Services of Algae to the Environment

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Services of algae to the environment

Authors: RAI LAL CHAND (1) ; HAR DARSHAN KUMAR (1) ; MOHN F. H. (2) ; SOEDER C. J. (2) ; Affiliations: (1) Department of Botany, Laboratory of Algal Biology, Banaras Hindu University, Varanasi - 221 005, INDIA; (2) Forschungszentrum, Jülich, Institut für Chemie und Dynamik der Geosphäre (ICG-6), Postfach 1913, 52425, Jülich, ALLEMAGNE

Résumé / Abstract

Being autotrophic, algae occupy a strategic place in the biosphere. They produce oxygen both directly and indirectly through the chloroplasts of all green plants. The chloroplasts are believed to have originated from archaic prokaryotic algae through endosymbiosis with primitive eukaryotic cells. Phytoplankton and other algae regulate the global environment not only by releasing oxygen but also by fixing carbon dioxide. They affect water quality, help in the treatment of sewage, and produce biomass. They can be used to produce hydrogen which is a clean fuel, and biodiesel, and fix N[2] for use as a biofertilizer. Some other services of algae to the environment include restoration of metal damaged ecosystems, reducing the atmospheric CO[2] load and mitigating global warming, reclamation of saline-alkaline unfertile lands, and production of dimethyl sulphide (DMS) and oxides of nitrogen (NOx) involved in the regulation of UV radiation, ozone concentration, and global warming. Algae can be valuable in understanding and resolving certain environmental issues.

Original report here

Revue / Journal Title
Journal of microbiology and biotechnology (J. microbiol. biotechnol.) ISSN 1017-7825
Source / Source
2000, vol. 10, no2, pp. 119-136 (143 ref.)
Langue / Language
Anglais

Review ; Algae ; Environment impact ; Biomass ; Nitrogen fixation ; Nitric oxide ; Monitoring ; Carbon dioxide ; Water quality ; Greenhouse effect ; Waste treatment ; Bioremediation ; Biofuel ; Heavy metal ; Hydrogen ; Pollution ; Application ; Thallophyta ;
Mots-clés français / French Keywords - Article synthèse ; Algae ; Impact environnement ; Biomasse ; Fixation azote ; Azote monoxyde ; Monitorage ; Carbone dioxyde ; Qualité eau ; Effet serre ; Traitement déchet ; Bioremédiation ; Biocarburant ; Métal lourd ; Hydrogène ; Pollution ; Application ; Méthyle sulfure ; Thallophyta ;

Mots-clés espagnols / Spanish Keywords
Artículo síntesis ; Algae ; Impacto medio ambiente ; Biomasa ; Fijación nitrogeno ; Nitrógeno monóxido ; Monitoreo ; Carbono dióxido ; Calidad agua ; Efecto invernadero ; Tratamiento desperdicios ; Bioremediación ; Biocarburante ; Metal pesado ; Hidrógeno ; Polución ; Aplicación ; Thallophyta ;



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