In photosynthetic electron transport chain of higher plant chloroplasts, electrons are activated through two light reactions in series, resulting in their unidirectional transfer from H2O to NADP+. This is called the ...In photosynthetic electron transport chain of higher plant chloroplasts, electrons are activated through two light reactions in series, resulting in their unidirectional transfer from H2O to NADP+. This is called the non-cyclic electron transfer and its coupled phosphorylation (PSP), the non-cyclic phosphorylation. If certain展开更多
Experimental results of the last few years led to the general contention that plant photosynthesis consists of two collaborating (long wave and short wave) light reactions. It was also generally believed that only one...Experimental results of the last few years led to the general contention that plant photosynthesis consists of two collaborating (long wave and short wave) light reactions. It was also generally believed that only one of these reactions (the long wave one) is involved in the true cyclic photophosphorylation as catalysed by added PMS in isolated chloroplasts. However, it has been shown that this latter type of photophosphorylation is affected by molecular oxygen and the inhibitors of the short wave light reaction such as o-Ph and CMU. In our own experiments we have found that in sweet potato leaf cell preparations (LCP) both the 'red drop' and the 'short wave enhancement' phenomena展开更多
文摘In photosynthetic electron transport chain of higher plant chloroplasts, electrons are activated through two light reactions in series, resulting in their unidirectional transfer from H2O to NADP+. This is called the non-cyclic electron transfer and its coupled phosphorylation (PSP), the non-cyclic phosphorylation. If certain
文摘Experimental results of the last few years led to the general contention that plant photosynthesis consists of two collaborating (long wave and short wave) light reactions. It was also generally believed that only one of these reactions (the long wave one) is involved in the true cyclic photophosphorylation as catalysed by added PMS in isolated chloroplasts. However, it has been shown that this latter type of photophosphorylation is affected by molecular oxygen and the inhibitors of the short wave light reaction such as o-Ph and CMU. In our own experiments we have found that in sweet potato leaf cell preparations (LCP) both the 'red drop' and the 'short wave enhancement' phenomena