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
作者： Sun, Xiaodong 1 ; Yan, Wei 1 ; Qin, Weiquan 1 ; Zhang, Jing 1 ; Niu, Xiaoqing 1 ; Ma, Guangchang 3 ; Li, Fuheng 2 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Hainan Key Lab Trop Oil Crops Biol, Coconuts Res Inst, Wenchang 571339, Hainan, Peoples R China
2.Northeast Agr Univ, Coll Sci, Harbin 150030, Heilongjiang, Peoples R China
3.Chinese Acad Trop Agr Sci, Environm & Plant Protect Res Inst, Haikou 571101, Hainan, Peoples R China
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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