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.
出处
《植物生理学通讯》
CSCD
北大核心
2006年第5期835-840,共6页
Plant Physiology Communications
基金
国家自然科学基金(30360065)
关键词
嫁接西瓜
果实发育
叶
果实
糖代谢
grafted watermelon
fruit development
leaf
fruit
sucrose metabolism
