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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
07/01/2016 |
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Data da última atualização: |
03/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PASSOS, L. P.; SANTOS, A. S. de O. dos; MARTINS, M. F.; BOTEZINE, N. P.; LOPES, H. C. da C.; DIAS, D. H. da S.; FOGAÇA, G. N.; REIS, P. R. C.; MARQUES, R. |
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Afiliação: |
LEONIDAS PAIXAO PASSOS, CNPGL; Alessa Siqueira de Oliveira dos Santos; MARTA FONSECA MARTINS, CNPGL; Naiara Pereira Botezine; Heitor Carvalho da Costa Lopes; Diego Henrique da Silva Dias; Gisele Nogueira Fogaça; Paola Ramos Coutinho Reis; Rafael Marques. |
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Título: |
Response of iron-enriched palisadegrass seedlings to toxic Cr3+ revealed by physiological indicators and protein profiles using microfluidic electrophoresis. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 9, n. 9, p. 835-843, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Most studies on crop responses to Cr toxicity lack using acidic growing medium in order to maximize Cr uptake and taking measures to prevent Cr-induced Fe deficiency. Also, the evaluation of protein profiles is still to be carried out in association with physiological responses to Cr stress. The purpose of this study was to investigate the effects of Cr3+ on the physiology and protein profiles of Feenriched palisadegrass seedlings in an acidic nutrient solution under controlled conditions. Following 30 days of continuous stress, a sharp reduction in leaf area was the most evident alteration caused by Cr3+ stress, while a tendency of depressing effects was observed in the other physiological variables. Nutrient solution acidity had no significant effect, which could be associated with the high tolerance of palisadegrass to acidic soils. Symptoms of Fe deficiency in Cr3+ -treated seedlings were minimal, suggesting Feenrichment was efficient in isolating such a stress from Cr3+ effects. Proteins were differentially expressed in Cr3+ -treated leaf samples, as revealed by microfluidic electrophoresis and SDS-PAGE profiles. In both cases, protein spots were less noticeable under Cr3+ stress. It is concluded that a depressed leaf area is the most rapid and detectable response of the species to Cr3+ toxicity, along with an overall down-regulation of protein spots. Other variables, such as number of leaves, number of dead leaves, shoot length and chlorophyll level are putative indicators for a prolonged exposure to Cr3+. MenosMost studies on crop responses to Cr toxicity lack using acidic growing medium in order to maximize Cr uptake and taking measures to prevent Cr-induced Fe deficiency. Also, the evaluation of protein profiles is still to be carried out in association with physiological responses to Cr stress. The purpose of this study was to investigate the effects of Cr3+ on the physiology and protein profiles of Feenriched palisadegrass seedlings in an acidic nutrient solution under controlled conditions. Following 30 days of continuous stress, a sharp reduction in leaf area was the most evident alteration caused by Cr3+ stress, while a tendency of depressing effects was observed in the other physiological variables. Nutrient solution acidity had no significant effect, which could be associated with the high tolerance of palisadegrass to acidic soils. Symptoms of Fe deficiency in Cr3+ -treated seedlings were minimal, suggesting Feenrichment was efficient in isolating such a stress from Cr3+ effects. Proteins were differentially expressed in Cr3+ -treated leaf samples, as revealed by microfluidic electrophoresis and SDS-PAGE profiles. In both cases, protein spots were less noticeable under Cr3+ stress. It is concluded that a depressed leaf area is the most rapid and detectable response of the species to Cr3+ toxicity, along with an overall down-regulation of protein spots. Other variables, such as number of leaves, number of dead leaves, shoot length and chlorophyll level are putative indica... Mostrar Tudo |
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Palavras-Chave: |
Cr3+; Iron supply; Medium pH; Microfluidic electrophoresis; Palisadegrass; Physiological indicator. |
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Thesagro: |
Brachiaria Brizantha. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/136770/1/Cnpgl-2015-AustrJCropS-Response.pdf
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Marc: |
LEADER 02495naa a2200301 a 4500
001 2033161
005 2024-02-03
008 2015 bl uuuu u00u1 u #d
100 1 $aPASSOS, L. P.
245 $aResponse of iron-enriched palisadegrass seedlings to toxic Cr3+ revealed by physiological indicators and protein profiles using microfluidic electrophoresis.$h[electronic resource]
260 $c2015
520 $aMost studies on crop responses to Cr toxicity lack using acidic growing medium in order to maximize Cr uptake and taking measures to prevent Cr-induced Fe deficiency. Also, the evaluation of protein profiles is still to be carried out in association with physiological responses to Cr stress. The purpose of this study was to investigate the effects of Cr3+ on the physiology and protein profiles of Feenriched palisadegrass seedlings in an acidic nutrient solution under controlled conditions. Following 30 days of continuous stress, a sharp reduction in leaf area was the most evident alteration caused by Cr3+ stress, while a tendency of depressing effects was observed in the other physiological variables. Nutrient solution acidity had no significant effect, which could be associated with the high tolerance of palisadegrass to acidic soils. Symptoms of Fe deficiency in Cr3+ -treated seedlings were minimal, suggesting Feenrichment was efficient in isolating such a stress from Cr3+ effects. Proteins were differentially expressed in Cr3+ -treated leaf samples, as revealed by microfluidic electrophoresis and SDS-PAGE profiles. In both cases, protein spots were less noticeable under Cr3+ stress. It is concluded that a depressed leaf area is the most rapid and detectable response of the species to Cr3+ toxicity, along with an overall down-regulation of protein spots. Other variables, such as number of leaves, number of dead leaves, shoot length and chlorophyll level are putative indicators for a prolonged exposure to Cr3+.
650 $aBrachiaria Brizantha
653 $aCr3+
653 $aIron supply
653 $aMedium pH
653 $aMicrofluidic electrophoresis
653 $aPalisadegrass
653 $aPhysiological indicator
700 1 $aSANTOS, A. S. de O. dos
700 1 $aMARTINS, M. F.
700 1 $aBOTEZINE, N. P.
700 1 $aLOPES, H. C. da C.
700 1 $aDIAS, D. H. da S.
700 1 $aFOGAÇA, G. N.
700 1 $aREIS, P. R. C.
700 1 $aMARQUES, R.
773 $tAustralian Journal of Crop Science$gv. 9, n. 9, p. 835-843, 2015.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| 16. |  | LOPES, H. F.; DE-POLLI, H.; FRANCO, A. A. Nodulacao espontanea em feijao-de-vagem cultivado apos a cultura do tomate do medio Paraiba-Fluminense. In: CONGRESSO BRASILEIRO DE OLERICULTURA, 36., Rio de Janeiro, 1996. Horticultura Brasileira, Brasilia, v.14, n.1, p.94, maio 1996. Resumo n.157.| Biblioteca(s): Embrapa Agrobiologia. |
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| Registros recuperados : 186 | |
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