安徽省烟草黑胫病菌的交配型及其地理分布研究  

Mating types and distribution of Phytophthora nicotianae var.nicotianae in Anhui

作　　者：马国胜[1] 高智谋[1] 

机构地区：[1]安徽农业大学植物保护学院

出　　处：《植物病理学报》2006年第6期566-568,共3页Acta Phytopathologica Sinica

基　　金：安徽省高校学科拔尖人才基金(200322);江苏省高校自然科学研究计划(05KJD210197);江苏省"青蓝工程"资助项目(苏教2005-12)

摘　　要：Total 69 isolates of Phytophthora nicotianae var. nicotianae were isolated and identified from tobacco black shank samples collected from different areas of Anhui province,and mating types of the oomycete were investigated by the method of partnership culture in vitro on L-tryptophan medium with β-sitosterol.The results showed that A2 mating type was the predominant in isolates of P.nicotianae var.nicotianae,next was A0 mating type,A1 and other mating types were not observed.It was suggested that sexual reproduction of P.nicotianae var.nicotianae might not take place frequently,and Anhui province might not be the original center of P.nicotianae var.nicotianae.The results indicated further that mating type geographical distribution of P.nicotianae var.nicotianae in Anhui province was in line with that in China.In addition,the significance of the test results and the possible reason for A1 mating type being absent were discussed.Total 69 isolates of Phytophthora nicotianae var. nicotianae were isolated and identified from tobacco black shank samples collected from different areas of Anhui province, and mating types of the oomycete were investigated by the method of partnership culture in vitro on L-tryptophan medium with β-sitosterol. The results showed that A2 mating type was the predominant in isolates of P. nicotianae var. nicotianae, next was A0 mating type, A1 and other mating types were not observed. It was suggested that sexual reproduction of P. nicotianae var. nicotianae might not take place frequently, and Anhui province might not be the original center of P. nicotianae var. nicotianae. The results indicated further that mating type geographical distribution of P. nicotianae var. nicotianae in Anhui province was in line with that in China. In addition, the significance of the test results and the possible reason for A1 mating type being absent were discussed.

关 键 词：烟草黑胫病菌 地理分布 交配型 烟草生产 烟草疫霉 寄生疫霉 品质影响 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]