Molecular detection of Pectobacterium species causing soft rot of Amorphophallus konjac

文献类型： 外文期刊

第一作者： Wu, Jinping

作者： Wu, Jinping;Diao, Ying;Hu, Zhongli;Wu, Jinping;Gu, Yucheng;Diao, Ying

作者机构：

关键词： Amorphophallus konjac;Real-time PCR;Soft rot disease;Pectobacterium species

期刊名称：WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY （ 影响因子：3.312； 五年影响因子：3.58 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Soft rot disease of Amorphophallus konjac is caused by Pectobacterium species. Infected corms are considered a primary and important source of inocula. Based on the 16S rDNA sequences of the soft rot pathogens, one pair of specific primers was designed to identify the soft rot disease by real-time PCR and the other two were used to identify the pathogens of Pectobacterium carotovorum subsp. carotovorum. and P. chrysanthemi respectively. According to the results, a single cell of Pectobacterium could be detected by real-time PCR with the designed primer pair, while at least 100 bacteria were required for conventional PCR. Moreover, the two special primers can directly and accurately authenticate to Pectobacterium carotovorum subsp. carotovorum and P. chrysanthemi by the conventional PCR system without testing the pathogenicity, biochemical and phenotypic characterizations and so on. In conclusion, the PCR-based techniques showed several significant advantages in identifying the soft rot pathogens from konjac, such as higher sensitivity, rapidness and precision, and it could be widely used in seed quarantine.

分类号： Q93

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