|
|
Registros recuperados : 1 | |
1. | | BARROS, R. de A.; VITAL, C. E.; SILVA JÚNIOR, N. R.; VARGAS, M. A. S.; MONTEIRO, L. P.; FAUSTINO, V. A.; AUAD, A. M.; PEREIRA, J. F.; OLIVEIRA, E. E. de; RAMOS, H. J. O.; OLIVEIRA, M. G. de A. Differential defense responses of tropical grasses to Mahanarva spectabilis (Hemiptera: Cercopidae) infestation. Anais da Academia Brasileira de Ciências, v. 93, n. 3, e20191456, 2021. Biblioteca(s): Embrapa Gado de Leite. |
| |
Registros recuperados : 1 | |
|
|
Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
12/09/2021 |
Data da última atualização: |
07/12/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
BARROS, R. de A.; VITAL, C. E.; SILVA JÚNIOR, N. R.; VARGAS, M. A. S.; MONTEIRO, L. P.; FAUSTINO, V. A.; AUAD, A. M.; PEREIRA, J. F.; OLIVEIRA, E. E. de; RAMOS, H. J. O.; OLIVEIRA, M. G. de A. |
Afiliação: |
RAFAEL DE A. BARROS, Universidade Federal de Viçosa; CAMILO E. VITAL, Universidade Federal de Viçosa; NEILIER R. SILVA JÚNIOR, Universidade Federal de Viçosa; MANUEL A. S. VARGAS, Universidade Federal de Viçosa; LUANA P. MONTEIRO, Universidade Federal de Viçosa; VERONICA A. FAUSTINO, Universidade Federal de Viçosa; ALEXANDER MACHADO AUAD, CNPGL; JORGE FERNANDO PEREIRA, CNPGL; EUGENIO E. DE OLIVEIRA, Universidade Federal de Viçosa; HUMBERTO J. O. RAMOS, Universidade Federal de Viçosa; MARIA GORETI DE A. OLIVEIRA, Universidade Federal de Viçosa. |
Título: |
Differential defense responses of tropical grasses to Mahanarva spectabilis (Hemiptera: Cercopidae) infestation. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Anais da Academia Brasileira de Ciências, v. 93, n. 3, e20191456, 2021. |
DOI: |
https://doi.org/10.1590/0001-3765202120191456 |
Idioma: |
Inglês |
Conteúdo: |
The spittlebugs Mahanarva spectabilis economically challenges cattle production of neotropical regions, due to its voracious feeding on tropical grasses. Here, we evaluated biochemical responses of the interaction between M. spectabilis and the widely cultivated tropical grasses Brachiaria spp. (i.e., brizantha and decumbens) and elephant grasses (cvs. Roxo de Botucatu and Pioneiro), regarding lipoxygenases, protease inhibitors, phytohormones, and proteolytic activities in the midgut of M. spectabilis. The M. spectabilis-infested grasses increased lipoxygenases activity, except for cv. Pioneiro. The levels of the phytohormones jasmonic and abscisic acids were similarly low in all genotypes and increased under herbivory. Furthermore, salicylic acid concentration was constitutively higher in Brachiaria sp., increasing only in spittlebug-infested B. decumbens. M. spectabilis infestations did not induce increases of protease inhibitors in any forage grass type. The trypsin activity remained unaltered, and the total proteolytic activity increased only in B decumbens-fed insects. Our findings revealed that most forage grasses exposed to spittlebugs activate the lipoxygenases pathway, resulting in increased abscisic and jasmonic acids. However, greater amounts of these hormones do not induce protease inhibitory activity in response to spittlebug attack. This knowledge certainly helps to guide future projects aiming at reducing the impact of spittlebugs on forage production. |
Thesagro: |
Cigarrinha das Pastagens; Hormônio; Inseto; Intestino; Pastagem; Protease. |
Thesaurus NAL: |
Hormones; Insects; Midgut. |
Categoria do assunto: |
O Insetos e Entomologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/226029/1/Differential-defense.pdf
|
Marc: |
LEADER 02557naa a2200361 a 4500 001 2134243 005 2021-12-07 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1590/0001-3765202120191456$2DOI 100 1 $aBARROS, R. de A. 245 $aDifferential defense responses of tropical grasses to Mahanarva spectabilis (Hemiptera$bCercopidae) infestation.$h[electronic resource] 260 $c2021 520 $aThe spittlebugs Mahanarva spectabilis economically challenges cattle production of neotropical regions, due to its voracious feeding on tropical grasses. Here, we evaluated biochemical responses of the interaction between M. spectabilis and the widely cultivated tropical grasses Brachiaria spp. (i.e., brizantha and decumbens) and elephant grasses (cvs. Roxo de Botucatu and Pioneiro), regarding lipoxygenases, protease inhibitors, phytohormones, and proteolytic activities in the midgut of M. spectabilis. The M. spectabilis-infested grasses increased lipoxygenases activity, except for cv. Pioneiro. The levels of the phytohormones jasmonic and abscisic acids were similarly low in all genotypes and increased under herbivory. Furthermore, salicylic acid concentration was constitutively higher in Brachiaria sp., increasing only in spittlebug-infested B. decumbens. M. spectabilis infestations did not induce increases of protease inhibitors in any forage grass type. The trypsin activity remained unaltered, and the total proteolytic activity increased only in B decumbens-fed insects. Our findings revealed that most forage grasses exposed to spittlebugs activate the lipoxygenases pathway, resulting in increased abscisic and jasmonic acids. However, greater amounts of these hormones do not induce protease inhibitory activity in response to spittlebug attack. This knowledge certainly helps to guide future projects aiming at reducing the impact of spittlebugs on forage production. 650 $aHormones 650 $aInsects 650 $aMidgut 650 $aCigarrinha das Pastagens 650 $aHormônio 650 $aInseto 650 $aIntestino 650 $aPastagem 650 $aProtease 700 1 $aVITAL, C. E. 700 1 $aSILVA JÚNIOR, N. R. 700 1 $aVARGAS, M. A. S. 700 1 $aMONTEIRO, L. P. 700 1 $aFAUSTINO, V. A. 700 1 $aAUAD, A. M. 700 1 $aPEREIRA, J. F. 700 1 $aOLIVEIRA, E. E. de 700 1 $aRAMOS, H. J. O. 700 1 $aOLIVEIRA, M. G. de A. 773 $tAnais da Academia Brasileira de Ciências$gv. 93, n. 3, e20191456, 2021.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|