Differential Changes in the Amount of Protein Complexes in the Chloroplast Membrane during Senescence of Oat and Bean Leaves | Zendy

Hilla Ben-David | Zendy; Nathan Nelson | Zendy; Shimon Gepstein | Zendy

Open Access

Differential Changes in the Amount of Protein Complexes in the Chloroplast Membrane during Senescence of Oat and Bean Leaves

Author(s) -

Hilla Ben-David,

Nathan Nelson,

Shimon Gepstein

Publication year - 1983

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.73.2.507

Subject(s) - phaseolus , chloroplast , senescence , avena , cytochrome f , photosynthesis , photosystem ii , photosynthetic reaction centre , electron transport chain , photosystem , biology , chlorophyll , photosystem i , hill reaction , botany , chemistry , biochemistry , microbiology and biotechnology , gene

Antibodies against the individual subunits of protein complexes in the chloroplast membranes were used to follow the amounts of these polypeptides during foliar senescence. No change was found in the amount of polypeptides of photosystem I reaction center and the chloroplast coupling factor during senescence of oat (Avena sativa L.) and bean (Phaseolus vulgaris L.) leaves. A significant decrease in the amount of the different components of the cytochrome b(6)-f complex was detected. This change may account for the decrease in the rate of electron transport, which might be the rate limiting step of photosynthesis in senescing leaves.

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