光介导的同步小球藻中硝酸还原酶的激活
Light-mediated Activation of Nitrate Reductase in Synchronous Chlorella.
机构信息
Pflanzenphysiologisches Institut der Universität Göttingen, Germany.
出版信息
Plant Physiol. 1978 Aug;62(2):284-6. doi: 10.1104/pp.62.2.284.
Abstract
The mechanism underlying the sharp increase in activity of nitrate reductase (EC 1.6.6.1) in Chlorella vulgaris forma tertia (strain 211 8k) during the first hour of the 7 hours/5 hours light/dark cycle was investigated. Using the method of density labeling and isopycnic centrifugation, it could be demonstrated that this rapid increase in activity is based on light-mediated activation rather than de novo synthesis of the enzyme. The problematic nature of cycloheximide specificity and models of nitrate reductase activation are discussed.
摘要
研究了在 7 小时/5 小时光/暗循环的第一个小时内，小球藻变种（菌株 211 8k）中硝酸还原酶（EC 1.6.6.1）活性急剧增加的机制。使用密度标记和等密度离心的方法，可以证明这种活性的快速增加是基于光介导的激活，而不是酶的从头合成。本文还讨论了环己酰亚胺特异性的问题和硝酸还原酶激活的模型。
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本文引用的文献
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Effect of light and glucose on the induction of nitrate reductase and on the distribution of nitrate in etiolated barley leaves.光和葡萄糖对黄化大麦叶片中硝酸还原酶诱导及硝酸盐分布的影响。
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