Etude expérimentale de l'effet de Synechocystis sp. (picocyanobactérie) sur le comportement de certaines bactéries d'intérêt sanitaire
@article{Oufdou1998EtudeED, title={Etude exp{\'e}rimentale de l'effet de Synechocystis sp. (picocyanobact{\'e}rie) sur le comportement de certaines bact{\'e}ries d'int{\'e}r{\^e}t sanitaire}, author={Khalid Oufdou and N. Mezrioui and Brahim Oudra and Yedir Ouhdouch}, journal={Annales De Limnologie-international Journal of Limnology}, year={1998}, volume={34}, pages={259-268} }
Dans les ecosystemes aquatiques, le comportement des populations bacteriennes est regi par des facteurs biotiques, principalement par les microalgues. L'objectif de ce travail consiste a determiner l'action, non encore elucidee, d'une picocyanobacterie Chroococcale : Synechocystis sp. sur le comportement de certaines bacteries d'interet sanitaire (Escherichia coli, Salmonella sp. et Vibrio cholerae non-O1). Cette algue qui domine dans les eaux usees du lagunage de Marrakech en periode chaude, a…
Figures and Tables from this paper
5 Citations
Etude expérimentale des voies d'élimination de l'azote en présence de trois microalgues - Synechocystis, Chlorella, Micractinium - : évaluation de l'assimilation algale, de la nitrification et du stripping de l'ammoniac
- Biology
- 1999
L'assimilation algale, the nitrification et le stripping de NH 3 , se sont revelees les principales voies d'elimination de l'ammonium dans le milieu non sterilise.
Allelopatic effects of cyanobacteria extracts containing microcystins on Medicago sativa-Rhizobia symbiosis.
- Biology, MedicineEcotoxicology and environmental safety
- 2011
Detection and quantification of microcystins from cyanobacteria strains isolated from reservoirs and ponds in Morocco
- BiologyEnvironmental toxicology
- 2002
The screening of bloom‐forming and microcystin producer cyanobacteria strains in these fresh water bodies leads us to propose the need for the establishment of a survey of cyanob bacteria and a cyanotoxin‐monitoring program in Morocco.
Occurrence, Antibiotic Resistance and Pathogenicity of Non-O1 Vibrio cholerae in Moroccan Aquatic Ecosystems: A Review
- Environmental Science
- 2012
The problem of water scarcity is becoming more pronounced especially in countries with arid and semi-arid climates such as Morocco, where wastewater or other contaminated water is reused for irrigation without preliminary treatment or for direct consumption by human and animals.
References
SHOWING 1-10 OF 33 REFERENCES
INTERACTIONS BETWEEN BACTERIA AND ALGAE IN AQUATIC ECOSYSTEMS
- Environmental Science
- 1982
The purpose of this review is to examine the means by which algae and heterotrophic bacteria interact in planktonic systems and cite specific evidence from the literature for various types of interactions.
Isolation of chlorine-containing antibiotic from the freshwater cyanobacterium Scytonema hofmanni.
- Biology, Environmental ScienceScience
- 1982
An antibiotic is isolated and characterization from Scytonema hofmanni which inhibits the growth of various algae but has limited effect on nonphotosynthetic bacteria or protozoans and thus may have potential use as a specific algicide.
Dynamics of non-O1 Vibrio cholerae and fecal coliforms in experimental stabilization ponds in the arid region of Marrakesh, Morocco, and the effect of pH, temperature, and sunlight on their experimental survival.
- BiologyCanadian journal of microbiology
- 1995
The spatial-temporal dynamics of non-O1 Vibrio cholerae numbers at a stabilization pond treatment plant confirmed the inverse behaviour of the two bacterial groups noted in the stabilization ponds, and appeared to be less sensitive to sunlight than E. coli whose survival was markedly reduced particularly during summer periods.
Abundance and antibiotic resistance of non-O1 Vibrio cholerae strains in domestic wastewater before and after treatment in stabilization ponds in an arid region (Marrakesh, Morocco)
- Biology
- 1996
The abundance and antibiotic resistance of non-O1 Vibrio cholerae strains were studied in wastewater before and after treatment in stabilization ponds in an arid Mediterranean climate and high ampicillin, amoxicillin and mezlocillin resistance was observed at all sampling points.
Drug resistance in Salmonella strains isolated from domestic wastewater before and after treatment in stabilization ponds in an arid region (Marrakech, Morocco)
- BiologyWorld journal of microbiology & biotechnology
- 1995
Some 118 Salmonella strains isolated before and after treatment in stabilization ponds were tested for antimicrobial resistance, finding high tetracycline resistance was observed at all sampling points, followed by resistance to ampicillin and streptomycin.
Dissolved organic matter utilization and oxygen uptake in algal-bacterial microcosms.
- Environmental ScienceCanadian journal of microbiology
- 1979
Under closed laboratory conditions, the biomass of Anabaena variabilis, Anacystis nidulans, Chlorella pyrenoidosa, and Selanastrum capricornutum increased with increasing levels of dissolved organic matter (DOM) as a result of bacterially produced carbon dioxide (CO2) and (or) cofactors.
Production, by filamentous, nitrogen-fixing cyanobacteria, of a bacteriocin and of other antibiotics that kill related strains
- BiologyArchives of Microbiology
- 2004
Colonies of sixty-five filamentous cyanob bacteria were screened for the production of temperate phages and/or antibiotics on solid medium and seven N2-fixing strains were found to produce antibiotics very active against other cyanobacteria.
Effect of oxygen and temperature on the efficiency of photosynthetic carbon assimilation in two microscopic algae.
- Environmental SciencePlant physiology
- 1980
The results suggest that while photorespiration is undetectable in Coccochloris some photorespiratory CO(2) release occurs in Chlamydomonas.
Diel relationships of microbial trophic groups and in situ dissolved carbohydrate dynamics in the caribbean sea
- Environmental Science
- 1982
The combined PNAN and HBAC fluctuations accounted for a more significant fraction of the variance in the apparent rates of change of PCHO than did any single population parameter indicating that intimate interactions between the microbial plankton groups are important in the in-situ regulation of CHO dynamics.
Fractionated phytoplankton primary production, exudate release and bacterial production in a Baltic eutrophication gradient
- Environmental Science
- 1982
It was demonstrated that selective filtration does not quantitatively separate photoautotrophs and bacteria in the northern Baltic proper and in the eutrophicated area.