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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
Data corrente: |
03/09/1996 |
Data da última atualização: |
13/07/2022 |
Autoria: |
ZUCON, M. H.; BARRETO, A. C. C.; SIQUEIRA, E. R. de; OLIVEIRA, F. F. de; ARAUJO, M. I. de; LIMA, M. J. G. de; SANTANA, V. B. |
Afiliação: |
EDMAR RAMOS DE SIQUEIRA, CPATC. |
Título: |
Educacao ambiental no entorno dos remanescentes de Mata Atlantica de Sergipe. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
In: SIMPÓSIO INTERNACIONAL SOBRE ECOSSISTEMAS FLORESTAIS, 4., 1996, Belo Horizonte. Forest 96: resumos. Belo Horizonte: BIOSFERA, 1996. |
Páginas: |
p. 158-158. |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Ecossistemas; ecossystems; Florestas tropicais; Foresty; Mata atlantica; Sergipe; Tropical region. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00876naa a2200289 a 4500 001 1365621 005 2022-07-13 008 1996 bl uuuu u00u1 u #d 100 1 $aZUCON, M. H. 245 $aEducacao ambiental no entorno dos remanescentes de Mata Atlantica de Sergipe. 260 $c1996 300 $ap. 158-158. 653 $aBrasil 653 $aEcossistemas 653 $aecossystems 653 $aFlorestas tropicais 653 $aForesty 653 $aMata atlantica 653 $aSergipe 653 $aTropical region 700 1 $aBARRETO, A. C. C. 700 1 $aSIQUEIRA, E. R. de 700 1 $aOLIVEIRA, F. F. de 700 1 $aARAUJO, M. I. de 700 1 $aLIMA, M. J. G. de 700 1 $aSANTANA, V. B. 773 $tIn: SIMPÓSIO INTERNACIONAL SOBRE ECOSSISTEMAS FLORESTAIS, 4., 1996, Belo Horizonte. Forest 96: resumos. Belo Horizonte: BIOSFERA, 1996.
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Embrapa Tabuleiros Costeiros (CPATC) |
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Registro Completo
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
19/09/2018 |
Data da última atualização: |
19/09/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
LEDO, A. da S.; JENDEREK, M. M.; LEDO, C. A. da S.; AYALA-SILVA, T. |
Afiliação: |
ANA DA SILVA LEDO, CPATC; MARIA M. JENDEREK, USDA-ARS; CARLOS ALBERTO DA SILVA LEDO, CNPMF; TOMAS AYALA-SILVA, USDA-ARS. |
Título: |
Antioxidants and phenolic secretion in sugarcane genotypes shoots culture. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Journal of Agricultural Science, v. 10, n. 5, 2018. |
ISSN: |
1916-9760 |
Idioma: |
Inglês |
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 |
Thesagro: |
Cana de Açúcar. |
Categoria do assunto: |
-- |
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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