昼夜光合作用产物变化的控制：II. 硝酸还原酶活性。
Control of Diurnal Variations in Photosynthetic Products: II. Nitrate Reductase Activity.
机构信息
Division of Irrigation Research, Griffith, Commonwealth Scientific and Industrial Research Organization, New South Wales, Australia.
出版信息
Plant Physiol. 1974 Nov;54(5):762-5. doi: 10.1104/pp.54.5.762.
Abstract
Nitrate accumulates in the leaves of Capsicum annuum L. cv. California Wonder and the leaf content is dependent on the nitrate level supplied to the roots. There is no consistent diurnal periodicity in the leaf nitrate levels.Nitrate reductase activity exhibits three distinct peaks in the leaves. One in the dark period, a second at the time of the prevailing dawn, and a third 6 hours after the beginning of the photoperiod. The third peak of activity can be induced by a short period of illumination (20 minutes) which is also sufficient to induce the labeling of the amino acid fraction by (14)CO(2).
摘要
硝酸盐在辣椒（Capsicum annuum L. cv. California Wonder）的叶片中积累，叶片中的含量取决于根系供应的硝酸盐水平。叶片中的硝酸盐水平没有一致的昼夜周期性。硝酸还原酶活性在叶片中表现出三个明显的高峰。一个在黑暗期，第二个在黎明时，第三个在光周期开始后 6 小时。第三个活性高峰可以被短时间的光照（20 分钟）诱导，这也足以诱导（14）CO（2）标记氨基酸部分。
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本文引用的文献
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2
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