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| Registros recuperados: 30 | |
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| Chattopadhyay,Rabi Ranjan; Bhattacharyya,Subir Kumar; Medda,Chiranjib; Chanda,Sunanda; Bag,Anwesa. |
| A comparative in vitro antibacterial potential of extracts (aqueous and ethanol) of five important medicinal plants (Aegle marmelos, Azadirachta indica, Terminalia chebula, Mangifera indica and Ocimum sanctum) were investigated using microbial growth inhibition assays against the common human pathogenic bacteria (Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli) of clinical origin. All the plant materials showed varying degrees of strain specific inhibitory action and ethanol extract of the plant materials showed higher antibacterial activity than their aqueous counterparts. Besides, T. chebula and A. marmelos had the strongest antibacterial activity out of which, T. chebula possessed a wider spectrum and a superior antibacterial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pathogenic bacteria; Medicinal plants; Antibacterial potential; Comparative study. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500009 |
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| Lucas,Gilvaine Ciavareli; Alves,Eduardo; Pereira,Ricardo Borges; Perina,Fabiano José; Souza,Ricardo Magela de. |
| The objective of this work was to evaluate the effects of plant essential oils (EOs) on the growth of Xanthomonas vesicatoria, on bacterial morphology and ultrastructure, and on the severity of tomato bacterial spot. EOs from citronella, clove, cinnamon, lemongrass, eucalyptus, thyme, and tea tree were evaluated in vitro at concentrations of 0.1, 1.0, 10, and 100% in 1.0% powdered milk. The effect of EOs, at 0.1%, on the severity of tomato bacterial spot was evaluated in tomato seedlings under greenhouse conditions. The effects of citronella, lemongrass, clove, and tea tree EOs, at 0.1%, on X. vesicatoria cells were evaluated by transmission electron microscopy. All EOs showed direct toxic effect on the bacteria at a 10%-concentration in vitro. Under... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative control of plant disease; Cell ultrastructure; Pathogenic bacteria. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000300006 |
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| Chahad Bourouni, O.; Ktari, L.; Boudabbous, A.; El Bour, M.. |
| Une souche de Pseudomonas cepacia, designée K2, isolée à partir de la palourde Ruditapes decussatus a montré une activité antibactérienne significative contre un certain nombre de bactéries marines, y compris Aeromonas hydrophila, Aeromonas salmonicida et Vibrio anguillarum qui sont les bactéries pathogènes les plus fréquemment signalées dans l'environnement marin, responsables d’une forte mortalité des poissons et des crustacés. Cette souche K2 a montré une capacité d’inhibition très rapide dès le début de sa croissance (après 8h d'incubation). L'intensité de son activité est très importante et a tendance à augmenter avec le temps d'incubation. Les études préliminaires sur la nature de l'inhibition a indiqué qu'au moins l'une des substances... |
| Tipo: Journal Contribution |
Palavras-chave: Infectious diseases; Pathogenic bacteria; Antibacterials; Aquaculture. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4694 |
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| Dodin, A; Dosso, M; Guillou, M. |
| There exists no biochemical test allowing to define the pathogenicity of a bacterium, still less for a Vibrionaceae. Two essential characters are to be retained to hold responsible an isolated germ, for an illness: 1) the binding factor, the identification is difficult but a double diffusion of agar should simplify the method; 2) the search for the choleric toxin or a common part of the choleric toxin (toxin LT or ST of E. coli ). Here again, simplified techniques may be used. The acquirement of a plasmid responsible for the binding factor or for the toxin production of the non-pathogenic Vibrionaceae in the origin of certain epidemic diseases in France and in the world. Frequently, epidemics due to common germs (Aeromonas hydrophila of Africa) lead to... |
| Tipo: Text |
Palavras-chave: Aeromonas hydrophila; Vibrionaceae; Bacteria; Ecology; Microorganisms; Hosts; Bacterial diseases; Pathogenic bacteria. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/acte-999.pdf |
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| Costagliola, M.; Seigneur, G.N.; Jurquiza, V.. |
| As a result of an agreement signed by the Municipal Government of Baradero Buenos Aires Province, Argentina and the INIDEP, the sanitary quality of the Baradero River waters was studied and fish safety assessed. Results of five field surveys carried out between 1993 and 1997 are studied. Organochlorine and organophosphorate pesticide residues, as well as traces of heavy metals were analyzed in 49 fish specimens and aerobic heterotrophic bacteria (AHB), total coliform bacteria (TC) and fecal coliform bacteria (FC) were counted out in 7 sampling stations placed on the coast and the riverbed. Alpha Hexachlorohexane, gamma Hexachlorohexane, beta Hexachlorohexane, Aldrin, Heptachlor epoxide, pp'DDE and Dieldrin were detected in fish tissues. The values of AHB... |
| Tipo: Journal Contribution |
Palavras-chave: Freshwater pollution; Pollution surveys; Chemical analysis; Water analysis; Microbiological analysis; Pesticides; Public health; Pathogenic bacteria; Pesticides; Public health; Water analysis; Microbiological analysis; Pathogenic bacteria; Http://aims.fao.org/aos/agrovoc/c_5739; Http://aims.fao.org/aos/agrovoc/c_6349; Http://aims.fao.org/aos/agrovoc/c_16064; Http://aims.fao.org/aos/agrovoc/c_25302; Http://aims.fao.org/aos/agrovoc/c_34317. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/2417 |
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| Sabae, S.Z.; Rabeh, S.A.. |
| This study aims to the evaluation of the microbial quality of the River Nile water at Damietta Branch. Water samples were taken from the branch, during the period from autumn, 2005 till the summer of 2006. Some environmental parameters such as temperature, transparency, depth and pH were monitored. In addition, the bacteriological analyses involved total viable bacterial counts (TVBCs), total coliforms (TC) and estimation of faecal coliforms (FC), faecal streptococci and pathogenic bacteria. The results of physicochemical parameters showed that the temperature values varied from 17°C to 25°C and the transparency from 40cm to 220cm. Whereas, the depths varied from 3m to 25m and pH values from 7.24 to 8.44. The bacteriological analyses showed that TVBCs... |
| Tipo: Journal Contribution |
Palavras-chave: Field Study; Pollution; Pathogenic bacteria; Pollution; Pathogenic bacteria; Http://aims.fao.org/aos/agrovoc/c_6077; Http://aims.fao.org/aos/agrovoc/c_34317. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/1899 |
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| Pedersen, K.; Grisez, L.; van Houdt, R.; Tiainen, T.; Ollevier, F.P.; Larsen, J.L.. |
| The present paper summarizes the serotyping scheme of the fish pathogenic bacterium <i>Vibrio anguillarum</i> and defines seven additional O-serogroups. Strains, collected in our laboratories that were nontypable with antisera against the previously defined 16 O-serotypes, were used for generating new antisera and were characterized further by means of LPS profiles, Western blots, and serological reactions. On the basis of the results, it is suggested that the seven new O-serogroups are to be included in the existing serotyping system as serotypes O17-O<sub>2</sub>3. However, the existence of further <i>V. anguillarum</i> strains that were not typable with any of the 23 O-antisera suggested the existence of additional... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial diseases; Fish diseases; Pathogenic bacteria; Pathogens; Serological studies; Serotypes; Strains; Vibrio anguillarum. |
| Ano: 1999 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=9525 |
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| Spoto,Marta Helena Filet; Gallo,Cláudio Rosa; Alcarde,André Ricardo; Gurgel,Maria Sílvia do Amaral; Blumer,Lucimara; Walder,Júlio Marcos Melges; Domarco,Rachel Elisabeth. |
| This work evaluated the effect of gamma radiation on reducting the population of Staphylococcus aureus, Escherichia coli and Salmonella typhimurium in ground chicken breast stored under refrigeration. The experiment included a control and 4 doses of gamma radiation (2.0, 4.0, 6.0 and 8.0 kGy) along with 5 periods of storage under refrigeration (1, 7, 14, 21 and 28 days). Samples of ground chicken breast were inoculated with Staphylococcus aureus (ATCC 14458), Escherichia coli (ATCC 11105) and Salmonella typhimurium (ATCC 0626), irradiated at temperatures between 4 and 8°C and stored under refrigeration (5°C) for 28 days. The increased radiation dose and period of storage under refrigeration caused a reduction of Staphylococcus aureus, Escherichia coli and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gamma irradiation; Pathogenic bacteria; Chicken meat; Refrigeration. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000300003 |
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| Nicolas, Jean-louis; Ansquer, Dominique; Cochard, Jean-claude. |
| A bacterial strain belonging to the genus Vibrio was involved in a recurrent outbreak of disease in Manila clam Tapes philippinarum larvae at a commercial hatchery, This vibrio, named VTP for convenience, was not related to the known pathogenic vibrios and possessed unusual characteristics, Only Manila clam larvae and postlarvae were affected by the disease, Oyster and scallop larvae were not affected by vrp, Survival of vrp was found to be of short duration in seawater but even a very small number of cells (1 cell per 5 ml) could initiate the disease, VTP did not grow on thiosulfate-citratebile-sucrose agar and was resistant to chloramphenicol. An epidemiological study utilizing bioassays revealed the presence of VTP in adult bivalves and in the... |
| Tipo: Text |
Palavras-chave: Bacterial diseases; Clam culture; Larvae; Pathogenic bacteria; Tapes philippinarum; Vibrio. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/00037/14872/12198.pdf |
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| Registros recuperados: 30 | |
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