Histopathology caused by the entomopathogenic fungi, Beauveria bassiana and Metarhizium anisopliae, in the adult planthopper, Peregrinus maidis, a maize virus...

Autores: Toledo, Andrea Vanesa; Marino de Remes Lenicov, Ana María; López Lastra, Claudia Cristina
Año de publicación: 2010
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: The planthopper Peregrinus maidis (Ashmead) (Hemiptera: Delphacidae) is an important vector of maize viruses in tropical and subtropical areas. Planthoppers are biologically controlled with several species of entomopathogenic fungi that have been isolated from these insect pests of rice in Asia. Beauveria bassiana (Balsamo-Crivelli) Vuillemin and Metarhizium anisopliae (Metschnikoff) Sorokin (Hypocreales: Clavicipitaceae) appear to be the most useful against planthoppers because of their ease of mass production, storage, virulence, and application. In the present study, adults of P. maidis infected with B. bassiana and M. anisopliae were observed under light and scanning electron microscopy to characterize morphologically the process of infection and the development of these fungi, prior to and after the death of the host. The hydrophobic conidia of both fungal species were able to attach to all body regions, with a preference for surfaces containing hairs. Few germinated conidia were observed on the insect's body surface at 24, 48, and 72 hr post-inoculation. On the cuticular surface of P. maidis treated with B. bassiana and M. anisopliae, bacillus-like bacteria were observed. These microorganisms could be interacting with fungal conidia, playing a role of antibiosis that will not allow the fungal pathogens to germinate and penetrate. In the colonization events observed in this study, the formation and multiplication of hyphal bodies by both fungal species inside the host's body was noted. The host's whole body was invaded by hyphae between five and six days post-inoculation, and body fat was the most affected tissue.
Centro de Investigaciones en Fitopatología
Centro de Estudios Parasitológicos y de Vectores
Materia: Ciencias Agrarias
antagonistic bacteria
pests of cereal crops
Nivel de accesibilidad: acceso abierto
Condiciones de uso: http://creativecommons.org/licenses/by/3.0/
Repositorio
Institución: Universidad Nacional de La Plata
OAI Identificador: oai:sedici.unlp.edu.ar:10915/123676

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spelling	Histopathology caused by the entomopathogenic fungi, <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i>, in the adult planthopper, <i>Peregrinus maidis</i>, a maize virus vectorToledo, Andrea VanesaMarino de Remes Lenicov, Ana MaríaLópez Lastra, Claudia CristinaCiencias Agrariasantagonistic bacteriapests of cereal cropsThe planthopper Peregrinus maidis (Ashmead) (Hemiptera: Delphacidae) is an important vector of maize viruses in tropical and subtropical areas. Planthoppers are biologically controlled with several species of entomopathogenic fungi that have been isolated from these insect pests of rice in Asia. Beauveria bassiana (Balsamo-Crivelli) Vuillemin and Metarhizium anisopliae (Metschnikoff) Sorokin (Hypocreales: Clavicipitaceae) appear to be the most useful against planthoppers because of their ease of mass production, storage, virulence, and application. In the present study, adults of P. maidis infected with B. bassiana and M. anisopliae were observed under light and scanning electron microscopy to characterize morphologically the process of infection and the development of these fungi, prior to and after the death of the host. The hydrophobic conidia of both fungal species were able to attach to all body regions, with a preference for surfaces containing hairs. Few germinated conidia were observed on the insect's body surface at 24, 48, and 72 hr post-inoculation. On the cuticular surface of P. maidis treated with B. bassiana and M. anisopliae, bacillus-like bacteria were observed. These microorganisms could be interacting with fungal conidia, playing a role of antibiosis that will not allow the fungal pathogens to germinate and penetrate. In the colonization events observed in this study, the formation and multiplication of hyphal bodies by both fungal species inside the host's body was noted. The host's whole body was invaded by hyphae between five and six days post-inoculation, and body fat was the most affected tissue.Centro de Investigaciones en FitopatologíaCentro de Estudios Parasitológicos y de Vectores2010info: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/10915/123676enginfo:eu-repo/semantics/altIdentifier/issn/1536-2442info:eu-repo/semantics/altIdentifier/pmid/20578956info:eu-repo/semantics/altIdentifier/doi/10.1673/031.010.3501info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/Creative Commons Attribution 3.0 Unported (CC BY 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:10:25Zoai:sedici.unlp.edu.ar:10915/123676Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:10:25.48SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv	Histopathology caused by the entomopathogenic fungi, <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i>, in the adult planthopper, <i>Peregrinus maidis</i>, a maize virus vector
title	Histopathology caused by the entomopathogenic fungi, <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i>, in the adult planthopper, <i>Peregrinus maidis</i>, a maize virus vector
spellingShingle	Histopathology caused by the entomopathogenic fungi, <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i>, in the adult planthopper, <i>Peregrinus maidis</i>, a maize virus vector Toledo, Andrea Vanesa Ciencias Agrarias antagonistic bacteria pests of cereal crops
title_short	Histopathology caused by the entomopathogenic fungi, <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i>, in the adult planthopper, <i>Peregrinus maidis</i>, a maize virus vector
title_full	Histopathology caused by the entomopathogenic fungi, <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i>, in the adult planthopper, <i>Peregrinus maidis</i>, a maize virus vector
title_fullStr	Histopathology caused by the entomopathogenic fungi, <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i>, in the adult planthopper, <i>Peregrinus maidis</i>, a maize virus vector
title_full_unstemmed	Histopathology caused by the entomopathogenic fungi, <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i>, in the adult planthopper, <i>Peregrinus maidis</i>, a maize virus vector
title_sort	Histopathology caused by the entomopathogenic fungi, <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i>, in the adult planthopper, <i>Peregrinus maidis</i>, a maize virus vector
dc.creator.none.fl_str_mv	Toledo, Andrea Vanesa Marino de Remes Lenicov, Ana María López Lastra, Claudia Cristina
author	Toledo, Andrea Vanesa
author_facet	Toledo, Andrea Vanesa Marino de Remes Lenicov, Ana María López Lastra, Claudia Cristina
author_role	author
author2	Marino de Remes Lenicov, Ana María López Lastra, Claudia Cristina
author2_role	author author
dc.subject.none.fl_str_mv	Ciencias Agrarias antagonistic bacteria pests of cereal crops
topic	Ciencias Agrarias antagonistic bacteria pests of cereal crops
dc.description.none.fl_txt_mv	The planthopper Peregrinus maidis (Ashmead) (Hemiptera: Delphacidae) is an important vector of maize viruses in tropical and subtropical areas. Planthoppers are biologically controlled with several species of entomopathogenic fungi that have been isolated from these insect pests of rice in Asia. Beauveria bassiana (Balsamo-Crivelli) Vuillemin and Metarhizium anisopliae (Metschnikoff) Sorokin (Hypocreales: Clavicipitaceae) appear to be the most useful against planthoppers because of their ease of mass production, storage, virulence, and application. In the present study, adults of P. maidis infected with B. bassiana and M. anisopliae were observed under light and scanning electron microscopy to characterize morphologically the process of infection and the development of these fungi, prior to and after the death of the host. The hydrophobic conidia of both fungal species were able to attach to all body regions, with a preference for surfaces containing hairs. Few germinated conidia were observed on the insect's body surface at 24, 48, and 72 hr post-inoculation. On the cuticular surface of P. maidis treated with B. bassiana and M. anisopliae, bacillus-like bacteria were observed. These microorganisms could be interacting with fungal conidia, playing a role of antibiosis that will not allow the fungal pathogens to germinate and penetrate. In the colonization events observed in this study, the formation and multiplication of hyphal bodies by both fungal species inside the host's body was noted. The host's whole body was invaded by hyphae between five and six days post-inoculation, and body fat was the most affected tissue. Centro de Investigaciones en Fitopatología Centro de Estudios Parasitológicos y de Vectores
description	The planthopper Peregrinus maidis (Ashmead) (Hemiptera: Delphacidae) is an important vector of maize viruses in tropical and subtropical areas. Planthoppers are biologically controlled with several species of entomopathogenic fungi that have been isolated from these insect pests of rice in Asia. Beauveria bassiana (Balsamo-Crivelli) Vuillemin and Metarhizium anisopliae (Metschnikoff) Sorokin (Hypocreales: Clavicipitaceae) appear to be the most useful against planthoppers because of their ease of mass production, storage, virulence, and application. In the present study, adults of P. maidis infected with B. bassiana and M. anisopliae were observed under light and scanning electron microscopy to characterize morphologically the process of infection and the development of these fungi, prior to and after the death of the host. The hydrophobic conidia of both fungal species were able to attach to all body regions, with a preference for surfaces containing hairs. Few germinated conidia were observed on the insect's body surface at 24, 48, and 72 hr post-inoculation. On the cuticular surface of P. maidis treated with B. bassiana and M. anisopliae, bacillus-like bacteria were observed. These microorganisms could be interacting with fungal conidia, playing a role of antibiosis that will not allow the fungal pathogens to germinate and penetrate. In the colonization events observed in this study, the formation and multiplication of hyphal bodies by both fungal species inside the host's body was noted. The host's whole body was invaded by hyphae between five and six days post-inoculation, and body fat was the most affected tissue.
publishDate	2010
dc.date.none.fl_str_mv	2010
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
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dc.identifier.none.fl_str_mv	http://sedici.unlp.edu.ar/handle/10915/123676
url	http://sedici.unlp.edu.ar/handle/10915/123676
dc.language.none.fl_str_mv	eng
language	eng
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dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported (CC BY 3.0)
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Histopathology caused by the entomopathogenic fungi, <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i>, in the adult planthopper, <i>Peregrinus maidis</i>, a maize virus...

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