嫁接的西瓜果实发育过程中叶和果实蔗糖代谢的一些特性  

Characteristics of the Sugar Metabolism in Leaves and Fruits of Grafted Watermelon during Fruit Development

作　　者：刘慧英[1] 朱祝军[1] 刁明[2] 葛志平 

机构地区：[1]浙江大学蔬菜研究所,杭州310029 [2]石河子大学园艺系,新疆石河子832003 [3]嘉兴市秀洲区农林局,浙江嘉兴314000

出　　处：《植物生理学通讯》2006年第5期835-840,共6页Plant Physiology Communications

基　　金：国家自然科学基金(30360065)

摘　　要：嫁接瓜果实发育过程中,叶内蔗糖含量和干物质积累显著高于自根瓜,自根瓜和嫁接瓜的叶中蔗糖含量与酸性转化酶(AI)、蔗糖磷酸合酶(SPS)活性均呈显著正相关;嫁接瓜果实中蔗糖含量显著低于自根瓜,SPS活性和果实中糖分的跨液泡膜运输能力亦较自根瓜低;自根瓜和嫁接瓜叶的干物质积累与叶中AI和SPS活性、果实AI活性呈显著负相关,与液泡膜H+-ATPase活性呈显著正相关。During fruit development, the dry matter accumulation and sucrose content were markedly higher in leaves of grafted watermelon than those of own-rooted watermelon. There were good positive correlations among the acid invertase （AI） activity, sucrose phosphate synthase （SPS） activity and sucrose content in leaves of grafted and own-rooted watermelon. The sucrose content and SPS activity and sugar trans-membrane transportation capability in the fruits of grafted watermelon were significantly lower than those of own-rooted watermelon. There were negative correlations between AI activities in leaves and fruits, SPS activity and dry matter accumulation in leaves of grafted and own-rooted watermelon. There were good positive correlations between tonoplast H^＋-ATPase activity and dry matter accumulation in fruit of grafted and own-rooted watermelon.

关 键 词：嫁接西瓜 果实发育 叶 果实 糖代谢 

分 类 号：S651[农业科学—果树学]