4 结果
A method for loading isolated intact spinach (Spinacia oleracea L.) chloroplasts with (14)C-starch is described. These intact chloroplasts were incubated aerobically in the dark for 30 minutes. Radioactivity in starch declined and glyceric acid 3-phosphate and maltose were the major radioactive
The effect of increasing assay medium sorbitol concentration from 0.33 to 1.0 molar on the photosynthetic reactions of intact and broken spinach (Spinacia oleracea L. var. Long Standing Bloomsdale) chloroplasts was investigated by monitoring O(2) evolution supported by the addition of glyceric acid
Isolated spinach (Spinacia oleracea L. var. Bloomsdale) leaf protoplasts reduced nitrate at rates of 9 micromoles per milligram chlorophyll per hour in light with a 3- to 4-fold stimulation in the presence of HCO(3) (-). A similar stimulation of nitrate reduction in the absence of CO(2) fixation was
Addition of millimolar sodium glyoxylate to spinach (Spinacia oleracea) chloroplasts was inhibitory to photosynthetic incorporation of (14)CO(2) under conditions of both low (0.2 millimolar or air levels) and high (9 millimolar) CO(2) concentrations. Incorporation of (14)C into most metabolites