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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
19/09/2018 |
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Data da última atualização: |
19/09/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LEDO, A. da S.; JENDEREK, M. M.; LEDO, C. A. da S.; AYALA-SILVA, T. |
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Afiliação: |
ANA DA SILVA LEDO, CPATC; MARIA M. JENDEREK, USDA-ARS; CARLOS ALBERTO DA SILVA LEDO, CNPMF; TOMAS AYALA-SILVA, USDA-ARS. |
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Título: |
Antioxidants and phenolic secretion in sugarcane genotypes shoots culture. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Agricultural Science, v. 10, n. 5, 2018. |
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ISSN: |
1916-9760 |
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Idioma: |
Inglês |
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Conteúdo: |
Secretion of phenolic compounds is a major limitation for sugarcane in vitro shoot culture, causing a loss of regenerative capacity and subsequent cell death. In this study, micropropagation and phenolic secretion of four Saccharum genotypes were evaluated in presence of different antioxidants. Aseptic cultures of S. officinarum (PI 184794 and PI 88652), S. sinense (PI 29109) and S. robustum (UNK R65P35) were propagated on medium containing antioxidants, citric acid (100 mg/L), L-cysteine (100 mg/L), polyvynylpirrolidone (300 mg/L) and L-glutathione (50 mg/L) in two consecutive subculture cycles. Interaction between genotypes and antioxidants was significant in both cycles. All genotypes showed good shoot formation, shoot vigor and color, except in PI 88652 which had less shoot development in both the presence and absence of the antioxidants tested. PI 184794 displayed the highest shoot proliferation in the presence of citric acid, and UNK R65P35 produced more shoots per explant in the 2nd subculture. For S. sinense (PI 29109), in both subcultures, most shoots were observed in the presence of polyvynylpirrolidone. Medium discoloration due to phenolic secretion was reduced in the presence of citric acid and polyvynylpirrolidone. The type of secreted phenolic compounds differed with genotype as the Principal Component Analysis of cultivation media separated PI 88652 from PI 29109 and UKN R65P35. Phenolic compounds varied in composition and were secreted at various levels as a function of genotype and antioxidant type. Loadings plots indicated the genotype and antioxidant separations were broadly driven by flavonoid compounds. MenosSecretion of phenolic compounds is a major limitation for sugarcane in vitro shoot culture, causing a loss of regenerative capacity and subsequent cell death. In this study, micropropagation and phenolic secretion of four Saccharum genotypes were evaluated in presence of different antioxidants. Aseptic cultures of S. officinarum (PI 184794 and PI 88652), S. sinense (PI 29109) and S. robustum (UNK R65P35) were propagated on medium containing antioxidants, citric acid (100 mg/L), L-cysteine (100 mg/L), polyvynylpirrolidone (300 mg/L) and L-glutathione (50 mg/L) in two consecutive subculture cycles. Interaction between genotypes and antioxidants was significant in both cycles. All genotypes showed good shoot formation, shoot vigor and color, except in PI 88652 which had less shoot development in both the presence and absence of the antioxidants tested. PI 184794 displayed the highest shoot proliferation in the presence of citric acid, and UNK R65P35 produced more shoots per explant in the 2nd subculture. For S. sinense (PI 29109), in both subcultures, most shoots were observed in the presence of polyvynylpirrolidone. Medium discoloration due to phenolic secretion was reduced in the presence of citric acid and polyvynylpirrolidone. The type of secreted phenolic compounds differed with genotype as the Principal Component Analysis of cultivation media separated PI 88652 from PI 29109 and UKN R65P35. Phenolic compounds varied in composition and were secreted at various levels as a ... Mostrar Tudo |
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Thesagro: |
Cana de Açúcar. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02181naa a2200181 a 4500
001 2096031
005 2018-09-19
008 2018 bl uuuu u00u1 u #d
022 $a1916-9760
100 1 $aLEDO, A. da S.
245 $aAntioxidants and phenolic secretion in sugarcane genotypes shoots culture.$h[electronic resource]
260 $c2018
520 $aSecretion of phenolic compounds is a major limitation for sugarcane in vitro shoot culture, causing a loss of regenerative capacity and subsequent cell death. In this study, micropropagation and phenolic secretion of four Saccharum genotypes were evaluated in presence of different antioxidants. Aseptic cultures of S. officinarum (PI 184794 and PI 88652), S. sinense (PI 29109) and S. robustum (UNK R65P35) were propagated on medium containing antioxidants, citric acid (100 mg/L), L-cysteine (100 mg/L), polyvynylpirrolidone (300 mg/L) and L-glutathione (50 mg/L) in two consecutive subculture cycles. Interaction between genotypes and antioxidants was significant in both cycles. All genotypes showed good shoot formation, shoot vigor and color, except in PI 88652 which had less shoot development in both the presence and absence of the antioxidants tested. PI 184794 displayed the highest shoot proliferation in the presence of citric acid, and UNK R65P35 produced more shoots per explant in the 2nd subculture. For S. sinense (PI 29109), in both subcultures, most shoots were observed in the presence of polyvynylpirrolidone. Medium discoloration due to phenolic secretion was reduced in the presence of citric acid and polyvynylpirrolidone. The type of secreted phenolic compounds differed with genotype as the Principal Component Analysis of cultivation media separated PI 88652 from PI 29109 and UKN R65P35. Phenolic compounds varied in composition and were secreted at various levels as a function of genotype and antioxidant type. Loadings plots indicated the genotype and antioxidant separations were broadly driven by flavonoid compounds.
650 $aCana de Açúcar
700 1 $aJENDEREK, M. M.
700 1 $aLEDO, C. A. da S.
700 1 $aAYALA-SILVA, T.
773 $tJournal of Agricultural Science$gv. 10, n. 5, 2018.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Biblioteca |
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Registro |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Hortaliças. Para informações adicionais entre em contato com cnph.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Hortaliças. |
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Data corrente: |
30/08/1999 |
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Data da última atualização: |
30/08/1999 |
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Autoria: |
MAGALHAES, J. R.; SILVA, W. L. de C. e; MENEZES SOBRINHO, J. A. de. |
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Afiliação: |
EMBRAPA-CNPH, Brasilia, DF. |
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Título: |
Efeitos de niveis de sodio na producao e conservacao do alho em solo de cerrado do Distrito Federal. |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE OLERICULTURA, 19., 1979, Florianopolis, SC. Resumos... Florianopolis: EMPASC, 1979. |
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Volume: |
v.2. |
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Páginas: |
p.214. |
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Idioma: |
Português |
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Palavras-Chave: |
Brasil; Brasilia; Conservation; Cultivar Amarante; Distrito Federal; Postharvest; Production. |
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Thesagro: |
Alho; Allium Sativum; Cerrado; Conservação; Pós-Colheita; Produção; Sódio. |
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Thesaurus NAL: |
Brazil; garlic; sodium. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01004naa a2200361 a 4500
001 1765257
005 1999-08-30
008 1979 bl uuuu u00u1 u #d
100 1 $aMAGALHAES, J. R.
245 $aEfeitos de niveis de sodio na producao e conservacao do alho em solo de cerrado do Distrito Federal.
260 $c1979
300 $ap.214. v.2.
490 $vv.2.
650 $aBrazil
650 $agarlic
650 $asodium
650 $aAlho
650 $aAllium Sativum
650 $aCerrado
650 $aConservação
650 $aPós-Colheita
650 $aProdução
650 $aSódio
653 $aBrasil
653 $aBrasilia
653 $aConservation
653 $aCultivar Amarante
653 $aDistrito Federal
653 $aPostharvest
653 $aProduction
700 1 $aSILVA, W. L. de C. e
700 1 $aMENEZES SOBRINHO, J. A. de
773 $tIn: CONGRESSO BRASILEIRO DE OLERICULTURA, 19., 1979, Florianopolis, SC. Resumos... Florianopolis: EMPASC, 1979.
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