Properties of Photosynthetic Mutants Isolated from Euglena gracilis | Zendy

Amir Shneyour | Zendy; Mordhay Avron | Zendy

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Properties of Photosynthetic Mutants Isolated from Euglena gracilis

Author(s) -

Amir Shneyour,

Mordhay Avron

Publication year - 1975

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.55.1.137

Subject(s) - photophosphorylation , euglena gracilis , photosynthesis , electron transport chain , photosystem ii , mutant , photosystem i , biology , photosystem , cytochrome , carbon fixation , chloroplast , biophysics , chemistry , biochemistry , botany , gene , enzyme

Four different photosynthetic mutants of Euglena gracilis were characterized as to their lesions in photosynthetic electron transport. Two were defective around photosystem II: one, in electron transport on the oxidizing side of photosystem II, and the second lacked cytochrome 558. The location of the defect in the third mutant was concluded to be in the carbon fixation cycle, since it could catalyse both photosynthetic electron transport and photophosphorylation. The fourth mutant had a defect in its mechanism of photophosphorylation.

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