scholarly journals Parasitic growth of Pseudomonas aeruginosa in co-culture with the chitinolytic bacterium Aeromonas hydrophila

2010 ◽  
Vol 12 (6) ◽  
pp. 1787-1802 ◽  
Author(s):  
Nina Jagmann ◽  
Hans-Philipp Brachvogel ◽  
Bodo Philipp
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Aeromonas Hydrophila

scholarly journals Indicadores bacterianos no habituales de la calidad de aguas naturales

2013 ◽  
Vol 5 (2) ◽  
pp. 283-287
Author(s):  
Sara Ávila de Navia ◽  
Sandra Mónica Estupiñán Torres ◽  
Flor Helena Chavarro ◽  
Diana Alejandra Acero
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Aeromonas Hydrophila ◽  
Pseudomonas Spp

Aeromonas spp. y Pseudomonas spp. están presentes en el agua y han sido propuestos como indicadores de su estado trófico, son un riesgo para la salud pública debido a que son patógenos oportunistas. La normativa colombiana no contempla a estos géneros microbianos como indicadores de la calidad microbiológica del agua. Este estudio busca enriquecer la información que sustente la inclusión de Aeromonas spp.y Pseudomonas spp, como indicadores en las Normas de la calidad microbiológica del agua en Colombia. Se evaluaron once puntos de las fuentes de agua del parque Natural Chicaque en época de lluvias (Noviembre del 2010) y época seca (Agosto del 2011). Se utilizó la técnica de filtración por membrana, y la identificación se realizó a través de pruebas bioquímicas rápidas Crystal. Se identificaron en las dos temporadas Pseudomonas spp. y Aeromonas spp, en particular Pseudomonas aeruginosa y Aeromonas hydrophila y otros Bacilos Gram Negativos. En época de lluvias se encontró un menor recuento de Pseudomonas spp., mientras que el recuento de Aeromonas spp. fue mayor en ésta misma época. Se sugiere continuar realizando más estudios que sustenten su inclusión como indicadores en las normas de la calidad microbiológica de agua en Colombia.PALABRAS CLAVEPseudomonas, Aeromonas, calidad del agua, microorganismos, filtración por membrana, calidad microbiológica

scholarly journals Unusual Multiple Brain Abscesses Caused by Aeromonas hydrophila in a Preterm Neonate: Case Report

2018 ◽  
Vol 08 (01) ◽  
pp. e55-e57
Author(s):  
Elham Bukhari
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Brain Abscess ◽  
Aeromonas Hydrophila ◽  
Preterm Neonate ◽  
Preterm Newborn ◽  
Neonatal Brain ◽  
Gram Negative ◽  
Facultative Anaerobic ◽  
Brain Abscesses ◽  
Citrobacter Diversus

AbstractNeonatal brain abscess is rare. The most common etiologic microorganisms that are responsible for this condition are Citrobacter diversus, Proteus mirabilis, Pseudomonas aeruginosa, Serratia marcescens, and other Enterobacteriaceae. Aeromonas hydrophila is a halophilic, gram-negative, facultative anaerobic bacillus.It has been reported to cause intestinal and extraintestinal infections and has rarely been reported to cause meningitis at neonatal age. A. hydrophila has not been reported previously to cause brain abscess in neonates. In this report, we describe a case of severe multiple brain abscesses and ventriculitis as complications in meningitis caused by A. hydrophila in a preterm newborn.

The Antimicrobial Activity of Extracts of the Lichen Cetraria aculeata and Its Protolichesterinic Acid Constituent

2003 ◽  
Vol 58 (11-12) ◽  
pp. 850-854 ◽  
Author(s):  
Ayşen Özdemir Türk ◽  
Meral Yılmaz ◽  
Merih Kıvanç ◽  
Hayrettin Türk
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Listeria Monocytogenes ◽  
Bacillus Cereus ◽  
Aeromonas Hydrophila ◽  
Proteus Vulgaris ◽  
Ethanol Extracts

Abstract In this study, the antimicrobial activity of the acetone, diethyl ether and ethanol extracts of the lichen Cetraria aculeata has been investigated. The extracts were tested against twelve bacteria and eight fungi and found active against Escherichia coli, Staphylococcus aureus, Aeromonas hydrophila, Proteus vulgaris, Streptococcus faecalis, Bacillus cereus, Bacillus subtilis, Pseudomonas aeruginosa, Listeria monocytogenes. No antimicrobial activity against the fungi was detected. It was determined that only one substance in the extracts has antimicrobial activity and it was characterized as protolichesterinic acid. The MICs of the extracts and protolichesterinic acid were also determined.

scholarly journals Distribution de Pseudomonas aeruginosa et Aeromonas hydrophila dans les eaux de la nappe phréatique superficielle en zone équatoriale au Cameroun et relations avec quelques paramètres chimiques du milieu.

2005 ◽  
Vol 14 (1) ◽  
pp. 35-53 ◽  
Author(s):  
M. Nola ◽  
T. Njine ◽  
V. F. Sikati ◽  
E. Djuikom
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Aeromonas Hydrophila

Une étude microbiologique et chimique a été menée pendant un an sur les eaux de sources et de puits de Yaoundé (Cameroun). Les analyses microbiologiques ont été faites suivant la technique des membranes filtrantes, et les analyses chimiques, suivant les techniques analytiques usuelles. Les abondances maximales mensuelles de Pseudomonas aeruginosa et de Aeromonas hydrophila varient respectivement de 1 à 22x103 UFC.100 ml-1 d'eau, et de 1 à 7,8x103 UFC.100 ml-1. Ces abondances bactériennes subissent d'amples fluctuations spatio-temporelles. Les eaux de sources et de puits analysées sont faiblement bicarbonatées, douces et présentent une minéralisation faible à moyenne. Le pH varie de 3 à 5 et les concentrations en CO2 dissous, de 300 à 532 mg.l-1. Un bon nombre des caractéristiques chimiques de ces eaux est relativement stable au cours du temps, en dépit des fluctuations spatiales apparentes. Le degré de corrélation entre les paramètres chimiques et la dynamique d'abondance des bactéries isolées, est hétérogène. Cela est nettement plus marqué dans les eaux de puits, en raison des conséquences de l'exploitation humaine de ces eaux, à l'origine d'apports allochtones divers.

scholarly journals Alternations in Enzyme Activities of Clarias gariepinus Infected with Aeromonas hydrophila and Pseudomonas aeruginosa

2019 ◽  
pp. 1-9
Author(s):  
I. O. K. Ukwe ◽  
T. T. Oladapo-Akinfolarin
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Lactate Dehydrogenase ◽  
Aeromonas Hydrophila ◽  
Enzyme Activities ◽  
Aspartate Aminotransferase ◽  
Biochemical Analysis ◽  
Clarias Gariepinus ◽  
Infected Fish ◽  
Blood Samples ◽  
Constant Increase

Clarias gariepinus were infected with Aeromonas hydrophila and Pseudomonas aeruginosa, and blood samples were collected weekly for biochemical analysis to analyse their enzyme activities and pathogenesis for four weeks. The enzymes includes: aspartate aminotransferase (AST), alkaline phosphastase (ALP), acid phosphastase (ACP) and lactate – dehydrogenase (LDH). The fish were distributed in three different groups in triplicates as: control (C1 C2 C3), A. hydrophila (A1, A2, A3) and P. aeruginosa (P1, P2, P3). After two weeks of acclimatization, A1 – A3 were injected with 1.5 ml of 106 cfu/ml of A. hydrophila, P1-P3 were injected with 1.5 ml of 106 cfu/ml of P. aeruginosa, while C1-C3 were pathogen free. At the end of the experiment, it was observed that there was a constant increase, in the enzyme activities of the infected fish, indicating increase in virulence with respect to weeks of exposure but P. aeruginosa had higher pathogenicity compared to A. hydrophila.

Pseudomonas aeruginosa FARP72 Offers Protection Against Aeromonas hydrophila Infection in Labeo rohita

2018 ◽  
Vol 11 (3) ◽  
pp. 973-980 ◽  
Author(s):  
Farhana Hoque ◽  
T. Jawahar Abraham ◽  
T. S. Nagesh ◽  
Dibyendu Kamilya
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Aeromonas Hydrophila ◽  
Labeo Rohita

Survival and recovery of Aeromonas hydrophila in water: development of methodology for testing bottled water in Canada

1994 ◽  
Vol 40 (2) ◽  
pp. 145-148 ◽  
Author(s):  
Donald W. Warburton ◽  
John K. McCormick ◽  
Bruce Bowen
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Aeromonas Hydrophila ◽  
Bottled Water ◽  
The Other ◽  
Water Development ◽  
Membrane Filters ◽  
Colony Forming Units ◽  
Selective Plating

Proposed changes to the Regulations for bottled water in the Food and Drugs Act of Canada include criteria for Aeromonas hydrophila (0 colony-forming units/100 mL water). The development of the methodology used to support these proposed Regulations and the survival of A. hydrophila in inoculated water are described. The methodology used in the isolation of A. hydrophila includes the use of hydrophobic grid membrane filters (HGMF), a resuscitation step on tryptic soy agar, and selective plating on membrane–Aeromonas–trehalose agar and Aeromonas medium. Aeromonas hydrophila proliferated and survived in inoculated water for up to 60 days or longer depending on the other contaminating bacteria. The presence of Pseudomonas aeruginosa enhanced the survival of A. hydrophila and enabled this bacteria to survive for more than 60 days.Key words: Aeromonas hydrophila, bottled water, methodology, survival, recovery.

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