黑麦花粉诱导小麦孤雌生殖的细胞学研究  

Cytology of Wheat Parthenogenesis Induced by Pollination with Rey Pollen

作　　者：董安书[1] 陶少武[1] 朱建楚[1] 

机构地区：[1]西北农业大学农学系

出　　处：《西北农业大学学报》1996年第2期21-24,共4页Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)

摘　　要：观察ＡＲ７７黑麦花粉诱导［８４Ｇ６×７９（ｌＢ）８－８］Ｆ１植株的假受精行为，结果表明：①大量花粉管物质及精子停留在卵细胞外，不能诱发卵细胞单性分裂；②较大的精子进入卵核，靠近或接触核仁且不与核仁融合，对卵细胞单性分裂有明显的诱发作用；③当卵核被诱发启动分裂，其极核中的精子可能与其融合形成初生胚乳核并继续分裂，也可能以雄性核仁的状态继续停留在极核中。Pseudogamy of Fl hybrid plants of［84G6×79（1B）8-8］induced by rey pollen of AR77 were observed,the results indicated that:l．Large number of matter in pollen tubes and sperma stayed outside egg cells could not induce partheno-division in egg nucleus；2．Bigger sperms entered into egg nucleus close to or contact the nucleolus，without fusing with it，which had an abviotis effect on inducing parthene-division in egg cell nucleus；3．When egg nucleus had been induced to division，with which sperms in polar nuclei of the same embryo could be fused to form a primary endosperm nucleus and continue the division,or could be stopped in the polar,nuclei as male nucleolus.

关 键 词：黑麦花粉 小麦 育种 孤雌生殖 细胞学 

分 类 号：S512.103.5[农业科学—作物学]