Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro
Callus cultures from cotyledon and leaf explants of a Spanish cultivar of melon (Amarillo Oro) were tested for growth and morphogenic capacity on several culture media with different concentrations of IAA (indole-3-acetic acid) in combination with 1.0 mg.L-1 BA (6-benzylaminopurine) or 6.0 mg.L-1 KI...
Ausführliche Beschreibung
Autor*in: |
Fernanda Vidigal Duarte Souza [verfasserIn] Begoña Garcia-Sogo [verfasserIn] Antonio da Silva Souza [verfasserIn] Amparo Pérez San-Juán [verfasserIn] Vicente Moreno [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2006 |
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Übergeordnetes Werk: |
In: Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar), 2004, 49(2006), 1, Seite 21-27 |
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Übergeordnetes Werk: |
volume:49 ; year:2006 ; number:1 ; pages:21-27 |
Links: |
Link aufrufen |
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DOI / URN: |
10.1590/S1516-89132006000100003 |
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Katalog-ID: |
DOAJ046426329 |
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520 | |a Callus cultures from cotyledon and leaf explants of a Spanish cultivar of melon (Amarillo Oro) were tested for growth and morphogenic capacity on several culture media with different concentrations of IAA (indole-3-acetic acid) in combination with 1.0 mg.L-1 BA (6-benzylaminopurine) or 6.0 mg.L-1 KIN (kinetin). The best results were achieved with cotyledon explants. The leaf explants presented low bud formation capacity. Variability of organogenic response on cotyledons of different age (7, 5, 3 and 1-day-old) was evaluated. The age of explant had a significant influence on bud induction. Cotyledon explants from 7-day-old seedlings showed higher organogenic index and development of shoots when cultured onto MS medium supplemented with 1.5 mg.L-1 of IAA and 1.0 mg.L-1 of BA. The effect of cut type of cotyledonary explants on organogenic response was also investigated. Explants cut transversally showed the best results. The addition of copper sulfate in the culture medium promoted a qualitative improvement of the regenerated shoots.<br<Explantes de cotilédones e folhas do cultivar de melão Amarillo Oro foram cultivados para avaliação do potencial morfogenético em diferentes meios de cultura com diversas concentrações de ácido indolacético (AIA), em combinação com 1,0 mg.L-1 benziladenina (BA) e 6,0 mg.L-1 de cinetina (CIN). Os melhores resultados foram obtidos com explantes de cotilédones, sendo que explantes de folhas mostraram uma capacidade baixa na indução de gemas. A variação na resposta organogênica em cotilédones de diferentes idades fisiológicas (1, 3, 5 e 7 dias após a germinação) mostraram que os melhores resultados foram obtidos com cotilédones de sete dias cultivados no meio MS suplementado com 1,5 mg.L-1 de AIA e 1,0 mg.L-1 de BA. O efeito do tipo de corte na resposta organogênica de explantes cotiledonares foi também avaliado. Os melhores resultados foram obtidos com explantes cortados transversalmente. Adição suplementar de sulfato de cobre ao meio de cultura resultou em uma melhora na qualidade da dos brotos regenerados. | ||
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10.1590/S1516-89132006000100003 doi (DE-627)DOAJ046426329 (DE-599)DOAJ599b1ff1b9a040c2917673e2abd5a67a DE-627 ger DE-627 rakwb eng TP248.13-248.65 Fernanda Vidigal Duarte Souza verfasserin aut Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Callus cultures from cotyledon and leaf explants of a Spanish cultivar of melon (Amarillo Oro) were tested for growth and morphogenic capacity on several culture media with different concentrations of IAA (indole-3-acetic acid) in combination with 1.0 mg.L-1 BA (6-benzylaminopurine) or 6.0 mg.L-1 KIN (kinetin). The best results were achieved with cotyledon explants. The leaf explants presented low bud formation capacity. Variability of organogenic response on cotyledons of different age (7, 5, 3 and 1-day-old) was evaluated. The age of explant had a significant influence on bud induction. Cotyledon explants from 7-day-old seedlings showed higher organogenic index and development of shoots when cultured onto MS medium supplemented with 1.5 mg.L-1 of IAA and 1.0 mg.L-1 of BA. The effect of cut type of cotyledonary explants on organogenic response was also investigated. Explants cut transversally showed the best results. The addition of copper sulfate in the culture medium promoted a qualitative improvement of the regenerated shoots.<br<Explantes de cotilédones e folhas do cultivar de melão Amarillo Oro foram cultivados para avaliação do potencial morfogenético em diferentes meios de cultura com diversas concentrações de ácido indolacético (AIA), em combinação com 1,0 mg.L-1 benziladenina (BA) e 6,0 mg.L-1 de cinetina (CIN). Os melhores resultados foram obtidos com explantes de cotilédones, sendo que explantes de folhas mostraram uma capacidade baixa na indução de gemas. A variação na resposta organogênica em cotilédones de diferentes idades fisiológicas (1, 3, 5 e 7 dias após a germinação) mostraram que os melhores resultados foram obtidos com cotilédones de sete dias cultivados no meio MS suplementado com 1,5 mg.L-1 de AIA e 1,0 mg.L-1 de BA. O efeito do tipo de corte na resposta organogênica de explantes cotiledonares foi também avaliado. Os melhores resultados foram obtidos com explantes cortados transversalmente. Adição suplementar de sulfato de cobre ao meio de cultura resultou em uma melhora na qualidade da dos brotos regenerados. Organogenesis plant regeneration leaf explant cotyledon explant cucurbitaceae Biotechnology Begoña Garcia-Sogo verfasserin aut Antonio da Silva Souza verfasserin aut Amparo Pérez San-Juán verfasserin aut Vicente Moreno verfasserin aut In Brazilian Archives of Biology and Technology Instituto de Tecnologia do Paraná (Tecpar), 2004 49(2006), 1, Seite 21-27 (DE-627)372352324 (DE-600)2122231-9 16784324 nnns volume:49 year:2006 number:1 pages:21-27 https://doi.org/10.1590/S1516-89132006000100003 kostenfrei https://doaj.org/article/599b1ff1b9a040c2917673e2abd5a67a kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000100003 kostenfrei https://doaj.org/toc/1516-8913 Journal toc kostenfrei https://doaj.org/toc/1678-4324 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 49 2006 1 21-27 |
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10.1590/S1516-89132006000100003 doi (DE-627)DOAJ046426329 (DE-599)DOAJ599b1ff1b9a040c2917673e2abd5a67a DE-627 ger DE-627 rakwb eng TP248.13-248.65 Fernanda Vidigal Duarte Souza verfasserin aut Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Callus cultures from cotyledon and leaf explants of a Spanish cultivar of melon (Amarillo Oro) were tested for growth and morphogenic capacity on several culture media with different concentrations of IAA (indole-3-acetic acid) in combination with 1.0 mg.L-1 BA (6-benzylaminopurine) or 6.0 mg.L-1 KIN (kinetin). The best results were achieved with cotyledon explants. The leaf explants presented low bud formation capacity. Variability of organogenic response on cotyledons of different age (7, 5, 3 and 1-day-old) was evaluated. The age of explant had a significant influence on bud induction. Cotyledon explants from 7-day-old seedlings showed higher organogenic index and development of shoots when cultured onto MS medium supplemented with 1.5 mg.L-1 of IAA and 1.0 mg.L-1 of BA. The effect of cut type of cotyledonary explants on organogenic response was also investigated. Explants cut transversally showed the best results. The addition of copper sulfate in the culture medium promoted a qualitative improvement of the regenerated shoots.<br<Explantes de cotilédones e folhas do cultivar de melão Amarillo Oro foram cultivados para avaliação do potencial morfogenético em diferentes meios de cultura com diversas concentrações de ácido indolacético (AIA), em combinação com 1,0 mg.L-1 benziladenina (BA) e 6,0 mg.L-1 de cinetina (CIN). Os melhores resultados foram obtidos com explantes de cotilédones, sendo que explantes de folhas mostraram uma capacidade baixa na indução de gemas. A variação na resposta organogênica em cotilédones de diferentes idades fisiológicas (1, 3, 5 e 7 dias após a germinação) mostraram que os melhores resultados foram obtidos com cotilédones de sete dias cultivados no meio MS suplementado com 1,5 mg.L-1 de AIA e 1,0 mg.L-1 de BA. O efeito do tipo de corte na resposta organogênica de explantes cotiledonares foi também avaliado. Os melhores resultados foram obtidos com explantes cortados transversalmente. Adição suplementar de sulfato de cobre ao meio de cultura resultou em uma melhora na qualidade da dos brotos regenerados. Organogenesis plant regeneration leaf explant cotyledon explant cucurbitaceae Biotechnology Begoña Garcia-Sogo verfasserin aut Antonio da Silva Souza verfasserin aut Amparo Pérez San-Juán verfasserin aut Vicente Moreno verfasserin aut In Brazilian Archives of Biology and Technology Instituto de Tecnologia do Paraná (Tecpar), 2004 49(2006), 1, Seite 21-27 (DE-627)372352324 (DE-600)2122231-9 16784324 nnns volume:49 year:2006 number:1 pages:21-27 https://doi.org/10.1590/S1516-89132006000100003 kostenfrei https://doaj.org/article/599b1ff1b9a040c2917673e2abd5a67a kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000100003 kostenfrei https://doaj.org/toc/1516-8913 Journal toc kostenfrei https://doaj.org/toc/1678-4324 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 49 2006 1 21-27 |
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10.1590/S1516-89132006000100003 doi (DE-627)DOAJ046426329 (DE-599)DOAJ599b1ff1b9a040c2917673e2abd5a67a DE-627 ger DE-627 rakwb eng TP248.13-248.65 Fernanda Vidigal Duarte Souza verfasserin aut Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Callus cultures from cotyledon and leaf explants of a Spanish cultivar of melon (Amarillo Oro) were tested for growth and morphogenic capacity on several culture media with different concentrations of IAA (indole-3-acetic acid) in combination with 1.0 mg.L-1 BA (6-benzylaminopurine) or 6.0 mg.L-1 KIN (kinetin). The best results were achieved with cotyledon explants. The leaf explants presented low bud formation capacity. Variability of organogenic response on cotyledons of different age (7, 5, 3 and 1-day-old) was evaluated. The age of explant had a significant influence on bud induction. Cotyledon explants from 7-day-old seedlings showed higher organogenic index and development of shoots when cultured onto MS medium supplemented with 1.5 mg.L-1 of IAA and 1.0 mg.L-1 of BA. The effect of cut type of cotyledonary explants on organogenic response was also investigated. Explants cut transversally showed the best results. The addition of copper sulfate in the culture medium promoted a qualitative improvement of the regenerated shoots.<br<Explantes de cotilédones e folhas do cultivar de melão Amarillo Oro foram cultivados para avaliação do potencial morfogenético em diferentes meios de cultura com diversas concentrações de ácido indolacético (AIA), em combinação com 1,0 mg.L-1 benziladenina (BA) e 6,0 mg.L-1 de cinetina (CIN). Os melhores resultados foram obtidos com explantes de cotilédones, sendo que explantes de folhas mostraram uma capacidade baixa na indução de gemas. A variação na resposta organogênica em cotilédones de diferentes idades fisiológicas (1, 3, 5 e 7 dias após a germinação) mostraram que os melhores resultados foram obtidos com cotilédones de sete dias cultivados no meio MS suplementado com 1,5 mg.L-1 de AIA e 1,0 mg.L-1 de BA. O efeito do tipo de corte na resposta organogênica de explantes cotiledonares foi também avaliado. Os melhores resultados foram obtidos com explantes cortados transversalmente. Adição suplementar de sulfato de cobre ao meio de cultura resultou em uma melhora na qualidade da dos brotos regenerados. Organogenesis plant regeneration leaf explant cotyledon explant cucurbitaceae Biotechnology Begoña Garcia-Sogo verfasserin aut Antonio da Silva Souza verfasserin aut Amparo Pérez San-Juán verfasserin aut Vicente Moreno verfasserin aut In Brazilian Archives of Biology and Technology Instituto de Tecnologia do Paraná (Tecpar), 2004 49(2006), 1, Seite 21-27 (DE-627)372352324 (DE-600)2122231-9 16784324 nnns volume:49 year:2006 number:1 pages:21-27 https://doi.org/10.1590/S1516-89132006000100003 kostenfrei https://doaj.org/article/599b1ff1b9a040c2917673e2abd5a67a kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000100003 kostenfrei https://doaj.org/toc/1516-8913 Journal toc kostenfrei https://doaj.org/toc/1678-4324 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 49 2006 1 21-27 |
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10.1590/S1516-89132006000100003 doi (DE-627)DOAJ046426329 (DE-599)DOAJ599b1ff1b9a040c2917673e2abd5a67a DE-627 ger DE-627 rakwb eng TP248.13-248.65 Fernanda Vidigal Duarte Souza verfasserin aut Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Callus cultures from cotyledon and leaf explants of a Spanish cultivar of melon (Amarillo Oro) were tested for growth and morphogenic capacity on several culture media with different concentrations of IAA (indole-3-acetic acid) in combination with 1.0 mg.L-1 BA (6-benzylaminopurine) or 6.0 mg.L-1 KIN (kinetin). The best results were achieved with cotyledon explants. The leaf explants presented low bud formation capacity. Variability of organogenic response on cotyledons of different age (7, 5, 3 and 1-day-old) was evaluated. The age of explant had a significant influence on bud induction. Cotyledon explants from 7-day-old seedlings showed higher organogenic index and development of shoots when cultured onto MS medium supplemented with 1.5 mg.L-1 of IAA and 1.0 mg.L-1 of BA. The effect of cut type of cotyledonary explants on organogenic response was also investigated. Explants cut transversally showed the best results. The addition of copper sulfate in the culture medium promoted a qualitative improvement of the regenerated shoots.<br<Explantes de cotilédones e folhas do cultivar de melão Amarillo Oro foram cultivados para avaliação do potencial morfogenético em diferentes meios de cultura com diversas concentrações de ácido indolacético (AIA), em combinação com 1,0 mg.L-1 benziladenina (BA) e 6,0 mg.L-1 de cinetina (CIN). Os melhores resultados foram obtidos com explantes de cotilédones, sendo que explantes de folhas mostraram uma capacidade baixa na indução de gemas. A variação na resposta organogênica em cotilédones de diferentes idades fisiológicas (1, 3, 5 e 7 dias após a germinação) mostraram que os melhores resultados foram obtidos com cotilédones de sete dias cultivados no meio MS suplementado com 1,5 mg.L-1 de AIA e 1,0 mg.L-1 de BA. O efeito do tipo de corte na resposta organogênica de explantes cotiledonares foi também avaliado. Os melhores resultados foram obtidos com explantes cortados transversalmente. Adição suplementar de sulfato de cobre ao meio de cultura resultou em uma melhora na qualidade da dos brotos regenerados. Organogenesis plant regeneration leaf explant cotyledon explant cucurbitaceae Biotechnology Begoña Garcia-Sogo verfasserin aut Antonio da Silva Souza verfasserin aut Amparo Pérez San-Juán verfasserin aut Vicente Moreno verfasserin aut In Brazilian Archives of Biology and Technology Instituto de Tecnologia do Paraná (Tecpar), 2004 49(2006), 1, Seite 21-27 (DE-627)372352324 (DE-600)2122231-9 16784324 nnns volume:49 year:2006 number:1 pages:21-27 https://doi.org/10.1590/S1516-89132006000100003 kostenfrei https://doaj.org/article/599b1ff1b9a040c2917673e2abd5a67a kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000100003 kostenfrei https://doaj.org/toc/1516-8913 Journal toc kostenfrei https://doaj.org/toc/1678-4324 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 49 2006 1 21-27 |
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Fernanda Vidigal Duarte Souza |
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Fernanda Vidigal Duarte Souza misc TP248.13-248.65 misc Organogenesis misc plant regeneration misc leaf explant misc cotyledon explant misc cucurbitaceae misc Biotechnology Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro |
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TP248.13-248.65 Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro Organogenesis plant regeneration leaf explant cotyledon explant cucurbitaceae |
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Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro |
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Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro |
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morphogenetic response of cotyledon and leaf explants of melon (cucumis melo l.) cv. amarillo oro |
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Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro |
abstract |
Callus cultures from cotyledon and leaf explants of a Spanish cultivar of melon (Amarillo Oro) were tested for growth and morphogenic capacity on several culture media with different concentrations of IAA (indole-3-acetic acid) in combination with 1.0 mg.L-1 BA (6-benzylaminopurine) or 6.0 mg.L-1 KIN (kinetin). The best results were achieved with cotyledon explants. The leaf explants presented low bud formation capacity. Variability of organogenic response on cotyledons of different age (7, 5, 3 and 1-day-old) was evaluated. The age of explant had a significant influence on bud induction. Cotyledon explants from 7-day-old seedlings showed higher organogenic index and development of shoots when cultured onto MS medium supplemented with 1.5 mg.L-1 of IAA and 1.0 mg.L-1 of BA. The effect of cut type of cotyledonary explants on organogenic response was also investigated. Explants cut transversally showed the best results. The addition of copper sulfate in the culture medium promoted a qualitative improvement of the regenerated shoots.<br<Explantes de cotilédones e folhas do cultivar de melão Amarillo Oro foram cultivados para avaliação do potencial morfogenético em diferentes meios de cultura com diversas concentrações de ácido indolacético (AIA), em combinação com 1,0 mg.L-1 benziladenina (BA) e 6,0 mg.L-1 de cinetina (CIN). Os melhores resultados foram obtidos com explantes de cotilédones, sendo que explantes de folhas mostraram uma capacidade baixa na indução de gemas. A variação na resposta organogênica em cotilédones de diferentes idades fisiológicas (1, 3, 5 e 7 dias após a germinação) mostraram que os melhores resultados foram obtidos com cotilédones de sete dias cultivados no meio MS suplementado com 1,5 mg.L-1 de AIA e 1,0 mg.L-1 de BA. O efeito do tipo de corte na resposta organogênica de explantes cotiledonares foi também avaliado. Os melhores resultados foram obtidos com explantes cortados transversalmente. Adição suplementar de sulfato de cobre ao meio de cultura resultou em uma melhora na qualidade da dos brotos regenerados. |
abstractGer |
Callus cultures from cotyledon and leaf explants of a Spanish cultivar of melon (Amarillo Oro) were tested for growth and morphogenic capacity on several culture media with different concentrations of IAA (indole-3-acetic acid) in combination with 1.0 mg.L-1 BA (6-benzylaminopurine) or 6.0 mg.L-1 KIN (kinetin). The best results were achieved with cotyledon explants. The leaf explants presented low bud formation capacity. Variability of organogenic response on cotyledons of different age (7, 5, 3 and 1-day-old) was evaluated. The age of explant had a significant influence on bud induction. Cotyledon explants from 7-day-old seedlings showed higher organogenic index and development of shoots when cultured onto MS medium supplemented with 1.5 mg.L-1 of IAA and 1.0 mg.L-1 of BA. The effect of cut type of cotyledonary explants on organogenic response was also investigated. Explants cut transversally showed the best results. The addition of copper sulfate in the culture medium promoted a qualitative improvement of the regenerated shoots.<br<Explantes de cotilédones e folhas do cultivar de melão Amarillo Oro foram cultivados para avaliação do potencial morfogenético em diferentes meios de cultura com diversas concentrações de ácido indolacético (AIA), em combinação com 1,0 mg.L-1 benziladenina (BA) e 6,0 mg.L-1 de cinetina (CIN). Os melhores resultados foram obtidos com explantes de cotilédones, sendo que explantes de folhas mostraram uma capacidade baixa na indução de gemas. A variação na resposta organogênica em cotilédones de diferentes idades fisiológicas (1, 3, 5 e 7 dias após a germinação) mostraram que os melhores resultados foram obtidos com cotilédones de sete dias cultivados no meio MS suplementado com 1,5 mg.L-1 de AIA e 1,0 mg.L-1 de BA. O efeito do tipo de corte na resposta organogênica de explantes cotiledonares foi também avaliado. Os melhores resultados foram obtidos com explantes cortados transversalmente. Adição suplementar de sulfato de cobre ao meio de cultura resultou em uma melhora na qualidade da dos brotos regenerados. |
abstract_unstemmed |
Callus cultures from cotyledon and leaf explants of a Spanish cultivar of melon (Amarillo Oro) were tested for growth and morphogenic capacity on several culture media with different concentrations of IAA (indole-3-acetic acid) in combination with 1.0 mg.L-1 BA (6-benzylaminopurine) or 6.0 mg.L-1 KIN (kinetin). The best results were achieved with cotyledon explants. The leaf explants presented low bud formation capacity. Variability of organogenic response on cotyledons of different age (7, 5, 3 and 1-day-old) was evaluated. The age of explant had a significant influence on bud induction. Cotyledon explants from 7-day-old seedlings showed higher organogenic index and development of shoots when cultured onto MS medium supplemented with 1.5 mg.L-1 of IAA and 1.0 mg.L-1 of BA. The effect of cut type of cotyledonary explants on organogenic response was also investigated. Explants cut transversally showed the best results. The addition of copper sulfate in the culture medium promoted a qualitative improvement of the regenerated shoots.<br<Explantes de cotilédones e folhas do cultivar de melão Amarillo Oro foram cultivados para avaliação do potencial morfogenético em diferentes meios de cultura com diversas concentrações de ácido indolacético (AIA), em combinação com 1,0 mg.L-1 benziladenina (BA) e 6,0 mg.L-1 de cinetina (CIN). Os melhores resultados foram obtidos com explantes de cotilédones, sendo que explantes de folhas mostraram uma capacidade baixa na indução de gemas. A variação na resposta organogênica em cotilédones de diferentes idades fisiológicas (1, 3, 5 e 7 dias após a germinação) mostraram que os melhores resultados foram obtidos com cotilédones de sete dias cultivados no meio MS suplementado com 1,5 mg.L-1 de AIA e 1,0 mg.L-1 de BA. O efeito do tipo de corte na resposta organogênica de explantes cotiledonares foi também avaliado. Os melhores resultados foram obtidos com explantes cortados transversalmente. Adição suplementar de sulfato de cobre ao meio de cultura resultou em uma melhora na qualidade da dos brotos regenerados. |
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Morphogenetic response of cotyledon and leaf explants of melon (Cucumis melo L.) cv. Amarillo Oro |
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