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Registro Completo |
Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
13/03/2000 |
Data da última atualização: |
13/03/2000 |
Autoria: |
CUNHA, G. R. da. |
Afiliação: |
Gilberto Rocca da Cunha, Embrapa Trigo. |
Título: |
Trigo de alto rendimento requer uso de tecnologia. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
In: CUNHA, G. R. da; TROMBINI, M. de F. (Org.). Trigo no Mercosul: coletânea de artigos. Brasília, DF: Embrapa Comunicação para Transferência de Tecnologia; Passo Fundo: Embrapa Trigo, 1999. |
Páginas: |
p. 311 |
Idioma: |
Português |
Categoria do assunto: |
-- |
Marc: |
LEADER 00478naa a2200121 a 4500 001 1825478 005 2000-03-13 008 1999 bl uuuu u00u1 u #d 100 1 $aCUNHA, G. R. da 245 $aTrigo de alto rendimento requer uso de tecnologia. 260 $c1999 300 $ap. 311 773 $tIn: CUNHA, G. R. da; TROMBINI, M. de F. (Org.). Trigo no Mercosul: coletânea de artigos. Brasília, DF: Embrapa Comunicação para Transferência de Tecnologia; Passo Fundo: Embrapa Trigo, 1999.
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Registro original: |
Embrapa Trigo (CNPT) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
05/03/2003 |
Data da última atualização: |
07/06/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SOUZA, I. R. P. de; ALVES, V. M. C.; PARENTONI, S. N.; OLIVEIRA, A. C. de; TEIXEIRA, F. F.; ADAM, J. W. Mac. |
Afiliação: |
ISABEL REGINA PRAZERES DE SOUZA, CNPMS; VERA MARIA CARVALHO ALVES, CNPMS; SIDNEY NETTO PARENTONI, CNPMS; ANTONIO CARLOS DE OLIVEIRA, CNPMS; FLAVIA FRANCA TEIXEIRA, CNPMS. |
Título: |
Change in root apical protein and peroxidase activity in response to aluminum in tolerant and sensitive maize inbred lines. |
Ano de publicação: |
2002 |
Fonte/Imprenta: |
Brazilian Journal of Plant Physiology, Londrina, v. 14, n. 3, p. 219-224, 2002. |
Idioma: |
Inglês |
Conteúdo: |
The effects of a short-term (80 min) exposure to 222 _uM aluminum (AI) on the protein content and expression and on peroxidase activity and isoenzymes in the primary root of maize were evaluated. Two inbred lines differing in their leveI of tolerance to AI were used: Cateto 237 (tolerant) and L36 (sensitive). The apical 20 mm of the primary root was divided into 2-mm-Iong segments that were analyzed for total protein content and peroxidase activity. These results demonstrate that the total protein content along the root apex was not affected by AI in the tolerant inbred line, but decreased in the sensitive line. In the apical 2 mm of the root of the sensitive line, the expression of low molecular weight proteins (43 kDa or smaller) was decreased. Expression of low molecular proteins increased in the tolerant inbred line, even though total protein content did not increase. This suggests that some of these proteins could play a role in metal tolerance, perhaps as binding peptides. While the peroxidase activity of the tolerant inbred line did not change with exposure to AI, peroxidase activity in the apical 6 mm of the root of the sensitive line decreased. The tolerant inbred line constitutively expressed more anionic peroxidase isoforms. These results demonstrate that maintenance of protein expression may be an important component of the plant's resistance to AI stress, and that resistance to AI stress is associated with the higher expression of anionic peroxidase isoforms. |
Palavras-Chave: |
Crescimento radicular; Isoformas de peroxidase; Toxicidade do alumínio. |
Thesagro: |
Milho. |
Categoria do assunto: |
S Ciências Biológicas |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/32872/1/Change-root.pdf
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Marc: |
LEADER 02255naa a2200229 a 4500 001 1480546 005 2018-06-07 008 2002 bl uuuu u00u1 u #d 100 1 $aSOUZA, I. R. P. de 245 $aChange in root apical protein and peroxidase activity in response to aluminum in tolerant and sensitive maize inbred lines.$h[electronic resource] 260 $c2002 520 $aThe effects of a short-term (80 min) exposure to 222 _uM aluminum (AI) on the protein content and expression and on peroxidase activity and isoenzymes in the primary root of maize were evaluated. Two inbred lines differing in their leveI of tolerance to AI were used: Cateto 237 (tolerant) and L36 (sensitive). The apical 20 mm of the primary root was divided into 2-mm-Iong segments that were analyzed for total protein content and peroxidase activity. These results demonstrate that the total protein content along the root apex was not affected by AI in the tolerant inbred line, but decreased in the sensitive line. In the apical 2 mm of the root of the sensitive line, the expression of low molecular weight proteins (43 kDa or smaller) was decreased. Expression of low molecular proteins increased in the tolerant inbred line, even though total protein content did not increase. This suggests that some of these proteins could play a role in metal tolerance, perhaps as binding peptides. While the peroxidase activity of the tolerant inbred line did not change with exposure to AI, peroxidase activity in the apical 6 mm of the root of the sensitive line decreased. The tolerant inbred line constitutively expressed more anionic peroxidase isoforms. These results demonstrate that maintenance of protein expression may be an important component of the plant's resistance to AI stress, and that resistance to AI stress is associated with the higher expression of anionic peroxidase isoforms. 650 $aMilho 653 $aCrescimento radicular 653 $aIsoformas de peroxidase 653 $aToxicidade do alumínio 700 1 $aALVES, V. M. C. 700 1 $aPARENTONI, S. N. 700 1 $aOLIVEIRA, A. C. de 700 1 $aTEIXEIRA, F. F. 700 1 $aADAM, J. W. Mac. 773 $tBrazilian Journal of Plant Physiology, Londrina$gv. 14, n. 3, p. 219-224, 2002.
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