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| 1. |  | MULLER, J. D. A. I.; FERNANDES, C. D.; MALLMANN, G.; VERZIGNASSI, J. R.; QUEIRÓZ, C. D. A.; CONTI, B. P.; BATISTA, M. V. Efeito do ácido sulfúrico no controle de fungos associados e na viabilidade de sementes de Brachiaria brizantha cv. Marandu In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 46.; REUNIÃO BRASILEIRA DE CONTROLE BIOLÓGICO, 11., 2013, Ouro Preto. Ouro Preto: UFV, 2013.| Biblioteca(s): Embrapa Gado de Corte. |
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| 2. | | FERNANDES, C. D.; QUEIRÓZ, C. D. A.; VERZIGNASSI, J. R.; MALLMANN, G.; BATISTA, M. V.; MULLER, J. D. A. I.; CONTI, B. P.; FALCO, J. D. S.; QUETEZ, F. A. Reação de acessos de Stylosanthes guianensis à Pratylenchus brachyurus In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 46.; REUNIÃO BRASILEIRA DE CONTROLE BIOLÓGICO, 11., 2013, Ouro Preto. Ouro Preto: UFV, 2013.| Biblioteca(s): Embrapa Gado de Corte. |
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| Registros recuperados : 2 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
05/04/2022 |
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Data da última atualização: |
06/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
FIPKE, M. V.; FEIJÓ, A. da R.; GARCIA, N. S.; HECK, T.; VIANA, V. E.; DAYAN, F. E.; AGOSTINETTO, D.; LAMEGO, F. P.; SOUZA, G. M.; CAMARGO, E. R.; AVILA, L. A. de. |
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Afiliação: |
MARCUS VINÍCIUS FIPKE, UFPEL; ANDERSON DA ROSA FEIJÓ, UFPEL; NATÁLIA SILVA GARCIA, UFPEL; TAMARA HECK, UFPEL; VÍVIAN EBELING VIANA, UFPEL; FRANCK EMMANUEL DAYAN, Colorado State University; DIRCEU AGOSTINETTO, UFPEL; FABIANE PINTO LAMEGO, CPPSUL; GUSTAVO MAIA SOUZA, UFPEL; EDINALVO RABAIOLI CAMARGO, UFPEL; LUIS ANTONIO DE AVILA, UFPEL. |
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Título: |
Transgenerational effect of drought stress and sub-lethal doses of quizalofop-p-ethyl: decreasing sensitivity to herbicide and biochemical adjustment in Eragrostis plana. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Agriculture, v. 12, n. 3, 396, Mar. 2022. |
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DOI: |
https://doi.org/10.3390/agriculture12030396 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: (1) Background: Eragrostis plana Ness is a invasive C4 perennial grass in South America and very adaptable to environmental stresses. Our hypothesis is that there is a transgenerational cross-talk between environmental stresses and weed response to herbicides. This study?s objectives were to: (1) evaluate if E. plana primed by drought stress (DRY), a sub-lethal dose of quizalofop-p-ethyl (QPE), or a combination of both drought and herbicide stresses (DRY QPE), produce a progeny with decreased sensitivity to quizalofop and (2) investigate the potential mechanisms involved in this adaptation; (2) Methods: A population of E. plana was isolatedly submitted to treatments for drought, quizalofop or drought plus quizalofop for two generations. The progenies were analyzed for sensitivity to the herbicide quizalofop and performed biochemical, chromatographic and molecular analyses.; (3) Results: In the G2 generation, the quizalofop-treated CHK population had reduced stomatal conductance and increased hydrogen peroxide and lipid peroxidation. On the other hand, there was no change in stomatal conductance, hydrogen peroxide level, and lipid peroxidation in the quizalofop-treated DRY population. In addition, this population had increased antioxidant enzyme activity and upregulated CYP72A31 and CYP81A12 expression, which was accompanied by reduced quizalofop-p-ethyl concentrations; (4) Conclusions: E. plana demonstrated a capacity for transgenerational adaptation to abiotic stresses, with the population exposed to drought stress (DRY) becoming less sensitive to quizalofop-p-ethyl treatment. MenosAbstract: (1) Background: Eragrostis plana Ness is a invasive C4 perennial grass in South America and very adaptable to environmental stresses. Our hypothesis is that there is a transgenerational cross-talk between environmental stresses and weed response to herbicides. This study?s objectives were to: (1) evaluate if E. plana primed by drought stress (DRY), a sub-lethal dose of quizalofop-p-ethyl (QPE), or a combination of both drought and herbicide stresses (DRY QPE), produce a progeny with decreased sensitivity to quizalofop and (2) investigate the potential mechanisms involved in this adaptation; (2) Methods: A population of E. plana was isolatedly submitted to treatments for drought, quizalofop or drought plus quizalofop for two generations. The progenies were analyzed for sensitivity to the herbicide quizalofop and performed biochemical, chromatographic and molecular analyses.; (3) Results: In the G2 generation, the quizalofop-treated CHK population had reduced stomatal conductance and increased hydrogen peroxide and lipid peroxidation. On the other hand, there was no change in stomatal conductance, hydrogen peroxide level, and lipid peroxidation in the quizalofop-treated DRY population. In addition, this population had increased antioxidant enzyme activity and upregulated CYP72A31 and CYP81A12 expression, which was accompanied by reduced quizalofop-p-ethyl concentrations; (4) Conclusions: E. plana demonstrated a capacity for transgenerational adaptation to abiotic str... Mostrar Tudo |
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Thesagro: |
Capim Annoni; Erva Daninha. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1141889/1/agriculture-12-00396-v2-1.pdf
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Marc: |
LEADER 02494naa a2200277 a 4500
001 2141889
005 2022-04-06
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/agriculture12030396$2DOI
100 1 $aFIPKE, M. V.
245 $aTransgenerational effect of drought stress and sub-lethal doses of quizalofop-p-ethyl$bdecreasing sensitivity to herbicide and biochemical adjustment in Eragrostis plana.$h[electronic resource]
260 $c2022
520 $aAbstract: (1) Background: Eragrostis plana Ness is a invasive C4 perennial grass in South America and very adaptable to environmental stresses. Our hypothesis is that there is a transgenerational cross-talk between environmental stresses and weed response to herbicides. This study?s objectives were to: (1) evaluate if E. plana primed by drought stress (DRY), a sub-lethal dose of quizalofop-p-ethyl (QPE), or a combination of both drought and herbicide stresses (DRY QPE), produce a progeny with decreased sensitivity to quizalofop and (2) investigate the potential mechanisms involved in this adaptation; (2) Methods: A population of E. plana was isolatedly submitted to treatments for drought, quizalofop or drought plus quizalofop for two generations. The progenies were analyzed for sensitivity to the herbicide quizalofop and performed biochemical, chromatographic and molecular analyses.; (3) Results: In the G2 generation, the quizalofop-treated CHK population had reduced stomatal conductance and increased hydrogen peroxide and lipid peroxidation. On the other hand, there was no change in stomatal conductance, hydrogen peroxide level, and lipid peroxidation in the quizalofop-treated DRY population. In addition, this population had increased antioxidant enzyme activity and upregulated CYP72A31 and CYP81A12 expression, which was accompanied by reduced quizalofop-p-ethyl concentrations; (4) Conclusions: E. plana demonstrated a capacity for transgenerational adaptation to abiotic stresses, with the population exposed to drought stress (DRY) becoming less sensitive to quizalofop-p-ethyl treatment.
650 $aCapim Annoni
650 $aErva Daninha
700 1 $aFEIJÓ, A. da R.
700 1 $aGARCIA, N. S.
700 1 $aHECK, T.
700 1 $aVIANA, V. E.
700 1 $aDAYAN, F. E.
700 1 $aAGOSTINETTO, D.
700 1 $aLAMEGO, F. P.
700 1 $aSOUZA, G. M.
700 1 $aCAMARGO, E. R.
700 1 $aAVILA, L. A. de
773 $tAgriculture$gv. 12, n. 3, 396, Mar. 2022.
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Embrapa Pecuária Sul (CPPSUL) |
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