the greening process.

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