Screening of tropical isolates of Metarhizium anisopliae for virulence to the red palm weevil Rhynchophorus ferrugineus Olivier (Coleoptera: Curculionidae)

被引：9
作者：
Sun, Xiaodong [1 ,2 ]
Yan, Wei [1 ]
Qin, Weiquan [1 ]
Zhang, Jing [1 ]
Niu, Xiaoqing [1 ]
Ma, Guangchang [3 ]
Li, Fuheng [2 ]
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
来源：
SPRINGERPLUS | 2016年 / 5卷
关键词：
Metarhizium anisopliae; Red palm weevil; ITS; Mortality; Bioassay; SUGARCANE;
D O I：
10.1186/s40064-016-2780-6
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
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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页数：5
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