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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
30/01/2024 |
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Data da última atualização: |
30/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REIS, C. B. dos; OTENIO, M. H.; MELO JÚNIOR, A. M. de; DORNELAS, J. C. M.; CARMO, P. H. F. do; VIANA, R. de O.; RICOY, A. C. S.; ALVES, V. de S. |
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Afiliação: |
CAMILA BRANDA DOS REIS, UNIVERSIDADE FEDERAL DE MINAS GERAIS; MARCELO HENRIQUE OTENIO, CNPGL; ANDERSON MACHADO DE MELO JUNIOR, UNIVERSIDADE FEDERAL DE JUIZ DE FORA; JOAO CARLOS MAIA DORNELAS, UNIVERSIDADE FEDERAL DE MINAS GERAIS; PAULO HENRIQUE FONSECA DO CARMO, UNIVERSIDADE FEDERAL DE MINAS GERAIS; ROBERTA DE OLIVEIRA VIANA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; ANA CAROLINA SANTOS RICOY, UNIVERSIDADE FEDERAL DE MINAS GERAIS; VIVIANE DE SOUZA ALVES, UNIVERSIDADE FEDERAL DE MINAS GERAIS. |
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Título: |
Virulence profile of Candida spp. isolated from an anaerobic biodigester supplied with dairy cattle waste. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Microbial Pathogenesis, v. 187, 106516, 2024. |
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DOI: |
https://doi.org/10.1016/j.micpath.2023.106516 |
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Idioma: |
Inglês |
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Conteúdo: |
Anaerobic biodigesters play a crucial role in enhancing animal waste management. However, the presence of pathogens in the biodigestion process poses a significant concern. Candida spp., a widespread fungus known for its opportunistic nature and adaptability to diverse environmental conditions, including reciprocal transmission between humans and animals, is one such pathogen of concern. Therefore, it is imperative to assess the virulence profile of Candida spp. originating from anaerobic biodigestion processes. Here we demonstrate that strains isolated from the biodigestion process of dairy cattle waste exhibit noteworthy virulence mechanisms, surpassing the virulence of clinical control strains. After we identified strains from affluent, effluent, and biofertilizer, we observed that all analyzed isolates produced biofilm. Additionally, a substantial proportion of these isolates demonstrated phospholipase production, while only a few strains exhibited protease production. Furthermore, all strains exhibited resistance or dose-dependent responses to amphotericin B and itraconazole, with the majority displaying resistance to fluconazole. In the in vivo test, we observed a significant correlation (p < 0.05) between the LT50 and biofilm formation as well as hyphae/pseudohyphae production. Additionally, some isolates demonstrated a quicker nematode-killing capacity compared to clinical controls. Our findings underscore the considerable pathogenic potential of certain Candida species present in the dynamics of anaerobic biodigestion. Importantly, the anaerobic biodigester system did not eliminate Candida strains from dairy cattle waste, highlighting the need for caution in utilizing biodigester products. We advocate for further studies to explore the virulence of other microorganisms in various animal production contexts. Furthermore, our results emphasize the urgency of enhancing waste treatment methods to effectively eliminate pathogens and curb their potential dissemination. MenosAnaerobic biodigesters play a crucial role in enhancing animal waste management. However, the presence of pathogens in the biodigestion process poses a significant concern. Candida spp., a widespread fungus known for its opportunistic nature and adaptability to diverse environmental conditions, including reciprocal transmission between humans and animals, is one such pathogen of concern. Therefore, it is imperative to assess the virulence profile of Candida spp. originating from anaerobic biodigestion processes. Here we demonstrate that strains isolated from the biodigestion process of dairy cattle waste exhibit noteworthy virulence mechanisms, surpassing the virulence of clinical control strains. After we identified strains from affluent, effluent, and biofertilizer, we observed that all analyzed isolates produced biofilm. Additionally, a substantial proportion of these isolates demonstrated phospholipase production, while only a few strains exhibited protease production. Furthermore, all strains exhibited resistance or dose-dependent responses to amphotericin B and itraconazole, with the majority displaying resistance to fluconazole. In the in vivo test, we observed a significant correlation (p < 0.05) between the LT50 and biofilm formation as well as hyphae/pseudohyphae production. Additionally, some isolates demonstrated a quicker nematode-killing capacity compared to clinical controls. Our findings underscore the considerable pathogenic potential of certain Candida spec... Mostrar Tudo |
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Palavras-Chave: |
Antifúngico; Biodigestão; Levedura; Resíduo animal. |
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Thesagro: |
Biodigestor; Fungo; Gado Leiteiro; Resíduo. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02930naa a2200313 a 4500
001 2161445
005 2024-01-30
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.micpath.2023.106516$2DOI
100 1 $aREIS, C. B. dos
245 $aVirulence profile of Candida spp. isolated from an anaerobic biodigester supplied with dairy cattle waste.$h[electronic resource]
260 $c2024
520 $aAnaerobic biodigesters play a crucial role in enhancing animal waste management. However, the presence of pathogens in the biodigestion process poses a significant concern. Candida spp., a widespread fungus known for its opportunistic nature and adaptability to diverse environmental conditions, including reciprocal transmission between humans and animals, is one such pathogen of concern. Therefore, it is imperative to assess the virulence profile of Candida spp. originating from anaerobic biodigestion processes. Here we demonstrate that strains isolated from the biodigestion process of dairy cattle waste exhibit noteworthy virulence mechanisms, surpassing the virulence of clinical control strains. After we identified strains from affluent, effluent, and biofertilizer, we observed that all analyzed isolates produced biofilm. Additionally, a substantial proportion of these isolates demonstrated phospholipase production, while only a few strains exhibited protease production. Furthermore, all strains exhibited resistance or dose-dependent responses to amphotericin B and itraconazole, with the majority displaying resistance to fluconazole. In the in vivo test, we observed a significant correlation (p < 0.05) between the LT50 and biofilm formation as well as hyphae/pseudohyphae production. Additionally, some isolates demonstrated a quicker nematode-killing capacity compared to clinical controls. Our findings underscore the considerable pathogenic potential of certain Candida species present in the dynamics of anaerobic biodigestion. Importantly, the anaerobic biodigester system did not eliminate Candida strains from dairy cattle waste, highlighting the need for caution in utilizing biodigester products. We advocate for further studies to explore the virulence of other microorganisms in various animal production contexts. Furthermore, our results emphasize the urgency of enhancing waste treatment methods to effectively eliminate pathogens and curb their potential dissemination.
650 $aBiodigestor
650 $aFungo
650 $aGado Leiteiro
650 $aResíduo
653 $aAntifúngico
653 $aBiodigestão
653 $aLevedura
653 $aResíduo animal
700 1 $aOTENIO, M. H.
700 1 $aMELO JÚNIOR, A. M. de
700 1 $aDORNELAS, J. C. M.
700 1 $aCARMO, P. H. F. do
700 1 $aVIANA, R. de O.
700 1 $aRICOY, A. C. S.
700 1 $aALVES, V. de S.
773 $tMicrobial Pathogenesis$gv. 187, 106516, 2024.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
07/12/2023 |
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Data da última atualização: |
07/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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Autoria: |
SOUSA, A. R. de O.; COELHO FILHO, M. A.; SILVA, A. R. da; SANTOS, L. M. dos; SILVA, M. de C.; CRUZ, E. S. da; LEDO, C. A. da S.; SOARES FILHO, W. dos S.; COSTA, M. G. C.; MICHELIA, F.; GESTEIRA, A. da S. |
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Afiliação: |
ANDRESSA RODRIGUES DE OLIVEIRA SOUSA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; MAURICIO ANTONIO COELHO FILHO, CNPMF; ADIELLE RODRIGUES DA SILVA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; LIZIANE MARQUES DOS SANTOS, UNIVERSIDADE FEDERAL DO RECÔNCAVO DA BAHIA; MATHEUS DE CARVALHO SILVA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; ELAINE SILVA DA CRUZ, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; CARLOS ALBERTO DA SILVA LEDO, CNPMF; WALTER DOS SANTOS SOARES FILHO, CNPMF; MARCIO GILBERTO CARDOSO COSTA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; FABIENNE MICHELIA, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; ABELMON DA SILVA GESTEIRA, CNPMF. |
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Título: |
Water competition in the soil by rootstocks is used to assess drought tolerance in citrus. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
South African Journal of Botany, v. 164, p. 23-30, 2024. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Brazil is a country focused on agribusiness and is the world's largest producer of orange juice. However, citrus production in certain regions of the world is affected by irregular rainfall, which imposes drought stress conditions and causes behavioral changes in plant survival, growth, and productivity. In this context, the objective of this work was to assess a methodology for the selection of citrus rootstocks tolerant to drought when exposed to water deficit regimes. This work was conceived with prior knowledge of the responses to drought tolerance of three rootstocks: Rangpur Lime (RL), Sunki Tropical (ST) and Sunki Maravilha (SM). The study was carried out with Valencia Orange (VO) scion varieties grafted on these three rootstocks. Two plants were conditioned per pot, forcing competition for available water in the soil, and all combinations were exposed to three different water regimes (irrigated, water deficit, and rehydrated). The hydric and physiological relationships were then evaluated. The results showed that in addition to the availability of water, the association between genotypes in the same pot caused different physiological responses. In view of the contrasting strategies of survival/tolerance adopted by these genotypes in response to water deficit, the combination with RL allowed a higher tolerance, showing less water extraction, lower leaf water potential, and relative water content, as well as an increase in the photosynthetic parameters when combined mainly with SM. The methodology used is a promising and more effective tool for analyses of citrus plants under drought stress conditions. MenosAbstract: Brazil is a country focused on agribusiness and is the world's largest producer of orange juice. However, citrus production in certain regions of the world is affected by irregular rainfall, which imposes drought stress conditions and causes behavioral changes in plant survival, growth, and productivity. In this context, the objective of this work was to assess a methodology for the selection of citrus rootstocks tolerant to drought when exposed to water deficit regimes. This work was conceived with prior knowledge of the responses to drought tolerance of three rootstocks: Rangpur Lime (RL), Sunki Tropical (ST) and Sunki Maravilha (SM). The study was carried out with Valencia Orange (VO) scion varieties grafted on these three rootstocks. Two plants were conditioned per pot, forcing competition for available water in the soil, and all combinations were exposed to three different water regimes (irrigated, water deficit, and rehydrated). The hydric and physiological relationships were then evaluated. The results showed that in addition to the availability of water, the association between genotypes in the same pot caused different physiological responses. In view of the contrasting strategies of survival/tolerance adopted by these genotypes in response to water deficit, the combination with RL allowed a higher tolerance, showing less water extraction, lower leaf water potential, and relative water content, as well as an increase in the photosynthetic parameters when c... Mostrar Tudo |
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Thesagro: |
Seca. |
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Thesaurus NAL: |
Citrus; Drought tolerance; Rootstocks. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02483naa a2200289 a 4500
001 2159259
005 2023-12-07
008 2024 bl uuuu u00u1 u #d
100 1 $aSOUSA, A. R. de O.
245 $aWater competition in the soil by rootstocks is used to assess drought tolerance in citrus.$h[electronic resource]
260 $c2024
520 $aAbstract: Brazil is a country focused on agribusiness and is the world's largest producer of orange juice. However, citrus production in certain regions of the world is affected by irregular rainfall, which imposes drought stress conditions and causes behavioral changes in plant survival, growth, and productivity. In this context, the objective of this work was to assess a methodology for the selection of citrus rootstocks tolerant to drought when exposed to water deficit regimes. This work was conceived with prior knowledge of the responses to drought tolerance of three rootstocks: Rangpur Lime (RL), Sunki Tropical (ST) and Sunki Maravilha (SM). The study was carried out with Valencia Orange (VO) scion varieties grafted on these three rootstocks. Two plants were conditioned per pot, forcing competition for available water in the soil, and all combinations were exposed to three different water regimes (irrigated, water deficit, and rehydrated). The hydric and physiological relationships were then evaluated. The results showed that in addition to the availability of water, the association between genotypes in the same pot caused different physiological responses. In view of the contrasting strategies of survival/tolerance adopted by these genotypes in response to water deficit, the combination with RL allowed a higher tolerance, showing less water extraction, lower leaf water potential, and relative water content, as well as an increase in the photosynthetic parameters when combined mainly with SM. The methodology used is a promising and more effective tool for analyses of citrus plants under drought stress conditions.
650 $aCitrus
650 $aDrought tolerance
650 $aRootstocks
650 $aSeca
700 1 $aCOELHO FILHO, M. A.
700 1 $aSILVA, A. R. da
700 1 $aSANTOS, L. M. dos
700 1 $aSILVA, M. de C.
700 1 $aCRUZ, E. S. da
700 1 $aLEDO, C. A. da S.
700 1 $aSOARES FILHO, W. dos S.
700 1 $aCOSTA, M. G. C.
700 1 $aMICHELIA, F.
700 1 $aGESTEIRA, A. da S.
773 $tSouth African Journal of Botany$gv. 164, p. 23-30, 2024.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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