烟草叶片外植体脱分化与再分化过程中FtsZ蛋白的表达(简报)  

THE EXPRESSION LEVEL OF FTSZ PROTEIN DRUING THE DEDIFFERENTIATION AND REDIFFERENTIATION OF EXPLANTS OF NICOTIANA TOBACUM

作　　者：雷启义[1,2] 赵奂[2] 张江丽 胡勇[2] 刘祥林[2] 

机构地区：[1]凯里学院生物科学技术系,贵州凯里556000 [2]首都师范大学生命科学学院,北京100037 [3]廊坊师范大学生物系,河北廊坊065000

出　　处：《分子细胞生物学报》2009年第3期244-248,共5页Journal of Molecular Cell Biology

基　　金：国家自然科学基金(批准号:30470879;30500288);北京市自然科学基金(批准号:5032003)资助项目

摘　　要：在植物叶肉细胞的脱分化、再分化过程中伴随着叶绿体与质体相互转化的过程。已高度分化的叶肉细胞脱分化为分生状态细胞时．其中的原质体主要由叶绿体出芽生殖产生．偶尔可以看到某些叶绿体分裂或分裂与出芽同时出现的情况。此外，叶绿体在出芽产生原质体的同时自身逐渐被巨大的淀粉粒所充满．从而转变为淀粉体。The explants cells of Nicotiana Tobacum undergo the process of dedifferentiation and redifferentiation under the treatment of phytohormone with different conleutrations. By monitoring the change of plastids and the expression of FtsZ protein, which functions in the progress of chloroplast division, we show that chloroplasts turn into amyloid and hypostasis when explants dedifferent and at the same time the expression of FtsZ proteins decreases. When explants redifferent and bud, hypostasis turn back into the chloroplast and the expression of FtsZ protein restores. The concurrence of fluctuant expression of FtsZ protein and the progress of bud differentiation and formation of chloroplast play essential roles in the growth of green plant.

关 键 词：FtsZ蛋白 细胞分化 烟草 质体 

分 类 号：S572[农业科学—烟草工业]