雄性不育和可育亚麻的生殖期形态学与细胞学比较  

The Comparison on Morphology and Cytology in Reproductive Period between Male Sterility Flax and Fertile Flax

作　　者：伊六喜[1] 斯钦巴特尔[2] 张辉[2] 贾霄云[2] 高风云[2] 张立华 任龙梅[2] 

机构地区：[1]内蒙古农业大学农学院,内蒙古呼和浩特010019 [2]内蒙古农牧业科学院,内蒙古呼和浩特010031

出　　处：《内蒙古农业科技》2011年第6期21-25,共5页Inner Mongolia Agricultural Science and Technology

基　　金：国家自然科学基金(30860148;31060197)

摘　　要：为了阐明显性雄性核不育亚麻不育株花粉败育的时期及细胞学特点,以雄性不育亚麻和雄性可育亚麻花蕾为材料,采用常规的石蜡切片方法,对花蕾和花粉发育过程进行了解剖学观察研究。结果表明:亚麻雄性不育株和雄性可育株在开花期其花药和花粉的形态学与细胞学差异非常明显。该研究将花药和花粉败育从四分体时期的绒毡层细胞与中层脱离开始划分为4个阶段:败育初期,绒毡层与中层分离;败育中期,小孢子发育停滞;败育后期,绒毡层与小孢子粘连后逐渐消失;败育终期花药干瘪,不能形成花粉。To clarify the period and the cytological characteristics of pollen abortion in the anthor of male sterile plant segregated from dominant nuclear male sterile flax line,the conventional paraffin methods were applied to observed the comparative anatomy of the flower bud and pollen development,using fertile and sterile flower buds as materials.The results showed that there existed obvious differences in mophology and cytology of sterile and fertile flower buds and pollen development.In this paper,from the beginning of seperation of the tapetal and middle-level,the anthor abnormal development and pollen abortion was devided into four phases,including seperation between the tapetal and middle-level;stagnation of microspore development;adhesion between tapetal and microspores and its gradual disappearance;and shrivel of anthor with no pollen.

关 键 词：亚麻 雄性不育 雄性可育 细胞学 形态学 

分 类 号：S563.2[农业科学—作物学]