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Registro Completo |
Biblioteca(s): |
Embrapa Café. |
Data corrente: |
18/11/2020 |
Data da última atualização: |
18/11/2020 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
MAIA, F. M.; MARTINATI, J. C.; PADILHA, L.; GUERREIRO FILHO, O.; MALUF, M. P. |
Afiliação: |
FERNANDA MAGALHÃES MAIA, IAC; JULIANA CAMARGO MARTINATI, IAC; LILIAN PADILHA, CNPCa; OLIVEIRO GUERREIRO FILHO, IAC; MIRIAN PEREZ MALUF, CNPCa. |
Título: |
Gene expression during response to nutrient deficiency in leaf-miner resistant and susceptible genotypes. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 25., 2014, Armenia. Leveraging knowledge for coffee sustainability: proceedings. Armenia: Association for Science and Information on Coffee, 2014. p. 262. |
Idioma: |
Inglês |
Conteúdo: |
Several physiologic factors affect the defense response of coffee trees to the leaf-miner (Leucoptera coffeella), including nutrient availability during plant growth. Resistant coffee plants may exhibit leaf-miner infection when field nutritional status is critical. Knowledge of how biological mechanisms associated with transport of macronutrients and defense to leaf-miner infection interact may provide insights to elucidate the resistance response. In this study, we investigated the expression profile of genes from potassium and nitrogen metabolism, oxidative stress and defense response, in coffee seedlings submitted to limiting nutritional conditions. Young plants from both resistant and susceptible genotypes were irrigated with solutions containing variable macronutrients (N+K+, N+K-, NK+, NK-). After treatment, leaves were collected, total RNA extracted and gene expression was evaluated by qRT-PCR. All assessed genes exhibited differential expression between susceptible and resistant plants in response to nutritional stress. In addition, genes directly involved with defense mechanisms and oxidative stress exhibited the most significant expression differences when compared with genes from nutrient metabolism. These preliminary analyses suggest that regulation of nutrient up-take and/or transport may not play a central role during coffee response, and instead the activation of defense mechanisms is the initial response to low nutrient availability |
Thesagro: |
Defesa Vegetal; Nutrição Vegetal; Nutriente Mineral. |
Thesaurus Nal: |
Defense mechanisms; Minerals; Nutrient utilization. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217953/1/PB227.pdf
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Marc: |
LEADER 02333nam a2200229 a 4500 001 2126761 005 2020-11-18 008 2014 bl uuuu u00u1 u #d 100 1 $aMAIA, F. M. 245 $aGene expression during response to nutrient deficiency in leaf-miner resistant and susceptible genotypes.$h[electronic resource] 260 $aIn: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 25., 2014, Armenia. Leveraging knowledge for coffee sustainability: proceedings. Armenia: Association for Science and Information on Coffee, 2014. p. 262.$c2014 520 $aSeveral physiologic factors affect the defense response of coffee trees to the leaf-miner (Leucoptera coffeella), including nutrient availability during plant growth. Resistant coffee plants may exhibit leaf-miner infection when field nutritional status is critical. Knowledge of how biological mechanisms associated with transport of macronutrients and defense to leaf-miner infection interact may provide insights to elucidate the resistance response. In this study, we investigated the expression profile of genes from potassium and nitrogen metabolism, oxidative stress and defense response, in coffee seedlings submitted to limiting nutritional conditions. Young plants from both resistant and susceptible genotypes were irrigated with solutions containing variable macronutrients (N+K+, N+K-, NK+, NK-). After treatment, leaves were collected, total RNA extracted and gene expression was evaluated by qRT-PCR. All assessed genes exhibited differential expression between susceptible and resistant plants in response to nutritional stress. In addition, genes directly involved with defense mechanisms and oxidative stress exhibited the most significant expression differences when compared with genes from nutrient metabolism. These preliminary analyses suggest that regulation of nutrient up-take and/or transport may not play a central role during coffee response, and instead the activation of defense mechanisms is the initial response to low nutrient availability 650 $aDefense mechanisms 650 $aMinerals 650 $aNutrient utilization 650 $aDefesa Vegetal 650 $aNutrição Vegetal 650 $aNutriente Mineral 700 1 $aMARTINATI, J. C. 700 1 $aPADILHA, L. 700 1 $aGUERREIRO FILHO, O. 700 1 $aMALUF, M. P.
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Registro original: |
Embrapa Café (CNPCa) |
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Registro Completo
Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
26/08/1993 |
Data da última atualização: |
05/11/2014 |
Autoria: |
SANTOS, R. F. dos; BARROS, M. A. L. |
Título: |
Retorno economico de tecnologias geradas e adaptadas pelo Centro Nacional de Pesquisa do Algodao. |
Ano de publicação: |
1989 |
Fonte/Imprenta: |
Campina Grande: EMBRAPA-CNPA, 1989. |
Páginas: |
20p |
Série: |
(EMBRAPA-CNPA. Documentos, 37) |
Idioma: |
Português |
Conteúdo: |
Sintese das principais tecnologias geradas pelo CNPA e adotadas pelos agricultores, no periodo de 1975/86. |
Palavras-Chave: |
Annual; Arboreo; Avaliacao economica; Bens publicos; Brasil; Economic; Evaluation; Goods; Herbaceo; Internal; Perennial; Public; Rate; Regiao Nordeste; Retorno; Retorno econômico; Returne; Sesame indicum; Taxa interna; Tecnologia gerada; Tecnologias. |
Thesagro: |
Algodão; Gergelim; Gossypium Hirsutum; Tecnologia. |
Thesaurus NAL: |
Cotton. |
Categoria do assunto: |
-- X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/111055/1/DOC37.pdf
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Marc: |
LEADER 01246nam a2200457 a 4500 001 1262843 005 2014-11-05 008 1989 bl uuuu u0uu1 u #d 100 1 $aSANTOS, R. F. dos 245 $aRetorno economico de tecnologias geradas e adaptadas pelo Centro Nacional de Pesquisa do Algodao. 260 $aCampina Grande: EMBRAPA-CNPA$c1989 300 $a20p 490 $a(EMBRAPA-CNPA. Documentos, 37) 520 $aSintese das principais tecnologias geradas pelo CNPA e adotadas pelos agricultores, no periodo de 1975/86. 650 $aCotton 650 $aAlgodão 650 $aGergelim 650 $aGossypium Hirsutum 650 $aTecnologia 653 $aAnnual 653 $aArboreo 653 $aAvaliacao economica 653 $aBens publicos 653 $aBrasil 653 $aEconomic 653 $aEvaluation 653 $aGoods 653 $aHerbaceo 653 $aInternal 653 $aPerennial 653 $aPublic 653 $aRate 653 $aRegiao Nordeste 653 $aRetorno 653 $aRetorno econômico 653 $aReturne 653 $aSesame indicum 653 $aTaxa interna 653 $aTecnologia gerada 653 $aTecnologias 700 1 $aBARROS, M. A. L.
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