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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
15/12/1995 |
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Data da última atualização: |
21/10/2008 |
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Autoria: |
CAMPO, R. J. |
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Afiliação: |
EMBRAPA-CNPSo. Londrina, PR. |
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Título: |
Residual effects of aluminium on Bradyrhizobium japonicum in defined medium and soil solutions. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Reading: The University of Reading, 1995. |
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Páginas: |
221p. |
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Idioma: |
Inglês
Português |
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Notas: |
Ph.D. Thesis. |
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Conteúdo: |
Bradyrhizobium japonicum strains were exposed to AL in solid defined media and in soil solutions from acid soils extracted by H2O or 0.01 M CaCl2. Residual effects of these exposures to Al were evaluated by tolerance and survival in media with Al, sensitivity to antibiotics, nodulation ability and N2 fixation effectiveness. B. japonicum strains showed variation in their original tolerance to Al. Direct effects of Al reduced the rate of growth or even stopped the growth. There were no residual effects of Al on the original tolerance to Al, on the survival in media with Al, on the sensitivity to the antibiotics kanamycin and rifampicin and, on the nodulation ability and N2 fixation effectiveness. Exposure of B. japonicum strains to Al in soil solution did not alter tolerance to Al and sensitivity to the antibiotics kanamycin and rifampicin but Mn caused a residual inhibitory effect on the survival in media with Al even when the strains were subcultured in media without Mn. Residual effects of exposing B. japonicum strains to Mn in soil solutions were observed for N2 fixation of soyabean plants. For strain 3ib/143 the N yield was reduced, SEMIA 587 was not affected and for SEMIA 5073 shoot dry weight, N yield and nodulation were increased. It is clear that high concentrations of Al and Mn have a range of effects on B. japonicum in terms of growth and survival and N2 fixation by soyabean. Al caused direct effects on growth which may effect the N2 fixation of soyabean. Mn, besides having a direct effect on growth, ... MenosBradyrhizobium japonicum strains were exposed to AL in solid defined media and in soil solutions from acid soils extracted by H2O or 0.01 M CaCl2. Residual effects of these exposures to Al were evaluated by tolerance and survival in media with Al, sensitivity to antibiotics, nodulation ability and N2 fixation effectiveness. B. japonicum strains showed variation in their original tolerance to Al. Direct effects of Al reduced the rate of growth or even stopped the growth. There were no residual effects of Al on the original tolerance to Al, on the survival in media with Al, on the sensitivity to the antibiotics kanamycin and rifampicin and, on the nodulation ability and N2 fixation effectiveness. Exposure of B. japonicum strains to Al in soil solution did not alter tolerance to Al and sensitivity to the antibiotics kanamycin and rifampicin but Mn caused a residual inhibitory effect on the survival in media with Al even when the strains were subcultured in media without Mn. Residual effects of exposing B. japonicum strains to Mn in soil solutions were observed for N2 fixation of soyabean plants. For strain 3ib/143 the N yield was reduced, SEMIA 587 was not affected and for SEMIA 5073 shoot dry weight, N yield and nodulation were increased. It is clear that high concentrations of Al and Mn have a range of effects on B. japonicum in terms of growth and survival and N2 fixation by soyabean. Al caused direct effects on growth which may effect the N2 fixation of soyabean. Mn, beside... Mostrar Tudo |
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Palavras-Chave: |
Aluminium; Animais; Brasil; Caracterizacao de linhagem; Cultivation; Cultivo; Culture medium; Efeito toxico; Growth medium; Inglaterra; Meio de crescimento; Microorganismos; Residual effect; Soyabean; Strain characterization; Tolerance; Tolerancia; Toxic effect. |
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Thesagro: |
Acidez; Alumínio; Bactéria; Bradyrhizobium Japonicum; Efeito Residual; Fisiologia; Hidrolise; Manganês; Meio de Cultura; Microbiologia; Pesquisa; Soja; Solo; Solubilidade; Solução. |
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Thesaurus NAL: |
acidity; animals; Brazil; culture media; England; hydrogen; hydrolysis; manganese; microbiology; microorganisms; physiology; research; soil; soil solution; solubility. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03264nam a2200709 a 4500
001 1459273
005 2008-10-21
008 1995 bl uuuu m 00u1 u #d
100 1 $aCAMPO, R. J.
245 $aResidual effects of aluminium on Bradyrhizobium japonicum in defined medium and soil solutions.
260 $aReading: The University of Reading$c1995
300 $a221p.
500 $aPh.D. Thesis.
520 $aBradyrhizobium japonicum strains were exposed to AL in solid defined media and in soil solutions from acid soils extracted by H2O or 0.01 M CaCl2. Residual effects of these exposures to Al were evaluated by tolerance and survival in media with Al, sensitivity to antibiotics, nodulation ability and N2 fixation effectiveness. B. japonicum strains showed variation in their original tolerance to Al. Direct effects of Al reduced the rate of growth or even stopped the growth. There were no residual effects of Al on the original tolerance to Al, on the survival in media with Al, on the sensitivity to the antibiotics kanamycin and rifampicin and, on the nodulation ability and N2 fixation effectiveness. Exposure of B. japonicum strains to Al in soil solution did not alter tolerance to Al and sensitivity to the antibiotics kanamycin and rifampicin but Mn caused a residual inhibitory effect on the survival in media with Al even when the strains were subcultured in media without Mn. Residual effects of exposing B. japonicum strains to Mn in soil solutions were observed for N2 fixation of soyabean plants. For strain 3ib/143 the N yield was reduced, SEMIA 587 was not affected and for SEMIA 5073 shoot dry weight, N yield and nodulation were increased. It is clear that high concentrations of Al and Mn have a range of effects on B. japonicum in terms of growth and survival and N2 fixation by soyabean. Al caused direct effects on growth which may effect the N2 fixation of soyabean. Mn, besides having a direct effect on growth, ...
650 $aacidity
650 $aanimals
650 $aBrazil
650 $aculture media
650 $aEngland
650 $ahydrogen
650 $ahydrolysis
650 $amanganese
650 $amicrobiology
650 $amicroorganisms
650 $aphysiology
650 $aresearch
650 $asoil
650 $asoil solution
650 $asolubility
650 $aAcidez
650 $aAlumínio
650 $aBactéria
650 $aBradyrhizobium Japonicum
650 $aEfeito Residual
650 $aFisiologia
650 $aHidrolise
650 $aManganês
650 $aMeio de Cultura
650 $aMicrobiologia
650 $aPesquisa
650 $aSoja
650 $aSolo
650 $aSolubilidade
650 $aSolução
653 $aAluminium
653 $aAnimais
653 $aBrasil
653 $aCaracterizacao de linhagem
653 $aCultivation
653 $aCultivo
653 $aCulture medium
653 $aEfeito toxico
653 $aGrowth medium
653 $aInglaterra
653 $aMeio de crescimento
653 $aMicroorganismos
653 $aResidual effect
653 $aSoyabean
653 $aStrain characterization
653 $aTolerance
653 $aTolerancia
653 $aToxic effect
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