电子传递抑制剂对氧摄取的刺激作用。
Stimulations of oxygen uptake by electron transfer inhibitors.
机构信息
Department of Botany and Plant Biochemistry, University of California, Los Angeles, California.
出版信息
Plant Physiol. 1966 May;41(5):797-802. doi: 10.1104/pp.41.5.797.
Abstract
The stimulation of oxygen uptake induced in avocado tissue slices by amytal, azide and cyanide has been studied. The effects of these inhibitors on O(2) uptake and on phosphorylation suggest the coexistence of phosphorylating and non-phosphorylating electron transfer systems in the fruit. The reason for the stimulations of O(2) uptake is believed to be the result of an increased supply of a limiting cofactor to the phosphorylating sites. The increased availability of cofactor per site is due to the inhibition of part of the cytochrome chain and the consequent reduction in the number of active phosphorylating sites.
摘要
已研究了阿米妥、叠氮化物和氰化物对鳄梨组织切片中氧摄取的刺激作用。这些抑制剂对 O(2)摄取和磷酸化的影响表明，在果实中存在磷酸化和非磷酸化电子传递系统的共存。O(2)摄取的刺激作用被认为是增加了对磷酸化部位的有限辅因子的供应的结果。每个部位辅因子的可用性增加是由于抑制了一部分细胞色素链，从而减少了活性磷酸化部位的数量。
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