文献类型：期刊文章

作　　者：杨爱珍[1,2] 张志毅[1] 孟海玲[3] 王一鸣[3] 李楠[4] 关伟[5] 王有年[3]

机构地区：[1]北京林业大学,北京100083 [2]北京农学院生物技术系,北京102206 [3]农业应用新技术北京市重点实验室,北京102206 [4]中国农业大学农学与生物技术学院,北京100094 [5]北京市平谷区人民政府果品办公室,北京101200

出　　处：《林业科学》

基　　金：国家基金资助项目(30872029);北京市自然科学基金重点项目(6071001);北京市属高校人才强教深化计划资助项目(PHR20090516;PHR200906134);北京农学院青年基金(9997116087)

年　　份：2009

卷　　号：45

期　　号：5

起止页码：143-147

语　　种：中文

收录情况：AJ、BDHX、BDHX2008、CAB、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2011_2012、EI、IC、JST、PROQUEST、RCCSE、SCOPUS、WOS、ZGKJHX、ZR、核心刊

摘　　要：The sorbitol,fructose and glucose contents and the changes in activities of sorbitol oxidase (SOX),sorbitol dehydrogenase (SDH),which are the enzymes participated in sorbitol metabolism,were investigated respectively in the endocarp,mesocarp,leaf and phloem during the development of fruits of ’Jingyu’and ’Okubao’ peach. The results demonstrated that the pattems of sugar accumulation were analogous in the two varieties. In addition,sorbitol content in leaf was the highest in leaf,followed by that in phloem,and then in pericarp. The contents of glucose and fructose had obvious diversity in disparate parts. At the same time,the changes of SDH and SOX activities had same trend in the two varieties,with a big wave in fruit,and relative unchanged over time in leaf and phloem. Moreover,the testing value of every index was close to zero in endocarp around the 60 th day or so after anthesis,which suggested that the basic metabolism was stagnated. However,the sorbitol metabolism in mesocarp increased sharply,which reflected it came into a new development stage.

关 键 词：桃  果实发育 山梨醇 酶活性

分 类 号：S662.1]