绿豆幼苗发育初期Pchlide光还原的研究

STUDY ON PCHLIDE PHOTOREDUCTION DURING EARLY DEVELOPMENT OF SEEDLING OF PHASEOLUS RADIATUS L.

为了探讨被子植物幼苗发育初期Pchlide还原机制,本文采用不同波长的光照和抗生素处理,分析了光照诱导绿豆黄花幼苗发育初期Pchlide和Chlide的变化以及抗生素对Pchlide和Chlide的变化的影响。结果表明:绿豆黄化幼苗在光照最初0.5 h,单色光有利于Pchlide的还原和新Pchlide的生物合成;光照2 h后,单色光不利于Chlide的酯化;CH明显抑制绿豆幼苗子叶Chlide的酯化速度,说明Chlide的酯化是受细胞核基因控制。

In order to make clear the Pchlide reduction mechanisms of early development of plant seedling, the changes of Pchlide and Chlide during early development of the seedling of Phaseolus radiatus under different treatments using light and antibiotics were analyzed. Results showed that the monochromatic lights were advantageous to the Pchlide reduction and biosynthesis for etiolation seedling of Phaseolus radlatus in illumination for 05 h at first. The monochromatic light did not favor for Chlide esterification after illumination for 2 h. Chlide esterification was controlled by the cell nucleus gene, because Chlide estefification rate was restrained to the seedling leaf of P. radiatus.