Virulence and enzymatic activity of three new isolates of <i>Beauveria bassiana</i> (Ascomycota: Hypocreales) from the South American locust <i>Schistocerca cancellata</i> (Orthopt...

Autores
Pelizza, Sebastián Alberto; Medina, Héctor Emilio; Ferreri, Natalia Analía; Elíades, Lorena Alejandra; Pocco, Martina Eugenia; Stenglein, Sebastián Alberto; Lange, Carlos Ernesto
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Schistocerca cancellata is a large-sized acridid, which has historically represented the greatest agricultural problem in southern South America, causing serious economic losses. Since 2015 S. cancellata entered in a state of outbreak condition of historical proportions, producing frequent and large swarms of up to 25 km2 in the north and central region of Argentina and areas of neigh boring Bolivia and Paraguay. At present, chemical insecticides are still the only means available for the control of S. cancellata. We analyzed under laboratory conditions the effectiveness of three fungal strains of Beauveria bassiana isolated from S. cancellata and also determined the relationship between chitinase, protease, and lipase levels at different temperatures of these fungi and their insecticidal activities. The pathogenicity assays were carried out by the sprayed method with concentrations of 1 × 104, 1 × 106 and 1 × 108 conidia/ml. We observed that isolate LPSc 1227 caused the highest mortality at each dose studied, ranging from 100% at a dose of 1 × 108 conidia/ml to 33.3 ± 3.2% at the lowest dose of 1 × 104 conidia/ml. Moreover, in this isolate the highest values of chitinolytic and proteolytic activity were recorded (2.31 ± 0.31 and 1.78 ± 0.04), respectively.
Centro de Estudios Parasitológicos y de Vectores
Instituto de Botánica "Dr. Carlos Spegazzini"
Materia
Biología
Beauveria bassiana
Entomopatogenic fungi
Enzymatic activity
Locust
Mortality
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/87620
Acceder
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network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Virulence and enzymatic activity of three new isolates of <i>Beauveria bassiana</i> (Ascomycota: Hypocreales) from the South American locust <i>Schistocerca cancellata</i> (Orthoptera: Acrididae)Pelizza, Sebastián AlbertoMedina, Héctor EmilioFerreri, Natalia AnalíaElíades, Lorena AlejandraPocco, Martina EugeniaStenglein, Sebastián AlbertoLange, Carlos ErnestoBiologíaBeauveria bassianaEntomopatogenic fungiEnzymatic activityLocustMortalitySchistocerca cancellata is a large-sized acridid, which has historically represented the greatest agricultural problem in southern South America, causing serious economic losses. Since 2015 S. cancellata entered in a state of outbreak condition of historical proportions, producing frequent and large swarms of up to 25 km2 in the north and central region of Argentina and areas of neigh boring Bolivia and Paraguay. At present, chemical insecticides are still the only means available for the control of S. cancellata. We analyzed under laboratory conditions the effectiveness of three fungal strains of Beauveria bassiana isolated from S. cancellata and also determined the relationship between chitinase, protease, and lipase levels at different temperatures of these fungi and their insecticidal activities. The pathogenicity assays were carried out by the sprayed method with concentrations of 1 × 104, 1 × 106 and 1 × 108 conidia/ml. We observed that isolate LPSc 1227 caused the highest mortality at each dose studied, ranging from 100% at a dose of 1 × 108 conidia/ml to 33.3 ± 3.2% at the lowest dose of 1 × 104 conidia/ml. Moreover, in this isolate the highest values of chitinolytic and proteolytic activity were recorded (2.31 ± 0.31 and 1.78 ± 0.04), respectively.Centro de Estudios Parasitológicos y de VectoresInstituto de Botánica "Dr. Carlos Spegazzini"2017info: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/10915/87620enginfo:eu-repo/semantics/altIdentifier/issn/1018-3647info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jksus.2017.11.006info: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:UNLP2025-09-29T11:17:18Zoai:sedici.unlp.edu.ar:10915/87620Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:17:19.122SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Virulence and enzymatic activity of three new isolates of <i>Beauveria bassiana</i> (Ascomycota: Hypocreales) from the South American locust <i>Schistocerca cancellata</i> (Orthoptera: Acrididae)
title Virulence and enzymatic activity of three new isolates of <i>Beauveria bassiana</i> (Ascomycota: Hypocreales) from the South American locust <i>Schistocerca cancellata</i> (Orthoptera: Acrididae)
spellingShingle Virulence and enzymatic activity of three new isolates of <i>Beauveria bassiana</i> (Ascomycota: Hypocreales) from the South American locust <i>Schistocerca cancellata</i> (Orthoptera: Acrididae)
Pelizza, Sebastián Alberto
Biología
Beauveria bassiana
Entomopatogenic fungi
Enzymatic activity
Locust
Mortality
title_short Virulence and enzymatic activity of three new isolates of <i>Beauveria bassiana</i> (Ascomycota: Hypocreales) from the South American locust <i>Schistocerca cancellata</i> (Orthoptera: Acrididae)
title_full Virulence and enzymatic activity of three new isolates of <i>Beauveria bassiana</i> (Ascomycota: Hypocreales) from the South American locust <i>Schistocerca cancellata</i> (Orthoptera: Acrididae)
title_fullStr Virulence and enzymatic activity of three new isolates of <i>Beauveria bassiana</i> (Ascomycota: Hypocreales) from the South American locust <i>Schistocerca cancellata</i> (Orthoptera: Acrididae)
title_full_unstemmed Virulence and enzymatic activity of three new isolates of <i>Beauveria bassiana</i> (Ascomycota: Hypocreales) from the South American locust <i>Schistocerca cancellata</i> (Orthoptera: Acrididae)
title_sort Virulence and enzymatic activity of three new isolates of <i>Beauveria bassiana</i> (Ascomycota: Hypocreales) from the South American locust <i>Schistocerca cancellata</i> (Orthoptera: Acrididae)
dc.creator.none.fl_str_mv Pelizza, Sebastián Alberto
Medina, Héctor Emilio
Ferreri, Natalia Analía
Elíades, Lorena Alejandra
Pocco, Martina Eugenia
Stenglein, Sebastián Alberto
Lange, Carlos Ernesto
author Pelizza, Sebastián Alberto
author_facet Pelizza, Sebastián Alberto
Medina, Héctor Emilio
Ferreri, Natalia Analía
Elíades, Lorena Alejandra
Pocco, Martina Eugenia
Stenglein, Sebastián Alberto
Lange, Carlos Ernesto
author_role author
author2 Medina, Héctor Emilio
Ferreri, Natalia Analía
Elíades, Lorena Alejandra
Pocco, Martina Eugenia
Stenglein, Sebastián Alberto
Lange, Carlos Ernesto
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Biología
Beauveria bassiana
Entomopatogenic fungi
Enzymatic activity
Locust
Mortality
topic Biología
Beauveria bassiana
Entomopatogenic fungi
Enzymatic activity
Locust
Mortality
dc.description.none.fl_txt_mv Schistocerca cancellata is a large-sized acridid, which has historically represented the greatest agricultural problem in southern South America, causing serious economic losses. Since 2015 S. cancellata entered in a state of outbreak condition of historical proportions, producing frequent and large swarms of up to 25 km2 in the north and central region of Argentina and areas of neigh boring Bolivia and Paraguay. At present, chemical insecticides are still the only means available for the control of S. cancellata. We analyzed under laboratory conditions the effectiveness of three fungal strains of Beauveria bassiana isolated from S. cancellata and also determined the relationship between chitinase, protease, and lipase levels at different temperatures of these fungi and their insecticidal activities. The pathogenicity assays were carried out by the sprayed method with concentrations of 1 × 104, 1 × 106 and 1 × 108 conidia/ml. We observed that isolate LPSc 1227 caused the highest mortality at each dose studied, ranging from 100% at a dose of 1 × 108 conidia/ml to 33.3 ± 3.2% at the lowest dose of 1 × 104 conidia/ml. Moreover, in this isolate the highest values of chitinolytic and proteolytic activity were recorded (2.31 ± 0.31 and 1.78 ± 0.04), respectively.
Centro de Estudios Parasitológicos y de Vectores
Instituto de Botánica "Dr. Carlos Spegazzini"
description Schistocerca cancellata is a large-sized acridid, which has historically represented the greatest agricultural problem in southern South America, causing serious economic losses. Since 2015 S. cancellata entered in a state of outbreak condition of historical proportions, producing frequent and large swarms of up to 25 km2 in the north and central region of Argentina and areas of neigh boring Bolivia and Paraguay. At present, chemical insecticides are still the only means available for the control of S. cancellata. We analyzed under laboratory conditions the effectiveness of three fungal strains of Beauveria bassiana isolated from S. cancellata and also determined the relationship between chitinase, protease, and lipase levels at different temperatures of these fungi and their insecticidal activities. The pathogenicity assays were carried out by the sprayed method with concentrations of 1 × 104, 1 × 106 and 1 × 108 conidia/ml. We observed that isolate LPSc 1227 caused the highest mortality at each dose studied, ranging from 100% at a dose of 1 × 108 conidia/ml to 33.3 ± 3.2% at the lowest dose of 1 × 104 conidia/ml. Moreover, in this isolate the highest values of chitinolytic and proteolytic activity were recorded (2.31 ± 0.31 and 1.78 ± 0.04), respectively.
publishDate 2017
dc.date.none.fl_str_mv 2017
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/10915/87620
url http://sedici.unlp.edu.ar/handle/10915/87620
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1018-3647
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jksus.2017.11.006
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
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