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| Registros recuperados : 2 | |
| Registros recuperados : 2 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
18/11/2020 |
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Data da última atualização: |
18/11/2020 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MAIA, F. M.; MARTINATI, J. C.; PADILHA, L.; GUERREIRO FILHO, O.; MALUF, M. P. |
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Afiliação: |
FERNANDA MAGALHÃES MAIA, IAC; JULIANA CAMARGO MARTINATI, IAC; LILIAN PADILHA, CNPCa; OLIVEIRO GUERREIRO FILHO, IAC; MIRIAN PEREZ MALUF, CNPCa. |
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Título: |
Gene expression during response to nutrient deficiency in leaf-miner resistant and susceptible genotypes. |
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Ano de publicação: |
2014 |
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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. |
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Idioma: |
Inglês |
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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 |
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Thesagro: |
Defesa Vegetal; Nutrição Vegetal; Nutriente Mineral. |
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Thesaurus NAL: |
Defense mechanisms; Minerals; Nutrient utilization. |
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Categoria do assunto: |
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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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