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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
05/12/1994 |
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Data da última atualização: |
05/12/1994 |
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Autoria: |
BERZAGHI, C. F. P.; PFEIFER, R. M.; MATTOS, I. F. de A.; SARAIVA, I. R.; NEGREIROS, O. C. de; PINHEIRO, G. S.; BAITELLO, J. B.; MIGUEL, N. |
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Título: |
Avaliacao de ecossistemas florestais |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Revista do Instituto Florestal, v.3, n.2, p.127-136, 1989 |
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ISSN: |
0015-3826 |
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Idioma: |
Português |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00556naa a2200205 a 4500
001 1286020
005 1994-12-05
008 1989 bl uuuu u00u1 u #d
022 $a0015-3826
100 1 $aBERZAGHI, C. F. P.
245 $aAvaliacao de ecossistemas florestais
260 $c1989
700 1 $aPFEIFER, R. M.
700 1 $aMATTOS, I. F. de A.
700 1 $aSARAIVA, I. R.
700 1 $aNEGREIROS, O. C. de
700 1 $aPINHEIRO, G. S.
700 1 $aBAITELLO, J. B.
700 1 $aMIGUEL, N.
773 $tRevista do Instituto Florestal$gv.3, n.2, p.127-136, 1989
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
31/07/2018 |
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Data da última atualização: |
31/07/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
SANTOS, M. S. dos; VILELA, E. S. D.; PAZIANOTTO, R. A. A.; REYNALDO, E. F.; SILVA, E. H. F. M. da; BUENO, A. C. S. O.; MAY, A. |
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Afiliação: |
MICHELLI DE SOUZA DOS SANTOS, CAPES; ELKE SIMONI DIAS VILELA, CNPMA; RICARDO ANTONIO ALMEIDA PAZIANOTTO, CNPMA; ETORE FRANCISCO REYNALDO, Monsanto; EVANDRO HENRíQUE FIGUEIREDO MOURA DA SILVA, ESALQ-USP; ANA CAROLINA SONSIM DE OLIVEIRA BUENO, UFRA; ANDRE MAY, CNPMA. |
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Título: |
Evaluation of microbial and enzymatic communities in soil and rizosphere from soybean plants. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
African Crop Science Journal, v. 26, n. 1, p. 79-92, 2018. |
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DOI: |
http://dx.doi.org/10.4314/acsj.v26i1.6 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Understanding the biological and biochemical soil properties, as well as its enzymatic activity is important in designing an efficient alternative to demonstrate desired modifications in the soil. Such modifications are related to crop systems, cultivation practices or other human activities. The objective of this study was to evaluate the diversity of some microorganisms (Bacillus, Pseudomonas, Trichoderma and Fusarium) and enzymatic activity in soil from soybean crops with different yields. Soil sampling was determined according to the productivity yields of the property, which were divided into high, medium, and low yield. Microorganisms were evaluated by counting populations of fungi and bacteria through serial dilutions of total bacteria, Bacillus, Pseudomonas, Trichoderma and Fusarium. The b-glucosidase, acid phosphatase and arylsulphatase activities were determined by spectrophotometry after one hour of incubation at 37 oC, with the specific substrate p-nitrophenol-b-D-glucopyranoside, p-nitrophenol-phosphate and p-nitrophenyl sulphate, respectively, for each studied enzyme. Urease was determined by the ammonium release method, after incubating the soil with urea for two hours, at 37 oC. Soil samples from the high-yield plot had higher concentrations of Bacillus and total bacteria. The low-yield soil showed a higher level of colonies of the genus Fusarium. The studied enzyme activities (b-glycosidase, arylsulphatase and urea) were found at lower values in soil samples from the high-yield field and differed statistically from the low-yield field. However, in the rhizosphere samples, these enzymes had a higher activity in the high-yield field. In view of these results, it is possible that the yield of soybean plants influences the number of microorganisms and the enzymatic activity of the soil microbiota. MenosAbstract: Understanding the biological and biochemical soil properties, as well as its enzymatic activity is important in designing an efficient alternative to demonstrate desired modifications in the soil. Such modifications are related to crop systems, cultivation practices or other human activities. The objective of this study was to evaluate the diversity of some microorganisms (Bacillus, Pseudomonas, Trichoderma and Fusarium) and enzymatic activity in soil from soybean crops with different yields. Soil sampling was determined according to the productivity yields of the property, which were divided into high, medium, and low yield. Microorganisms were evaluated by counting populations of fungi and bacteria through serial dilutions of total bacteria, Bacillus, Pseudomonas, Trichoderma and Fusarium. The b-glucosidase, acid phosphatase and arylsulphatase activities were determined by spectrophotometry after one hour of incubation at 37 oC, with the specific substrate p-nitrophenol-b-D-glucopyranoside, p-nitrophenol-phosphate and p-nitrophenyl sulphate, respectively, for each studied enzyme. Urease was determined by the ammonium release method, after incubating the soil with urea for two hours, at 37 oC. Soil samples from the high-yield plot had higher concentrations of Bacillus and total bacteria. The low-yield soil showed a higher level of colonies of the genus Fusarium. The studied enzyme activities (b-glycosidase, arylsulphatase and urea) were found at lower values in so... Mostrar Tudo |
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Palavras-Chave: |
p-nitrophenol-b-D-glucopyranoside. |
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Thesagro: |
Bactéria; Enzima; Feijão; Fusarium; Rizosfera; Soja; Solo; Trichoderma. |
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Thesaurus NAL: |
Bacillus (bacteria); Bacterial communities; Pseudomonas. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/180608/1/2018AP17.pdf
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Marc: |
LEADER 02858naa a2200349 a 4500
001 2093711
005 2018-07-31
008 2018 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.4314/acsj.v26i1.6$2DOI
100 1 $aSANTOS, M. S. dos
245 $aEvaluation of microbial and enzymatic communities in soil and rizosphere from soybean plants.$h[electronic resource]
260 $c2018
520 $aAbstract: Understanding the biological and biochemical soil properties, as well as its enzymatic activity is important in designing an efficient alternative to demonstrate desired modifications in the soil. Such modifications are related to crop systems, cultivation practices or other human activities. The objective of this study was to evaluate the diversity of some microorganisms (Bacillus, Pseudomonas, Trichoderma and Fusarium) and enzymatic activity in soil from soybean crops with different yields. Soil sampling was determined according to the productivity yields of the property, which were divided into high, medium, and low yield. Microorganisms were evaluated by counting populations of fungi and bacteria through serial dilutions of total bacteria, Bacillus, Pseudomonas, Trichoderma and Fusarium. The b-glucosidase, acid phosphatase and arylsulphatase activities were determined by spectrophotometry after one hour of incubation at 37 oC, with the specific substrate p-nitrophenol-b-D-glucopyranoside, p-nitrophenol-phosphate and p-nitrophenyl sulphate, respectively, for each studied enzyme. Urease was determined by the ammonium release method, after incubating the soil with urea for two hours, at 37 oC. Soil samples from the high-yield plot had higher concentrations of Bacillus and total bacteria. The low-yield soil showed a higher level of colonies of the genus Fusarium. The studied enzyme activities (b-glycosidase, arylsulphatase and urea) were found at lower values in soil samples from the high-yield field and differed statistically from the low-yield field. However, in the rhizosphere samples, these enzymes had a higher activity in the high-yield field. In view of these results, it is possible that the yield of soybean plants influences the number of microorganisms and the enzymatic activity of the soil microbiota.
650 $aBacillus (bacteria)
650 $aBacterial communities
650 $aPseudomonas
650 $aBactéria
650 $aEnzima
650 $aFeijão
650 $aFusarium
650 $aRizosfera
650 $aSoja
650 $aSolo
650 $aTrichoderma
653 $ap-nitrophenol-b-D-glucopyranoside
700 1 $aVILELA, E. S. D.
700 1 $aPAZIANOTTO, R. A. A.
700 1 $aREYNALDO, E. F.
700 1 $aSILVA, E. H. F. M. da
700 1 $aBUENO, A. C. S. O.
700 1 $aMAY, A.
773 $tAfrican Crop Science Journal$gv. 26, n. 1, p. 79-92, 2018.
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Embrapa Meio Ambiente (CNPMA) |
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