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The Preliminary Study of Biological Effect of Static Magnetic Field on Hydra Magnipapillata and Dugesia Japonica

Author: GuoHui
Tutor: PanHongChun
School: Anhui Normal University
Course: Zoology
Keywords: Big nipple hydra Dugesia japonica Magnetic field Asexual reproduction Antioxidant enzymes Regeneration
CLC: X174
Type: Master's thesis
Year: 2010
Downloads: 27
Quote: 0
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Abstract


In this paper, asexual populations cumulative survival of the constant magnetic field strength the big nipple hydra and Japan Dugesia culture, population growth, and the impact of two kinds of activities of antioxidant enzymes, also explores the constant magnetic field and magnetized water on The big nipple hydras and Dugesia japonica head regeneration process. The results showed that: 1. Constant magnetic field of large nipples hydra asexual budding and two kinds of antioxidant enzyme activity has a significant effect. Training 23d, the the hydra population density under all exposed magnetic gradient the hydra population density higher than the control gradient to the end of the experiment from the experiment 3d field intensity the 190mT gradient under the the hydra population density was always the highest. In addition, the control gradient the hydra populations instantaneous growth rate is always significantly lower than the the exposed magnetic gradient instantaneous population growth rate, the control group, the field strength 190mT gradient hydra 7d when the largest populations instantaneous growth rate, 7d after populations instantaneous growth rate gradually reduced; field strength 310mT 450mT gradient hydra 9d populations instantaneous growth rate 9d populations instantaneous growth rate gradually decreased; hydroids field strength 418mT gradient instantaneous growth rate of the population in the first 11d. , SOD and CAT activity decreases significantly with increasing magnetic field strength. 2 constant magnetic field Dugesia japonica asexual transverse cracking reproductive and two kinds of antioxidant enzymes in significant impact. 15d after the culture, the planarian population density under all exposed magnetic gradient are different degrees higher than the the planarian population density in the control gradient decreases significantly with increasing magnetic field strength, SOD and CAT activity. Experimental results show that: 200mT-500mT range of a constant magnetic field of field strength small can promote planarian asexual transverse cracking reproductive, and significant inhibition of the Planarian the SOD and CAT activity in a constant magnetic field. Low doses of magnetic treatment on the asexual planarian stimulation. Constant magnetic field and magnetized water a big nipple hydra head regeneration have a significant impact. 8h-24h in a constant magnetic field treatment, regeneration, magnetic treatment to promote the regeneration of hydra head; regeneration after 28h, all regeneration rate of the experimental group were lower than the control group. Magnetized water, renewable early magnetized water to promote hydra head regeneration processes; the regenerative late, the magnetized water hydra head regeneration is inhibited to some extent. Constant magnetic field and magnetized water regeneration of Dugesia japonica head has a significant impact. Different intensity of magnetic treatment on the planarian head regeneration process there are some differences in head regeneration of the entire development process, the field strength small constant magnetic field of 400mT-450mT range planarian head regeneration speed is always faster than other groups to promote the role is extremely significant. Magnetized water on the head of the planarian regeneration role and promote the role significantly strengthened with increasing magnetization. The a moderate magnetic treatment (magnetic field and magnetization water) promote planarian head regeneration process, accelerate wound healing.

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