Morphological and Photosynthetic Properties of Digitonin-treated Chloroplast Membranes from the Wild-type and ac-5 Strains of Chlamydomonas reinhardi1
AUTOR(ES)
Steinback, Katherine E.
RESUMO
Chloroplast membranes of wild-type Chlamydomonas reinhardi, treated with digitonin, yield photosystem II-rich and photosystem I-rich fractions; this fractionation is accompanied by a separation of stacked (grana) lamella from unstacked (stroma) lamellae. Poor fractionation of the photosystems occurs when the treated chloroplast membranes derive from the ac-5 strain grown mixotrophically, whereas good fractionation occurs with ac-5 cells grown phototrophically; the mixotrophic cells possess only unstacked membranes, whereas the phototrophic cells possess stacked membranes. We concluded that digitonin fractionation is dependent on the stacked membrane configuration.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=541724Documentos Relacionados
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