Ultrastructural observation on chloroplast of the thermo-sensitive green-yellow banded leaf mutant in rice (Oryza sativa ssp. indica)
文献类型: 外文期刊
第一作者: Wang, YZ
作者: Wang, YZ;Liu, YS;Sun, JS;Xie, R
作者机构:
关键词: rice;thermo-sensitive mutant;green-yellow hand;chloroplast;ultrastructure
期刊名称:ACTA BOTANICA SINICA ( 影响因子:0.599; )
ISSN: 0577-7496
年卷期: 1999 年 41 卷 1 期
页码:
收录情况: SCI
摘要: The green-yellow bands interrupted discolorated transverse bands on the leaves of the thermo-sensitive rice line 1103s (Oryza sativa ssp. indica) was induced by cold shuck and the change of leaf color coincided with the change of chlorophyll contents. Ultrastructural observation revealed that the chloroplast structure in the yellow part degenerated, i.e., the number of stocks in granum abnormally decreased, thylakoid system was disintegrated and replaced by few single thylakoid, and then the whole structure of some chloroplast became vesicle-like structure with high electronic density. Nonetheless, in the green zone of the green-yellow banded leaf, there were slight decrease in the number granum thylakoids, disordered grana arrangement in the chloroplast, and aggregation of osmiophile globule. However, it was found that these structural alternations were reversable in the process of recovery of the yellow part of the leaves into green, and the chloroplast structure renewed normally. It might be concluded that the character of green- yellow bands induced by cold shock was consequent upon a reverse process of degeneration and regeneration.
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