高温对苹果花粉在花柱内萌发和生长的影响  

Effects of High Temperature on Germination and Growth of Apple Pollen in Style

作　　者：徐臣善[1,2] 徐爱红[2,3] 

机构地区：[1]德州学院生态与园林建筑学院,山东德州253023 [2]山东农业大学园艺科学与工程学院,山东泰安271018 [3]山东华宇职业技术学院,山东德州253034

出　　处：《植物生理学报》2014年第1期51-55,共5页Plant Physiology Journal

基　　金：国家"十二五"科技支撑计划项目(2011BAD12B02);德州学院人才引进项目(402115)

摘　　要：以‘长富2号’红富士苹果为母本,‘红星’苹果为父本,研究35℃高温对苹果花粉在花柱内萌发和生长的影响。结果表明:温度影响花粉在柱头和花柱内的萌发及生长,与对照相比,高温促进花粉在柱头表面快速萌发,并加速花粉管在花柱内的伸长生长,但是在授粉72 h后,高温处理下培养的花粉管形态出现花粉管变粗、弯曲并有瘤状小结的异化现象,同时,花柱发生褐变,并产生胼胝质,终导致花粉管不能进入胚珠完成受精。In order to study effects of high temperature （35 ℃） on germination and growth of pollen tube in style, Red Fuji apple （Malus domestica cv. Red Fuji, ＇Nagafu No.2＇） used as female in the experiment was pollinated with ＇Starking＇ apple （M. domestica cv. ＇Starking＇） pollen. The results showed that temperature affected pollen germination on stigma and growth in style. Compared with control, high temperature accelerated the pollen germination on stigma and tube growth in style. Whereas, at 72 h after pollination, the pollen tube cultivated under high temperature was unusual, being thick and curved, and having nodulation at the bottom, and meanwhile, the style cultivated under high temperature became browning and produced callose, which caused the ceases of tube growth and fertilization in ovule.

关 键 词：苹果 温度 花粉 花粉管 花柱 

分 类 号：S661.1[农业科学—果树学]