Brahim Oudra

ORCID: 0000-0001-6295-9637
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About
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Research Areas
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Biocrusts and Microbial Ecology
  • Marine and coastal ecosystems
  • Aquatic Ecosystems and Biodiversity
  • Constructed Wetlands for Wastewater Treatment
  • Water Quality and Pollution Assessment
  • Microbial Community Ecology and Physiology
  • Seaweed-derived Bioactive Compounds
  • Marine Toxins and Detection Methods
  • Heavy metals in environment
  • Algal biology and biofuel production
  • Coastal wetland ecosystem dynamics
  • Plant Micronutrient Interactions and Effects
  • Vibrio bacteria research studies
  • Plant Growth Enhancement Techniques
  • Environmental Toxicology and Ecotoxicology
  • Soil erosion and sediment transport
  • Protein Hydrolysis and Bioactive Peptides
  • Legume Nitrogen Fixing Symbiosis
  • Adsorption and biosorption for pollutant removal
  • Phosphorus and nutrient management
  • Fluoride Effects and Removal
  • Marine Biology and Ecology Research
  • Marine and coastal plant biology
  • Moringa oleifera research and applications

Cadi Ayyad University
2015-2025

Mohamed I University
2022

Premier University
2022

Institut National de Recherche Halieutique
2022

Université de Montréal
2005

Université du Québec à Montréal
2005

Université Laval
2005

Institut National de la Recherche Scientifique
2005

Biologie Labor
2002

Sup de Co Marrakech
2000

Pollution by heavy metals is one of the most serious issues in world, and principal sources are manufacturing, fertilizers, mining, pesticides, transport, wastewater discharge. In this study, presence macroelements (Nitrogen (N) Phosphorus (P)) (Chromium (Cr), Nickel (Ni), Cadmium (Cd), Iron (Fe), Zinc (Zn), Lead (Pb), Cooper (Cu), Manganese (Mn)) green tide caused seaweed Ulva lactuca from Marchica lagoon (NE-Morocco, Mediterranean) was evaluated. The mean values P N algae were 1773.33...

10.3390/w15071310 article EN Water 2023-03-27

Abstract The health risks linked to the consumption of microcystin-accumulating crops have been increasing worldwide in toxic cyanobloom-occurring regions. bioaccumulation microcystins (MCs) agricultural produce at environmentally realistic concentrations is poorly investigated. In this field study, we assessed MCs raw water used for irrigating fruit (bioaccumulation) and watering farm animals Lalla Takerkoust region (Marrakesh, Morocco). Thus, were extracted from samples quantified by...

10.1007/s11356-023-27914-1 article EN cc-by Environmental Science and Pollution Research 2023-06-09

In Morocco, the occurrence of toxic cyanobacteria blooms is confirmed in some water bodies used for recreational and/or as drinking reservoirs. According to WHO recommendations, establishment a monitoring program microcystins necessity. This paper presents toxicological studies 19 strains Microcystis, Synechocystis, Pseudanabaena, and Oscillatoria. These were isolated from various including natural lakes, reservoirs, ponds located central regions Morocco. The isolation, culture, biomass...

10.1002/tox.10029 article EN Environmental Toxicology 2002-01-01

The effects of cyanobacteria aqueous extracts containing Microcystin-LR (MC-LR) on the seed germination and growth Pisum sativum, Lens esculenta, Zea mays Triticum durum were investigated. Experiments carried out a range doses extract (equivalent to 0, 1.6, 2.9, 5.8, 8.7 11.6 μ g MC-LR/mL). results confirm that these plants sensitive cell-free toxic Microcystis inhibition was dose dependent. One-way analysis variance (ANOVA) showed P. sativum is most tested species with 97% rate reduction L....

10.1080/03601230802062307 article EN Journal of Environmental Science and Health Part B 2008-06-24

The world-wide occurrence of harmful cyanobacteria blooms "CyanoHAB" in fresh and brackish waters creates problems for all life forms. During CyanoHAB events, toxic produce cyanotoxins at high levels that can cause chronic sub-chronic toxicities to animals, plants humans. Cyanotoxicity eukaryotes has been mainly focused on but during these last years, data, related cyanotoxin (mainly microcystins, MCs) impact both aquatic terrestrials crop irrigated by water containing toxins, have become...

10.3390/toxins1020113 article EN cc-by Toxins 2009-11-25

Cyanobacterial harmful algal blooms (CyanoHABs) threaten public health and freshwater ecosystems worldwide. In this study, our main goal was to explore the dynamics of cyanobacterial how microcystins (MCs) move from Lalla Takerkoust reservoir nearby farms. We used Landsat imagery, molecular analysis, collecting analyzing physicochemical data, assessing toxins using HPLC. Our investigation identified two species responsible for blooms: Microcystis sp. Synechococcus strain produced three MC...

10.1016/j.hal.2024.102631 article EN cc-by Harmful Algae 2024-04-27

Early life stage tests with zebrafish (Danio rerio) were used to detect toxic effects of compounds from a Microcystis aeruginosa natural bloom extracton their embryolarval development. We carried out the exposure developing stages fish complex cyanobacterial blooms containing hepatotoxic molecules - microcystins. Fish embryo performed extract 3 mg·L-1 Eq microcystin-LR showed that after 24 h all embryos died. The same other diluted extracts (containing 0.3, 0.1 and 0.03 microcystin-LR) shown...

10.3390/ijms10010133 article EN International Journal of Molecular Sciences 2009-01-05
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