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Effects of Low Dose Gamma-irradiation on Alleviation of Salt Stress in Rice (Oryza sativa L.) Seedling
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 Title & Authors
Effects of Low Dose Gamma-irradiation on Alleviation of Salt Stress in Rice (Oryza sativa L.) Seedling
Baek, Myung-Hwa; Kim, Jin-Hong; Wi, Seung-Gon; Lee, In-Jung; Lee, Kyu-Seong; Kim, Jae-Sung;
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To investigate alleviation effects of salt stress by low dose gamma-irradiation on seedling growth of rice (Oryza shrive L), in plants of two rice cultivars (Ilpumbyeo and Gancheokbyeo), seeds were irradiated with the different doses of gamma-ray by irradiator (, ca.150 TBq of capacity, AECL). The salt stress caused a remarkable decrease of seedling growth, particularly for dry weight. In addition, relative growth rate was decreased over 50% by the salt stress. However, the salt stress-induced inhibition of growth was alleviated by gamma-irradiation. Especially, the relative growth rate of shoot showed the reduction effect over 30% at 4 Gy-irradiated groups as compared with that of control. Also, electrolyte leakage and relative water content were damaged, respectively 4 times and 30% by the salt stress but the damages were alleviated by the gamma-irradiation. These alleviation effects were observed similarly in both the cultivars tested. These results suggest that the low dose gamma-irradiation may have a better protection or the salt stress.
Alleviation effects;low dose gamma-irradiation;salt stress;seedling growth;electrolyte leakage;relative water content;
 Cited by
Flowers, T. J. and Yeo, A. R. (1995) Breeding for salinity resistance in crop plants: where next?, Aust. J. Plant Physiol. 22, 875-884 crossref(new window)

Choung, J. I., Yu, S. J., Oh, M. K., Baek, N. H., Ko, J. K. and Lee, J. K. (2002) Varietal responses of rice growth and yield to soil salt content, Kor. J. Crop Sci. 47, 422-426

Lee, I. S. (2002) In vitro selection and characterizations of gamma radiation-induced salt tolerance lines in rice, Ph.D. Thesis, Chungnam National University, Daejon

Balasuburamanian, V. and Rac, S. (1977) Physiology basis of salt tolerance in rice, PI, physiol. section, Tamil Nagada Agri. Univ. India. 26, 291-294

Luckey, T. D. (1980) Hormesis with ionizing radiation, CRC press. Inc. Boca Raton, Florida

Kim, J. S. and Lee, Y. B. (1998) Ionizing radiation hormesis in crops, Kor. J. Environ. Agri. 17, 76-85

Kim, J. S., Lee, Y. K., Back, M. W., Lee, Y. B. and Park, Y. S. (1999) Influence of the low dose ${\gamma}$-ray radiation on the old seed germination and growth of chinese cabbage, Kor. J. Environ. BioI. 17, 11-15

Lee, E. K., Kim, J. S., Lee, Y. K. and Lee, Y. B. (1998) Effect of low dose ${\gamma}$-ray irradiation on the germination and growth in red pepper (Capsicum annuum L.), J. Kor. Soc. Hort. Sci. 39, 670-675

Campos, F. F. and Velasco, E. G. (1962) Comparative effect of $cobalt^{60}$ on plant character of two recommended Philippine lowland rice varieties, Philipp. Agric. 46, 93-95

Kaiwdl, K. and Rosner, M. (1965) The accelerating effect of small radiation doses on plant, Bayerisches Landwirtschaftliches Jahrbuch 42, 11-29

Vlasyuk, P. A. (1964) Effect of ionizing radiation on the physiological-biochemical properties and metabolism of agricultural plants, Inst. Fiziol. Biokhim, Rast. SSR. 24-31

Kim, J. S., Lee, E. K., Back, M. H., Park, H. S. and Kim, K. H. (1999) Effect of low dose of gamma radiation on the growth of groundnut (Arachis hypogaea L.), Kor. J. Environ. Biol. 17, 257-261

Kim, J. S., Lee, Y. K., Park, H. S., Back, M. H. and Kim, D. H. (2000) Influence of low dose gamma radiation on the growth of maize (Zea mays L.) varieties, Kor. J. Environ. Agri. 19, 328-331

Kim, J. S., Lee, E. K., Lee, Y. K. and Lee, Y. B. (1999) Influence of artificial acid rain on the growth of soybean irradiated with low dose gamma radiation, Kor. J. Environ. Agri. 18, 245-249

Lee, H. Y., Kim, J. S., Baek, M. H., Park, S. C. and Park, Y. I. (2002) Effects of low dose ${\gamma}$-radiation on photosynthesis of red pepper (Capsicum annuum L.) and the reduction of photoinhibition, Kor. J. Environ. Agri. 21, 83-89 crossref(new window)

Lee, H. Y., Kim, J. S., Baek, M. H., Yoo, J. C. and Kwon, S. T. (2003) Effects of low dose ${\gamma}$ irradiation on physiological activities of radish (Raphanus sativus) during early growth and reduction of ultraviolet-B stress, Kor. J. Horti. Sci. 44, 314-320

Niels, W. H. and Roger, J. B. (1970) Manual on Radiation Dosimetry, Mard Dekker Inc., New York

Maribel, L., Dionisio, S. and Satoshi, T. (1998) Antioxidant responses of rice seedlings to salinity stress, Plant Sci. 135, 1-9 crossref(new window)

Barr, H. D. and Weatherley, P. E. (1962) A reexamination of the relative turgidity technique for estimating water deficit in leaves, Aust. J. Biol. Sci. 15, 413-428

Chuan, C. L. and Ching, H. K. (1996) Proline accumulation is associated with inhibition of rice seedling root growth caused by NaCl, Plant Sci. 114, 121-128 crossref(new window)

Aeschxbacher, R. A., Schiefelbein, J. W. and Benfey, P. N. (1994) The genetic and molecular basis of root development, Ann. Rev. of Plant Physiol. and Plant Mol. BioI. 45, 25-45 crossref(new window)

Yeo, A. R. and Flowers. T. J. (1982) Accumulation and localization of sodium ions within the shoots of rice (Oryza sativa L.) varieties differing in salinity resistance, Physiol. Plant 56, 189-195 crossref(new window)

Hwangbo, J. K, Kim, J. S., Lim, J. H., Baek, M. H. and Chung, B. Y. (2003) Alterations in seed vigour and viability of soybean related with accelerated seed aging and low dose gamma irradiation, Kor. J. Crop Sci. 48, 334-338

Kim, J. S., Lee, E. K., Song, J. Y., Kim, H. K. and Lee, Y. B. (2000) Induction of resistance against Phyphthora Blight of pepper by low dose gamma ray radiation, Kor. J. Environ. Biol. 18, 47-51

Dubey, R. S. (1994) Protein synthesis by plants under stressful conditions, In: M. Pessarakli (Ed), Handbook of Plant a Crop Stress, Marcel Dekker, New York. pp 277-299

Shin, S. H. (2002) Physiological and anatomical characteristics of salt-tolerance of rice (Oryza sativa L.) varieties, Ph.D. Thesis, Chonnam National University, Kwangju

Gadallah, M. A. A. (1999) Effect of proline and glycine-betain on Vicia faba responses to salt stress, Biol. Plant. 42, 247-279 crossref(new window)