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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
20/02/1997 |
Data da última atualização: |
03/01/2024 |
Autoria: |
GATTI, J. L.; DACHEAUX, J. L. |
Título: |
Mécanismes membranaires du controle de la mobilité des spermatozoides. Role du plasma séminal et de l'environnement ionique. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
Comptes Rendus de l'Academie d'Agriculture de France, v. 81, n. 5, p. 167-176, 1995. |
Idioma: |
Francês |
Conteúdo: |
Les spermatozoides de vertebres et d'invertebres, une fois formes dans les testicules, vont connaitre une phase d'inactivite pendant laquelle ils seront immobiles avec un metabolism reduit. |
Palavras-Chave: |
Motilidade espermatica; Plasma seminal. |
Thesagro: |
Membrana. |
Thesaurus Nal: |
Ions; Reproduction; Seminal plasma; Sperm motility; Spermatozoa. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 00890naa a2200229 a 4500 001 1522410 005 2024-01-03 008 1995 bl uuuu u00u1 u #d 100 1 $aGATTI, J. L. 245 $aMécanismes membranaires du controle de la mobilité des spermatozoides. Role du plasma séminal et de l'environnement ionique. 260 $c1995 520 $aLes spermatozoides de vertebres et d'invertebres, une fois formes dans les testicules, vont connaitre une phase d'inactivite pendant laquelle ils seront immobiles avec un metabolism reduit. 650 $aIons 650 $aReproduction 650 $aSeminal plasma 650 $aSperm motility 650 $aSpermatozoa 650 $aMembrana 653 $aMotilidade espermatica 653 $aPlasma seminal 700 1 $aDACHEAUX, J. L. 773 $tComptes Rendus de l'Academie d'Agriculture de France$gv. 81, n. 5, p. 167-176, 1995.
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Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
28/09/2020 |
Data da última atualização: |
07/12/2020 |
Tipo da produção científica: |
Nota Técnica/Nota Científica |
Autoria: |
CARNEIRO, M. T.; PEREZ, D. V.; FEITOSA, R. C.; WASSERMAN, J. C. |
Afiliação: |
MARCOS TAVARES CARNEIRO, UFF/FIOCRUZ; DANIEL VIDAL PEREZ, CNPS; RENATO CASTIGLIA FEITOSA, FIOCRUZ; JULIO CESAR WASSERMAN, UFF. |
Título: |
Separation of Escherichia coli from natural samples for identification of sources and microcosm inoculation. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Brazilian Journal Of Microbiology, v. 51, p. 2015-2020, 2020. |
DOI: |
https://doi.org/10.1007/s42770-020-00374-2 |
Idioma: |
Inglês |
Conteúdo: |
Obtaining uncultured Escherichia coli from natural waters is an important step in the study of microbes in the environment, which are critical for bacterial decay and microbial source tracking. The quality of the samples used can influence the assays, because high contaminant concentrations, differing cell ages, and physiologic states can impair results. The proposed separation is based on a three-step filtration method applied to replicates of seven samples from a sewage plant affluent, collected in different periods. Aliquots of the leachate were inoculated into microcosms, aiming to observe the cultivability of the cells. The assay resulted in colimetry values ranging between 104 and 105 cells. In the leachate, averages of 1.05% of total coliforms and 1.10% of Escherichia coli were recovered from original samples. Although enduring unfavorable temperatures, salinities, and nutritional conditions, the inoculated microcosm populations grew approximately 310 times after 24 h. The final leachate contained cultivable cells in appropriate physiological states and quantities for inoculum in microcosm sets. The bacteria obtained from the leachate were also appropriate for surveys of microbial source tracking, because, in the developed procedure, organisms were separated from contaminants, while cell concentrations were sufficient for inocula. |
Thesagro: |
Águas Residuais; Bactéria; Escherichia Coli; Rastreamento. |
Thesaurus NAL: |
Strains; Wastewater. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218815/1/Separation-of-Escherichia-coli-from-natural-samples-2020.pdf
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Marc: |
LEADER 02106naa a2200241 a 4500 001 2125143 005 2020-12-07 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s42770-020-00374-2$2DOI 100 1 $aCARNEIRO, M. T. 245 $aSeparation of Escherichia coli from natural samples for identification of sources and microcosm inoculation.$h[electronic resource] 260 $c2020 520 $aObtaining uncultured Escherichia coli from natural waters is an important step in the study of microbes in the environment, which are critical for bacterial decay and microbial source tracking. The quality of the samples used can influence the assays, because high contaminant concentrations, differing cell ages, and physiologic states can impair results. The proposed separation is based on a three-step filtration method applied to replicates of seven samples from a sewage plant affluent, collected in different periods. Aliquots of the leachate were inoculated into microcosms, aiming to observe the cultivability of the cells. The assay resulted in colimetry values ranging between 104 and 105 cells. In the leachate, averages of 1.05% of total coliforms and 1.10% of Escherichia coli were recovered from original samples. Although enduring unfavorable temperatures, salinities, and nutritional conditions, the inoculated microcosm populations grew approximately 310 times after 24 h. The final leachate contained cultivable cells in appropriate physiological states and quantities for inoculum in microcosm sets. The bacteria obtained from the leachate were also appropriate for surveys of microbial source tracking, because, in the developed procedure, organisms were separated from contaminants, while cell concentrations were sufficient for inocula. 650 $aStrains 650 $aWastewater 650 $aÁguas Residuais 650 $aBactéria 650 $aEscherichia Coli 650 $aRastreamento 700 1 $aPEREZ, D. V. 700 1 $aFEITOSA, R. C. 700 1 $aWASSERMAN, J. C. 773 $tBrazilian Journal Of Microbiology$gv. 51, p. 2015-2020, 2020.
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