西北地区马铃薯软腐病和黑胫病致病菌鉴定及特性分析(英文)
发布时间:2022-02-10 02:23
西北地区是我国马铃薯的重要产区,为了鉴定来自青海、甘肃、宁夏、陕西和内蒙古自治区的马铃薯软腐和黑胫致病菌,利用16S rDNA序列对来自中国5个省(自治区)的48株马铃薯致病菌株和28株参比菌株进行系统发育分析。基于菌株的形态学特性、培养性状和生理生化特性、16S rDNA序列以及特殊基因序列分析进行鉴定,利用块茎接种法测定不同菌株之间的致病性差异。pel特异性引物表明,48株细菌均具有果胶溶解特性。其中16个菌株为胡萝卜果胶杆菌胡萝卜亚种(Pectobacterium carotovorum subsp.carotovorum),频数为31.25%,30个菌株为黑腐果胶杆菌(Pectobacterium atrosepticum),频数为64.50%。16S rRNA基因序列的系统发育分析表明,Pectobacterium carotovorum subsp.carotovorum与Pectobacterium atrosepticum分别与其他Pcc和Pa菌株聚集成明显的类群,自举支持值分别为97%和99%。致病性测定显示不同分离菌株浸渍块茎的水平不同。分离的Pcc和Pa菌株的块茎...
【文章来源】:中国农业科技导报. 2020,22(07)北大核心CSCD
【文章页数】:11 页
【文章目录】:
1 Materials and methods
1.1 Bacterial strains, media, isolation, mainten-ance and characterization
1.1.1 Diseased sample collection
1.1.2 Isolation and maintenance
1.1.3 Biochemical and physiological tests
1.2 PCR identification
1.3 Sequencing and phylogenetics
1.4 Pathogenicity tests
2 Results and analysis
2.1 Identification and characterization of pectolytic bacteria
2.1.1 Morphology and pathogenicity of bacterial isolates
2.1.2 Physiological and Biochemical Characteristics of bacterial isolates
2.2 Molecular identification of pectolytic bacteria
2.3 Phylogenetic analysis of Pectobacterium isolates
2.4 Pathogenicity analysis of Pectobacterium isolates
3 Discussion
【参考文献】:
期刊论文
[1]广东马铃薯黑胫病的病原鉴定[J]. 佘小漫,蓝国兵,何自福,汤亚飞,杜振国,罗方芳. 植物病理学报. 2015(05)
[2]世界马铃薯生产发展基本态势及特点[J]. 刘洋,高明杰,何威明,张晴,罗其友. 中国农学通报. 2014(20)
本文编号:3618077
【文章来源】:中国农业科技导报. 2020,22(07)北大核心CSCD
【文章页数】:11 页
【文章目录】:
1 Materials and methods
1.1 Bacterial strains, media, isolation, mainten-ance and characterization
1.1.1 Diseased sample collection
1.1.2 Isolation and maintenance
1.1.3 Biochemical and physiological tests
1.2 PCR identification
1.3 Sequencing and phylogenetics
1.4 Pathogenicity tests
2 Results and analysis
2.1 Identification and characterization of pectolytic bacteria
2.1.1 Morphology and pathogenicity of bacterial isolates
2.1.2 Physiological and Biochemical Characteristics of bacterial isolates
2.2 Molecular identification of pectolytic bacteria
2.3 Phylogenetic analysis of Pectobacterium isolates
2.4 Pathogenicity analysis of Pectobacterium isolates
3 Discussion
【参考文献】:
期刊论文
[1]广东马铃薯黑胫病的病原鉴定[J]. 佘小漫,蓝国兵,何自福,汤亚飞,杜振国,罗方芳. 植物病理学报. 2015(05)
[2]世界马铃薯生产发展基本态势及特点[J]. 刘洋,高明杰,何威明,张晴,罗其友. 中国农学通报. 2014(20)
本文编号:3618077
本文链接:https://www.wllwen.com/nykjlw/dzwbhlw/3618077.html
最近更新
教材专著