Growth inhibition of Beauveria bassiana by bacteria isolated from the cuticular surface of the corn leafhopper, Dalbulus maidis and the planthopper, Delphacodes ku...

Autores: Toledo, Andrea V.; Alippi, Adriana Mónica; Marino de Remes Lenicov, Ana María
Año de publicación: 2011
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: The phytosanitary importance of the corn leafhopper, Dalbulus maidis (Delong and Wolcott) (Hemiptera: Cicadellidae) and the planthopper, Delphacodes kuscheli (Fennah) (Hemiptera: Delphacidae) lies in their ability to transmit phloem-associated plant pathogens, mainly viruses and mollicutes, and to cause considerable mechanical damage to corn plants during feeding and oviposition. Fungi, particularly some members of the Ascomycota, are likely candidates for biocontrol agents against these insect pests, but several studies revealed their failure to invade the insect cuticle possibly because of the presence of inhibitory compounds such as phenols, quinones, and lipids and also by the antibiosis effect of the microbiota living on the cuticular surface of the host. The present work aims to understand interactions between the entomopathogenic fungus Beauveria bassiana (Balsamao-Crivelli) Vuillemin (Hypocreales: Cordycipitaceae) and bacterial antagonists isolated from the cuticular surface of D. maidis and D. kuscheli. A total of 155 bacterial isolates were recovered from the insect's cuticle and tested against B. bassiana. Ninety-one out of 155 strains inhibited the growth of B. bassiana. Bacterial strains isolated from D. maidis were significantly more antagonistic against B. bassiana than those isolates from D. kuscheli. Among the most effective antagonistic strains, six isolates of Bacillus thuringiensis Berliner (Bacillales: Bacillaeae), one isolate of B. mycoides Flügge, eight isolates of B. megaterium de Bary, five isolates of B. pumilus Meyer and Gottheil, one isolate of B. licheniformis (Weigmann) Chester, and four isolates of B. subtilis (Ehrenberg) Cohn were identified.
Facultad de Ciencias Agrarias y Forestales
Materia: Ciencias Agrarias
Bacillus licheniformis, Bacillus megaterium, Bacillus mycoides, Bacillus pumilus, Bacillus subtilis, Bacillus thuringiensis, bacterial antagonists, cicedellids, delphacids, entomopathogenic fungus
Hemípteros
Hongos
Bacterias
Nivel de accesibilidad: acceso abierto
Condiciones de uso: http://creativecommons.org/licenses/by/4.0/
Repositorio
Institución: Universidad Nacional de La Plata
OAI Identificador: oai:sedici.unlp.edu.ar:10915/57467

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network_name_str	SEDICI (UNLP)
spelling	Growth inhibition of <i>Beauveria bassiana</i> by bacteria isolated from the cuticular surface of the corn leafhopper, <i>Dalbulus maidis</i> and the planthopper, <i>Delphacodes kuscheli</i>, two important vectors of maize pathogensToledo, Andrea V.Alippi, Adriana MónicaMarino de Remes Lenicov, Ana MaríaCiencias AgrariasBacillus licheniformis, Bacillus megaterium, Bacillus mycoides, Bacillus pumilus, Bacillus subtilis, Bacillus thuringiensis, bacterial antagonists, cicedellids, delphacids, entomopathogenic fungusHemípterosHongosBacteriasThe phytosanitary importance of the corn leafhopper, Dalbulus maidis (Delong and Wolcott) (Hemiptera: Cicadellidae) and the planthopper, Delphacodes kuscheli (Fennah) (Hemiptera: Delphacidae) lies in their ability to transmit phloem-associated plant pathogens, mainly viruses and mollicutes, and to cause considerable mechanical damage to corn plants during feeding and oviposition. Fungi, particularly some members of the Ascomycota, are likely candidates for biocontrol agents against these insect pests, but several studies revealed their failure to invade the insect cuticle possibly because of the presence of inhibitory compounds such as phenols, quinones, and lipids and also by the antibiosis effect of the microbiota living on the cuticular surface of the host. The present work aims to understand interactions between the entomopathogenic fungus Beauveria bassiana (Balsamao-Crivelli) Vuillemin (Hypocreales: Cordycipitaceae) and bacterial antagonists isolated from the cuticular surface of D. maidis and D. kuscheli. A total of 155 bacterial isolates were recovered from the insect's cuticle and tested against B. bassiana. Ninety-one out of 155 strains inhibited the growth of B. bassiana. Bacterial strains isolated from D. maidis were significantly more antagonistic against B. bassiana than those isolates from D. kuscheli. Among the most effective antagonistic strains, six isolates of Bacillus thuringiensis Berliner (Bacillales: Bacillaeae), one isolate of B. mycoides Flügge, eight isolates of B. megaterium de Bary, five isolates of B. pumilus Meyer and Gottheil, one isolate of B. licheniformis (Weigmann) Chester, and four isolates of B. subtilis (Ehrenberg) Cohn were identified.Facultad de Ciencias Agrarias y Forestales2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/57467enginfo:eu-repo/semantics/altIdentifier/hdl/11746/4173info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:47:49Zoai:sedici.unlp.edu.ar:10915/57467Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:47:50.005SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv	Growth inhibition of <i>Beauveria bassiana</i> by bacteria isolated from the cuticular surface of the corn leafhopper, <i>Dalbulus maidis</i> and the planthopper, <i>Delphacodes kuscheli</i>, two important vectors of maize pathogens
title	Growth inhibition of <i>Beauveria bassiana</i> by bacteria isolated from the cuticular surface of the corn leafhopper, <i>Dalbulus maidis</i> and the planthopper, <i>Delphacodes kuscheli</i>, two important vectors of maize pathogens
spellingShingle	Growth inhibition of <i>Beauveria bassiana</i> by bacteria isolated from the cuticular surface of the corn leafhopper, <i>Dalbulus maidis</i> and the planthopper, <i>Delphacodes kuscheli</i>, two important vectors of maize pathogens Toledo, Andrea V. Ciencias Agrarias Bacillus licheniformis, Bacillus megaterium, Bacillus mycoides, Bacillus pumilus, Bacillus subtilis, Bacillus thuringiensis, bacterial antagonists, cicedellids, delphacids, entomopathogenic fungus Hemípteros Hongos Bacterias
title_short	Growth inhibition of <i>Beauveria bassiana</i> by bacteria isolated from the cuticular surface of the corn leafhopper, <i>Dalbulus maidis</i> and the planthopper, <i>Delphacodes kuscheli</i>, two important vectors of maize pathogens
title_full	Growth inhibition of <i>Beauveria bassiana</i> by bacteria isolated from the cuticular surface of the corn leafhopper, <i>Dalbulus maidis</i> and the planthopper, <i>Delphacodes kuscheli</i>, two important vectors of maize pathogens
title_fullStr	Growth inhibition of <i>Beauveria bassiana</i> by bacteria isolated from the cuticular surface of the corn leafhopper, <i>Dalbulus maidis</i> and the planthopper, <i>Delphacodes kuscheli</i>, two important vectors of maize pathogens
title_full_unstemmed	Growth inhibition of <i>Beauveria bassiana</i> by bacteria isolated from the cuticular surface of the corn leafhopper, <i>Dalbulus maidis</i> and the planthopper, <i>Delphacodes kuscheli</i>, two important vectors of maize pathogens
title_sort	Growth inhibition of <i>Beauveria bassiana</i> by bacteria isolated from the cuticular surface of the corn leafhopper, <i>Dalbulus maidis</i> and the planthopper, <i>Delphacodes kuscheli</i>, two important vectors of maize pathogens
dc.creator.none.fl_str_mv	Toledo, Andrea V. Alippi, Adriana Mónica Marino de Remes Lenicov, Ana María
author	Toledo, Andrea V.
author_facet	Toledo, Andrea V. Alippi, Adriana Mónica Marino de Remes Lenicov, Ana María
author_role	author
author2	Alippi, Adriana Mónica Marino de Remes Lenicov, Ana María
author2_role	author author
dc.subject.none.fl_str_mv	Ciencias Agrarias Bacillus licheniformis, Bacillus megaterium, Bacillus mycoides, Bacillus pumilus, Bacillus subtilis, Bacillus thuringiensis, bacterial antagonists, cicedellids, delphacids, entomopathogenic fungus Hemípteros Hongos Bacterias
topic	Ciencias Agrarias Bacillus licheniformis, Bacillus megaterium, Bacillus mycoides, Bacillus pumilus, Bacillus subtilis, Bacillus thuringiensis, bacterial antagonists, cicedellids, delphacids, entomopathogenic fungus Hemípteros Hongos Bacterias
dc.description.none.fl_txt_mv	The phytosanitary importance of the corn leafhopper, Dalbulus maidis (Delong and Wolcott) (Hemiptera: Cicadellidae) and the planthopper, Delphacodes kuscheli (Fennah) (Hemiptera: Delphacidae) lies in their ability to transmit phloem-associated plant pathogens, mainly viruses and mollicutes, and to cause considerable mechanical damage to corn plants during feeding and oviposition. Fungi, particularly some members of the Ascomycota, are likely candidates for biocontrol agents against these insect pests, but several studies revealed their failure to invade the insect cuticle possibly because of the presence of inhibitory compounds such as phenols, quinones, and lipids and also by the antibiosis effect of the microbiota living on the cuticular surface of the host. The present work aims to understand interactions between the entomopathogenic fungus Beauveria bassiana (Balsamao-Crivelli) Vuillemin (Hypocreales: Cordycipitaceae) and bacterial antagonists isolated from the cuticular surface of D. maidis and D. kuscheli. A total of 155 bacterial isolates were recovered from the insect's cuticle and tested against B. bassiana. Ninety-one out of 155 strains inhibited the growth of B. bassiana. Bacterial strains isolated from D. maidis were significantly more antagonistic against B. bassiana than those isolates from D. kuscheli. Among the most effective antagonistic strains, six isolates of Bacillus thuringiensis Berliner (Bacillales: Bacillaeae), one isolate of B. mycoides Flügge, eight isolates of B. megaterium de Bary, five isolates of B. pumilus Meyer and Gottheil, one isolate of B. licheniformis (Weigmann) Chester, and four isolates of B. subtilis (Ehrenberg) Cohn were identified. Facultad de Ciencias Agrarias y Forestales
description	The phytosanitary importance of the corn leafhopper, Dalbulus maidis (Delong and Wolcott) (Hemiptera: Cicadellidae) and the planthopper, Delphacodes kuscheli (Fennah) (Hemiptera: Delphacidae) lies in their ability to transmit phloem-associated plant pathogens, mainly viruses and mollicutes, and to cause considerable mechanical damage to corn plants during feeding and oviposition. Fungi, particularly some members of the Ascomycota, are likely candidates for biocontrol agents against these insect pests, but several studies revealed their failure to invade the insect cuticle possibly because of the presence of inhibitory compounds such as phenols, quinones, and lipids and also by the antibiosis effect of the microbiota living on the cuticular surface of the host. The present work aims to understand interactions between the entomopathogenic fungus Beauveria bassiana (Balsamao-Crivelli) Vuillemin (Hypocreales: Cordycipitaceae) and bacterial antagonists isolated from the cuticular surface of D. maidis and D. kuscheli. A total of 155 bacterial isolates were recovered from the insect's cuticle and tested against B. bassiana. Ninety-one out of 155 strains inhibited the growth of B. bassiana. Bacterial strains isolated from D. maidis were significantly more antagonistic against B. bassiana than those isolates from D. kuscheli. Among the most effective antagonistic strains, six isolates of Bacillus thuringiensis Berliner (Bacillales: Bacillaeae), one isolate of B. mycoides Flügge, eight isolates of B. megaterium de Bary, five isolates of B. pumilus Meyer and Gottheil, one isolate of B. licheniformis (Weigmann) Chester, and four isolates of B. subtilis (Ehrenberg) Cohn were identified.
publishDate	2011
dc.date.none.fl_str_mv	2011
dc.type.none.fl_str_mv	info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo
format	article
status_str	publishedVersion
dc.identifier.none.fl_str_mv	http://sedici.unlp.edu.ar/handle/10915/57467
url	http://sedici.unlp.edu.ar/handle/10915/57467
dc.language.none.fl_str_mv	eng
language	eng
dc.relation.none.fl_str_mv	info:eu-repo/semantics/altIdentifier/hdl/11746/4173
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv	openAccess
rights_invalid_str_mv	http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv	application/pdf
dc.source.none.fl_str_mv	reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP
reponame_str	SEDICI (UNLP)
collection	SEDICI (UNLP)
instname_str	Universidad Nacional de La Plata
instacron_str	UNLP
institution	UNLP
repository.name.fl_str_mv	SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv	alira@sedici.unlp.edu.ar
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Growth inhibition of <i>Beauveria bassiana</i> by bacteria isolated from the cuticular surface of the corn leafhopper, <i>Dalbulus maidis</i> and the planthopper, <i>Delphacodes ku...

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