A Comparison of the Relative Rates of Transport of Ascorbate and Glucose Across the Thylakoid, Chloroplast and Plasmalemma Membranes of Pea Leaf Mesophyll Cells

Mesophyll protoplasts, chloroplasts and thylakoids were prepared from the leaves of 10-12 day old pea seedlings. They contained 1618 ± 351, 197 ± 30 and 25 ± 7nmol ascorbate per milligram of chlorophyll respectively equivalent to average concentrations of 8.4, 9.8 and 3.8 mM ascorbate in the intact...

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