한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제8권4호
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  • Pages.48-53
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  • 2010
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  • 1598-8430(pISSN)
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  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
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가속기 X선 영상기법을 이용한 애기장대 뿌리털의 물 흡수과정 가시화

Visualization of Water-uptake Process in Excised Roots of Arabidopsis using Synchrotron X-ray Imaging Technique

  • 투고 : 2010.12.10
  • 심사 : 2010.12.27
  • 발행 : 2010.12.31
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초록

Water-uptake through roots, is an essential process of the water flow in plants. Its visualization is very useful for understanding sap flow dynamics at whole plant level. In this study, the tips of Arabidopsis' root hairs were excised and exposed to repeated dehydration and rehydration processes. The water-refilling through individual xylem vessels was visualized using the synchrotron X-ray micro-imaging technique. The high temporal resolution ($2\;{\mu}m$) and beam intensity of the X-ray source allowed to acquisition of consecutive X-ray images of the water-refilling process up to 10 frames/sec. Various flow patterns were observed and the ascending speed of the water-air interfaces was analyzed. The relation between the water-rising height and ascending speed was also analyzed. The present results would provide better alternative for investigating sap flows in roots.

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참고문헌

  1. Caemmerer, S., Baker, N., 2007, “The Biology of Transpiration. From Guard Cells to Globe”, Plant Physiology, Vol. 143, pp. 3 https://doi.org/10.1104/pp.104.900213
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  3. Garrigues, E., Doussan, C., Pierret, A., 2006, “Water uptake by plant roots: I-formation and propagation of a water extraction”, Plant and Soil, Vol. 283, pp. 83-98 https://doi.org/10.1007/s11104-004-7903-0
  4. Windt, C., Gerkema, E., As, H.V., 2009, “Most water in the tomato truss is imported through the xylem, not the phloem: A nuclear magnetic resonance flow imaging study”, Plant Physiology, Vol. 151, pp. 830-842 https://doi.org/10.1104/pp.109.141044
  5. Lee, S.J., Kim, Y.M., 2008, “In vivo visualization of the water-refilling process in xylem vessels using X-ray micro-imaging”, Annals of Botany, Vol. 101, pp. 595-602 https://doi.org/10.1093/aob/mcm312
  6. Lee, S.J., Kim, Y.M., 2003, “In vivo visualization of flow in xylem vessels of a bamboo leaf using synchrotron X-ray micro-imaging technique”, Journal of KSME B, Vol. 27(11), pp. 1612-1617 https://doi.org/10.3795/KSME-B.2003.27.11.1612
  7. Lee, S.J., Kim, G.B., Kim, S., Kim, Y.M., 2005, “Development of X-ray PIV technique and its application”, Journal of the Korean Society of Visualization, Vol. 3(1), pp. 20-25
  8. Kim, H.K., Lee, S.J., 2010, “Synchrotron X-ray imaging for nondestructive monitoring of sap flow dynamics through xylem vessel elements in rice leaves”, New Phytologist, Vol. 188, Issue 4, pp. 1085-1098 https://doi.org/10.1111/j.1469-8137.2010.03424.x
  9. Ellerby, D.J., Ennos, A.R, 1998, “Resistances to fluid flow of model xylem vessels with simple and scalariform perforation plates”, Journal of Experimental Botany, Vol. 49(323), pp. 929-985

피인용 문헌

  1. A Study of the 3D Anatomical Structure Analysis of Leech Using Hard X-ray Micro Tomography by Synchrotron Radiation vol.16, pp.12, 2016, https://doi.org/10.5392/JKCA.2016.16.12.070