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Osmotic induction of anhydrobiosis in entomopathogenic nematodes of the genera Heterorhabditis and Steinernema

文献类型： 外文期刊

作者： Yan, Xun 2 ; Liu, Xuejiao 3 ; Han, Richou 3 ; Chen, Shulong 4 ; De Clercq, Patrick 2 ; Moens, Maurice 1 ;

作者机构： 1.Inst Agr & Fisheries Res, B-9280 Merelbeke, Belgium

2.Univ Ghent, Dept Crop Protect, Fac Biosci Engn, B-9000 Ghent, Belgium

3.Guangdong Entomol Inst, Guangzhou 510260, Guangdong, Peoples R China

4.Hebei Acad Agr & Forestry Sci, Inst Plant Protect, Baoding 071000, Peoples R China

5.Acad Sci China, S China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China

关键词： Heat tolerance;Heterorhabditis;Infectivity;Osmotic tolerance;Steinernema

期刊名称：BIOLOGICAL CONTROL （ 影响因子：3.687； 五年影响因子：3.962 ）

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收录情况： SCI

摘要： The osmotic tolerance of different species and isolates of entomopathogenic nematodes of the genera Steinernema and Heterorhabditis was examined using an osmotic solution to induce anhydrobiosis in these nematodes. Infective juveniles (IJs) of the species and isolates were exposed for 72 h to the osmotic solution consisting of a mixture of fortified artificial seawater and glycerol at 15 pC. Morphological appearance, motility, survival, heat tolerance and infectivity of the osmotically treated IJs were investigated. The results indicated that different species or isolates of nematodes showed differences in osmotic tolerance. Some species, such as S. carpocapsae All and S. scapterisci SS, adapted well to the osmotic solution. Their mortality was below 2%, and their heat tolerance was improved. Other species, including S. feltiae SN, S. longicaudum X-7 and H. bacteriophora H06, were moderately tolerant to the osmotic solution, suffering less than 20% mortality. However, the osmotic treatment greatly enhanced their heat tolerance. Although the infectivity of some osmotically treated isolates was lower than that of non-treated nematodes, the osmotically treated IJs retained their infectivity to Galleria mellonella larvae.

  • 相关文献

[1]Osmotic responses of different strains of Steinernema carpocapsae. Yan, Xun,De Clercq, Patrick,Moens, Maurice,Yan, Xun,Han, Richou,Jones, John,Chen, Shulong,Moens, Maurice. 2011

[2]Efficacy of entomopathogenic nematodes (Rhabditida: Steinernematidae and Heterorhabditidae) against the striped flea beetle, Phyllotreta striolata. Xu, Caixia,Han, Richou,De Clercq, Patrick,Moens, Maurice,Chen, Shulong,Moens, Maurice. 2010

[3]Efficacy of entomopathogenic nematodes (Rhabditida: Steinernematidae and Heterorhabditidae) against the chive gnat, Bradysia odoriphaga. Ma, Juan,Chen, Shulong,Ma, Juan,Moens, Maurice,De Clercq, Patrick,Moens, Maurice,Han, Richou. 2013

[4]Steinernema sichuanense n. sp (Rhabditida, Steinernematidae), a new species of entomopathogenic nematode from the province of Sichuan, east Tibetan Mts., China. Mracek, Zdenek,Nguyen, Khuong B.,Tailliez, Patrick,Boemare, Noel,Chen, Shulong. 2006

[5]Characterization in biological traits of entomopathogenic nematodes isolated from North China. Ma, Juan,Chen, Shulong,Li, Xiuhua,Moens, Maurice,De Clercq, Patrick,Han, Richou,Moens, Maurice. 2013

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