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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
13/01/1999 |
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Data da última atualização: |
13/01/1999 |
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Autoria: |
OLIVARES, F. L.; BALDANI, V. L. D.; REIS, V. M.; BALDANI, J. I.; DOBEREINER, Johanna. |
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Título: |
Occurrence of the endophytic diazotrophs Herbaspirillum spp. in roots, stems, and leaves, predominantly of gramineae. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Biology and Fertility of Soils, Berlin, v. 21, n. 3, p. 197-200, 1996. |
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Idioma: |
Inglês |
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Conteúdo: |
Since the first description of Herbaspirillum seropedicae in 1986, few data have been published on this diazotroph, possibly due to difficulties in isolating it from soil. In the present study we found that this bacterium seems to be an obligate endophyte which has been isolated from roots, stems, and leaves of a large number of samples of more than 10 different species of the Gramineae family, but only exceptionally from other plants. H. rubrisubalbicans, previously misnamed as "Pseudomonas" rubrisubalbicans, and known as a mild pathogen of sugar cane causing mottlod stripe disease, confirms the endophytic habitat of this genus. This species occurs in roots, stems, and leaves of sugarcane and seems to be restricted to this crop. Inoculation of strains from both species into soil in high numbers resulted in a rapid decline in their numbers. In only 30 days the population of Herbaspirillum spp. in soil decreased below detection limits (<100 cells g-1). When sorghum was planted in this soil, the bacteria reappeared and multiplied within the plant tissues. |
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Palavras-Chave: |
BNF; Diazotofico; Diazotrophs; FBN; Fixação biologica de nitrogenio; Nitrogen fixing bacteria; Sugar cane; Survival. |
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Thesagro: |
Cana de Açúcar; Gramínea; Gramineae; Parasito de Planta; Sobrevivência; Solo. |
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Thesaurus Nal: |
endophytes; Herbaspirillum; soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02104naa a2200373 a 4500
001 1620965
005 1999-01-13
008 1996 bl uuuu u00u1 u #d
100 1 $aOLIVARES, F. L.
245 $aOccurrence of the endophytic diazotrophs Herbaspirillum spp. in roots, stems, and leaves, predominantly of gramineae.
260 $c1996
520 $aSince the first description of Herbaspirillum seropedicae in 1986, few data have been published on this diazotroph, possibly due to difficulties in isolating it from soil. In the present study we found that this bacterium seems to be an obligate endophyte which has been isolated from roots, stems, and leaves of a large number of samples of more than 10 different species of the Gramineae family, but only exceptionally from other plants. H. rubrisubalbicans, previously misnamed as "Pseudomonas" rubrisubalbicans, and known as a mild pathogen of sugar cane causing mottlod stripe disease, confirms the endophytic habitat of this genus. This species occurs in roots, stems, and leaves of sugarcane and seems to be restricted to this crop. Inoculation of strains from both species into soil in high numbers resulted in a rapid decline in their numbers. In only 30 days the population of Herbaspirillum spp. in soil decreased below detection limits (<100 cells g-1). When sorghum was planted in this soil, the bacteria reappeared and multiplied within the plant tissues.
650 $aendophytes
650 $aHerbaspirillum
650 $asoil
650 $aCana de Açúcar
650 $aGramínea
650 $aGramineae
650 $aParasito de Planta
650 $aSobrevivência
650 $aSolo
653 $aBNF
653 $aDiazotofico
653 $aDiazotrophs
653 $aFBN
653 $aFixação biologica de nitrogenio
653 $aNitrogen fixing bacteria
653 $aSugar cane
653 $aSurvival
700 1 $aBALDANI, V. L. D.
700 1 $aREIS, V. M.
700 1 $aBALDANI, J. I.
700 1 $aDOBEREINER, Johanna.
773 $tBiology and Fertility of Soils, Berlin$gv. 21, n. 3, p. 197-200, 1996.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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