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Thin sections were prepared from plate-growing algal cells, treated with rabbit anti-CaMV antibody, then with a gold-conjugated anti-rabbit IgG, contrasted with uranyl acetate and examined with a Jeol JEM-1010 electron microscope. 10 nm particles were detected in cytoplasma adjacent to cell, and very rarely in central chloroplast. Bars = 500 nm, CW = cell wall, CH = chloroplast.
