Screening of tropical isolates of Metarhizium anisopliae for virulence to the red palm weevil Rhynchophorus ferrugineus Olivier (Coleoptera: Curculionidae)
文献类型: 外文期刊
第一作者: Sun, Xiaodong
作者: Sun, Xiaodong;Yan, Wei;Qin, Weiquan;Zhang, Jing;Niu, Xiaoqing;Sun, Xiaodong;Li, Fuheng;Ma, Guangchang
作者机构:
关键词: Metarhizium anisopliae;Red palm weevil;ITS;Mortality;Bioassay
期刊名称:SPRINGERPLUS ( 影响因子:1.13; 五年影响因子:1.29 )
ISSN: 2193-1801
年卷期: 2016 年 5 卷
页码:
收录情况: SCI
摘要: The red palm weevil, Rhynchophorus ferrugineus Olivier (Coleoptera: Curculionidae) is a serious pest of the palm tree in tropical regions of the world. One strain of Metarhizium sp. ZJ-1, isolated from Chinese soils, was evaluated for growth characteristics, and screened for its virulence to R. ferrugineus larvae in laboratory conditions. An approximately 685-bp fragment was amplified by ITS (ITS1-5.8S-ITS2) PCR from strain ZJ-1, further phylogenetic analysis revealed that 93 % similarity to Metarhizium anisopliae. Inoculation of 1 x 10(8) conidia/mL caused 100 % mortality of R. ferrugineus, LT50 levels of ZJ-1 were 1.66 days (1 x 10(8) conidia/mL), indicating that the conidia of strain ZJ-1 were highly virulent. These results suggest that M. anisopliae ZJ-1 has potential as an effective and persistent biological control agent for R. ferrugineus.
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