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Culex quinquefasciatus carrying Wolbachia is less susceptible to entomopathogenic bacteria. Sci Rep 2021; 11:1094. [PMID: 33441735 PMCID: PMC7806911 DOI: 10.1038/s41598-020-80034-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 12/16/2020] [Indexed: 01/29/2023] Open
Abstract
In an attempt to evaluate the susceptibility of the mosquito Culex quinquefasciatus to bacterial agents, a population naturally infected with a Wolbachia pipientis wPipSJ native strain was tested against the action of three bacterial mosquitocides, Bacillus thuringiensis subsp. israelensis, Bacillus wiedmannii biovar thuringiensis and Lysinibacillus sphaericus. Tests were carried out on mosquito larvae with and without Wolbachia (controls). Cx. quinquefasciatus naturally infected with the native wPipSJ strain proved to be more resistant to the pathogenic action of the three mosquitocidal bacterial strains. Additionally, wPipSJ was fully characterised using metagenome-assembled genomics, PCR-RFLP (PCR-Restriction Fragment Length Polymorphism) and MLST (MultiLocus Sequence Typing) analyses. This Wolbachia strain wPipSJ belongs to haplotype I, group wPip-III and supergroup B, clustering with other mosquito wPip strains, such as wPip PEL, wPip JHB, wPip Mol, and wAlbB; showing the southernmost distribution in America. The cytoplasmic incompatibility phenotype of this strain was revealed via crosses between wildtype (Wolbachia+) and antibiotic treated mosquito populations. The results of the tests with the bacterial agents suggest that Cx. quinquefasciatus naturally infected with wPipSJ is less susceptible to the pathogenic action of mosquitocidal bacterial strains when compared with the antibiotic-treated mosquito isoline, and is more susceptible to B. thuringiensis subsp. israelensis than to the other two mosquitocidal agents.
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Potential for Bacillus thuringiensis and Other Bacterial Toxins as Biological Control Agents to Combat Dipteran Pests of Medical and Agronomic Importance. Toxins (Basel) 2020; 12:toxins12120773. [PMID: 33291447 PMCID: PMC7762171 DOI: 10.3390/toxins12120773] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/24/2020] [Accepted: 12/03/2020] [Indexed: 11/16/2022] Open
Abstract
The control of dipteran pests is highly relevant to humans due to their involvement in the transmission of serious diseases including malaria, dengue fever, Chikungunya, yellow fever, zika, and filariasis; as well as their agronomic impact on numerous crops. Many bacteria are able to produce proteins that are active against insect species. These bacteria include Bacillus thuringiensis, the most widely-studied pesticidal bacterium, which synthesizes proteins that accumulate in crystals with insecticidal properties and which has been widely used in the biological control of insects from different orders, including Lepidoptera, Coleoptera, and Diptera. In this review, we summarize all the bacterial proteins, from B. thuringiensis and other entomopathogenic bacteria, which have described insecticidal activity against dipteran pests, including species of medical and agronomic importance.
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Lazarte JN, Lopez RP, Ghiringhelli PD, Berón CM. Bacillus wiedmannii biovar thuringiensis: A Specialized Mosquitocidal Pathogen with Plasmids from Diverse Origins. Genome Biol Evol 2018; 10:2823-2833. [PMID: 30285095 PMCID: PMC6203079 DOI: 10.1093/gbe/evy211] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2018] [Indexed: 11/12/2022] Open
Abstract
Bacillus cereus sensu lato also known as B. cereus group is composed of an ecologically diverse bacterial group with an increasing number of related species, some of which are medically or agriculturally important. Numerous efforts have been undertaken to allow presumptive differentiation of B. cereus group species from one another. FCC41 is a Bacillus sp. strain toxic against mosquito species like Aedes aegypti, Aedes (Ochlerotatus) albifasciatus, Culex pipiens, Culex quinquefasciatus, and Culex apicinus, some of them responsible for the transmission of vector-borne diseases. Here, we report the complete genome sequence of FCC41 strain, which consists of one circular chromosome and eight circular plasmids ranging in size from 8 to 490 kb. This strain harbors six crystal protein genes, including cry24Ca, two cry4-like and two cry52-like, a cry41-like parasporin gene and multiple virulence factors. The phylogenetic analysis of the whole-genome sequence of this strain with molecular approaches places this strain into the Bacillus wiedmannii cluster. However, according with phenotypical characteristics such as the mosquitocidal activity due to the presence of Cry proteins found in the parasporal body and cry genes encoded in plasmids of different sizes, indicate that this strain could be renamed as B. wiedmannii biovar thuringiensis strain FCC41.
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Affiliation(s)
- J Nicolás Lazarte
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC) - CONICET, FIBA, Mar del Plata, Argentina
| | - Rocio P Lopez
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC) - CONICET, FIBA, Mar del Plata, Argentina
| | - P Daniel Ghiringhelli
- Laboratorio de Ingeniería Genética y Biología Celular y Molecular (LIGBCM), Area Virosis de Insectos (AVI), Departamento Ciencia y Tecnología, Universidad Nacional de Quilmes and CONICET, Bernal, Argentina
| | - Corina M Berón
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC) - CONICET, FIBA, Mar del Plata, Argentina
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Zheng A, Zhu J, Wang L, Li S, Deng Q, Wang S, Tan F, Yu X, Guan P, Liang H, Li P. Characterization and expression of a novel holotype insecticidal crystal protein gene from nativeBacillus thuringiensisBM59-2. Can J Microbiol 2010; 56:156-61. [DOI: 10.1139/w09-120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We characterized a novel holotype cry gene (cry52Ba1) harbored in a Bacillus thuringiensis isolate BM59-2 native to China that expresses a spherical crystal protein of about 80 kDa. In this study, the full length of the cry52Ba1 gene was cloned from this strain. Sequence analysis of the gene was also performed. Furthermore, cry52Ba1 was expressed in Escherichia coli BL21(DE)pLysS, and the resulting insecticidal activity showed that the Cry52Ba1 protein exhibited high larvicidal activity against Aedes aegypti (Diptera), with a lethal concentration 50 of 1.526 µg/mL (95% confidence: 0.740–3.499 µg/mL).
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Affiliation(s)
- Aiping Zheng
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
| | - Jun Zhu
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
| | - Lingxia Wang
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
| | - Shuangcheng Li
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
| | - Qiming Deng
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
| | - Shiquan Wang
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
| | - Furong Tan
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
| | - Xiumei Yu
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
| | - Peng Guan
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
| | - Hongxia Liang
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
| | - Ping Li
- Rice Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan 611130, P.R. China
- Biotechnology Research Institute, Shanghai Academy of Agriculture Sciences, Shanghai 201106, P.R. China
- Key Laboratory of Southwest Crop Gene Resource and Genetic Improvement of the Ministry of Education, Sichuan Agricultural University, Ya’an, Sichuan 625014, P.R. China
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