Sevil Oldacay
Onsekiz Mart University, College of Health, �anakkale, 17100, Turkey
Gunhan Erdem
Onsekiz Mart University, College of Health, �anakkale, 17100, Turkey
ABSTRACT
The effects of γ-radiation and magnetic fields (MF) on chlorophyll contents and peroxidase. The effects of γ-radiation and Magnetic fields (MF) on chlorophyll contents and peroxidas activities of two sunflower genotypes Nantio and AS508, have been investigated. For the irradiation, 137Cs up to 150 Gy has been used while 5 mT MF have been applied with the different exposure times. Treatments have been applied as alone and combinated on the seeds of genotypes. After the treatments, seedlings have been grown and, chlorophyll contents and peroxidase activities of young seedlings have been determined. Irradiation has decreased germination rates and chlorophyll contents while it has increased peroxidase activities of both genotypes, but seeds have been more radiosensitive in Nantio than in AS508. MF has different effects on the parameters than the radiation. It has also decreased germination rates but increased chlorophyll contents and decreased peroxidase activities. On the other hand, the results of combinated exposures have shown that MF exposure has reduced the effects of radiation on all parameters that have been examined.
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How to cite this article
Sevil Oldacay and Gunhan Erdem, 2002. Evaluation of Chlorophyll Contents and Peroxidase Activities in Helianthus annuus Genotypes Exposed to Radiation and Magnetic Fields. Journal of Applied Sciences, 2: 934-937.
DOI: 10.3923/jas.2002.934.937
URL: https://scialert.net/abstract/?doi=jas.2002.934.937
DOI: 10.3923/jas.2002.934.937
URL: https://scialert.net/abstract/?doi=jas.2002.934.937
REFERENCES
- Arnon, D.I., 1949. Copper enzymes in isolated chloroplasts. Polyphenoloxidase in Beta vulgaris. Plant Physiol., 24: 1-15.
CrossRefPubMedDirect Link - Birecka, H. and A. miller, 1974. Cellwall and protoplast isoperoxidases in relation to injury, indoleacetic acid and ethylene effects. Plant Physiol., 53: 569-579.
Direct Link - Carbonell, M.V., E. Martinez and J.M. Amaya, 2000. Stimulation of germination in rice (Oryza sativa L.) by a static magnetic field. Electromagn. Biol. Med., 19: 121-128.
CrossRefDirect Link - Conroy, J.M., D.C. Borzelleca and L.A. McDonell, 1982. Homology of plant peroxidases: An immunological approach. Plant Physiol., 69: 28-31.
Direct Link - Danilov, V., T. Bas, M. Eltwz and A. Rzakoulieva, 1994. Artifical magnetic field effect on yielf and quality of tomatoes. Acta Hortic., 366: 279-285.
Direct Link - Goodman, E.M., B. Greenebaum and M.T. Marron, 1995. Effects of elec-tromagnetic fields on molecules and cells. Int. Rev. Cytol., 158: 279-338.
PubMedDirect Link - Jajte, J.M., 2000. Programmed cell death as a biological function of electromagnetic fields at a frequency of (50/60 Hz)-review. Med. Pr., 51: 383-389.
Direct Link - Novikov, V.V., I.M. Sheiman and E.E. Fesenko, 2002. Effect of weak and superweak magnetic fields on the intensity of asexual propagation of Planarians Dugesia tigrina. Biofizika, 47: 125-129.
PubMed - Scbreiber, W.G., E.M. Teichmann, I. Schiffer, J. Hast and W. Akbari et al., 2001. Lack of mutagenic and co-mutagenic effects of magnetic fields during magnetic reonance imaging. J. Magnet. Resonance Imag., 14: 779-788.
Direct Link