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Antibodies directed against purified cytochrome f, isolated from the cytochrome b/f complex of spinach chloroplasts, were used in on-grid immunogold labelling studies of spinach leaf tissue. Our results show unambiguously that cytochrome f, and hence the cytochrome b/f complex, is located in both appressed and non-appressed thylakoid membranes.
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Goodchild et al. (1985) studied this question.
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