Identification and Pathogenicity Test of the Pathogens Causing Soybean Root Rot in Fujian

LI Ben-jin; CHEN Qing-he; LAN Cheng-zhong; WANG Na-na; WANG Yuan-chao; WENG Qi-yong

Volume 26 Issue 5

Dec. 2011

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Article Navigation > Fujian Journal of Agricultural Sciences > 2011 > 26(5): 798-803

LI Ben-jin, CHEN Qing-he, LAN Cheng-zhong, WANG Na-na, WANG Yuan-chao, WENG Qi-yong. Identification and Pathogenicity Test of the Pathogens Causing Soybean Root Rot in Fujian[J]. Fujian Journal of Agricultural Sciences, 2011, 26(5): 798-803.

Citation:

LI Ben-jin, CHEN Qing-he, LAN Cheng-zhong, WANG Na-na, WANG Yuan-chao, WENG Qi-yong. Identification and Pathogenicity Test of the Pathogens Causing Soybean Root Rot in Fujian[J]. Fujian Journal of Agricultural Sciences, 2011, 26(5): 798-803.

Citation:

LI Ben-jin, CHEN Qing-he, LAN Cheng-zhong, WANG Na-na, WANG Yuan-chao, WENG Qi-yong. Identification and Pathogenicity Test of the Pathogens Causing Soybean Root Rot in Fujian[J]. Fujian Journal of Agricultural Sciences, 2011, 26(5): 798-803.

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Identification and Pathogenicity Test of the Pathogens Causing Soybean Root Rot in Fujian

1.
Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China;
2.
Department of Plant Pathology, Nanjing Agricultural University, Nanjing,Jiangsu 210095, China

Received Date: 2011-08-14
Rev Recd Date: 2011-09-17
Publish Date: 2011-10-15

Abstract

Abstract

Two hundred and sixteen soybean root rot samples were collected from Zhangzhou, Xiamen, Longyan city in Fujian province during 2007 to 2009 in order to determine the fungal pathogens that could cause soybean root rot, and three hundred and seven filamentous fungi strains were isolated from the samples. Five groups of pathogen were identified, which were Fusarium oxysporum (112 isolates), Fusarium solani (74 isolates), Phytophthora sojae (79 isolates), Rhizoctonia solani (24 isolates),Pythium aphanidermatum (18 isolates) according to the cultural characteristics, morphology, pathogenicity and the rDNA-ITS sequences of the isolates. The results of the pathogenicity of these pathogens revealed that P. sojae, F. oxysporum and F. solani isolates showed strong pathogenicity to soybean roots by artifical infection, leading to disease incidences by 100%、97.8% and 95.6%, respectively, but R. solani and P. aphanidermatum isolates showed weak pathogenicity.
- soybean root rot,
- pathogen identification,
- ITS,
- pathogenicity

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References(7)

References

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