矮化砧对酥梨石细胞及相关酶活性的影响  

Effects of Pyrus dwarfing-rootstocks on stone cell and relative enzymes activity of Suli-pear fruit

作　　者：邵嘉鸣[1] 李新凤[2] 张祖维[2] 王景雪[3] 张述义[1] 

机构地区：[1]山西省农业科学院旱地农业研究中心,太原030031 [2]山西农业大学,山西太谷030801 [3]山西大学生命科学学院,太原030006

出　　处：《中国农业大学学报》2015年第5期126-131,共6页Journal of China Agricultural University

基　　金：山西省农业与社会发展科技攻关计划项目(031034;20100311019-2);山西省农业科学院重点科研项目(2012YZD06)

摘　　要：为研究不同梨属矮化砧对酥梨果实内石细胞的影响,以酥梨/K30/杜梨、酥梨/OH×F51/杜梨,酥梨/杜梨的果实为测试材料,在果实生长发育时期,对酥梨果实内与石细胞形成的相关酶类苯丙氨酸氨解氨酶（PAL）、过氧化物酶（POD）、多酚氧化酶（PPO）活性,以及成熟期对酥梨果实内石细胞含量和粒径比进行了测定研究。结果表明：3种梨属矮化砧上的酥梨果实石细胞总含量和石细胞粒径比的排序均为K30。The purpose of this study is to investigate the influence of Pyrus dwarfing-rootstocks varieties on stone cell characteristics of Suli-pear fruit to a theoretical basis for rational utilization of Pyrus dwarfing-rootstocks varietiesin production.Suli-pear/K30/P. betulaefoliabunge,Suli-pear/OH × F51/P betulaefoliabunge,and Suli-pear/P.betulaefoliabunge were used as materials to test the activities of PAL,POD and PPO during fruit development period,and stone cell content,stone cell size ratio in ripe Suli-pear fruits.The data showed that：Among three Pyrusrootstocks,the stone cell content and stone cell size ratio were K30〈 OH×F51〈 P betulaefoliabunge.The PAL,POD and PPO activities displayed a decline trend from 30 to 120days after full-bloom stage.The PAL activity reached the highest at30 day after full-bloom,showed significant difference at 60 day,and was maximally reduced at 90 day,as well as POD and PPO activities in Suli-pear fruits of different Pyrus rootstock.According to the correlation analysis,there were positive correlation between final content of stone cells and the enzymes of three tested pear during various stages.Compared with the Suli-pear/P.betulaefoliabunge,Suli-pear/K30/P.betulaefoliabunge,Suli-pear/OH × F51/P betulaefoliabunge can reduce PAL,POD and PPO activity of Suli-pear fruits in early development stage,thus reduced stone cell content and the stone cell size ratio in mature Suli-pear fruits.In conclusion,Pyrus dwarfing-rootstocks K30 and OH×F51have obvious effect in improving the quality of Suli-pear fruits.

关 键 词：梨属矮化砧木 酥梨 石细胞含量 石细胞粒径比 PAL POD PPO 

分 类 号：S661.2[农业科学—果树学]