向日葵应对列当寄生的生理响应差异性研究  

Study on the Difference of Physiological Response of Sunflower to Broomrape Parasitism

作　　者：邸娜 郑喜清 王靖 韩海军 李娜 Di Na;Zheng Xiqing;Wang Jing;Han Haijun;Li Na(Department of Agriculture,Hetao College,Bayannur 015000,Inner Mongolia,China;Inner Mongolia Bayannur City Modern Agriculture and Animal Husbandry Development Center,Bayannur 015000,Inner Mongolia,China)

机构地区：[1]河套学院农学系,内蒙古巴彦淖尔015000 [2]内蒙古巴彦淖尔市现代农牧业事业发展中心,内蒙古巴彦淖尔015000

出　　处：《作物杂志》2025年第2期123-127,共5页Crops

基　　金：内蒙古自治区高等学校科学研究项目(NJZY21186);河套学院科学研究项目(HYZY202003)。

摘　　要：向日葵列当已成为限制向日葵产业健康发展的关键问题。以不同列当抗性的向日葵幼苗为试验材料,测定列当寄生条件下向日葵H_(2)O_(2)和丙二醛(MDA)含量以及过氧化氢酶(CAT)、过氧化物酶(POD)、超氧化物歧化酶(SOD)的活性,探明不同列当抗性向日葵品种应对列当侵染时的响应差异。结果表明,列当寄生使向日葵幼苗体内的H_(2)O_(2)和MDA含量均提高,且感列当向日葵品种(3638C)的增加幅度大于耐列当品种(SH363-M)和抗列当品种(TP-3313),活性氧胁迫更严重;随着列当寄生时间延长,CAT、POD、SOD活性均呈现先增加后降低趋势,且酶活性的增加幅度整体表现为TP-3313>SH363-M>3638C。At present,Orobanche cumana Wallr.has become a key issue restricting the healthy development of sunflower industry.Using sunflower varieties with different resistance to broomrape as test materials,the contents of H_(2)O_(2),malondialdehyde(MDA)and the activitie of enzymes including catalase(CAT),peroxidase(POD)and superoxide dismutase(SOD)were determined to identify the difference resistance level of different sunflower varieties to respond broomrapes infecting.The results showed that the contents of H_(2)O_(2)and MDA were raised in sunflower seedlings infected with broomrapes,the increase of sensitive variety(3638C)was greater than those of tolerant variety(SH363-M)and resistant variety(TP-3313),and the reactive oxygen stress was even more severe.With the extension of parasitic time,CAT,POD and SOD activities showed a trend of increasing first and then decreasing,and the overall increase range of enzyme activity was TP-3313>SH363-M>3638C.

关 键 词：向日葵 向日葵列当 H_(2)O_(2) MDA 抗氧化酶活性 

分 类 号：S435.655[农业科学—农业昆虫与害虫防治]