Potential of Lecanicillium spp. for management of insects, nematodes and plant diseases

被引:136
作者
Goettel, Mark S. [1 ]
Koike, Masanori [2 ]
Kim, Jeong Jun [3 ]
Aiuchi, Daigo [2 ]
Shinya, Ryoji [4 ]
Brodeur, Jacques [5 ]
机构
[1] Agr & Agri Food Canada, Lethbridge Res Ctr, Lethbridge, AB T1J 4B1, Canada
[2] Obihiro Univ Agr & Vet Med, Dept Agroenvironm Sci, Obihiro, Hokkaido 0808555, Japan
[3] Natl Inst Agr Sci & Technol, Appl Entomol Div, Suwon 441707, South Korea
[4] Kyoto Univ, Grad Sch Agr, Sakyo Ku, Kyoto 6068502, Japan
[5] Univ Montreal, Inst Rech Biol Vegetale, Dept Sci Biol, Montreal, PQ H1X 2B2, Canada
关键词
Lecanicillium longisporum; Lecanicillium muscarium; Sphaerotheca fuliginea; Verticillium lecanii; Heterodera glycines; aphids; cucumber powdery mildew; entomopathogenic fungi; multiple control;
D O I
10.1016/j.jip.2008.01.009
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Fungi in the genus Lecanicillium (formerly classified as the single species Verticillium lecanii) are important pathogens of insects and some have been developed as commercial biopesticides. Some isolates are also active against phytoparasitic nematodes or fungi. Lecanicillium spp. use both mechanical forces and hydrolytic enzymes to directly penetrate the insect integument and the cell wall of the fungal plant pathogen. In addition to mycoparasitism of the plant pathogen, the mode of action is linked to colonization of host plant tissues, triggering an induced systemic resistance. Recently it was demonstrated that development of Lecanicillium hybrids through protoplast fusion may result in strains that inherit parental attributes, thereby allowing development of hybrid strains with broader host range and other increased benefits, such as increased viability. Such hybrids have demonstrated increased virulence against aphids, whiteflies and the soybean cyst nematode. Three naturally occurring species of Lecanicillium, L. attenuatum, L. longisporum, and an isolate that could not be linked to any presently described species based on rDNA sequences have been shown to have potential to control aphids as well as suppress the growth and spore production of Sphaerotheca fuliginea, the causal agent of cucumber powdery mildew. These results suggest that strains of Lecanicillium spp. may have potential for development as a single microbial control agent effective against several plant diseases, pest insects and plant parasitic nematodes due to its antagonistic, parasitic and disease resistance inducing characteristics. However, to our knowledge, no Lecanicillium spp. have been developed for control of phytopathogens or phytoparasitic nematodes. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:256 / 261
页数:6
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