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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
14/10/2015 |
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Data da última atualização: |
03/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BORTOLOTTO, R. P.; AMADO, T. J. C.; NORA, D. D.; KELLER, C.; ROBERTI, D.; FIORIN, J. E.; REICHARDT, K.; ZAMBERLAN, J. F.; PASINI, M. P. B.; NICOLOSO, R. da S. |
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Afiliação: |
RAFAEL PIVOTTO BORTOLOTTO, UFSM; TELMO JORGE CARNEIRO AMADO, UFSM; DOUGLAS DALLA NORA, UFSM; CRISTIANO KELLER, UFSM; DEBORA ROBERTI, UFSM; JACKSON ERNANI FIORIN, UNICRUZ; KLAUS REICHARDT, USP; JOãO FERNANDO ZAMBERLAN, UNICRUZ; MAURICIO PAULO BATISTELLA PASIN, UFSM; RODRIGO DA SILVEIRA NICOLOSO, CNPSA. |
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Título: |
Soil carbon dioxide flux in a no-tillage winter system. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 10, n. 6, p. 450-457, 2015. |
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DOI: |
10.5897/AJAR2014.9399 |
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Idioma: |
Inglês |
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Conteúdo: |
Soil carbon dioxide flux is a complex process which depends on variations of different factors related to climate and soil. The objective of this study was identifying the abiotic factors that most contributed to this flux during different phonologic stages of the sequence black oat-vetch, cultivated under the no tillage system, in the winter, and find out the most important factors. Soil carbon fluxes were measured every 15 min with a LI-COR ?long-term? (stationary) chamber, installed on the no tillage site of the rotation: soybean/black oat/soybean/black oat + vetch/corn/turnip/wheat. The factor that mostly influenced soil carbon fluxes was soil temperature, explaining 57% of the flux variation during the cycles of the crops and 80% from tillering to the begin of the elongation stage of the black oat. The phonologic stages of the black oat in the consortium black oat + vetch that mostly contributed to the carbon soil flux were from the begin of the tillering to the begin of the elongation, and from the elongation to massive grain of the black oat. |
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Thesagro: |
Avena Strigosa; Dióxido de carbono; Efeito estufa; Plantio direto; Solo; Vicia Sativa. |
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Thesaurus Nal: |
Greenhouse effect; No-tillage; Soil; Soil conservation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02056naa a2200361 a 4500
001 2026347
005 2016-02-03
008 2015 bl uuuu u00u1 u #d
024 7 $a10.5897/AJAR2014.9399$2DOI
100 1 $aBORTOLOTTO, R. P.
245 $aSoil carbon dioxide flux in a no-tillage winter system.$h[electronic resource]
260 $c2015
520 $aSoil carbon dioxide flux is a complex process which depends on variations of different factors related to climate and soil. The objective of this study was identifying the abiotic factors that most contributed to this flux during different phonologic stages of the sequence black oat-vetch, cultivated under the no tillage system, in the winter, and find out the most important factors. Soil carbon fluxes were measured every 15 min with a LI-COR ?long-term? (stationary) chamber, installed on the no tillage site of the rotation: soybean/black oat/soybean/black oat + vetch/corn/turnip/wheat. The factor that mostly influenced soil carbon fluxes was soil temperature, explaining 57% of the flux variation during the cycles of the crops and 80% from tillering to the begin of the elongation stage of the black oat. The phonologic stages of the black oat in the consortium black oat + vetch that mostly contributed to the carbon soil flux were from the begin of the tillering to the begin of the elongation, and from the elongation to massive grain of the black oat.
650 $aGreenhouse effect
650 $aNo-tillage
650 $aSoil
650 $aSoil conservation
650 $aAvena Strigosa
650 $aDióxido de carbono
650 $aEfeito estufa
650 $aPlantio direto
650 $aSolo
650 $aVicia Sativa
700 1 $aAMADO, T. J. C.
700 1 $aNORA, D. D.
700 1 $aKELLER, C.
700 1 $aROBERTI, D.
700 1 $aFIORIN, J. E.
700 1 $aREICHARDT, K.
700 1 $aZAMBERLAN, J. F.
700 1 $aPASINI, M. P. B.
700 1 $aNICOLOSO, R. da S.
773 $tAfrican Journal of Agricultural Research$gv. 10, n. 6, p. 450-457, 2015.
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Registro original: |
Embrapa Suínos e Aves (CNPSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
06/07/2017 |
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Data da última atualização: |
21/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MARTINS, K. B.; FACCIOLI, P. Y.; BONESSO, M. F.; FERNANDES, S.; OLIVEIRA, A. A.; DANTAS, A.; ZAFALON, L. F.; CUNHA, M. de L. R. de S. da. |
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Afiliação: |
Katheryne Benini Martins, UNESP; Patricia Yoshida Faccioli, UNESP; Mariana Fávero Bonesso, UNESP; Simone Fernandes, UNESP; Aline A. Oliveira, UNESP; Ariane Dantas, UNESP; LUIZ FRANCISCO ZAFALON, CPPSE; Maria de Lourdes Ribeiro de Souza da Cunha, UNESP. |
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Título: |
Characteristics of resistance and virulence factors in different species of coagulase-negative staphylococci isolated from milk of healthy sheep and animals with subclinical mastitis. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Dairy Science, v. 100, n. 3, p. 2184-2195, 2017. |
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ISSN: |
0022-0302 |
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DOI: |
https://doi.org/10.3168/jds.2016-11583 |
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Idioma: |
Inglês |
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Conteúdo: |
Coagulase-negative staphylococci (CNS) are among the main responsible agents for mastitis in sheep. Cure rates can be reduced due to several causes, such as those related to virulence factors presented by microorganisms. This study aims at characterizing the virulence and resistance factors to antimicrobial agents in different CNS species isolated from sheep milk. After collecting milk samples, the samples were analyzed and the CNS species were identified. After identification, the susceptibility-sensitivity profile was examined using the disk diffusion technique for 10 antimicrobial agents. The DNA was extracted to detect the presence of the mecA gene, biofilm (icaADBC, bap, and bhp) and toxin genes (sea, seb, sec, sed, tst, and luk-PV) by PCR. Samples carrying toxin genes had their expression assessed using the reverse-transcription PCR technique. The biofilm production was assessed using the adherence method on a polystyrene plate. One hundred twelve CNS samples were isolated, 53 (47.3%) from animals with subclinical mastitis and 59 (52.7%) from healthy animals. Drugs tested have shown to be efficient for most CNS samples. The largest resistance percentage of CNS was found for the penicillin (17.0%) and tetracycline (10.7%) and 4 samples carried the mecA gene. As for the biofilm genes, the icaADBC operon was found in 10 (8.9%) samples, the bap gene was found in 16 (14.3%), and the bhp gene was found in 3 (2.7%). In addition, 69 (61.6%) samples produced biofilm. The survey of toxin genes has shown that 70 (62.5%) samples showed some toxin-encoding gene. However, none of the samples has expressed any of the genes from those toxins studied. MenosCoagulase-negative staphylococci (CNS) are among the main responsible agents for mastitis in sheep. Cure rates can be reduced due to several causes, such as those related to virulence factors presented by microorganisms. This study aims at characterizing the virulence and resistance factors to antimicrobial agents in different CNS species isolated from sheep milk. After collecting milk samples, the samples were analyzed and the CNS species were identified. After identification, the susceptibility-sensitivity profile was examined using the disk diffusion technique for 10 antimicrobial agents. The DNA was extracted to detect the presence of the mecA gene, biofilm (icaADBC, bap, and bhp) and toxin genes (sea, seb, sec, sed, tst, and luk-PV) by PCR. Samples carrying toxin genes had their expression assessed using the reverse-transcription PCR technique. The biofilm production was assessed using the adherence method on a polystyrene plate. One hundred twelve CNS samples were isolated, 53 (47.3%) from animals with subclinical mastitis and 59 (52.7%) from healthy animals. Drugs tested have shown to be efficient for most CNS samples. The largest resistance percentage of CNS was found for the penicillin (17.0%) and tetracycline (10.7%) and 4 samples carried the mecA gene. As for the biofilm genes, the icaADBC operon was found in 10 (8.9%) samples, the bap gene was found in 16 (14.3%), and the bhp gene was found in 3 (2.7%). In addition, 69 (61.6%) samples produced biofilm. The survey... Mostrar Tudo |
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Palavras-Chave: |
Coagulase-negative staphylococci; Resistance; Sheep mastitis. |
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Thesaurus NAL: |
Biofilm; Disease resistance; Mastitis; Sheep diseases; Toxins. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02716naa a2200325 a 4500
001 2072041
005 2017-11-21
008 2017 bl uuuu u00u1 u #d
022 $a0022-0302
024 7 $ahttps://doi.org/10.3168/jds.2016-11583$2DOI
100 1 $aMARTINS, K. B.
245 $aCharacteristics of resistance and virulence factors in different species of coagulase-negative staphylococci isolated from milk of healthy sheep and animals with subclinical mastitis.$h[electronic resource]
260 $c2017
520 $aCoagulase-negative staphylococci (CNS) are among the main responsible agents for mastitis in sheep. Cure rates can be reduced due to several causes, such as those related to virulence factors presented by microorganisms. This study aims at characterizing the virulence and resistance factors to antimicrobial agents in different CNS species isolated from sheep milk. After collecting milk samples, the samples were analyzed and the CNS species were identified. After identification, the susceptibility-sensitivity profile was examined using the disk diffusion technique for 10 antimicrobial agents. The DNA was extracted to detect the presence of the mecA gene, biofilm (icaADBC, bap, and bhp) and toxin genes (sea, seb, sec, sed, tst, and luk-PV) by PCR. Samples carrying toxin genes had their expression assessed using the reverse-transcription PCR technique. The biofilm production was assessed using the adherence method on a polystyrene plate. One hundred twelve CNS samples were isolated, 53 (47.3%) from animals with subclinical mastitis and 59 (52.7%) from healthy animals. Drugs tested have shown to be efficient for most CNS samples. The largest resistance percentage of CNS was found for the penicillin (17.0%) and tetracycline (10.7%) and 4 samples carried the mecA gene. As for the biofilm genes, the icaADBC operon was found in 10 (8.9%) samples, the bap gene was found in 16 (14.3%), and the bhp gene was found in 3 (2.7%). In addition, 69 (61.6%) samples produced biofilm. The survey of toxin genes has shown that 70 (62.5%) samples showed some toxin-encoding gene. However, none of the samples has expressed any of the genes from those toxins studied.
650 $aBiofilm
650 $aDisease resistance
650 $aMastitis
650 $aSheep diseases
650 $aToxins
653 $aCoagulase-negative staphylococci
653 $aResistance
653 $aSheep mastitis
700 1 $aFACCIOLI, P. Y.
700 1 $aBONESSO, M. F.
700 1 $aFERNANDES, S.
700 1 $aOLIVEIRA, A. A.
700 1 $aDANTAS, A.
700 1 $aZAFALON, L. F.
700 1 $aCUNHA, M. de L. R. de S. da
773 $tJournal of Dairy Science$gv. 100, n. 3, p. 2184-2195, 2017.
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