玉米种子脂肪氧化酶LOX-3缺失与耐贮性研究  

Lipoxygenase-3 Deficiency and Storability of Seeds in Maize

作　　者：程昕昕[1] 耿广汉[1] 李志成[1] 刘正[1] 

机构地区：[1]安徽科技学院,安徽凤阳233100

出　　处：《作物杂志》2011年第3期34-37,共4页Crops

基　　金：安徽教育厅自然科学资金项目(KJ2010B297);安徽省自然基金资金项目(2008b207);安徽省优秀青年科技基金项目(10040606Y02)

摘　　要：以脂肪氧化酶(LOX-3)缺失纯合体云油199-18和NT6621、LOX-3不缺失纯合体061842、LOX-3不缺失杂合体064021以及该4个亲本组配的4个组合为试验材料,在自然越夏条件下进行种子耐贮性的遗传、生理研究。结果表明:以LOX-3缺失体云油199-18、NT6621和LOX-3不缺失体061842、064021的LOX-3活性差异达显著水平;在组配的4个F1杂交后代中LOX-3缺失是独立遗传并且受隐性基因控制,结合电导率、丙二醛含量和脱氢酶活性等生理指标进一步证明LOX-3缺失种质相对较耐贮藏。Seed storability in maize under natural conditions by using Yunyou 199-18 and NT6621 without LOX-3,061842 and 064021 with LOX-3,and their hybrids were investigated.The results showed that the LOX-3 activity was significantly different between Yunyou 199-18 and NT6621 without LOX-3 and 061842 and 064021 with LOX-3.LOX-3 was controlled by Mendelian recessive gene in the F1 hybrids.The germplasm of LOX-3 deficiency were relatively storable in terms of conductivity and MDA content,dehydrogenase activity and other physiological indicators.

关 键 词：玉米 耐贮性 脂肪氧化酶 

分 类 号：S513[农业科学—作物学]