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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
04/03/1998 |
Data da última atualização: |
16/06/2017 |
Autoria: |
MITYKO, J.; FARI, M. |
Título: |
Problems and results of doubled haploid plant production in pepper (Capsicum annum L.) via anther - and microspore culture. |
Ano de publicação: |
1997 |
Fonte/Imprenta: |
Acta Horticulturae, Leuven, n. 447, p.281-287, 1997. |
Idioma: |
Inglês |
Notas: |
Edição do Proceedings of the 3 International Symposium on in Vitro Culture and Horticultural Breeding, Jerusalem, Israel, oct. 1996. |
Conteúdo: |
More than 500 pepper varieties, breeding lines and F1 hybrids were investigated in anther culture. A decreasing androgenic response was obtained in wax-type, dark green blocky-type, tomato-shaped and Cayenne;chilli-type peppers (from 76 to 0 plants/100 cultured anthers). Although bell peppers generated a high? and reproducible response, spice peppers proved to be less or non-responsive. An in vitro colchicine treatment was applied to the haploid regenerated plants for chromosome doubling with a 75% rediplolidization rate. One responsive (Feherozon) and two poorly responsive (No. 40017 R-13 and No. 40017 RK-II) genotypes were selected for microspore culture experiments. Three basic culture media were used with different carbohydrate and growth regulator supplements. the highest frequency of microspore divisions was obtained on NLN-2-15 medium (modified LIchter, 1981 medium containing 2% saccharose, 0,5 mg/l NAA and 0,5 mg/l BA). Sporophytic divisions resulted in some multicellular pollens, but enbryo development from these structures has not been obtained ywt. Stigma co-culture, exine wall degestioni and the colchicine effect on microspore divisions were investigated. Although neither the stigma co-culture nor the enzyme treatment could increase the cell division frequency , the positive effect of the drug (25 mg;l for 24 h) on the microspore development was clear. |
Palavras-Chave: |
Colchicina in vitro; In vitro colchicine; Production; Treatment. |
Thesagro: |
Capsicum Annuum; Cultura de Tecido; Melhoramento; Pimentão; Produção; Tratamento. |
Thesaurus Nal: |
breeding; pepper; tissue culture. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02337naa a2200301 a 4500 001 1132597 005 2017-06-16 008 1997 bl uuuu u00u1 u #d 100 1 $aMITYKO, J. 245 $aProblems and results of doubled haploid plant production in pepper (Capsicum annum L.) via anther - and microspore culture. 260 $c1997 500 $aEdição do Proceedings of the 3 International Symposium on in Vitro Culture and Horticultural Breeding, Jerusalem, Israel, oct. 1996. 520 $aMore than 500 pepper varieties, breeding lines and F1 hybrids were investigated in anther culture. A decreasing androgenic response was obtained in wax-type, dark green blocky-type, tomato-shaped and Cayenne;chilli-type peppers (from 76 to 0 plants/100 cultured anthers). Although bell peppers generated a high? and reproducible response, spice peppers proved to be less or non-responsive. An in vitro colchicine treatment was applied to the haploid regenerated plants for chromosome doubling with a 75% rediplolidization rate. One responsive (Feherozon) and two poorly responsive (No. 40017 R-13 and No. 40017 RK-II) genotypes were selected for microspore culture experiments. Three basic culture media were used with different carbohydrate and growth regulator supplements. the highest frequency of microspore divisions was obtained on NLN-2-15 medium (modified LIchter, 1981 medium containing 2% saccharose, 0,5 mg/l NAA and 0,5 mg/l BA). Sporophytic divisions resulted in some multicellular pollens, but enbryo development from these structures has not been obtained ywt. Stigma co-culture, exine wall degestioni and the colchicine effect on microspore divisions were investigated. Although neither the stigma co-culture nor the enzyme treatment could increase the cell division frequency , the positive effect of the drug (25 mg;l for 24 h) on the microspore development was clear. 650 $abreeding 650 $apepper 650 $atissue culture 650 $aCapsicum Annuum 650 $aCultura de Tecido 650 $aMelhoramento 650 $aPimentão 650 $aProdução 650 $aTratamento 653 $aColchicina in vitro 653 $aIn vitro colchicine 653 $aProduction 653 $aTreatment 700 1 $aFARI, M. 773 $tActa Horticulturae, Leuven$gn. 447, p.281-287, 1997.
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Embrapa Semiárido (CPATSA) |
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Registros recuperados : 18 | |
16. | | FARI, M.; SORVARI, S.; AHANEN, K; TOLDI, O.; MELO, N. F. de; HIRSALMI, H. Development and germination of somatic embryos on sugar-free wheat starch medium in carrot (Daucus carota L. cv. Nantes Duke). In: ENCONTRO BRASILEIRO DE BIOTECNOLOGIA VEGETAL, 2., 1997, Gramado. Programas e resumos... Passo Fundo: REDBIO Sub-Região Brasil, 1997. p. 128.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Semiárido. |
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17. | | FARI, M.; SORVARI, S.; AHANEN, K.; MELO, N. F. de; HIRSALMI, H. Production of dry type artificial seeds by means of PVC-FOIL desiccation method from genetically engineered somatic embryos of carrot (Daucus carota L., cv. Nantes Duke). In: ENCONTRO BRASILEIRO DE BIOTECNOLOGIA VEGETAL, 2., 1997, Gramado. Programas e resumos... Passo Fundo: REDBIO Sub-Região Brasil, 1997. p. 129.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Semiárido. |
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