한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)

  • 제51권4호
  • /
  • Pages.295-297
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  • 2006
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  • 0252-9777(pISSN)
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  • 2287-8432(eISSN)
한국작물학회 (The Korean Society of Crop Science)
권호 표지

Potassium Distribution in the Apical Region of Rice Root

  • Rehman Shafiq (Division of Biological Resources Science, and Institute of Agricultural Science and Technology, Chonbuk National University) ;
  • Park Moung-Ryoul (Division of Biological Resources Science, and Institute of Agricultural Science and Technology, Chonbuk National University) ;
  • Ashraf Muhammad (Botany Department, University of Agriculture Faisalabad) ;
  • Yun Song-Joong (Division of Biological Resources Science, and Institute of Agricultural Science and Technology, Chonbuk National University)
  • 발행 : 2006.09.01
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초록

Potassium (K) distribution in rice (Oryza sativa L.) root was studied by confocal laser microscopy, using potassium sensitive fluorescent dye potassium-binding benzofuran isophthalate (PBFI). Significantly high intensity of K-specific fluorescence was detected at the root cap region followed by meristematic and basal regions. A negligible or fainted fluorescence was observed at the root hairs area. These results suggest that K is heavily distributed in the apical area of rice root, which may be required in higher concentration for division and extension of cells, as it is the rapidly growing region of the root, moreover, may also be involved in water uptake by creating osmotic gradient across membranes.

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참고문헌

  1. Fischer, R. A. 1971. Role of potassium in stomatal opening in the leaf of Vicia faba, Plant Physiol. 47 : 555-558 https://doi.org/10.1104/pp.47.4.555
  2. Flowers, T. J. and A. Lauchli. 1983. Sodium versus potassium: Substitution and Compartmentation, in Lauchli, A., Bieski, R. L. eds: Inorganic Plant Nutrition, pp. 651-675, Springer-Verlag, Berlin
  3. Halperin, S. J. and J. P. Lynch. 2003. Effects of salinity on cytosolic $Na^+\;and\;K^+$ in root hairs of Arabidopsis thaliana in vitro measurements using the fluorescent dyes SBFI and PBFI. J. Exp. Bot. 54 : 2035-2043 https://doi.org/10.1093/jxb/erg219
  4. Kasner, S.E. and M.B. Ganz. 1992. Regulation of intracellular potassium in mesangial cells: a fluorescence analysis using the dye, PBFI. Am. J. Physiol. 262 : 462-467
  5. Leigh, R. A. and R. G. Wyn Jones. 1984. A hypothesis relating critical potassium concentrations for growth to the distribution and functions of this ion in the plant cell. New Phytol. 97 : 1-13 https://doi.org/10.1111/j.1469-8137.1984.tb04103.x
  6. Leigh, R.A. and R. Storey. 1991. Nutrient compartmentation in cells and its relevance to the nutrition of the whole plant,. in Porter, J. R., Lawlor, D. W. eds: Plant Growth: Interactions with Nutrition and Environment pp. 33-55, Cambridge University Press, Cambridge
  7. Marschner, H. 1995. Mineral nutrition of higher plants. Academic Press, Harcourt Brace & Company, Publishers
  8. Morita, S. and K. Nemoto. 1995. Morphology and anatomy of rice roots with special reference to coordination in organo- and histogenesis, in Baluska., F., Ciamporova, M., Gasparikova, O., Barlow, P. W. eds: Structure and Function of Roots, pp. 75-86, Kluwer Academic Publishers
  9. Moore, R., W. D. Clark, and K.R. Stern. 1995. Botany. Wm. C. Brown Publishers. Boston, USA
  10. Pineda-Vargas, C. A., V. M. Prozesky, W. J. Przbylowicz, and J. E. Mayer. 2001. Correspondence analysis evaluation of linear nutrient distribution in root tips of the tropical forage Brachiaria brizantha. Nucl. Instr. Meth. B 130: 362-367 https://doi.org/10.1016/S0168-583X(97)00347-9
  11. Rehman, S., N. H. Yoo, M. R. Park, and S. J. Yun. 2005. Confocal potassium imaging: Giving new insight into potassium concentrated at the aperture area of barley (Hordeum vulgare L.) pollen. Plant Sci. 169 : 457-459 https://doi.org/10.1016/j.plantsci.2005.04.012
  12. Rehman, S. and S. J. Yun. 2006. Developmental regulation of K accumulation in pollen, anther, and papillae: Are anther dehiscence, papillae hydration and pollen swelling leading to pollination and fertilization in barley (Hordeum vulgare L.) regulated by changes in K concentration? J. Expt. Bot. 57: 1315-1321 https://doi.org/10.1093/jxb/erj106
  13. Russel, R. S. 1977. Plant root systems: Their function and interaction with the soil. The English Language Book Society and McGraw-Hill Book Company (UK) Limited