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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
27/06/1995 |
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Data da última atualização: |
19/06/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TARRAND, J. J.; KRIEG, N. R.; DOBEREINER, J. |
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Título: |
A taxonomic study of the Spirillum lipoferum group, with descriptions of a new genus, Azospirillum gen. nov. and two species, Azospirillum lipoferum (Beijerinck) comb. nov. and Azospirillum brasilense sp. nov. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Canadian Journal of Microbiology, v.24, n.8, p.967-980, 1978. |
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Idioma: |
Inglês |
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Conteúdo: |
Sixty-one strains of the root-associated nitrogen fixer Spirillum lipoferum exhibited a similar morphology in peptone--succinate salts medium: vibrioid cells having a diameter of 1.0 micrometer. When grown in broth the cells had a single polar flagellum, but when grown on agar at 30 degrees C lateral flagella of shorter wavelength were also formed. The DNA base composition was 69--71 mol% guanine + cytosine when determined by thermal denaturation. DNA homology experiments indicated the occurrence of two distinct but related homology groups: 46 strains were in group I and 15 strains were in group II. Group II strains were distinguished by their ability to use glucose as a sole carbon source for growth in nitrogen-free medium, by their production of an acidic reaction in a peptone-based glucose medium, by their requirement for biotin, and by their formation of wider, longer, S-shaped or helical cells in semisolid nitrogen-free malate medium. The results indicate that two species exist, and on the basis of their characteristics it is proposed that they be assigned to a new genus, Azospirillum. Strians belonging to group II are named A. lipoferum (Beijerinck) comb. nov., while those belonging to group I are named A. brasilense sp. nov. Strain Sp 59b (ATCC29707) is proposed as the neotype strain for A. lipoferum, and strain Sp 7 (ATCC 29145) is proposed as the type strain for A. brasilense. |
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Palavras-Chave: |
UAPNPBS. |
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Thesagro: |
Fisiologia; Gramínea; Raiz; Rizosfera; Taxonomia. |
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Thesaurus Nal: |
Azospirillum brasilense. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/160851/1/A-taxonomic-study-of-the-Spirillum-lipoferum-group.pdf
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Marc: |
LEADER 02153naa a2200229 a 4500
001 1600745
005 2017-06-19
008 1978 bl uuuu u00u1 u #d
100 1 $aTARRAND, J. J.
245 $aA taxonomic study of the Spirillum lipoferum group, with descriptions of a new genus, Azospirillum gen. nov. and two species, Azospirillum lipoferum (Beijerinck) comb. nov. and Azospirillum brasilense sp. nov.
260 $c1978
520 $aSixty-one strains of the root-associated nitrogen fixer Spirillum lipoferum exhibited a similar morphology in peptone--succinate salts medium: vibrioid cells having a diameter of 1.0 micrometer. When grown in broth the cells had a single polar flagellum, but when grown on agar at 30 degrees C lateral flagella of shorter wavelength were also formed. The DNA base composition was 69--71 mol% guanine + cytosine when determined by thermal denaturation. DNA homology experiments indicated the occurrence of two distinct but related homology groups: 46 strains were in group I and 15 strains were in group II. Group II strains were distinguished by their ability to use glucose as a sole carbon source for growth in nitrogen-free medium, by their production of an acidic reaction in a peptone-based glucose medium, by their requirement for biotin, and by their formation of wider, longer, S-shaped or helical cells in semisolid nitrogen-free malate medium. The results indicate that two species exist, and on the basis of their characteristics it is proposed that they be assigned to a new genus, Azospirillum. Strians belonging to group II are named A. lipoferum (Beijerinck) comb. nov., while those belonging to group I are named A. brasilense sp. nov. Strain Sp 59b (ATCC29707) is proposed as the neotype strain for A. lipoferum, and strain Sp 7 (ATCC 29145) is proposed as the type strain for A. brasilense.
650 $aAzospirillum brasilense
650 $aFisiologia
650 $aGramínea
650 $aRaiz
650 $aRizosfera
650 $aTaxonomia
653 $aUAPNPBS
700 1 $aKRIEG, N. R.
700 1 $aDOBEREINER, J.
773 $tCanadian Journal of Microbiology$gv.24, n.8, p.967-980, 1978.
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Embrapa Agrobiologia (CNPAB) |
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| 13. |  | BOMFIM, M. A. D.; ALBUQUERQUE, F. H. M. A. R. de; SOUZA, R. T. de. Papel da nutrição sobre a reprodução ovina. Acta Veterinaria Brasilica, Mossoró, v. 8, Supl. 2, p. 372-379, 2014. Trabalho apresentado nos Anais do VII Congresso Norte Nordeste de Reprodução Anima (CONERA), Mossoró, maio, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| Registros recuperados : 84 | |
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