在植物激素和硝酸盐营养的影响下，绿色黄瓜子叶中光合电子传递反应的发展。

Development of photosynthetic electron transport reactions under the influence of phytohormones and nitrate nutrition in greening cucumber cotyledons.

机构信息

Department of Biosciences, Saurashtra University, 360 005, Rajkot, India.

出版信息

Photosynth Res. 1987 Jan;13(2):159-65. doi: 10.1007/BF00035238.

Abstract

Development of the photosynthetic electron transport system, under the influence of hormones and nitrate-nutrition, in greening cucumber cotyledon was investigated. Both photosystems, PS I measured as DCPIP → MV, and PS II as H2O → pBQ, were significantly promoted by GA and kinetin with kinetin being more effective. PS II/PS I ratio, though increased in control, did not change significantly with GA or kinetin treatment. Other partial reactions (H2O → MV/K3Fe(CN)6/NADP) were also promoted. Addition of KNO3 showed concentration-dependent effects on growth and photosynthetic electron transport reactions (H2O → MV/K3Fe(CN)6/NADP). It is concluded that both hormones and nutritional status influence development of the photosynthetic electron transport system in greening cucumber cotyledons.

摘要

研究了激素和硝酸盐营养对绿色黄瓜子叶光合电子传递系统发育的影响。通过 DCPIP→MV 测量的两个光系统 PS I 和通过 H2O→pBQ 测量的 PS II 均明显受到 GA 和激动素的促进，其中激动素的效果更显著。尽管 PS II/PS I 比值在对照中增加，但 GA 或激动素处理并没有使其发生显著变化。其他部分反应（H2O→MV/K3Fe(CN)6/NADP）也得到促进。添加 KNO3 对生长和光合电子传递反应（H2O→MV/K3Fe(CN)6/NADP）表现出浓度依赖性影响。因此，可以得出结论，激素和营养状况都会影响绿色黄瓜子叶光合电子传递系统的发育。