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Registro Completo |
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
28/09/2020 |
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Data da última atualização: |
28/09/2020 |
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Autoria: |
BATISTA, D. S.; CASTRO, K. M. de; RIBEIRO, D. M.; CAIXETA, E. T.; SANTOS, M. de O.; VICCINI, L. F.; OTONI, W. C. |
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Afiliação: |
DIEGO SILVA BATISTA, UNIVERSIDADE FEDERAL DE VIÇOSA; KAMILA MOTTA DE CASTRO, UNIVERSIDADE FEDERAL DE VIÇOSA; DIMAS MENDES RIBEIRO, UNIVERSIDADE FEDERAL DE VIÇOSA; EVELINE TEIXEIRA CAIXETA MOURA, CNPCa; MARCELO DE OLIVEIRA SANTOS, UNIVERSIDADE FEDERAL DE JUIZ DE FORA; LYDERSON FACIO VICCINI, UNIVERSIDADE FEDERAL DE JUIZ DE FORA; WAGNER CAMPOS OTONI, UNIVERSIDADE FEDERAL DE JUIZ DE FORA. |
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Título: |
Ethylene Responses and ACC oxidase Gene Expression in Lippia alba (Verbenaceae) Chemotypes with Varying Ploidy Levels. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In Vitro Cellular & Developmental Biology - Plant, v. 53, n. 3, p. 278-284, 2017. |
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DOI: |
10.1007/s11627-017-9827-4 |
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Idioma: |
Inglês |
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Conteúdo: |
Lippia alba (Mill.) N. E. Br ex Britton & P. Wilson is a species of great economic importance due to the medicinal activity conferred by its essential oils. Ethylene (ET) is a gaseous hormone that affects several processes in plant growth and development. This hormone is synthesized through a reaction in which 1-aminocyclopropane-1-carboxylic acid (ACC) is converted to ET by the action of the enzyme ACC oxidase (ACO). The ET activity in three L. alba chemotypes (BGEN-01, triploid; BGEN-02, diploid; and BGEN-42, hexaploid) was evaluated by culturing plants in vitro in the presence of the ET precursor (ACC), scavenger mercury perchloride (MP), the inhibitors aminoethoxyvinylglycine (AVG) and silver thiosulfate (STS), and a CO2-enriched atmosphere. Leaf abscission rate, ET accumulation, and ACO gene expression (LaACO) were investigated. Leaf abscission was higher in BGEN-42, regardless of the precursor/inhibitor. ACC had the highest ET accumulation in BGEN-02 and BGEN-01, whereas BGEN-42 presented lower ET accumulation than the control. MP and AVG were effective in preventing ET production when compared to the control. LaACO was upregulated in BGEN-01 and BGEN-42 treated with ACC and in BGEN-01 treated with STS. In the CO2 enrichment experiments, LaACO expression was higher in BGEN-42 in the treatments without forced ventilation. Thus, the expression of this gene in L. alba can be altered by elevating CO2 levels and also by the addition of ACC. This is the first report of ET interactions in L. alba cultured in vitro. MenosLippia alba (Mill.) N. E. Br ex Britton & P. Wilson is a species of great economic importance due to the medicinal activity conferred by its essential oils. Ethylene (ET) is a gaseous hormone that affects several processes in plant growth and development. This hormone is synthesized through a reaction in which 1-aminocyclopropane-1-carboxylic acid (ACC) is converted to ET by the action of the enzyme ACC oxidase (ACO). The ET activity in three L. alba chemotypes (BGEN-01, triploid; BGEN-02, diploid; and BGEN-42, hexaploid) was evaluated by culturing plants in vitro in the presence of the ET precursor (ACC), scavenger mercury perchloride (MP), the inhibitors aminoethoxyvinylglycine (AVG) and silver thiosulfate (STS), and a CO2-enriched atmosphere. Leaf abscission rate, ET accumulation, and ACO gene expression (LaACO) were investigated. Leaf abscission was higher in BGEN-42, regardless of the precursor/inhibitor. ACC had the highest ET accumulation in BGEN-02 and BGEN-01, whereas BGEN-42 presented lower ET accumulation than the control. MP and AVG were effective in preventing ET production when compared to the control. LaACO was upregulated in BGEN-01 and BGEN-42 treated with ACC and in BGEN-01 treated with STS. In the CO2 enrichment experiments, LaACO expression was higher in BGEN-42 in the treatments without forced ventilation. Thus, the expression of this gene in L. alba can be altered by elevating CO2 levels and also by the addition of ACC. This is the first report of ET in... Mostrar Tudo |
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Palavras-Chave: |
Forced ventilation. |
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Thesaurus Nal: |
Carbon dioxide; Leaf abscission; Polyploidy. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02346naa a2200253 a 4500
001 2125148
005 2020-09-28
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1007/s11627-017-9827-4$2DOI
100 1 $aBATISTA, D. S.
245 $aEthylene Responses and ACC oxidase Gene Expression in Lippia alba (Verbenaceae) Chemotypes with Varying Ploidy Levels.$h[electronic resource]
260 $c2017
520 $aLippia alba (Mill.) N. E. Br ex Britton & P. Wilson is a species of great economic importance due to the medicinal activity conferred by its essential oils. Ethylene (ET) is a gaseous hormone that affects several processes in plant growth and development. This hormone is synthesized through a reaction in which 1-aminocyclopropane-1-carboxylic acid (ACC) is converted to ET by the action of the enzyme ACC oxidase (ACO). The ET activity in three L. alba chemotypes (BGEN-01, triploid; BGEN-02, diploid; and BGEN-42, hexaploid) was evaluated by culturing plants in vitro in the presence of the ET precursor (ACC), scavenger mercury perchloride (MP), the inhibitors aminoethoxyvinylglycine (AVG) and silver thiosulfate (STS), and a CO2-enriched atmosphere. Leaf abscission rate, ET accumulation, and ACO gene expression (LaACO) were investigated. Leaf abscission was higher in BGEN-42, regardless of the precursor/inhibitor. ACC had the highest ET accumulation in BGEN-02 and BGEN-01, whereas BGEN-42 presented lower ET accumulation than the control. MP and AVG were effective in preventing ET production when compared to the control. LaACO was upregulated in BGEN-01 and BGEN-42 treated with ACC and in BGEN-01 treated with STS. In the CO2 enrichment experiments, LaACO expression was higher in BGEN-42 in the treatments without forced ventilation. Thus, the expression of this gene in L. alba can be altered by elevating CO2 levels and also by the addition of ACC. This is the first report of ET interactions in L. alba cultured in vitro.
650 $aCarbon dioxide
650 $aLeaf abscission
650 $aPolyploidy
653 $aForced ventilation
700 1 $aCASTRO, K. M. de
700 1 $aRIBEIRO, D. M.
700 1 $aCAIXETA, E. T.
700 1 $aSANTOS, M. de O.
700 1 $aVICCINI, L. F.
700 1 $aOTONI, W. C.
773 $tIn Vitro Cellular & Developmental Biology - Plant$gv. 53, n. 3, p. 278-284, 2017.
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Registro original: |
Embrapa Café (CNPCa) |
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Biblioteca |
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Origem |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
20/06/2000 |
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Data da última atualização: |
09/06/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SOUZA, I. R. P.; MAGALHAES, P. C.; MEYER, L. E.; PIRES, N. M.; ANDRADE, C. L. T. |
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Afiliação: |
ISABEL REGINA PRAZERES DE SOUZA, CNPMS; PAULO CESAR MAGALHAES, CNPMS. |
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Título: |
Alterações morfo-fisiológicas no grão de pólen e atividade da alcool desidrogenase em milho sob diferentes frequências de encharcamento. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE MILHO E SORGO, 23., 2000, Uberlândia, MG. A inovação tecnológica e a competividade no contexto dos mercados globalizados: resumos expandidos. Sete Lagoas: ABMS: Embrapa Milho e Sorgo; Uberlândia: Universidade Federal de Uberlandia, 2000. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Alcohol; Dehydrogenase; Encharcamento; Maize; Waterlogging. |
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Thesagro: |
Álcool; Desidrogenase; Milho; Pólen; Zea Mays. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/32913/1/Alteracoes-morfo.pdf
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Marc: |
LEADER 01030nam a2200277 a 4500
001 1484036
005 2018-06-09
008 2000 bl uuuu u00u1 u #d
100 1 $aSOUZA, I. R. P.
245 $aAlterações morfo-fisiológicas no grão de pólen e atividade da alcool desidrogenase em milho sob diferentes frequências de encharcamento.$h[electronic resource]
260 $aIn: CONGRESSO NACIONAL DE MILHO E SORGO, 23., 2000, Uberlândia, MG. A inovação tecnológica e a competividade no contexto dos mercados globalizados: resumos expandidos. Sete Lagoas: ABMS: Embrapa Milho e Sorgo; Uberlândia: Universidade Federal de Uberlandia$c2000
300 $c1 CD-ROM.
650 $aÁlcool
650 $aDesidrogenase
650 $aMilho
650 $aPólen
650 $aZea Mays
653 $aAlcohol
653 $aDehydrogenase
653 $aEncharcamento
653 $aMaize
653 $aWaterlogging
700 1 $aMAGALHAES, P. C.
700 1 $aMEYER, L. E.
700 1 $aPIRES, N. M.
700 1 $aANDRADE, C. L. T.
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Embrapa Milho e Sorgo (CNPMS) |
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