【摘要】 EGTA>10mmol·L^-1浓度时抑制胀破叶绿体H₂O→BQ和H₂O→MV光合电子传递,而20～60mmol·L^-1CaCl₂则促进上述光合电子传递。CaM在2～10μg·mL^-1浓度范围内对光合电子传递的影响与反应液中Ca²⁺含量有关,当有20mmol·L^-1EGTA存在时抑制H₂O→BQ争H₂O→MV的光合电子传递,当有20mmol·L^-1CaCl₂存在时则促进H₂O→MV的光合电子传递。100～500μmol·L^-1TFP可抑制胀破叶绿体的光合电子传递,结合不同人工电子供体实验表明,在DPC前后可能各有一个作用位点。更多还原

【Abstract】 It has been demonstrated from our research that l) H₂O BQ and H₃O MV photosynthetic electron transport of swollen chloroplasts are inhibited by 10mmol.L^-1EGTA, whereas it can be accelerated by 20-60 mmol.L^-1CaCl₂; 2) the influcnce of 2-10μg.ml^-1CaM on photosynthetic electron transport is varied with the Ca²⁺contcnt of reaction mixture, in the presence of 20 mmol.L^-1EGTA, H₂O BQ and H₂O MV clcctron transport can be inhibited, whereas H₂O MV clcctron transport can be promotcd by presenting of 20 mmol.L^-1CaCl₂; 3) electron transportof swollcn chloroplasts can be inhibited by 100-500 μmol.L^-1TFP, it is indicated from the results of （?）ing artifical clcctron donor and acceptor experiments that there are two action sites exist before and behind the DPC.更多还原