47 results for “Algae”

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Research ArticleOpen accessIn the abstractToxicological Response of the Green Alga Chlorella vulgaris, to Some Heavy MetalsE. Afkar, H. Ababna, A. A. FathiProblems statement: The disturbance of aquatic ecosystems provoked by heavy metals pollution from industrial and domestic sources, has as consequence the loss of biological diversity, as well as increased bioaccumulation and magnification of toxicants in the food chain. The aim of this study was to evaluate the effect of some heavy metals on some physiological activities of Chlorella vulgaris beyerinck … …American Journal of Environmental Sciences, Vol. 6, Issue 3 · 30 Jun 2010 · 10,778 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSpecies Composition, Ecological Parameters and Seasonal Changes of Planktonic Ciliates Population in Bukan Dam ReservoirA. Mohsenpour Azary, F. Mohebbi, A. Eimanifar et al.Problem Statement: Since there is no evidence to identify present species in the Bukan dam reservoir, therefore, this study was conducted to provide background for fisheries purposes. Approach: The abundance and species composition of ciliates were analyzed in the Bukan Dam reservoir (west Azerbaijan, Iran) from January to December 2007. Surface water samples were collected at monthly intervals at two … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 1 · 31 Mar 2010 · 7,784 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA Mini Review: Cholera Outbreak via ShellfishR. Suzita, A. S. Abdulamir, Fatimah Abu Bakar, R. SonProblem statement: Food borne illness occurs all over the world. Vibrio cholerae is the etiological agent of cholera which is spread by contaminated food, water or direct fecal contact with food handlers. There are also examples of sporadic outbreaks of illness attributed to raw products eaten unprocessed. Consequently, there was a widespread concern that food in international trade carries pathogenic … …American Journal of Infectious Diseases, Vol. 5, Issue 1 · 31 Mar 2009 · 8,315 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSurvival of Vibrio cholerae O139 in Association with Anabaena variabilis in Four Different MicrocosomsZannatul FerdousInvestigation was carried out to see the association of Vibrio cholerae O139 with Anabaena variabilis, in four different types of water. Conventional media were used to count culturable bacteria while epi fluorescence microscopy to count the viable but non culturable (VBNC) V. cholerae O139. It was found that the culturable form of V. cholerae O139 found 9 days in the … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 8,316 accessesView PDF Cite

Research ArticleOpen accessIn the abstractTreatment of Wastewater by Natural Lagoon for its Reuse in IrrigationM. Driche, D. Abdessemed, G. NezzalThe process of natural lagoon consists in purifying the waste water by simple flow of the effluent in not very deep ponds where proliferate bacteria, algae and other living organisms, under a surrounding air and in the presence of a solar radiation. For this study, which is spread out over 3 years (2004-2006) and which still continues, we chose the … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 7,181 accessesView PDF Cite

Research ArticleOpen accessIn the abstractBioaccumulation of Cr(III) ions by Blue Green-alga Spirulina sp. Part II. Mathematical ModelingKatarzyna Chojnacka, Piotr M. WojciechowskiIn the present paper bioaccumulation of Cr(III) ions by blue-green algae Spirulina sp. is discussed. We found that the process consisted of two stages: passive in which Cr(III) ions are bound to the surface of cells, identical with biosorption and active, metabolism-dependent, in which Cr(III) ions are transported into the cellular interior. The passive stage occurs in both living and … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 4 · 31 Dec 2007 · 8,294 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSpirulina protects against cadmium-induced hepatotoxicity in ratsAmr Amin, Alaaeldin A. Hamza, Sayel Daoud, Waleed HamzaCadmium (Cd) is an environmental and industrial cumulative pollutant that most affects many organs specially the liver. The protective effect of Spirulina, filamentous blue green algae, on Cd – induced oxidative stress and hepatotoxicity was evaluated in male rats. Oral administration of water extract of Spirulina for seven days followed by an acute toxic dose of Cd (3.5 mg kg … …American Journal of Pharmacology and Toxicology, Vol. 1, Issue 2 · 30 Jun 2006 · 11,533 accessesView PDF Cite