枇杷叶片气孔保卫细胞叶绿体数目分析  

Number Analysis of the Chloroplast of Stoma Guard Cell in Loquat Leaves

作　　者：王化坤[1] 吴松芹[2] 郄红丽[1] 张晓莹[3] 高艾萍[2] 孙莉[2] 

机构地区：[1]江苏省太湖常绿果树技术推广中心,江苏苏州215107 [2]苏州农业职业技术学院,江苏苏州215008 [3]南京农业大学园艺学院,江苏南京210095

出　　处：《安徽农业科学》2011年第35期21602-21603,21669,共3页Journal of Anhui Agricultural Sciences

基　　金：江苏省农业自主创新项目(cx(11)1014);苏州市科技局农业科技攻关项目(SNG0907)

摘　　要：[目的]研究枇杷叶片保卫细胞的叶绿体数目差异,探讨其变化规律。[方法]取43份枇杷资源嫩叶进行处理,在20倍显微镜下进行统计,随机选择50个保卫细胞计算叶绿体数目。[结果]枇杷叶片保卫细胞叶绿体数目在11～17,平均为13.19个,品种间差异大。不同品种叶绿体数目变异幅度不同,在9～14,仅栎叶枇杷的叶绿体数目大于16。[结论]栎叶枇杷可能是多倍体,这可为枇杷资源的倍性鉴定提供参考。[Objective] To study the change of the chloroplast number of stoma guard cell in loquat leaves,and discuss its change law.[Method] The tender leaves of 43 varieties and resources of loquat were analyzed.The numbers of chloroplast of 50 random stoma guard cells were analyzed under 20 times optical microscope.[Result] The different of the average number among the varieties chloroplast was big.The range was in 11-17,for an average of 13.19.The variation range in varieties was between 9 to 14.Eriobotrya prinoides was the only one,whose average number of chloroplast was more than 16.[Conclusion] Eriobotrya prinoides maybe a polyploid variety.This study provides a reference for identification of loquat ploidy.

关 键 词：枇杷 保卫细胞 叶绿体 数目分析 

分 类 号：S132[农业科学—农业基础科学]