Micropropaga??o e conserva??o in vitro de Orthophytum mucugense Wand. e Concei??o
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Language: | Portuguese |
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Universidade Estadual de Feira de Santana
2016
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Online Access: | http://localhost:8080/tede/handle/tede/358 |
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ndltd-IBICT-oai-tede2.uefs.br-8080-tede-358 |
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Brom?lia Organog?nese Calog?nese Crescimento m?nimo Capacidade regenerativa Bromeliad Organogenesis Callogenesis Minimum growth Regenerative capacity CIENCIAS BIOLOGICAS::BIOLOGIA GERAL |
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Brom?lia Organog?nese Calog?nese Crescimento m?nimo Capacidade regenerativa Bromeliad Organogenesis Callogenesis Minimum growth Regenerative capacity CIENCIAS BIOLOGICAS::BIOLOGIA GERAL Lima, Andressa Priscila Pianc? Santos Micropropaga??o e conserva??o in vitro de Orthophytum mucugense Wand. e Concei??o |
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Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2016-07-19T23:28:56Z
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DISSERTA??O ANDRESSA PRISCILA PIANC? S. LIMA.pdf: 1903052 bytes, checksum: 3d8a27256e27d81bbdd1cf3ad9eee48f (MD5)
Previous issue date: 2016-03-23 === Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES === Chapada Diamantina ? BA presents endemic especies with ornamental potential among which is Orthophytum mucugense, which occurs in the municipality Mucug?. This species is a target of extractivism and it is considered vulnerable, rendering studies of propagation and conservation of the species necessary. Therefore, the objective of this study was to establish protocols of micropropagation and in vitro conservation of O. mucugense. To that end, morphogenetic responses were evaluated in three types of explants, stem, root and leaf under the effect of different concentrations of the plant growth regulators NAA, 2,4-D and BAP. Sprouts formation in stem explants by direct organogenesis, in basal leaf explants by indirect organogenesis and callus formation in basal root and leaf explants were obtained. The rooting of the shoots was carried out with 1 coal g.L-1 activated for 30 days, and microplants acclimatized in a greenhouse with direct exposure to the environment. These results evince that tissue culture is a viable tool for in vitro propagation of O. mucugense. In in vitro conservation the effect of the medium salts reduction, of osmotic agents and of the retardant ancymidol in the minimum growth of the plants were tested; after 300 days of cultivation, analysis of the plant growth, of the chlorophyll content and of the regenerative capacity were carried out. On the basis of these assessments, the ancymidol, in the concentrations used, is not efficient in minimal growth induction, and the reduction of MS salts to ?3, with the combination of 45 g.L-1 of sucrose with 7.8 g.L-1 of mannitol is indicated for in vitro conservation of O. mucugense. === A Chapada Diamantina ? BA apresenta esp?cies end?micas com potencial ornamental dentre as quais est? a Orthophytum mucugense, que ocorre no munic?pio de Mucug?. Esta esp?cie ? alvo de extrativismo e considerada como vulner?vel, sendo necess?rios estudos de propaga??o e conserva??o da mesma. Portanto, objetivou-se neste trabalho estabelecer protocolos de micropropaga??o e conserva??o in vitro de O. mucugense. Para isto foram avaliadas as respostas morfog?nicas em tr?s tipos de explantes, caulinar, radicular e foliar, sob efeito de diferentes concentra??es dos reguladores vegetais ANA, 2,4-D e BAP. Foram obtidas forma??o de brotos em explante caulinar por organog?nese direta, em explante foliar basal por organog?nese indireta e forma??o de calo em explante foliar basal e radicular. O enraizamento dos brotos foi realizado com 1 g.L-1 de carv?o ativado por 30 dias, e as microplantas aclimatizadas em casa de vegeta??o com exposi??o direta ao ambiente. Estes dados demonstram que a cultura de tecidos ? uma ferramenta vi?vel para a propaga??o in vitro de O. mucugense. Na conserva??o in vitro foram testados o efeito da redu??o de sais do meio, de agentes osm?ticos e do retardante ancymidol no crescimento m?nimo das plantas; ap?s 300 dias de cultivo foram realizadas an?lises de crescimento das mesmas, do teor de clorofila e da capacidade regenerativa. Com base nestas avalia??es o ancymidol, nas concentra??es utilizadas, n?o ? eficiente na indu??o do crescimento m?nimo, e a redu??o de sais MS para ?3 com a combina??o de 45 g.L-1 de sacarose com 7,8 g.L-1 de manitol ? indicada para conserva??o in vitro de O. mucugense. |
author2 |
Santana, Jos? Raniere Ferreira de |
author_facet |
Santana, Jos? Raniere Ferreira de Lima, Andressa Priscila Pianc? Santos |
author |
Lima, Andressa Priscila Pianc? Santos |
author_sort |
Lima, Andressa Priscila Pianc? Santos |
title |
Micropropaga??o e conserva??o in vitro de Orthophytum mucugense Wand. e Concei??o |
title_short |
Micropropaga??o e conserva??o in vitro de Orthophytum mucugense Wand. e Concei??o |
title_full |
Micropropaga??o e conserva??o in vitro de Orthophytum mucugense Wand. e Concei??o |
title_fullStr |
Micropropaga??o e conserva??o in vitro de Orthophytum mucugense Wand. e Concei??o |
title_full_unstemmed |
Micropropaga??o e conserva??o in vitro de Orthophytum mucugense Wand. e Concei??o |
title_sort |
micropropaga??o e conserva??o in vitro de orthophytum mucugense wand. e concei??o |
publisher |
Universidade Estadual de Feira de Santana |
publishDate |
2016 |
url |
http://localhost:8080/tede/handle/tede/358 |
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AT limaandressapriscilapiancsantos micropropagaoeconservaoinvitrodeorthophytummucugensewandeconceio |
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1718947441795923968 |
spelling |
ndltd-IBICT-oai-tede2.uefs.br-8080-tede-3582019-01-22T02:11:53Z Micropropaga??o e conserva??o in vitro de Orthophytum mucugense Wand. e Concei??o Lima, Andressa Priscila Pianc? Santos Santana, Jos? Raniere Ferreira de Brom?lia Organog?nese Calog?nese Crescimento m?nimo Capacidade regenerativa Bromeliad Organogenesis Callogenesis Minimum growth Regenerative capacity CIENCIAS BIOLOGICAS::BIOLOGIA GERAL Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2016-07-19T23:28:56Z No. of bitstreams: 1 DISSERTA??O ANDRESSA PRISCILA PIANC? S. LIMA.pdf: 1903052 bytes, checksum: 3d8a27256e27d81bbdd1cf3ad9eee48f (MD5) Made available in DSpace on 2016-07-19T23:28:56Z (GMT). No. of bitstreams: 1 DISSERTA??O ANDRESSA PRISCILA PIANC? S. LIMA.pdf: 1903052 bytes, checksum: 3d8a27256e27d81bbdd1cf3ad9eee48f (MD5) Previous issue date: 2016-03-23 Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES Chapada Diamantina ? BA presents endemic especies with ornamental potential among which is Orthophytum mucugense, which occurs in the municipality Mucug?. This species is a target of extractivism and it is considered vulnerable, rendering studies of propagation and conservation of the species necessary. Therefore, the objective of this study was to establish protocols of micropropagation and in vitro conservation of O. mucugense. To that end, morphogenetic responses were evaluated in three types of explants, stem, root and leaf under the effect of different concentrations of the plant growth regulators NAA, 2,4-D and BAP. Sprouts formation in stem explants by direct organogenesis, in basal leaf explants by indirect organogenesis and callus formation in basal root and leaf explants were obtained. The rooting of the shoots was carried out with 1 coal g.L-1 activated for 30 days, and microplants acclimatized in a greenhouse with direct exposure to the environment. These results evince that tissue culture is a viable tool for in vitro propagation of O. mucugense. In in vitro conservation the effect of the medium salts reduction, of osmotic agents and of the retardant ancymidol in the minimum growth of the plants were tested; after 300 days of cultivation, analysis of the plant growth, of the chlorophyll content and of the regenerative capacity were carried out. On the basis of these assessments, the ancymidol, in the concentrations used, is not efficient in minimal growth induction, and the reduction of MS salts to ?3, with the combination of 45 g.L-1 of sucrose with 7.8 g.L-1 of mannitol is indicated for in vitro conservation of O. mucugense. A Chapada Diamantina ? BA apresenta esp?cies end?micas com potencial ornamental dentre as quais est? a Orthophytum mucugense, que ocorre no munic?pio de Mucug?. Esta esp?cie ? alvo de extrativismo e considerada como vulner?vel, sendo necess?rios estudos de propaga??o e conserva??o da mesma. Portanto, objetivou-se neste trabalho estabelecer protocolos de micropropaga??o e conserva??o in vitro de O. mucugense. Para isto foram avaliadas as respostas morfog?nicas em tr?s tipos de explantes, caulinar, radicular e foliar, sob efeito de diferentes concentra??es dos reguladores vegetais ANA, 2,4-D e BAP. Foram obtidas forma??o de brotos em explante caulinar por organog?nese direta, em explante foliar basal por organog?nese indireta e forma??o de calo em explante foliar basal e radicular. O enraizamento dos brotos foi realizado com 1 g.L-1 de carv?o ativado por 30 dias, e as microplantas aclimatizadas em casa de vegeta??o com exposi??o direta ao ambiente. Estes dados demonstram que a cultura de tecidos ? uma ferramenta vi?vel para a propaga??o in vitro de O. mucugense. Na conserva??o in vitro foram testados o efeito da redu??o de sais do meio, de agentes osm?ticos e do retardante ancymidol no crescimento m?nimo das plantas; ap?s 300 dias de cultivo foram realizadas an?lises de crescimento das mesmas, do teor de clorofila e da capacidade regenerativa. Com base nestas avalia??es o ancymidol, nas concentra??es utilizadas, n?o ? eficiente na indu??o do crescimento m?nimo, e a redu??o de sais MS para ?3 com a combina??o de 45 g.L-1 de sacarose com 7,8 g.L-1 de manitol ? indicada para conserva??o in vitro de O. mucugense. 2016-07-19T23:28:56Z 2016-03-23 info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/masterThesis LIMA, Andressa Priscila Pianc? Santos. Micropropaga??o e conserva??o in vitro de Orthophytum mucugense Wand. e Concei??o. 2016. 92 f. Disserta??o (Mestrado Acad?mico em Recursos Gen?ticos Vegetais)- Universidade Estadual de Feira de Santana, Feira de Santana, 2016. http://localhost:8080/tede/handle/tede/358 por 8146646481622241874 600 600 600 600 5026123383450589282 -1634559385931244697 3590462550136975366 info:eu-repo/semantics/openAccess application/pdf Universidade Estadual de Feira de Santana Mestrado Acad?mico em Recursos Gen?ticos Vegetais UEFS Brasil DEPARTAMENTO DE CI?NCIAS BIOL?GICAS reponame:Biblioteca Digital de Teses e Dissertações da UEFS instname:Universidade Estadual de Feira de Santana instacron:UEFS |