Ultrastructural studies on megasporogenesis in Triticum aestivum L.

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	Ultrastructural studies on megasporogenesis in Triticum aestivum L.
	Li, L. ; Ji, C. ; You, R.
刊名	北京大学学报自然科学版
	2001
英文摘要	Ultrastructural changes of the megasporogenesis of Triticum aestivum L were studied. During the meiotic process of megasporocyte, the ribosome population diminished greatly in prophase I and restored in metaphase I; plastids and mitochondria turned unclear (dedifferentiation) in prophase I and recovered their normal structures (redifferentiation) in metaphase I. All these proved that cytoplasmic reorganization took place during the megasporogenesis of Triticum aestivum. It was also found that the nuclear envelope disappeared earlier at the micropylar end than at the chalazal end. The speed of the programmed cell death were different in three nonfunctional megaspores at the micropylar end and their relationships with the neighboring cells were also different. The biological significance was discussed about these phenomenon.; EI; 0; 4; 444-453; 37
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/409815]
专题	生命科学学院
推荐引用方式 GB/T 7714	Li, L.,Ji, C.,You, R.. Ultrastructural studies on megasporogenesis in Triticum aestivum L.[J]. 北京大学学报自然科学版,2001.
APA	Li, L.,Ji, C.,&You, R..(2001).Ultrastructural studies on megasporogenesis in Triticum aestivum L..北京大学学报自然科学版.
MLA	Li, L.,et al."Ultrastructural studies on megasporogenesis in Triticum aestivum L.".北京大学学报自然科学版 (2001).