Isolation and Identification of the Pathogen Caused Potato Blackleg Disease in Fujian Province

doi:10.16420/j.issn.0513-353x.2019-0942

Acta Horticulturae Sinica ›› 2020, Vol. 47 ›› Issue (10): 2009-2018.doi: 10.16420/j.issn.0513-353x.2019-0942

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Isolation and Identification of the Pathogen Caused Potato Blackleg Disease in Fujian Province

LI Huawei，LIN Zhijian，LUO Wenbin，XU Guochun，JI Rongchang，QIU Sixin，and TANG Hao*

Crop Research Institute，Fujian Academy of Agricultural Sciences，Scientific Observing and Experimental Station of Tuber and Root Crops in South China，Ministry of Agriculture，Technical Research Center of Specialty Day Crop Variety Breeding of Fujian，Fuzhou 350013，China

Online:2020-10-25 Published:2020-11-10

Abstract

Abstract: In order to clarify the species and biological characteristics of the pathogen which caused potato blackleg disease in Fujian Province，the pathogens were collected and isolated from Qingkou，Xiapu and Zhouning，and the pathogens were identified with plate isolation，purification，pathogenicity，physiological and biochemical characteristics and molecular biological methods. The results showed that nine strains of potato blackleg pathogens were isolated from the pathogenic potato，two were identified as Pectobacterium atrosepticum，three as P. carotovorum subsp. carotovorum，and four as P. carotovorum subsp. brasiliensis. And the nine strains were different，the pathogen in Qingkou was P. atrosepticum，that in Xiapu was P. carotovorum subsp. carotovorum，and that in Zhouning was a mixture of P. carotovorum subsp. carotovorum and P. carotovorum subsp. brasiliense.

Key words: potato, blackleg disease, pathogen, identification

CLC Number:

S 532

LI Huawei, LIN Zhijian, LUO Wenbin, XU Guochun, JI Rongchang, QIU Sixin, and TANG Hao. Isolation and Identification of the Pathogen Caused Potato Blackleg Disease in Fujian Province[J]. Acta Horticulturae Sinica, 2020, 47(10): 2009-2018.

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Isolation and Identification of the Pathogen Caused Potato Blackleg Disease in Fujian Province

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