Model of ion absorption of roots integrated with water absorption based on theory of enzyme kinetics

Y. Sago, Kitano Masaharu, K. Hidaka, Daisuke Yasutake

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

For environmentally conscious and highly profitable agriculture, it is necessary to optimize the nutrient application to crops. Ion absorption of roots is regulated by the function of transport proteins of cell membranes, which largely depends on ion concentrations in the root zone. Furthermore, environmental factors such as radiation can affect the ion absorption through change in transpiration (i.e. root water absorption). In this study, we propose a model of root ion absorption integrated with water absorption by modifying the theory of enzyme kinetics (i.e. Michaelis-Menten equation). Ion absorption rate in intact roots of Welsh onion (Allium fistulosum L.) was measured under different conditions of ion concentration, light intensity and consequently under different rates of root water absorption. The integration model proposed can represent well the rates of ion absorption affected by ion concentrations and water absorption. Furthermore, this integration model will be helpful for optimizing nutrient application.

Original languageEnglish
Title of host publicationXXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010)
Subtitle of host publicationInternational Symposium on Plant Physiology from Cell to Fruit Production System
EditorsJ.W Palmer, M. Herrero, I. Hormaza, D.S. Tustin, M. Talon, F.R. Tadeo, M. Chaves, A.D. Webster
Pages333-340
Number of pages8
Publication statusPublished - May 1 2012

Publication series

NameActa Horticulturae
Volume932
ISSN (Print)0567-7572

Fingerprint

enzyme kinetics
water uptake
ions
Japanese bunching onions
Allium fistulosum
transport proteins
nutrients
cell membranes
light intensity
transpiration
rhizosphere
agriculture
environmental factors
crops

All Science Journal Classification (ASJC) codes

  • Horticulture

Cite this

Sago, Y., Masaharu, K., Hidaka, K., & Yasutake, D. (2012). Model of ion absorption of roots integrated with water absorption based on theory of enzyme kinetics. In J. W. Palmer, M. Herrero, I. Hormaza, D. S. Tustin, M. Talon, F. R. Tadeo, M. Chaves, ... A. D. Webster (Eds.), XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on Plant Physiology from Cell to Fruit Production System (pp. 333-340). (Acta Horticulturae; Vol. 932).

Model of ion absorption of roots integrated with water absorption based on theory of enzyme kinetics. / Sago, Y.; Masaharu, Kitano; Hidaka, K.; Yasutake, Daisuke.

XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on Plant Physiology from Cell to Fruit Production System. ed. / J.W Palmer; M. Herrero; I. Hormaza; D.S. Tustin; M. Talon; F.R. Tadeo; M. Chaves; A.D. Webster. 2012. p. 333-340 (Acta Horticulturae; Vol. 932).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sago, Y, Masaharu, K, Hidaka, K & Yasutake, D 2012, Model of ion absorption of roots integrated with water absorption based on theory of enzyme kinetics. in JW Palmer, M Herrero, I Hormaza, DS Tustin, M Talon, FR Tadeo, M Chaves & AD Webster (eds), XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on Plant Physiology from Cell to Fruit Production System. Acta Horticulturae, vol. 932, pp. 333-340.
Sago Y, Masaharu K, Hidaka K, Yasutake D. Model of ion absorption of roots integrated with water absorption based on theory of enzyme kinetics. In Palmer JW, Herrero M, Hormaza I, Tustin DS, Talon M, Tadeo FR, Chaves M, Webster AD, editors, XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on Plant Physiology from Cell to Fruit Production System. 2012. p. 333-340. (Acta Horticulturae).
Sago, Y. ; Masaharu, Kitano ; Hidaka, K. ; Yasutake, Daisuke. / Model of ion absorption of roots integrated with water absorption based on theory of enzyme kinetics. XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on Plant Physiology from Cell to Fruit Production System. editor / J.W Palmer ; M. Herrero ; I. Hormaza ; D.S. Tustin ; M. Talon ; F.R. Tadeo ; M. Chaves ; A.D. Webster. 2012. pp. 333-340 (Acta Horticulturae).
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