Analysis on the Species Composition and Mycotoxin Chemotypes of Wheat Fusarium Head Blight in Shandong Province

doi:10.7668/hbnxb.2017.S1.007

Abstract

Abstract: In order to determine the species composition and toxin chemical type of FHB in Shandong,during 2014 to 2015 from 28 counties and cities in Shandong,collected more than 300 samples of FHB,isolated 338 strains.According to the collected location select 120 strains randomly as the tested strains,specific primers were used for identification strain and identification of type B toxin chemical type.The results showed that 120 strains of Fusarium graminearum lineage clade, divided into two species:F.graminearum and F.asiaticum,respectively 108 and 12 strains,of which F.graminearum accounted for 90% was the predominant. F.asiaticum was the advantage species in the Yangtze River area,and this evolutionary type was for the first time detected in Shandong,and its distribution had no obvious relationship with the previous crop in Shandong.The toxin chemical analysis showed that there are 118 strains had deoxynivalenol (DON) chemotypes,only two strains produced nivalenol (NIV) chemotypes.The 118 DON strains was further divided into 15-acetyldeoxynivalenol (15-AcDON) and 3-acetyldeoxynivalenol (3-AcDON),the corresponding strains were 101 strains and 17 strains.

Key words: Fusarium head blight, Population structure, Mycotoxin chemotypes, Preceding crop

CLC Number:

S432.1

GAO Xianyue, GAO Shumin, LIU Shaojie, ZHANG Li, YU Jinfeng. Analysis on the Species Composition and Mycotoxin Chemotypes of Wheat Fusarium Head Blight in Shandong Province[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(S1): 37-42. doi: 10.7668/hbnxb.2017.S1.007.

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