致病疫霉在中国云南的马铃薯田间形成卵孢子* |
| |
引用本文: | 赵志坚,李成云,王淑芬,隋启君.致病疫霉在中国云南的马铃薯田间形成卵孢子*[J].菌物学报,2001,20(4):578-580. |
| |
作者姓名: | 赵志坚 李成云 王淑芬 隋启君 |
| |
作者单位: | 1. 云南省农业科学院植物保护研究所, 2. 云南省农业科学院生物技术研究所, |
| |
基金项目: | 云南省自然科学基金(2000C0096M)资助项目 |
| |
摘 要: | 由致病疫霉Phytophthora infestans (Mont.)de Bary引起的马铃薯和番茄晚疫病是世界性的作物病害,每年均造成巨大的经济损失和社会影响。致病疫霉是异宗配合的卵菌,有两个已知交配型A1和A2,两个相对交配型互作时可进行有性生殖产生卵孢子( Gallegly & Galindo,1958)。过去许多年一直认为致病疫霉在除墨西哥以外的国家中只存在A1交配型,通过产生孢子囊进行无性繁殖。近年来,由于致病疫霉新致病群体的产生以及全球范围的迁移和替代,A2交配型菌株先后在欧洲、美洲、亚洲和非洲的许多国家被发现。A1、A2两种交配型菌株的同时存在,增…
|
关 键 词: | Potato field oospores the late blight pathogen |
文章编号: | 1007-3515(2001)04-0578-03 |
修稿时间: | 2001年4月26日 |
FORMATION OF OOSPORES OF PHYTOPHTHORA INFESTANS IN NATURAL POTATO FIELD IN YUNNAN PROVINCE OF CHINA |
| |
Authors: | ZHAO Zhi-Jian LI Cheng-Yun WANG Shu-Fen SUI Qi-Jun |
| |
Institution: | ZHAO Zhi-Jian1 LI Cheng-Yun2 WANG Shu-Fen1 SUI Qi-Jun2 |
| |
Abstract: | Oospores of the late blight pathogen Phytophthora infestans and typical morphological characteristics of sexual organs that the amphigynous antheridium adheres tenaciously to the oogonium were observed in potato leaf tissue sampled from natural potato field in Yunnan province. The location, number, color and size of oospores were described. The significance of sexual recombination was briefly discussed. It is firstly reported that sexual reproduction of Phytophthora infestans occurred in natural potato field in China. |
| |
Keywords: | Potato field oospores the late blight pathogen |
本文献已被 CNKI 万方数据 等数据库收录! |
| 点击此处可从《菌物学报》浏览原始摘要信息 |
| 点击此处可从《菌物学报》下载免费的PDF全文 |