西北地區(qū)馬鈴薯軟腐病和黑脛病致病菌鑒定及特性分析(英文)
發(fā)布時間:2022-02-10 02:23
西北地區(qū)是我國馬鈴薯的重要產(chǎn)區(qū),為了鑒定來自青海、甘肅、寧夏、陜西和內(nèi)蒙古自治區(qū)的馬鈴薯軟腐和黑脛致病菌,利用16S rDNA序列對來自中國5個。ㄗ灾螀^(qū))的48株馬鈴薯致病菌株和28株參比菌株進行系統(tǒng)發(fā)育分析;诰甑男螒B(tài)學特性、培養(yǎng)性狀和生理生化特性、16S rDNA序列以及特殊基因序列分析進行鑒定,利用塊莖接種法測定不同菌株之間的致病性差異。pel特異性引物表明,48株細菌均具有果膠溶解特性。其中16個菌株為胡蘿卜果膠桿菌胡蘿卜亞種(Pectobacterium carotovorum subsp.carotovorum),頻數(shù)為31.25%,30個菌株為黑腐果膠桿菌(Pectobacterium atrosepticum),頻數(shù)為64.50%。16S rRNA基因序列的系統(tǒng)發(fā)育分析表明,Pectobacterium carotovorum subsp.carotovorum與Pectobacterium atrosepticum分別與其他Pcc和Pa菌株聚集成明顯的類群,自舉支持值分別為97%和99%。致病性測定顯示不同分離菌株浸漬塊莖的水平不同。分離的Pcc和Pa菌株的塊莖...
【文章來源】:中國農(nóng)業(yè)科技導報. 2020,22(07)北大核心CSCD
【文章頁數(shù)】:11 頁
【文章目錄】:
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
【參考文獻】:
期刊論文
[1]廣東馬鈴薯黑脛病的病原鑒定[J]. 佘小漫,藍國兵,何自福,湯亞飛,杜振國,羅方芳. 植物病理學報. 2015(05)
[2]世界馬鈴薯生產(chǎn)發(fā)展基本態(tài)勢及特點[J]. 劉洋,高明杰,何威明,張晴,羅其友. 中國農(nóng)學通報. 2014(20)
本文編號:3618077
【文章來源】:中國農(nóng)業(yè)科技導報. 2020,22(07)北大核心CSCD
【文章頁數(shù)】:11 頁
【文章目錄】:
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
【參考文獻】:
期刊論文
[1]廣東馬鈴薯黑脛病的病原鑒定[J]. 佘小漫,藍國兵,何自福,湯亞飛,杜振國,羅方芳. 植物病理學報. 2015(05)
[2]世界馬鈴薯生產(chǎn)發(fā)展基本態(tài)勢及特點[J]. 劉洋,高明杰,何威明,張晴,羅其友. 中國農(nóng)學通報. 2014(20)
本文編號:3618077
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