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| Registros recuperados: 341 | |
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| Perestrelo,M. F.; Norberg,A. N.; Guerra-Sanches,F.; Torres,A. C.; Pile,E.. |
| Water used in hydrotherapy units of Nova Iguaçu and Nilópolis, Rio de Janeiro State, Brazil, was microbiologically analyzed. Thirty samples (5ml each) were weekly collected from September 2001 to June 2002 before the beginning and after the end of activities in the units. For analysis, routine techniques were used, which showed the presence of Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Klebsiella spp, Candida spp, Penicillium spp, Epidermophyton spp, Aspergillus fumigatus, Aspergillus niger, Aspergillus spp, Cephalosporium spp, Cladosporium spp, Trichophyton rubrum, and Trichophyton spp. Results indicated a need for improving hygienic conditions, suggesting that water might be a contamination source in the evaluated units. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hydrotherapy; Water; Microorganisms; Bacteria; Fungi. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992006000300006 |
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| Becker-Ritt,Arlete Beatriz; Portugal,Camila Saretta; Carlini,Célia Regina. |
| Abstract Urease from Canavalia ensiformis seeds was the first enzyme ever to be crystallized, in 1926. These proteins, found in plants, bacteria and fungi, present different biological properties including catalytic hydrolysis of urea, and also enzyme-independent activities, such as induction of exocytosis, pro-inflammatory effects, neurotoxicity, antifungal and insecticidal properties. Urease is toxic to insects and fungi per se but part of this toxicity relies on an internal peptide (~11 kDa), which is released upon digestion of the protein by insect enzymes. A recombinant form of this peptide, called jaburetox (JBTX), was constructed using jburell gene as a template. The peptide exhibits liposome disruption properties, and insecticidal and fungicidal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Peptide; Bacteria; Membranes; Nanoparticles. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992017000100211 |
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| Strausbaugh, C.A.; Eujayl, Imad A.; Foote, P.. |
| The Rhizoctonia-bacterial root rot complex continues to be a concerning problem in sugar beet production areas. To investigate resistance to this complex in 26 commercial sugar beet cultivars, field studies and greenhouse studies with mature roots from the field were conducted with Rhizoctonia solani AG-2-2 IIIB strains and Leuconostoc mesenteroides. Based on means for the 26 cultivars in the 2010 and 2011 field studies, fungal rot ranged from 0 to 8%, bacterial rot ranged from 0 to 37%, total rot ranged from 0 to 44%, and surface rot ranged from 0 to 52%. All four rot variables resulted in significant (P < 0.0001) cultivar differences. Based on regression analysis, strong positive relationships (r2 from 0.6628 to 0.9320; P < 0.0001) were present... |
| Tipo: Article |
Palavras-chave: Root rots; Sugarbeet; Bacteria. |
| Ano: 2013 |
URL: http://eprints.nwisrl.ars.usda.gov/1475/1/1440..pdf |
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| Strausbaugh, C.A.; Eujayl, Imad A.. |
| The Rhizoctonia-bacterial root rot complex in sugarbeet caused by Rhizoctonia solani and Leuconostoc mesenteroides can cause significant yield losses. To investigate the impact of different tillage systems on this complex, field studies were conducted from 2009 to 2011. Split blocks with conventional and strip tillage as main plot treatments were arranged in a randomized complete block design with four replications. Within main plots, there were seven treatments (non-inoculated check and six R. solani AG-2-2 IIIB strains). Regardless of tillage, the roots responded in a similar manner for fungal rot (conventional 8% versus strip 7%), bacterial rot (26% versus 34%), total rot (33% versus 41%), neighboring roots infected (1.7 roots versus 1.5 roots),... |
| Tipo: Article |
Palavras-chave: Root rots; Sugarbeet; Bacteria. |
| Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1472/1/1437.pdf |
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| Strausbaugh, C.A.; Rearick, E.; Eujayl, Imad A.; Foote, P.. |
| The Rhizoctonia-bacterial root rot complex can lead to yield loss in the field but may also lead to problems with sucrose loss in storage. Thus, studies were conducted to investigate if placing sugarbeet roots suffering from root rot together with healthy roots could compromise the ability of the healthy roots to retain sucrose. Over a three year period, root samples from three commercial cultivars were compared in storage as a healthy (eight healthy roots) or rotted (eight healthy roots + one rotted root) treatment inside an outdoor storage pile. The experiment was arranged as a split block (healthy in one half of block and rotted in the other) with the whole blocks arranged in a randomized complete block design with four replications. Samples were... |
| Tipo: Article |
Palavras-chave: Root rots; Sugarbeet; Bacteria. |
| Ano: 2011 |
URL: http://eprints.nwisrl.ars.usda.gov/1484/1/1406.pdf |
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| Dolinski,Claudia; Lacey,Lawrence A.. |
| A multitude of insects and mites attack fruit crops throughout the tropics. The traditional method for controlling most of these pests is the application of chemical pesticides. Growing concern on the negative environmental effects has encouraged the development of alternatives. Inundatively and inoculatively applied microbial control agents (virus, bacteria, fungi, and entomopathogenic nematodes) have been developed as alternative control methods of a wide variety of arthropods including tropical fruit pests. The majority of the research and applications in tropical fruit agroecosystems has been conducted in citrus, banana, coconut, and mango. Successful microbial control initiatives of citrus pests and mites have been reported. Microbial control of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteria; Virus; Fungus; Nematode. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000200001 |
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| Kato, Kentaro; Ishiwa, Akiko; 加藤, 健太郎. |
| Enteric pathogens cause considerable public health concerns worldwide including tropical regions. Here, we review the roles of carbohydrates in the infection strategies of various enteric pathogens including viruses, bacteria and protozoa, which infect the epithelial lining of the human and animal intestine. At host cell entry, enteric viruses, including norovirus, recognize mainly histo-blood group antigens. At the initial step of bacterial infections, carbohydrates also function as receptors for attachment. Here, we describe the function of carbohydrates in infection by Salmonella enterica and several bacterial species that produce a variety of fimbrial adhesions. During invasion by enteropathogenic protozoa, apicomplexan parasites utilize sialic acids... |
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Palavras-chave: Bacteria; Carbohydrate; Enteric pathogen; Infection; Protozoa; Virus. |
| Ano: 2015 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4299 |
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| Zheng, Zhou; Jin, Qing; Miao, Jinlai; Liu, Fangming. |
| Two hydrocarbon degrading bacteria NJ276 and NJ341 were screened from 385 Antarctic marine bacteria and their degrading characteristics were studied. Diesel oil as sole carbon source was used in this study. The results showed that the oil degradation rates of Antarctic psychrophile bacteria NJ276 and NJ341 were 23.47 % and 32.15 %, respectively, after 20 days culturation at 5 °C, and the rates were 43.95 % and 62.47 % respectively after 20 days culturation at 15 °C. The oil degradation abilities were enhanced remarkably with the increasing culture temperature. GC - MSs indicated the residual oil contained C15 - C21 7 alkyls after degradation by NJ276, and C16, C17 and C18 3 alkyls after degradation by NJ341. The 16S rDNA gene sequences homology and... |
| Tipo: Journal Contribution |
Palavras-chave: Hydrocarbons; Degradation; Bacteria. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/5879 |
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| Chérif, W.; El Bour, M.; Daly Yahia-Kefi, O.. |
| Les bio-salissures marines intéressent toute structure immergée en mer. Les dommages engendrés par ce phénomène sont économiquement importants. Les peintures utilisées pour prévenir du biofouling, utilisent des biocides organostaniques qui se sont avérés très toxiques et posent un problème environnemental important. Le présent travail s'intègre dans le cadre de la valorisation des macroalgues des côtes tunisiennes par la recherche de molécules naturelles antifouling pouvant se substituer aux substances déjà utilisées. Dans cette étude, nous avons analysé le potentiel anti-microfouling d’extraits organiques de 10 espèces d’algues vertes: Ulva linza, Ulva rigida, Chaetomorpha linum, Cladophora laetivirens, Codium bursa, Codium fragile, Caulerpa prolifera,... |
| Tipo: Journal Contribution |
Palavras-chave: Algae; Seaweeds; Green algae; Bacteria. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4741 |
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| Ben Ali, A. I.; Ktari, L.; Boudabbous, A.; El Bour, M.. |
| L’algue brune Padina pavonica a été récoltée durant une période d’une année (Juillet 2006 à Juin 2007), dans la côte nord de la Tunisie (Cap Zebib) en vue d'évaluer l'activité antibactérienne d’extraits bruts de l’algue et leur variabilité saisonnière. Les extraits d’algue ont été préparés en utilisant le Dichlorométhane et le Dichlorométhane/Méthanol et testés périodiquement (tous les mois) sur une gamme de bactéries pathogènes et des bactéries associées isolées de l’algue. Une variation significative de l'activité antibactérienne liée au solvant d’extraction utilisé a été notée. Ainsi, les extraits au Dichloromethane/Méthanol sont plus actifs. Aussi nous avons noté la présence d’une variabilité saisonnière de l'activité antibactérienne. Ce sont les... |
| Tipo: Journal Contribution |
Palavras-chave: Bacteria; Pathogenic bacteria; Seasonal variations; Antibacterials; Algae. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4699 |
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| Suárez, J.A.; García, A.; Newmark, F.; Bador, R.. |
| In order to identify initial factors that can affect shrimp postlarvae survival during larval rearing, three larval rearing facilities from the Caribbean coast of Colombia were samplesd for 71 nauplii batches during 10 months of 1996. For each batch, cualitative variables (origin, transportation mode, presence of bacteria in transport water) and quantitative variables (transportation time and density, physicochemical parameters of the water, proportion of each nauplii stage and of deformed nauplii) were monitored. Water quality and density (nauplii/l) variables were monitored during the whole process of nauplii packing, transport, reception, acclimatization and stocking. To evaluate the relationship between qualitative variables and larval rearing... |
| Tipo: Journal Contribution |
Palavras-chave: Nauplii; Quality; Bacteria; Transport; Transport; Quality; Bacteria; Http://aims.fao.org/aos/agrovoc/c_7874; Http://aims.fao.org/aos/agrovoc/c_6400; Http://aims.fao.org/aos/agrovoc/c_765. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/3112 |
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| Orozco, M.V.; Loza, S.; Lugioyo, M.. |
| Se evaluó el patrón de distribución espacial así como la contribución de las fracciones del plancton a la biomasa planctónica menor de 200 μm en la región NW de las aguas oceánicas adyacentes a Cuba en muestreos realizados en época de invierno (febrero de 1997 y marzo 1999). Los valores de la biomasa bacteriana variaron entre 1.6 y 11.4 mgC m-3, del nanoplancton entre 5.2 y 20.8 mgC m-3 (Xmedia = 11.4 ± 5.4 mgC m-3) y la del microzooplancton entre 4.2 y 15.5 mgC m-3 (Xmedia = 7.9 ± 3.2 mgC m-3). El microfitoplancton presentó valores de biomasa que variaron entre 1.95 y 15.7 mgC m-3 (Xmedia = 8.8 ± 3.7 mgC m-3). Los mayores valores de biomasa de todas las fracciones estudiadas se encontraron en las aguas oceánicas adyacentes a la zona entre las bahías de... |
| Tipo: Journal Contribution |
Palavras-chave: 1461; Biomass; Bacteria; Nanoplankton; Oceanic waters; Zooplankton; Phytoplankton; Biomass; Bacteria. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/4119 |
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| Registros recuperados: 341 | |
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