Screening of biocontrol Trichoderma from potato rhizosphere of Western Gansu against Fusarium sambucinum and their identification

Abstract

Abstract: The 108 isolates of Trichoderma were acquired from potato rhizosphere in farming-pasturing zone of Western Gansu, 10 isolates of them had been acquired via the method of face to face on PDA to the pathogen Furuisam sambucinum causing potato dry rot. Through the identification based on morphology and analysis of ITS sequencing, these 10 isolates were identified as 4 species including Trichoderma harzianum, T. longibrachiatum, T. atroviride and T. virens. T. harzianum and T. longibrachiatum are super Trichoderma species from potato rhizosphere in farming-pasturing zone of western Gansu, and these Trichoderma species had the best inhibition against F. sambucinum in this study. T. longibrachiatum showing superior inhibition effect against F. sambucinum is the first report in China.

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ZHANG Ru, LI Jin-hua, CHAI Zhao-xiang, WANG Di. Screening of biocontrol Trichoderma from potato rhizosphere of Western Gansu against Fusarium sambucinum and their identification[J]. Acta Prataculturae Sinica, 2009, 18(2): 138-145.

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Screening of biocontrol Trichoderma from potato rhizosphere of Western Gansu against Fusarium sambucinum and their identification

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[1]	LIU Ya-ya, CHEN Yuan, GUO Feng-xia, SHI You-tai, LI Zeng-xuan, LI Hui-mei. Isolation and identification of the pathogens causing Rheum palmatum root rot [J]. Acta Prataculturae Sinica, 2011, 20(1): 199-205.
[2]	MENG Ya-xiong, ZHONG Jun, MA Xiao-le, LI Bao-chun, LAI Yong, SI Er-jing, SHANG Xun-wu, WANG Hua-jun. RAPD analysis of Puccinia striiformisf. sp tritici in Gansu and SCAR marker establishment for Su11-14 [J]. Acta Prataculturae Sinica, 2010, 19(6): 180-186.
[3]	LI Jin-hua, JI Li-jing, CHAI Zhao-xiang, Knight T E, Burgess L W. A study on the variance of Fusarium graminearum sampled from central Gansu [J]. Acta Prataculturae Sinica, 2009, 18(1): 118-124.