ноя 19, 2011 | 00:11

Full text made available free:
E. A. Solomonova and S. A. Ostroumov. Tolerance of an Aquatic Macrophyte Potamogeton crispus L.to Sodium Dodecyl Sulphate. Moscow University Biological Sciences Bulletin, 2007, Vol. 62, No. 4, p. 176–179.
www.researchgate.net/profile/Sergei_Ostroumov/blog/6643_ToleranceMacrophytes; DOI: 10.3103/S0096392507040074;
Full text online free: www.scribd.com/doc/45556848;
Abstract: Macrophytes are important components of ecosystems and participate in the purification of water, which contributes to the sustainability of water quality. This is especially important in conditions of pollution of water bodies and water streams. Surfactants constitute an important class of pollutants. Therefore, further investigation and clarification of the facts concerning the interaction of plants and various surfactants are necessary. The present paper presents the results of investigations of the effect of various concentrations of aqueous solutions of the anionic surfactant sodium dodecyl sulphate (SDS) on the viability of the aquatic macrophytes, the pondweed Potamogeton crispus L. When the effects of the anionic surfactant sodium dodecyl sulphate on the aquatic macrophytes Potamogeton crispus L. were studied, it was found that the concentrations of 83–133 mg/l caused fragmentation of the stems of plants. The tolerance of the plants to the negative effects of the surfactant was higher in the spring (April) than in the autumn (September). DOI:10.3103/S0096392507040074; Moscow University Biological Sciences Bulletin, 2007, Vol. 62, No. 4, p. 176–179. ISSN 0096-3925, © Allerton Press, Inc., 2007. Available at SpringerLink; Original Russian Text © E.A. Solomonova, S.A. Ostroumov, 2007, published in Vestnik Moskovskogo Universiteta. Biologiya, 2007, No. 4, pp. 39–42. Keywords: effects, surfactant, aquatic, macrophytes, Potamogeton, crispus, Concentrations, fragmentation, stems, plants, negative, pollution, detergents, phytoremediation, chemico-biotic interactions, water quality, sodium dodecyl sulphate, SDS, S.A.Ostroumov 176 Macrophytes are important components of ecosystems and participate in the purification of water and support its quality (McCutcheon and Schnoor, 2003; Wetzel, 2001). This is especially important in conditions of pollution of water bodies and water courses. Surfactants constitute a class of pollutants. The ecological danger of surfactants is still insufficiently investigated and analyzed. On the one hand, there are numerous publications on various bioeffects and disturbances of the structure and function of organisms under the action of synthetic surfactants (Davydov et al., 1997; Ostroumov, 2001, 2005, 2006). On the other hand, some authors do not qualify surfactants as major pollutants (Moore and Ramamoorthy, 1984) and believe that, ecologically, they are not highly dangerous for aquatic ecosystems (Fendinger et al., 1994). On the basis of studies of the effect of surfactants and surfactant-containing mixtures and the elucidation and comparison of the tolerance of organisms belonging to different taxa, it was suggested to use angiospermous plants for phytoremediation (Ostroumov, 2001). In this aspect, further investigation and clarification of the facts concerning the interaction of plants and various xenobiotics are necessary. The present paper presents the results of investigations of the effect of various concentrations of aqueous solutions of the anionic surfactant sodium dodecyl sulphate (SDS) on the viability of the aquatic macrophyte pondweed Potamogeton crispus L.