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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
07/08/2001 |
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Data da última atualização: |
07/08/2001 |
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Autoria: |
LEBSKY, V. K.; GONZALEZ-BASHAN, L. E.; BASHAN, Y. |
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Título: |
Ultrastructure of interaction in alginate beads between the microalga chlorella vulgaris with its natural associative bacterium Phyllobacterium myrsinacearum and with the plant growth-promoting bacterium Azospirillum brasiliense. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Canadian Journal of Microbiology, Ottawa, v. 47, p. 1-8, 2001. |
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Idioma: |
Inglês |
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Conteúdo: |
Chlorella vulgaris, a microalga often used in wastewater treatment, was coimmobilized and coincubated either with the plant growth-promoting bacterium Azospirillum brasiliense, or with its natural associative bacterium Phyllobacterium myrsinacearum, in alginate beads designed for advanced wastewater treatment. Interactions between the microalga and each of the bacterial species were followed using transmission electron microscopy for 10 days. Initially, most of the small cavities within the beads were colonized by microcolonies of only one microorganis, regard-lees of the species cocultured with the microalga. Subsequently, the bacterial and microalgal microcolonies merged to form large, mixed colonies within the cavities. At this stage, the effect of bacterial association with the microalga differed depending on the bacterium present. Thought the microalga entered a senescence phase in the presence of P. myrsinacearum, it remained in a growth phase in the presence of A. brasilense. This study suggest that there are commensal interactions between the microalga and the two plant associative bacteria, and that with time the bacterial species determined whether the outcome for the microalga is senescence or continuos multiplication. |
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Palavras-Chave: |
Electron. |
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Thesagro: |
Bactéria; Microscopia Eletrônica. |
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Thesaurus Nal: |
microscopy. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01953naa a2200193 a 4500
001 1621225
005 2001-08-07
008 2001 bl --- 0-- u #d
100 1 $aLEBSKY, V. K.
245 $aUltrastructure of interaction in alginate beads between the microalga chlorella vulgaris with its natural associative bacterium Phyllobacterium myrsinacearum and with the plant growth-promoting bacterium Azospirillum brasiliense.
260 $c2001
520 $aChlorella vulgaris, a microalga often used in wastewater treatment, was coimmobilized and coincubated either with the plant growth-promoting bacterium Azospirillum brasiliense, or with its natural associative bacterium Phyllobacterium myrsinacearum, in alginate beads designed for advanced wastewater treatment. Interactions between the microalga and each of the bacterial species were followed using transmission electron microscopy for 10 days. Initially, most of the small cavities within the beads were colonized by microcolonies of only one microorganis, regard-lees of the species cocultured with the microalga. Subsequently, the bacterial and microalgal microcolonies merged to form large, mixed colonies within the cavities. At this stage, the effect of bacterial association with the microalga differed depending on the bacterium present. Thought the microalga entered a senescence phase in the presence of P. myrsinacearum, it remained in a growth phase in the presence of A. brasilense. This study suggest that there are commensal interactions between the microalga and the two plant associative bacteria, and that with time the bacterial species determined whether the outcome for the microalga is senescence or continuos multiplication.
650 $amicroscopy
650 $aBactéria
650 $aMicroscopia Eletrônica
653 $aElectron
700 1 $aGONZALEZ-BASHAN, L. E.
700 1 $aBASHAN, Y.
773 $tCanadian Journal of Microbiology, Ottawa$gv. 47, p. 1-8, 2001.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| 4. |  | MARQUES, D. V.; VEDOVOTO, G. L.; AVILA, A. F. D.; SOUZA, M. O. de. Avaliação dos impactos sociais de tecnologias agropecuárias: geração de empregos. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 46., 2008, Rio Branco, AC. [Anais...]. Rio Branco, AC: SOBER, 2008.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Unidades Centrais. |
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| 13. | | CAVALCANTI FILHO, P. G.; SOUZA, D. T. de; MARTINHO, P. R. R.; SOUZA, M. O. de. Evolução estrutural na agropecuária da Amazônia brasileira entre 2006 e 2017. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 61.; 2021, Piracicaba, SP. Anais... Piracicaba, SP: Esalq/USP, 2023. 20 p. Sober 2023.| Tipo: Artigo em Anais de Congresso |
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| 15. | | SOUZA, G. da S. e; SOUZA, M. O. de; MARQUES, D. V.; GAZZOLA, R.; MARRA, R. Previsões para o mercado de carnes. In: Revista de Economia e Sociologia Rural. Piracicaba, SP, vol. 49, nº 02, p. 473-492, abr/jun 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
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| 18. | | ARAUJO, M. de; OLIVEIRA, F. T. G. de; MARRA, R.; SOUZA, M. O. de. Sugarcane: the evolution of technological thinking in agriculture. In: Revista de Política Agrícola, Brasília, DF, ano 19, n. 4, p. 65-77, Out./Nov./Dez. 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Unidades Centrais. |
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| 20. | | VEDOVOTO, G. L.; MARQUES, D. V.; AVILA, A. F. D.; SOUZA, M. O. de; RIBEIRO, L. F. M. Avaliação de impactos sobre o conhecimento, capacitação e político-institucional da pesquisa gerada pela Embrapa. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 46., 2008, Rio Branco, AC. [Anais...]. Rio Branco, AC: SOBER, 2008.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 29 | |
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