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Resumen
Bacillus thuringiensis is a Gram-positive bacterium known for its insecticidal proteins effective against various insect pests. However, limited strains and proteins target coleopteran pests like Anthonomous grandis Boheman, causing substantial economic losses in the cotton industry. This study focuses on characterizing a Bacillus sp. strain, isolated from Oncativo (Argentina), which exhibits ovoid to amorphous parasporal crystals and was designated
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dc.contributor.author | Sauka, Diego Hernan | |
dc.contributor.author | Peralta, Cecilia | |
dc.contributor.author | Pérez, Melisa Paula | |
dc.contributor.author | Molla, Antonella | |
dc.contributor.author | Fernandez-Göbel, Tadeo | |
dc.contributor.author | Ocampo, Federico | |
dc.contributor.author | Palma, Leopoldo | |
dc.date.accessioned | 2024-02-14T11:26:36Z | |
dc.date.available | 2024-02-14T11:26:36Z | |
dc.date.issued | 2024-01 | |
dc.identifier.issn | 2072-6651 | |
dc.identifier.other | https://doi.org/10.3390/toxins16010004 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/16588 | |
dc.identifier.uri | https://www.mdpi.com/2072-6651/16/1/4 | |
dc.description.abstract | Bacillus thuringiensis is a Gram-positive bacterium known for its insecticidal proteins effective against various insect pests. However, limited strains and proteins target coleopteran pests like Anthonomous grandis Boheman, causing substantial economic losses in the cotton industry. This study focuses on characterizing a Bacillus sp. strain, isolated from Oncativo (Argentina), which exhibits ovoid to amorphous parasporal crystals and was designated Bt_UNVM-84. Its genome encodes genes for the production of two pairs of binary Vpb1/Vpa2 proteins and three Cry-like proteins showing similarity with different Cry8 proteins. Interestingly, this gene content was found to be conserved in a previously characterized Argentine isolate of B. thuringiensis designated INTA Fr7-4. SDS-PAGE analysis revealed a major band of 130 kDa that is proteolytically processed to an approximately 66-kDa protein fragment by trypsin. Bioassays performed with spore-crystal mixtures demonstrated an interesting insecticidal activity against the cotton boll weevil A. grandis neonate larvae, resulting in 91% mortality. Strain Bt_UNVM-84 is, therefore, an interesting candidate for the efficient biological control of this species, causing significant economic losses in the cotton industry in the Americas. | eng |
dc.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | MDPI | es_AR |
dc.rights | info:eu-repo/semantics/openAccess | es_AR |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | es_AR |
dc.source | Toxins 16 (1) : 4 (January 2024) | es_AR |
dc.subject | Bacillus thuringiensis | es_AR |
dc.subject | Control Biológico | es_AR |
dc.subject | Biological Control | eng |
dc.subject | Plagas | es_AR |
dc.subject | Pests | eng |
dc.subject.other | Insecticidal Proteins | eng |
dc.subject.other | Vpb1/Vpa2 Proteins | eng |
dc.subject.other | Cry8 Proteins | eng |
dc.subject.other | Bioinsecticides | eng |
dc.title | Bacillus thuringiensis Bt_UNVM-84, a Novel Strain Showing Insecticidal Activity against Anthonomus grandis Boheman (Coleoptera: Curculionidae) | es_AR |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | es_AR |
dc.type | info:eu-repo/semantics/publishedVersion | es_AR |
dc.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | es_AR |
dc.description.origen | Instituto de Microbiología y Zoología Agrícola (IMYZA) | es_AR |
dc.description.fil | Fil: Sauka, Diego Herman. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina | es_AR |
dc.description.fil | Fil: Sauka, Diego Herman. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | es_AR |
dc.description.fil | Fil: Peralta, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | es_AR |
dc.description.fil | Fil: Peralta, Cecilia. Universidad Nacional de Villa María. Instituto Multidisciplinario de Investigación y Transferencia Agroalimentaria y Biotecnológica; Argentina | es_AR |
dc.description.fil | Fil: Peralta, Cecilia. Universitat de València. Instituto BIOTECMED. Departamento de Genética. Laboratorio de Control Biotecnológico de Plagas; España | es_AR |
dc.description.fil | Fil: Pérez, Melisa Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina | es_AR |
dc.description.fil | Fil: Molla, Antonella. Universidad Nacional de Villa María. Instituto Multidisciplinario de Investigación y Transferencia Agroalimentaria y Biotecnológica; Argentina | es_AR |
dc.description.fil | Fil: Fernandez-Göbel, Tadeo. Elytron Biotech S.A.; Argentina | es_AR |
dc.description.fil | Fil: Ocampo, Federico. Elytron Biotech S.A.; Argentina | es_AR |
dc.description.fil | Fil: Palma, Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | es_AR |
dc.description.fil | Fil: Palma, Leopoldo. Universidad Nacional de Villa María. Instituto Multidisciplinario de Investigación y Transferencia Agroalimentaria y Biotecnológica; Argentina | es_AR |
dc.description.fil | Fil: Palma, Leopoldo. Universitat de València. Instituto BIOTECMED. Departamento de Genética. Laboratorio de Control Biotecnológico de Plagas; España | es_AR |
dc.subtype | cientifico |
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