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砧板柚花粉发育过程外壁糖蛋白形成的透射电镜分析
张杏辉; 李楠; 薛妙男;   
1.广西师范大学!桂林;2.5410054;3.541004
摘要:
采用细胞化学技术,经钉红对砧板袖几个不同发育阶段的花粉进行染色显示,用透射电镜对花粉外壁糖蛋白进行了细胞化学定位观察,探讨了花粉发育过程中外壁糖蛋白的发生时期及输送到花粉壁的过程。研究结果表明,花粉外壁糖蛋白在单核花粉时期由绒毡层细胞产生,并被分泌到药室内,输送到花粉外壁及萌发孔周围积累和贮存,整个过程延续到花粉成熟.
关键词:  砧板袖  花粉  糖蛋白  
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