中国农业期刊集成服务平台

当前位置: 首页 > 文章 > 苎麻疫霉对棉苗致病力的遗传与变异研究植物病理学报 1998 (4) 331-336

Position: Home > Articles > ON INHERITANCE OF PATHOGENICITY OF PHYTOPHTHORA BOEHMERIAE TO COTTON SEEDLINGS Acta Phytopathologica Sinica 1998 (4) 331-336

苎麻疫霉对棉苗致病力的遗传与变异研究

作者：

高智谋;郑小波;苏恩平;陆家云

单位：

南京农业大学植保系农业部病虫?;南京农业大学植保系农业部病虫监测与治理重点开放实验室;合肥;安徽农业大学植保系

关键词：

苎麻疫霉;棉苗;致病力;遗传

摘要：

以分离自江苏省棉铃疫病病组织的苎麻疫霉（PhytophthoraboehmeriaeSawada）野生型菌株JS－5为亲本，采用菌丝块创伤接种法测定了苎麻疫霉对棉苗致病力在游动孢子无性系和卵孢子后代的遗传。结果表明，苎麻疫霉对棉苗的致病力在单游动孢子无性系连续两代稳定遗传，而在单卵孢第1代（OG1）则发生连续性变异。从OG1中选致病力强、弱2个单卵孢株为亲本，分别建立单卵孢第2代（OG2）和单游动孢子无性系，并测定其对棉苗的致病力。结果为上述2个单卵孢株的游动孢子后代对棉苗的致病力均与其各自亲本相似，而在它们的单卵孢株群体（即OG2）中对棉苗的致病力继续发生复杂的连续性变异。上述结果表明，苎麻疫霉对棉苗的致病力可能由细胞核杂合多基因控制。

译名：

ON INHERITANCE OF PATHOGENICITY OF PHYTOPHTHORA BOEHMERIAE TO COTTON SEEDLINGS

作者：

Gao Zhimou;Zheng Xiaobo; Su Enping and Lu Jiayun (The Key Laboratory of Mornitoring and Management of Plant Diseases and Insects of Chinese Ministry of Agriculture,Department of Plant Protection, Nanjing Agricultural University, Nanjing 210095)

关键词：

Phytophthora boehmeriae Cotton seedling Pathogenicity Inheritance

摘要：

The inheritance of pathogenicity of Phytophthora boehmeriae Sawada to cotton seedlings in zoospore and oospore progenies was studled. The single we zoospore isolate JS- 5 ZG0 from a wild - type isolate JS-5 of P. boehmeriae obtained from cotton boll rot tissue in Jiangsu province was selected as the parent isolate, from which the asexual and sexual monospore progenies were established. The pathogenicity was evaluated by the diameters of lesions on the wounded leaves of cotton seedllngs by culture block 1noculation. The results indicated that the pathogenicity of P. boehmeriae to cotton seeling leaves was stably inherited in two successive zoospore progenies but showed obviously variation in the first single - oospore generation (OG1). One strong and another weak pathogenic slngle -oospore cultures from OG1 were selected as parents to further establlsh second single - oospore generation (OG2). Successive variat1ons of the pathogenlcity were also observed in the both OG2 populations. However, the pathogenlcity showed no significant variation among the single-zoospore populations from the both selected single oospore cultures of OG1. The results indicated that the pathogenicity of P. boehmeriae to cotton seedlings might be controlled by nuclear heterozygous polygenes and suggested that the sexual reproduction played an important part in the differentiation of pathogenicity in the pathgenic fungus.

相似文章

苎麻疫霉对几种杀菌剂的离体敏感性测定 [陈方新, 齐永霞, 吴红星, 刘川琴, 罗亮, 高智谋] 中国农学通报 2006,22 (4) 375-377
诱导疫霉菌产生游动孢子囊液体培养基的研制 [陈方新, 齐永霞, 高智谋, 潘月敏, 曹君, 徐仁玉] 植物保护 2005,31 (2) 34-37
苎麻疫霉抗甲霜灵突变株对棉苗的致病力及其遗传 [陈方新, 齐永霞, 高智谋, 吴红星, 汪爱娥] 植物保护 2006,32 (1) 44-47
苎麻疫霉生物学性状遗传与变异研究 [高智谋, 郑小波, 陆家云] 吉林农业大学学报 1998 (1) 105
棉铃疫病人工接种方法优化及应用 [鹿秀云, 商俊燕, 邵美琪, 谢雪娇, 郭庆港, 李社增, 马平] 棉花学报 2021,33 (1) 1-12
棉铃疫病菌(Phytophthora boeh meriae)对甲霜灵的抗性遗传研究 [陈方新, 高智谋, 齐永霞, 吴红星, 吴向辉] 植物病理学报 2004,34 (4) 296-301
棉花烂铃病的发生、品种抗病性及主要病原菌致病力分析 [李社增, 鹿秀云, 郝俊杰, 赵鸣, 年冠臻, 郭庆港, 张晓云, 马平] 植物病理学报 2017 (6) 824-831
棉铃疫病生防细菌筛选、鉴定及制剂防治效果 [鹿秀云, 李宝庆, 张晓云, 郭庆港, 马平, 李社增] 植物保护学报 2019 (4) 805-815
苎麻疫霉卵孢子萌发研究 [郑小波, 王团老, 陆家云] 南京农业大学学报 1993,16 (1) 50-54
苎麻疫霉对甲霜灵抗性的遗传研究 [高智谋, 郑小波] 南京农业大学学报 1997,020 (3) 54-59

导出引用

计量

文章访问数: 9

HTML全文浏览量: 0

PDF下载量: 0

苎麻疫霉对棉苗致病力的遗传与变异研究

相似文章

所属期刊

植物病理学报

推荐期刊

南京农业大学学报

吉林农业大学学报