понедельник, 1 апреля 2013 г.

New method to bioassay chemicals

A discovery of a new method for testing toxicity of chemicals. This method is especially useful to find and characterize phytotoxicity of chemicals. This method proved to be also useful to find new facts on environmental hazards of chemicals and chemical pollution of environment. Using this method a discovery was made of a new important examples of phytotoxicity of synthetic organic chemicals, exemplified by some synthetic surfactants.

Abstract
The authors discovered that the development of root hairs in plant seedlings can be used as a test for potential toxicity of chemicals. The seedlings of Fagophyrum esculentum, Sinapis alba, and Triticum aestivum were used. The synthetic surfactant Triton X-100 was bioassayed. Triton X-100 induced a loss of adherence to the substrate of the F. esculentum and S. alba seedlings. Triton X-100 inhibited the development of root hairs in the seedlings of these species as well as in the seedlings of T. aestivum. This is a new approach to bioassay xenobiotics and pollutants as exemplified by synthetic surfactants.

Ostroumov S.A.; Maximov V.N. A bioassay of surfactant solutions based on the disturbance of seedling adhesion to the substrate and the development of root hairs by rhizodermis. - Izvestiya Akademii Nauk SSSR, Seriya Biologicheskaya, 1991, No. 4, P. 571-575.
Cited as:
Ostroumov, S. A. and V. N. Maksimov (1991). A bioassay of surfactant solutions based on the disturbance of seedling adhesion to the substrate and the dev elopment of root hairs by the rhizodermis. Izvestiya Akademii Nauk Sssr Seriya Biologicheskaya (4): 571-575.

Key words: bioassay, chemicals, synthetic, surfactant, Triton X-100, xenobiotics, toxicity, phytotoxicity, environment, hazards, pollution, root hairs, seedlings, Fagophyrum esculentum, Sinapis alba, Triticum aestivum.
Ключевые слова: биотест, химические вещества, синтетический, поверхностно-активные вещества, Triton X-100, ксенобиотики, токсичность, фитотоксичность, окружающая среда, вредное воздействие, загрязнение, корневые волоски, проростки, Fagophyrum esculentum, Sinapis alba, Triticum aestivum.


See also:
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http://alsuyus.blogspot.ru/2013/03/unique-experience-in-using-non.html

First paper to report new phytotoxic effects of a liquid detergent. New phytotoxic effects of the liquid detergent "Vilva" on the seedlings of the higher plants, buckweat Fagopyrum esculentum and rice Oryza sativa, were discovered.
http://alsuyus.blogspot.ru/2013/03/new-phytotoxic-effects-of-liquid.html

First publication to report phytotoxicity of a synthetic polymeric surfactant. An innovative bioassay with the higher plant Fagopyrum esculentum (buckwheat) was carried out. A negative reaction of buckwheat seedlings to pollution of the aqueous medium with a polymeric surfactant was discovered.
http://alsuyus.blogspot.ru/2013/02/phytotoxicity-of-synthetic-polymeric.html

First publication to report both inhibitory and stimulation effects of a synthetic surfactant on two unique strains of the ocean species of cyanobacteria Synechococcus from the collection of WHOI (U.S.A.).
http://alsuyus.blogspot.ru/2013/02/inhibitory-and-stimulation-effects-of.html

First publication to report a hazardous effect of a synthetic non-ionic surfactant (exemplified by Triton X-100) on diatom algae, a marine species, Thalassiosira pseudonana.
http://alsuyus.blogspot.ru/2013/01/hazardous-effect-of-synthetic-non-ionic.html

New broad picture of the fundamental role of biological filtering in self-purification (and self-bioremediation, self-organization, as well as stability) of aquatic ecosystems.
http://alsuyus.blogspot.ru/2013/01/fundamental-role-of-biological.html

Fundamentally new solution to the problem of selecting criteria for identification and assessing environmental hazards of chemical pollutants, toxicants. The paper explains why the currently accepted set of criteria is non-efficient and leads to mistakes.
http://alsuyus.blogspot.ru/2013/01/new-ideas-on-criteria-for.html

First paper in which it was clearly proved that the synthetic chemical (exemplified by the surfactant sodium dodecylsulfate, SDS), when it pollutes water, produces dangerous effects on both marine mussels (Mytilus edulis) and phytoplankton
http://alsuyus.blogspot.ru/2012/12/new-facts-on-chemical-of-important.html

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http://alsuyus.blogspot.com/2012/12/polyfunctional-role-of-biodiversity-in.html

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http://alsuyus.blogspot.ru/2012/12/ecological-mechanisms-of-eutrophication.html

New concepts and terminology in ecology, and science of limnology and biological oceanography: ecological tax; ecological repair of water quality. Some aspects of water filtering activity of filter-feeders.
http://alsuyus.blogspot.com/2012/10/new-concepts-and-terminology-in-ecology.html

Inhibition of mussel suspension feeding by surfactants of three classes. Marine mussels Mytilus, Atlantic Ocean; ecotoxicology of cationic, anionic, and non-ionogenic detergents
http://alsuyus.blogspot.com/2012/10/inhibition-of-mussel-suspension-feeding.html

New aspects of water quality formation and water quality control in natural freshwater and marine ecosystems; new facts on negative effects of chemical pollutants (e.g., synthetic surfactants and detergents) on aquatic organisms, especially filter-feeders.
http://alsuyus.blogspot.com/2012/10/basics-of-molecular-ecological.html

First paper to report concentrations of a number of rare earth elements (Ce, Nd, U, Hf, Cs, Au) in biological detritus in an aquatic system.
http://alsuyus.blogspot.com/2012/09/the-role-of-biodetritus-in-accumulation.html

Modern comments on innovative scientific terms (ecological chemomediators, ecological chemoregulators).
http://alsuyus.blogspot.com/2012/09/modern-comments-on-innovative.html

Innovative theory of ecological mechanisms of self-purification of water in freshwater and marine ecosystems.
http://alsuyus.blogspot.com/2012/09/biocontrol-of-water-quality.html

Innovative and multifaceted conceptualization of how almost all aquatic organisms function together toward making water clear and clean.
http://alsuyus.blogspot.com/2012/09/on-multifunctional-role-of-biota-in.html

Detailed analysis of the discovery and innovation: a new aspect of the functioning of ecosystem.
http://alsuyus.blogspot.ru/2012/10/aquatic-ecosystem-as-bioreactor-water.html

New facts on how detergents slow down the filtration of water by aquatic organisms; new inhibitory effects of surfactants TDTMA and SDS on water filtering activity of the marine mollusks oysters Crassostrea gigas.
http://alsuyus.blogspot.ru/2012/11/new-facts-on-hazards-of-synthetic.html

First and unique paper in which an international team of experts, scientists of 3 countries formulated a short list of research priorities in ecology and environmental sciences.
http://alsuyus.blogspot.ru/2012/11/medium-term-and-long-term-priorities-in.html

Fundamentally new solution to the problem of selecting criteria for identification and assessing environmental hazards of chemical pollutants, toxicants.
http://alsuyus.blogspot.ru/2012/11/criteria-for-identification-and.html

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