文献类型： 外文期刊
作者： Li, Xiaoqiong 2 ; Guo, Wenfeng 3 ; Ding, Jianqing 1 ;
作者机构： 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Plant & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Guangxi Acad Agr Sci, Guangxi Crop Genet Improvement & Biotechnol Lab, Nanning 530007, Guangxi, Peoples R China
关键词： biological control agents;biological development;cellulose;leaves;lignin;natural enemies;oviposition;survival;weeds;Attelabidae;Fallopia japonica;Penicillium;Rhizopus;Coleoptera;insects;Hexapoda;arthropods;invertebrates;animals;eukaryotes;Reynoutria;Fallopia;Polygonaceae;Polygonales;dicotyledons;angiosperms;Spermatophyta;plants;Trichocomaceae;Eurotiales;Eurotiomycetes;Pezizomycotina;Ascomycota;fungi;Penicillium;Mucoraceae;Mucorales;Mucoromycotina;Zygomycota;biocontrol agents;biological control organisms;Euops chinesis;fungus;Japanese knotweed;Penicillium herquei
期刊名称：JOURNAL OF INSECT PHYSIOLOGY （ 影响因子：2.354； 五年影响因子：3.045 ）
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收录情况： SCI
摘要： While a wide array of insects form symbiotic relationships with microbes, the underlying mechanisms of these relationships are various and complex. In this study, we investigated the role that the mycangial fungus Penicillium herquei plays in the development of the leaf-rolling weevil Euops chinesis, which feeds on the knotweed Fallopia japonica. The weevil inoculates the fungus during oviposition into a leaf-roll that it creates for its larvae. We found that removal of P. herquei inocula from leaf-rolls significantly decreased the weevil's survival rate especially in the larval stage. Although inoculation with P. herquei had no effect on the plant's lignin content, it significantly decreased the cellulose content of the knotweed leaves. P. herquei also showed antibiotic properties against two fungi (Rhizopus sp.) that attack the weevil's leaf-rolls. Our results suggest that the mycangial fungus may help alter leaf chemical components and protect against pathogens thus improve leaf-rolls for the development of E. chinesis. (C) 2012 Elsevier Ltd. All rights reserved.
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