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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Barkhatov Yu.V., Khromechek E.B., Gubanov V.G.
Заглавие : Effects of the bacterial component on the viability of the Paramecium bursaria symbiotic complex (Infusorian-Zoochlorella)
Место публикации : Russian Journal of Ecology. - 2001. - Vol. 32, Is. 4. - С. 261-265. - ISSN 10674136 (ISSN) , DOI 10.1023/A:1011314622045
Ключевые слова (''Своб.индексиров.''): endosymbiosis--matter exchange cycle--paramecium bursaria--bacterium--symbiosis--viability--algae--bacteria (microorganisms)--ciliophora--paramecium--paramecium bursaria--zoochlorella
Аннотация: A hypothesis is considered that the establishment and maintenance of mass exchange processes in the Paramecium bursaria symbiotic complex (infusorian-alga) depends on the presence of the third component-bacteria-whose role is underestimated but essential for completing the exchange cycle. The role of this component in the symbiotic cycle of Paramecium bursaria is possible to reveal using special bactericidal preparations specifically inhibiting the bacteria involved in the metabolic cycle but having no effect on the functions of the host cell and the zoochlorella population. Experiments with various preparations of this type were performed, and the response to treatment was estimated from growth rates of the symbiotic complex and its components. This allowed identification of an antibiotic (rifampicin) that had no adverse influence on free-living zoochlorella and chlorella-free paramecia (the basic components of the symbiotic cycle) but drastically inhibited the growth of the P. bursaria symbiotic complex, which could be interpreted as evidence in favor of the hypothesis concerning the existence of the third symbiotic component.
Scopus
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Barkhatov Y.V., Khromechek E.B., Gubanov V.G.
Заглавие : Effects of the bacterial component on the viability of the Paramecium bursaria symbiotic complex (infusorian-zoochlorella)
Колич.характеристики :5 с
Место публикации : Russ. J. Ecol.: MAIK NAUKA/INTERPERIODICA, 2001. - Vol. 32, Is. 4. - P261-265. - ISSN 1067-4136, DOI 10.1023/A:1011314622045
Примечания : Cited References: 12
Ключевые слова (''Своб.индексиров.''): paramecium bursaria--endosymbiosis--matter exchange cycle
Аннотация: A hypothesis is considered that the establishment and maintenance of mass exchange processes in the Paramecium bursaria symbiotic complex (infusorian-alga) depends on the presence of the third component-bacteria-whose role is underestimated but essential for completing the exchange cycle. The role of this component in the symbiotic cycle of Paramecium bursaria is possible to reveal using special bactericidal preparations specifically inhibiting the bacteria involved in the metabolic cycle but having no effect on the functions of the host cell and the zoochlorella population. Experiments with various preparations of this type were performed, and the response to treatment was estimated from growth rates of the symbiotic complex and its components. This allowed identification of an antibiotic (rifampicin) that had no adverse influence on free-living zoochlorella and chlorella-free paramecia (the basic components of the symbiotic cycle) but drastically inhibited the growth of the P. bursaria symbiotic complex, which could be interpreted as evidence in favor of the hypothesis concerning the existence of the third symbiotic component.
WOS
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Evsyunina E. V., Taran D. O., Stom D. I., Saksonov M. N., Balayan A. E., Kirillova M. A., Esimbekova E. N., Kratasyuk V. A.
Заглавие : Comparative assessment of toxic effects of surfactants using biotesting methods
Место публикации : Inland Water Biol. - 2016. - Vol. 9, Is. 2. - С. 196-199. - ISSN 19950829 (ISSN) , DOI 10.1134/S1995082916020061
Ключевые слова (''Своб.индексиров.''): algae--bioluminescent bacteria--biotesting--daphnia--fluorescence of chlorophyll--infusorian--surfactants--survival--toxic effect--algae--ciliophora--crustacea--daphnia--daphnia magna--paramecium caudatum--photobacterium phosphoreum--protozoa--scenedesmus quadricauda
Аннотация: This study assesses the comparative sensitivity and possibility of obtaining fast results of various methods of biotesting for several surfactants: Tween 85, sodium dodecyl sulfate (SDS), Fairy dishwashing gel, and Mif washing powder. The following test organisms are used for the study: luminescent bacteria Photobacterium phosphoreum (Beijerinck), preparation of Ecolum luminescent bacteria, unicellular algae Scenedesmus quadricauda (G.M. Smith), infusorian Paramecium caudatum (Ehrenberg), and crustacean Daphnia magna (Straus). It has been revealed that Fairy dishwashing gel possesses the strongest toxicity against the studied test objects. Daphnia and algae are most sensitive to the effects of Fairy and SDS, protozoan and luminescent bacteria are most sensitive to SDS, and Ecolum is most sensitive to Mif washing powder. The tested aquatic organisms and Ecolum are most tolerant to the effect of Tween 85. © 2016, Pleiades Publishing, Ltd.
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