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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
04/02/2002 |
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Data da última atualização: |
30/03/2017 |
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Autoria: |
WATANABE, H.; INABA, H.; HASTINGS, J. W. |
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Título: |
Effects of aldehyde and internal ions on bioluminescence expression of Photobacterium phosphoreum. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Archives of Microbiology, v.156, p.1-4, 1991. |
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Idioma: |
Inglês |
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Conteúdo: |
In a complex medium, cells of Photobacterium phosphoreum (strain 496) grow equally with 1% and 3% NaCl, but luminescense occurs only with 3% NaCl in the medium. However, the su[[ression of luminescense is not attributable to the lack of luciferase; log phase cells growing in 1% NaCl will develop luminescense following a shift to 3% NaCl, which is accompanied by an increase of intracellular potassium. Tetradecanal stimulated bioluminescense in a 1% NaCl culture, and also in the presence of nalidixic acid, an inhibitor or gyrase. It is thus suggested that the suppression of luminescense in 1% NaCl or in 3% NaCl with nalidixic acid is due to a deficiency in the synthesis of intracellular aldehyde. The increase in intracellular potassium that occurs upon shifting from 1% to 3% NaCl may also relate to aldehyde synthesis gene expression via activation of gyrase, or via an increase in negative supercoiling of the chromosome. However, since an initial decrease of light intensity is still observed during culture even with the addtion of tetradecanal, an additional factor related to cell density must also be involved in bioluminescense expression. |
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Palavras-Chave: |
Aldehyde; Bioluminescense; DNA gyrase; Efeito; Potassio de ferro; Potassium ion. |
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Thesagro: |
Aldeído; Bactéria. |
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Thesaurus Nal: |
gene expression; luciferase; nalidixic acid; osmoregulation; Photobacterium phosphoreum. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01965naa a2200301 a 4500
001 1809719
005 2017-03-30
008 1991 bl --- 0-- u #d
100 1 $aWATANABE, H.
245 $aEffects of aldehyde and internal ions on bioluminescence expression of Photobacterium phosphoreum.
260 $c1991
520 $aIn a complex medium, cells of Photobacterium phosphoreum (strain 496) grow equally with 1% and 3% NaCl, but luminescense occurs only with 3% NaCl in the medium. However, the su[[ression of luminescense is not attributable to the lack of luciferase; log phase cells growing in 1% NaCl will develop luminescense following a shift to 3% NaCl, which is accompanied by an increase of intracellular potassium. Tetradecanal stimulated bioluminescense in a 1% NaCl culture, and also in the presence of nalidixic acid, an inhibitor or gyrase. It is thus suggested that the suppression of luminescense in 1% NaCl or in 3% NaCl with nalidixic acid is due to a deficiency in the synthesis of intracellular aldehyde. The increase in intracellular potassium that occurs upon shifting from 1% to 3% NaCl may also relate to aldehyde synthesis gene expression via activation of gyrase, or via an increase in negative supercoiling of the chromosome. However, since an initial decrease of light intensity is still observed during culture even with the addtion of tetradecanal, an additional factor related to cell density must also be involved in bioluminescense expression.
650 $agene expression
650 $aluciferase
650 $analidixic acid
650 $aosmoregulation
650 $aPhotobacterium phosphoreum
650 $aAldeído
650 $aBactéria
653 $aAldehyde
653 $aBioluminescense
653 $aDNA gyrase
653 $aEfeito
653 $aPotassio de ferro
653 $aPotassium ion
700 1 $aINABA, H.
700 1 $aHASTINGS, J. W.
773 $tArchives of Microbiology$gv.156, p.1-4, 1991.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
19/02/2008 |
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Data da última atualização: |
18/03/2014 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ABREU, D. C. A. de; PINTO, F. de S.; SANTOS, P. dos; MEDEIROS, A. C. de S. |
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Afiliação: |
Daniela Cleide Azevedo de Abreu, Universidade Estadual Paulista; Fernanda de Souza Pinto, Faculdades Integradas Espírita - PR; Priscilla dos Santos, Universidade Estadual Paulista; Antonio Carlos de Souza Medeiros, Embrapa Florestas. |
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Título: |
Teste de condutividade elétrica em sementes de aroeira-vermelha (Schinus terebinthifolius) Raddi. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 6., 2007, Colombo. Anais. Colombo: Embrapa Florestas, 2007. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Notas: |
Resumo. |
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Palavras-Chave: |
Aroeira-vermelha. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/99530/1/2007-RAC-TesteCondutividade.pdf
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Marc: |
LEADER 00591nam a2200169 a 4500
001 1313881
005 2014-03-18
008 2007 bl uuuu u00u1 u #d
100 1 $aABREU, D. C. A. de
245 $aTeste de condutividade elétrica em sementes de aroeira-vermelha (Schinus terebinthifolius) Raddi.
260 $aIn: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 6., 2007, Colombo. Anais. Colombo: Embrapa Florestas$c2007
300 $c1 CD-ROM.
500 $aResumo.
653 $aAroeira-vermelha
700 1 $aPINTO, F. de S.
700 1 $aSANTOS, P. dos
700 1 $aMEDEIROS, A. C. de S.
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