| GA_3诱导枇杷无核的组织解剖学观察 |
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| 引用本文： | 邓英毅,杨晓红,李道高,何建,朱华明,吴赴清.GA_3诱导枇杷无核的组织解剖学观察[J].果树学报,2009,26(3). |
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| 作者姓名： | 邓英毅 杨晓红 李道高 何建 朱华明 吴赴清 |
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| 作者单位： | 邓英毅,DENG Ying-yi(西南大学园艺园林学院,重庆,400716;广西大学农学院,南宁,530004);杨晓红,李道高,YANG Xiao-hong,LI Dao-gao(西南大学园艺园林学院,重庆,400716);何建,HE jiang(西南大学园艺园林学院,重庆,400716;四川省农业科学院园艺研究所,成都,610066);朱华明,ZHU Hua-ming(西南大学园艺园林学院,重庆,400716;重庆师范大学旅游学院,重庆,400047);吴赴清,WU Fu-qing(西南大学园艺园林学院,重庆,400716;中国农业大学生物学院,北京,100094)
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| 摘 要： | 为了阐明GA3处理枇杷导致无核的原因,以枇杷品种大五星为材料,采用石蜡切片法和花粉发芽试验等方法分别对花前经GA3处理枇杷花穗后的枇杷胚胎发育过程进行了研究。结果表明,1)枇杷的胚珠为倒生胚珠,双珠被,核型胚乳;2)花前用GA3处理枇杷导致无核的原因主要在于胚乳败育或者珠心退化导致胚退化,由于胚乳败育使胚发育所需要的营养不足,引起合子胚分裂异常,最终胚解体退化。但珠被在初期能够发育,所以形成败育种子(秕子)。
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| 关 键 词： | 枇杷 胚胎发育 胚乳 GA3 无核 花粉 |
Anatomical study on the seedless formation of loquat (Eriobotrya japonica)treated by GA_3 |
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| DENG Ying-yi,YANG Xiao-hong,LI Dao-gao,HE Jiang,ZHU Hua-ming,WU Fu-qing.Anatomical study on the seedless formation of loquat (Eriobotrya japonica)treated by GA_3[J].Journal of Fruit Science,2009,26(3). |
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| Authors: | DENG Ying-yi YANG Xiao-hong LI Dao-gao HE Jiang ZHU Hua-ming WU Fu-qing |
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| Institution: | 1College of Horticulture and Landscape;Southwest University;Chongqing 400716 China;2College of Agriculture;Guangxi University;Nanning 530004 Guangxi;3Horticultural Research Institute;Sichuan Academy of Agricultural Sciences;Chengdu;Sichuan 610066 China;4College of Tourism;Chongqing Normal University;Chongqing 400047 China;5College of Biology;China Agricultural University;Beijing 100094 China |
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| Abstract: | In order to clarify the seedless formation mechanism of the loquat cultivar Dawuxing(Eriobotrya japonica Lindl.cv.Dawuxing) treated with GA3 before flowering,the effects on the embryo development,pollen fertility and seedless were investigated by paraffin wax cut and pollen germination examination etc.The results showed that:(1) the fruit ovule was anat-ropous ovule with double layers integument and nuclear type endosperm;(2) the seedless mainly was caused by embryo abortion induced from endosperm and nucel... |
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| Keywords: | GA3 |
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