不同硫苷特性对甘蓝型油菜MDA含量及相关酶活性的影响  

Effects of Different Glucosinolate Traits on MDA Content and Related Enzyme Activities of Rapes

作　　者：宋志荣[1,2] 官春云[1] 

机构地区：[1]湖南农业大学油料所,湖南长沙410128 [2]湖南省农业技术推广总站,湖南长沙410005

出　　处：《作物杂志》2009年第4期13-16,共4页Crops

基　　金：国家"948"项目(2006-G04)

摘　　要：为探寻油菜硫苷特性与生理特性的关系,对967H、967L以及正交F1和反交F1植株的MDA(丙二醛)含量、SOD(超氧化物歧化酶)、POD(过氧化物酶)和CAT(过氧化氢酶)活性生理指标进行分析。结果表明,在整个生育期间,不同硫苷特性的油菜品系MDA含量、质膜相对透性一直保持增加,而SOD、POD和CAT活性变化规律都是先升高后降低。高硫苷材料开花期和成熟期的质膜相对透性,以及后3个生育期的MDA含量极显著低于低硫苷材料;高硫苷材料整个生育期的SOD活性,后3个生育期的POD活性,以及抽薹期和开花期的CAT活性极显著高于低硫苷材料;高硫苷材料苗期的POD活性,以及苗期和成熟期的CAT活性显著高于低硫苷材料。油菜硫苷含量与质膜相对透性、MDA含量呈显著负相关,与POD、CAT活性呈显著正相关。In order to explore the relation of glucosinolate trait and physiological characteristics in rapes, the paper analyzed MDA content, SOD, POD and CAT activities with 967H, 967L, F1 and RF1 plants as materials. The results indicated that the relative permeability of plaslemma and MDA content in different glucosinolate lines always increased during all growth stages, and the SOD, POD and CAT activities kept decreasing after increasing. The relative permeability of plaslemma at blooming and maturity stages and MDA content at later three growth stages were very significantly less in high glucosinolate lines than in the low ones. The SOD activity in all growth stages, POD activity at later three growth stages and CAT activity at stem elongation and blooming stages were very significantly greater in high glucosinolate lines than in the low ones. The POD activity at seedling stage and CAT activity at seedling and maturity stages were significantly greater in high glucosinolate lines than in the low ones. The glucosinolate content had positive correlation with the relative permeability of plaslemma and MDA content, and negative correlation with POD and CAT activities.

关 键 词：甘蓝型油菜 硫苷性状 生理特性 

分 类 号：S565.4[农业科学—作物学] X173[环境科学与工程—环境科学]