寒地超级稻SS酶、ADPG焦磷酸化酶及光合特性与灌浆速率关系研究  

Research of Relationship between Sucrose Synthase,ADP-glucose Pyrophosphorylase & Photosynthetic Characteristics and Grain-filling Rate in Cold Super-rice

作　　者：臧家祥[1] 王敬国[1] 刘化龙[1] 刚爽[1] 高扬[1] 邹德堂[1] 

机构地区：[1]东北农业大学农学院,黑龙江哈尔滨150030

出　　处：《农业现代化研究》2010年第1期105-109,共5页Research of Agricultural Modernization

基　　金：国家科技支撑计划"优质超级稻综合生产技术研究与示范"(编号:2007BAD65B01);东北农业大学创新团队"水稻优异种质资源创新利用及超级稻新品种选育"(编号:CXT001-1-1)

摘　　要：试验对黑龙江省寒地超级稻品种松粳9号的蔗糖合成酶、ADPG焦磷酸化酶、光合特性及其与灌浆速率的关系进行了研究。结果表明:籽粒ADPG焦磷酸化酶活性、蔗糖合成酶活性与灌浆速率极显著正相关,功能叶蔗糖合成酶活性和RuBP羧化酶活性、净光合速率与灌浆速率分别呈显著正相关和极显著正相关,高产寒地超级稻品种松粳9号的酶活性与净光合速率均高于常规品种松粳6号,且差异达极显著水平。将蔗糖合成酶和ADPG焦磷酸化酶、RuBP羧化酶活性、净光合速率的高低作为超级稻品种选育的生理指标是可行的。The relationship between sucrose synthase（SS）, ADP-glucose Pyrophosphorylase （AGPP） and photosynthetic characteristics and the grain-filling rate of Heilongjiang Province super rice Songjing 9 in cold region were investigated. The results showed that： SS activity,AGPP activity of seeds with the filling rate was highly significant positive correlation, SS activity, RuBP carboxylase activity and net photosynthetic rate of functional leaves with the grain-filling rate was significantly positively correlated and highly significant positive correlation, the enzyme activity and net photosynthetic rates of high-yield super rice Songjing 9 in cold region were higher than conventional rice Songjing 6, inter-species differences was extremely significant. It is feasible to regard the level of SS, AGPP, RuBP carboxylase activity and net photosynthetic rate as physiological indicators of super rice breeding.

关 键 词：寒地超级稻 蔗糖合成酶 ADPG焦磷酸化酶 RUBP羧化酶 灌浆速率 

分 类 号：S511[农业科学—作物学] Q55[生物学—生物化学]