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dc.contributor.author
da Silva, Rodrigo Alves
dc.contributor.author
Quintela, Eliane Dias
dc.contributor.author
Mascarin, Gabriel Moura
dc.contributor.author
Pedrini, Nicolás
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dc.contributor.author
Lião, Luciano Moraes
dc.contributor.author
Ferri, Pedro Henrique
dc.date.available
2020-03-18T18:31:17Z
dc.date.issued
2015-05
dc.identifier.citation
da Silva, Rodrigo Alves; Quintela, Eliane Dias; Mascarin, Gabriel Moura; Pedrini, Nicolás; Lião, Luciano Moraes; et al.; Unveiling chemical defense in the rice stalk stink bug against the entomopathogenic fungus Metarhizium anisopliae; Academic Press Inc Elsevier Science; Journal of Invertebrate Pathology; 127; 5-2015; 93-100
dc.identifier.issn
0022-2011
dc.identifier.uri
http://hdl.handle.net/11336/100088
dc.description.abstract
Eggs, nymphs (1st-5th instar) and adults of Tibraca limbativentris were challenged by conidial suspensions of its major fungal pathogen Metarhizium anisopliae in order to assess their susceptibility. The role of chemical defensive compounds from exocrine secretions produced by both nymphs and adults were examined for their participation on M. anisopliae infection. Although insect susceptibility to M. anisopliae followed a dose-dependent manner, adults followed by older nymphs displayed the highest resistance. Eggs were highly susceptible showing >96% fungal infection. Crude extracts isolated from metathoracic scent gland and dorsal abdominal glands of adults and nymphs, respectively, showed fungistatic effects by impairing spore germination, vegetative growth and sporulation. Gas chromatography-mass spectrometry analysis of these extracts revealed that the major components were short-chain hydrocarbons (C10-13) and unsaturated aldehydes. In vitro tests with the corresponding synthetic standards indicated compounds with greater antifungal activity including (E)-2-hexenal, (E)-2-octenal, and (E)-2-decenal, with the latter being the most deleterious to fungal fitness. We demonstrated that differential susceptibility of the rice stalk stink bug to M. anisopliae infection is age-specific and partly mediated by fungistatic properties of aldehydes, which are produced by scent glands of both nymphs and adults.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Academic Press Inc Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ALLELOCHEMICALS
dc.subject
CHEMICAL ECOLOGY
dc.subject
CLAVICIPITACEAE
dc.subject
ORYZA SATIVA
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TIBRACA LIMBATIVENTRIS
dc.subject
VIRULENCE
dc.subject.classification
Bioquímica y Biología Molecular
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Unveiling chemical defense in the rice stalk stink bug against the entomopathogenic fungus Metarhizium anisopliae
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-03-16T14:06:38Z
dc.journal.volume
127
dc.journal.pagination
93-100
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: da Silva, Rodrigo Alves. Instituto Federal de Brasília; Brasil
dc.description.fil
Fil: Quintela, Eliane Dias. Ministerio da Agricultura Pecuaria e Abastecimento de Brasil. Empresa Brasileira de Pesquisa Agropecuaria; Brasil
dc.description.fil
Fil: Mascarin, Gabriel Moura. Ministerio da Agricultura Pecuaria e Abastecimento de Brasil. Empresa Brasileira de Pesquisa Agropecuaria; Brasil
dc.description.fil
Fil: Pedrini, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner"; Argentina
dc.description.fil
Fil: Lião, Luciano Moraes. Universidade Federal de Goiás; Brasil
dc.description.fil
Fil: Ferri, Pedro Henrique. Universidade Federal de Goiás; Brasil
dc.journal.title
Journal of Invertebrate Pathology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022201115000646
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jip.2015.03.009
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