MORPHOLOGICAL VARIABILITY OF LONG-LEGGED WOOD FROG (RANA MACROCNEMIS) UNDER THE INFLUENCE OF PERMANENT HYPERMAGNETIC FIELD AT DIFFERENT STAGES OF EMBRYONIC DEVELOPMENT
https://doi.org/10.18470/1992-1098-2016-3-248-254
Abstract
Abstract. Aim. The aim of study was to investigate morphological changes after the effect of magnetic fields on the embryonic development of Rana macrocnemis. Methods. We conducted four different experiments in which embryos at different developmental stages were exposed to the magnetic field. After hatching, the larvae were measured for the following morphological characteristics: trunk length, tail length, body length, tail height at base. Hypermagnetic conditions were created by increasing the tension of the natural magnetic field. The Petri dish with the egg mass was placed at an equal distance (9 cm) between opposite poles of two permanent magnets of cylindrical shape. The north magnetic pole was on top and the south at the bottom of the cup. With this arrangement of the magnets, the magnitude of the magnetic flux was 11.5 m/T. Results. The body length is the most stable feature of all investigated species. The most variable parameter is the length of the tail. In the fourth experiment, under the influence of magnetic fields from the neurula stage to the tailbud stage, we observed the most pronounced decrease of features of tadpoles as compared with the control and with the other experiments. Conclusions. Thus, under the effect of hypermagnetic field at various stages of embryonic development of the Iranian long-legged wood frog, the linear sizes all diagnosed features of tadpoles in the test groups decreased, especially the length of the body and tail.
About the Author
I. T. Gatsalova
K.L. Khetagurov North Ossetian State University, Vladikavkaz
Russian Federation
Russian Federation
Inga T. Gatsalova – a post – graduate student, zoology, bio-ecology and biotechnology Departament.
8(8672) 53-52-00. , 46 Vatutin St., Vladikavkaz, North Ossetia – Alania, 362020, Russia, e-mail: gatsalova.inga@yandex.ruReferences
1. Baskirk R.E., O'Braen U.P. Ostatochnaya namagnichennost' i reaktsii na magnitnoe pole u rakoobraznykh [The residual magnetization and reaction to the magnetic field on crustaceans]. Biogennyi magnetit i magnitoretseptsiya. Novoe o biomagnetizme [Biogenic magnetite and magnetoreception. New about Biomagnetism]. Moscow, Mir Publ., 1989, vol. 2. pp.123-146. (In Russian)
2. Vasilevskiy N.N. Ehkologicheskaya fiziologiya mozga [Ecological physiology of the brain]. Leningrad, Medicina Publ., 1979, 200 p. (In Russian)
3. Temur'yants N.A., Vladimirskii B.M., Tishkin O.G. Sverkhnizkochastotnye elektromagnitnye signaly v biologicheskom mire [Extremely low frequency electromag netic signals in the biological world]. Kiev, Naukova dumka Publ., 1988, 188 p. (In Russian)
4. Abdulkader N.M. Influence of a magnetic field of the raised intensity on manefistations of virulent and persistent properties of staphylococci an experimental infection. Kurskii nauchno-prakticheskii vestnik «Chelovek i ego zdorov'e» [Kursk scientific and practical bulletin "Man and his health"]. 2011, no. 4, pp. 66-70. (In Russian)
5. Gatsalova I.T.,Kalabekov A.L., Chovrebova A.I. Izmenchivost' orientatsii vtoroi borozdy drobleniya v raznykh magnitnykh polyakh v embriogeneze maloaziatskoi lyagushki [The variability in the orientation of the second furrow crushing in different magnetic fields in embryogenesis Iranian long-legged wood frog]. Materialy konferentsii «Sovremennye problemy anatomii, gistologii i embriologii zhivotnykh». Kazan', 2014 [Proceedings of the conference "Modern problems of anatomy, histology and embryology of animals", Kazan, 2014]. Kazan, 2014, 64 p. (In Russian)
6. Tiras Kh.P., Petrova O.N., Myakisheva S.N., Aslanidi K.B. The biological effects of weak magnetic fields: a comparative analysis. Fundamental'nye issledovaniya [Modern high technologies]. 2014, no. 12-7, pp. 1442-1451. (In Russian)
7. Prisny A.A., Kulko S.V., Pigaleva T.A. Influence of a constant magnetic field on morphophysiology parameters of blood sistem and sperm cells of Rana Ridibunda Pall. Nauchnye vedomosti Belgorodskogo gosudarstvennogo universiteta [Belgorod State University Scientific Bulletin. Natural sciences]. 2011, vol. 3, no. 14, pp. 141-145. (In Russian)
8. Paltsev Yu.P., Chekmarev O.M. Kriterii otsenki riska vozdeistviya elektromagnitnykh polei na zdorov'e cheloveka [Criteria of risk assessment of the impact of electromagnetic fields on human health]. Elektromagnitnye polya i zdorov'e cheloveka [Electromagnetic fields and human health]. Moscow, 1999, pp. 34-35. (In Russian)
9. Kholodov Yu.A. Reaktsii nervnoi sistemy na EMP [The reactions of the nervous system on the electromagnetic field]. Moscow, Nauka Publ., 1975, 207 p. (In Russian)
10. Kalabekov A.L., Gassieva V.V., Gatsalova I.T. The variability of the dorsal left and right micro and macromeris germ ordinary Triton Triturus vulgaris in natural and artificial magnetic conditions. Izvestiya Gorskogo GAU [Proceedings of Gorsky State Agrarian University]. 2014, no. 50 (3), 306 p. (In Russian)
11. Gatsalova I.T. Influence of magnetic fields of varying intensity on the morphological variability of long-legged wood frog larvae (Rana Macrocnemis) after the exposure period from neurula to hatching. South of Russia: ecology, development. 2016, vol. 11, no. 1, pp. 199-203. (In Russian) DOI: 10.18470/1992-1098-2016-1-199-203.
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For citations:
Gatsalova I.T. MORPHOLOGICAL VARIABILITY OF LONG-LEGGED WOOD FROG (RANA MACROCNEMIS) UNDER THE INFLUENCE OF PERMANENT HYPERMAGNETIC FIELD AT DIFFERENT STAGES OF EMBRYONIC DEVELOPMENT. South of Russia: ecology, development. 2016;11(3):248-254. (In Russ.) https://doi.org/10.18470/1992-1098-2016-3-248-254
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