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Species diversity and temporal niche of entomopathogenic fungi in the extensively managed tea plantation soil.

GUO Xian-jian1, SHEN Wan-fang2, LIU Yu-jun1, CHEN Ming-jun1   

  1. (1Anhui Province Key Laboratory of Microbial Control, Anhui Agricultural University, Hefei 230036, China; 2 Landscaping Office of Mountain Huangshan Scenic Spot, Huangshan 245001, Anhui, China)
  • Online:2014-11-18 Published:2014-11-18

Abstract: The species diversity and temporal niche of entomopathogenic fungi community in the rhizosphere soil collected from the extensively managed Huangshan fuzz tip tea plantation were investigated. A total of 140 soil samples were collected at the location of Tangkou Town, Huangshan of Anhui Province during August, 2012 to June, 2013, and totally 1041 fungal isolates were obtained on selective medium with soil dilution plating. The results showed that the entomopathogenic fungi community in the tea plantation soil was diverse with 13 species in 6 genera. Purpureocillium lilacinum (309 strains), Beauveria bassiana (255 strains), and Metarhizium anisopliae (101 strains) were the dominant species accounting for 29.7%, 24.5% and 9.7% of the relative frequency, respectively. P. lilacinum had the widest temporal niche breadth among these dominant entomopathogenic fungi from the tea plantation soil, while B. bassiana had the narrowest. Among the entomopathogenic fungi, B. bassiana and B. brongniartii had the biggest temporal niche overlap of 1.965, while Isaria javanicus and B. bassiana had the smallest of 0.374.