芹菜花粉母细胞减数分裂观察  

Observation on Meiosis of Pollen Mother Cells in Apium graveolens

作　　者：赵冬[1] 张蜀宁[1] 张宇[1] 李俊星[1] 刘惠吉[1] 

机构地区：[1]南京农业大学园艺学院农业部南方蔬菜遗传改良重点开放实验室,江苏南京210095

出　　处：《江西农业学报》2011年第4期70-71,80,共3页Acta Agriculturae Jiangxi

基　　金：江苏省自然科学基金项目(BK2008341)

摘　　要：以中国芹品种铁杆芹花蕾为材料,采用改良卡宝染色压片法对芹菜花粉母细胞减数分裂进行了细胞学研究。结果表明:花粉母细胞减数分裂为胞质同时型,四分体为正四面体型或十字交叉型,中期Ⅰ和中期Ⅱ细胞可见赤道板外染色体,后期Ⅰ和后期Ⅱ部分细胞出现染色体桥及落后染色体。The flower buds of celery(Apium graveolens) were used to study the mitosis in pollen mother cells with enzyme-dye-squash technique.The results showed that the pollen mother cells carried on their meiosis and cytokinesis simultaneously and their tetrads were tetrahedral or decussate type;at metaphases Ⅰ and Ⅱ there showed a small number of chromosomes scattered outside their equatorial plate;at anaphases Ⅰ and Ⅱ there appeared chromosome bridges and lagged chromosomes in some pollen mother cells.

关 键 词：芹菜 花粉母细胞 减数分裂 

分 类 号：S636.3[农业科学—蔬菜学]