当前位置: 首页 > 文章 > 稻田雨久花对苄嘧磺隆的抗药性 植物保护学报 2009,36 (4) 354-358
Position: Home > Articles > Resistant Monochoria korsakowii biotypes to bensulfuron-methyl and their acetolactate synthase sensitivity Journal of Plant Protection 2009,36 (4) 354-358

稻田雨久花对苄嘧磺隆的抗药性

作  者:
卢宗志;张朝贤;傅俊范;李贵军
单  位:
吉林省农业科学院植物保护研究所;中国农业科学院植物保护研究所;沈阳农业大学植物保护学院
关键词:
雨久花;苄嘧磺隆;乙酰乳酸合成酶;抗药性
摘  要:
为明确吉林省柳河和德惠水稻产区雨久花对苄嘧磺隆的抗药性,采用盆栽法测定了雨久花对苄嘧磺隆的抗性水平,并分别测定了各生物型雨久花乙酰乳酸合成酶(ALS)对苄嘧磺隆的敏感性。结果显示,苄嘧磺隆对柳河抗、感雨久花生物型的抑制中剂量(GR50)分别为91.81和7.76g/hm2,抗性指数为13.6;对德惠抗、感雨久花生物型的GR50分别为50.46和8.41g/hm2,抗性指数为6.0。离体条件下,苄嘧磺隆对柳河抗、感雨久花ALS活力的抑制中浓度(IC50)分别为15036.3和237.2nmol/L,抗性指数达63.4;对德惠抗、感雨久花ALS活力的IC50分别为10756.2和396.8nmol/L,抗性指数为27.1。表明两地稻田雨久花均对苄嘧磺隆产生了抗药性,而其体内ALS敏感性降低是产生抗药性的原因之一。
译  名:
Resistant Monochoria korsakowii biotypes to bensulfuron-methyl and their acetolactate synthase sensitivity
作  者:
Lu Zongzhi1,2,3 Zhang Chaoxian2 Fu Junfan1 Li Guijun3(1.College of Plant Protection,Shenyang Agricultural University,Shenyang 110161,Liaoning Province,China;2.Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China;3.Institute of Plant Protection,Jilin Academy of Agricultural Sciences,Gongzhuling 136100,Jilin Province,China)
关键词:
Monochoria korsakowii;bensulfuron-methyl;acetolactate synthase;resistance
摘  要:
In order to evaluate the resistance of Monochoria korsakowii to bensulfuron-methyl in rice grown regions,Liuhe and Dehui,in Jilin Province,4 biotypes of Monochoria korsakowii were collected. Pot experiments and enzyme assay were employed to detect the resistance. Pot experiments showed that the GR50 (herbicide dose required for 50% reduction of shoot dry weight) of Liuhe resistant (R) and susceptible (S) biotypes to bensulfuron-metyl were 91.81 and 7.76 g/hm2,respectively,with resistance index (RI) 13.6. Meanwhile,the GR50 for Dehui R and S biotypes were 50.46 and 8.41 g/hm2,respectively,with RI 6.0. In vitro,the IC50 (herbicide concentration required for 50% inhibition) of ALS specific activity in Liuhe R and S biotypes to bensulfuron-methyl were 15 036.3 and 237.2 nmol/L,respectively,with RI 63.4. The IC50 for Dehui R and S biotypes were 10756.2 and 396.8 nmol/L,respectively,with RI 27.1. The results indicated that the M.korsakowii in Liuhe and Dehui had evaluated resistance to bensulfuron-methyl and the decreased ALS sensitivity was one of causes for the resistance of M.korsakowii to the herbicide.

相似文章

计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊