Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80 - 56124 Pisa, Italy.
Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto, 80 - 56124 Pisa, Italy; Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, 74690-900 Goiânia, Brazil.
J Invertebr Pathol. 2020 Nov;177:107493. doi: 10.1016/j.jip.2020.107493. Epub 2020 Oct 22.
In order to increase our understanding of the insecticidal potential of the entomopathogenic bacterium Brevibacillus laterosporus strain UNISS 18 against insect pests, investigations were conducted on a selection of dipteran species including fruit flies, house flies, blow flies, and mosquitoes, characterized by adaptations to very diverse habitats. According to lethal concentration (LC) values, the common house mosquito Culex pipiens (LC = 0.10 × 10 spores/mL) and the yellow fever mosquito Aedes aegypti (LC = 0.18 × 10 spores/mL) were significantly more susceptible than the flies. The blow flies were the second taxon in term of susceptibility to B. laterosporus spores, with a higher mortality in Calliphora vomitoria (LC = 78.84 × 10 spores/mL) than Lucilia caesar (LC = 148.30 × 10 spores/mL). The effectiveness of B. laterosporus spores was reduced by half in the house fly Musca domestica (LC = 82.41 × 10 spores/mL). The lowest susceptibility was observed in the fruit flies, among which the spotted wing drosophila (SWD), Drosophila suzukii, was the most susceptible (LC = 217.51 × 10 spores/mL) in comparison with the medfly Ceratitis capitata and the olive fly Bactrocera oleae (LC = 2567.32 and 2567.36 × 10 spores/mL, respectively). The present study demonstrated that significantly different degrees of susceptibility are associated with diverse dipteran species including plant and animal parasites, and we suggest that B. laterosporus established different relationships with dipteran species in different ecosystems.
为了增进我们对昆虫病原细菌短小芽孢杆菌菌株 UNISS 18 对害虫杀虫潜力的了解，我们对包括水果蝇、家蝇、麻蝇和蚊子在内的一系列双翅目物种进行了调查，这些物种具有适应非常多样化生境的特征。根据致死浓度 (LC) 值，普通家蚊库蚊 (LC = 0.10×10 孢子/mL) 和黄热病蚊埃及伊蚊 (LC = 0.18×10 孢子/mL) 比苍蝇更为敏感。麻蝇在对短小芽孢杆菌孢子的敏感性方面排名第二，丽蝇 Calliphora vomitoria (LC = 78.84×10 孢子/mL) 的死亡率高于丽蝇 Lucilia caesar (LC = 148.30×10 孢子/mL)。家蝇的短小芽孢杆菌孢子的有效性降低了一半 (LC = 82.41×10 孢子/mL)。在水果蝇中观察到的敏感性最低，其中斑翅果蝇 (SWD) 最敏感 (LC = 217.51×10 孢子/mL)，与地中海实蝇和橄榄实蝇相比 (LC = 2567.32 和 2567.36×10 孢子/mL)。本研究表明，不同的双翅目物种包括植物和动物寄生虫具有不同程度的敏感性，我们建议短小芽孢杆菌与不同生态系统中的双翅目物种建立了不同的关系。
