Acevedo Juan Pablo Molina, Samuels Richard Ian, Machado Inês Ribeiro, Dolinski Claudia
Department of Entomology and Plant Pathology, LEF-CCTA, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego 2000, CEP 28013-620 Campos dos Goytacazes, RJ, Brazil.
J Invertebr Pathol. 2007 Oct;96(2):187-92. doi: 10.1016/j.jip.2007.04.003. Epub 2007 Apr 21.
Interactions between the nematode Heterorhabditis bacteriophora isolate JPM4 and the fungus Metarhizium anisopliae, isolates LPP45 and LPP39, were studied during dual infections of Diatraea saccharalis. Mortality, production of infective juveniles (IJs) and production of conidia were evaluated. A positive effect was demonstrated for host mortality in duel infections of JPM4 and LPP39, causing 100% mortality with LT(50) and LT(95) values of 1.8 and 2.8 days, respectively. Higher values were seen when using the nematode or fungi individually. However, a combination of JPM4+LPP39 caused a significant reduction in IJ production. The results show that faster time to death, a moderately virulent fungal isolate could be combined with the nematode, however at the expense of IJ production.
在甘蔗二点螟的双重感染过程中，研究了线虫嗜菌异小杆线虫分离株JPM4与真菌绿僵菌分离株LPP45和LPP39之间的相互作用。评估了死亡率、感染性幼虫（IJ）的产生和分生孢子的产生。在JPM4和LPP39的双重感染中，宿主死亡率呈现出积极影响，导致100%的死亡率，LT(50)和LT(95)值分别为1.8天和2.8天。单独使用线虫或真菌时，死亡率更高。然而，JPM4 + LPP39的组合导致IJ产量显著降低。结果表明，致死时间更快，一种中等毒力的真菌分离株可以与线虫联合使用，但代价是IJ产量降低。
