Kinetics of root ion absorption affected by environmental factors and transpiration I. Measurement system for intact roots

Yuki Sago, Daisuke Yasutake, Kota Hidaka, Eriko Yasunaga, Toshihiko Eguchi, Satoshi Yoshida, Kitano Masaharu

研究成果: ジャーナルへの寄稿記事

9 引用 (Scopus)

抄録

For sustainable production of high-quality plants, information about kinetics of root absorptive functions responding to change in environmental condition is essential. A system for measuring rates of water absorption, ion absorption and respiration in intact roots was developed, and the system performance was found to be reliable with a relative error less than 3.5% and applicable under different root zone temperatures and dissolved O2 concentrations. Furthermore, the simultaneous measurements of rates of water and ion absorption enabled the evaluation of ion concentration in the xylem sap. The root absorptive functions were enhanced with increase in root zone temperature, and root respiration was depressed by the low dissolved O 2 under the high root zone temperature of 35°C. In addition, the absorbed water diluted the xylem sap, and this dilution effect on the concentration of each ion in the xylem sap appeared in different patterns. These results suggest that the system developed is applicable for the analyses of the absorptive functions of intact roots responding to change in environmental condition.

元の言語英語
ページ(範囲)23-31
ページ数9
ジャーナルEnvironmental Control in Biology
49
発行部数1
DOI
出版物ステータス出版済み - 10 14 2011

Fingerprint

root zone temperature
transpiration
sap
ions
xylem
kinetics
environmental factors
water uptake
water

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Plant Science

これを引用

@article{ea130ca0ac6844878b1e975d5dfe8128,
title = "Kinetics of root ion absorption affected by environmental factors and transpiration I. Measurement system for intact roots",
abstract = "For sustainable production of high-quality plants, information about kinetics of root absorptive functions responding to change in environmental condition is essential. A system for measuring rates of water absorption, ion absorption and respiration in intact roots was developed, and the system performance was found to be reliable with a relative error less than 3.5{\%} and applicable under different root zone temperatures and dissolved O2 concentrations. Furthermore, the simultaneous measurements of rates of water and ion absorption enabled the evaluation of ion concentration in the xylem sap. The root absorptive functions were enhanced with increase in root zone temperature, and root respiration was depressed by the low dissolved O 2 under the high root zone temperature of 35°C. In addition, the absorbed water diluted the xylem sap, and this dilution effect on the concentration of each ion in the xylem sap appeared in different patterns. These results suggest that the system developed is applicable for the analyses of the absorptive functions of intact roots responding to change in environmental condition.",
author = "Yuki Sago and Daisuke Yasutake and Kota Hidaka and Eriko Yasunaga and Toshihiko Eguchi and Satoshi Yoshida and Kitano Masaharu",
year = "2011",
month = "10",
day = "14",
doi = "10.2525/ecb.49.23",
language = "English",
volume = "49",
pages = "23--31",
journal = "Environmental Control in Biology",
issn = "1880-554X",
publisher = "Japanese Society of Agricultural, Biological and Environmental Engineers and Scientists (JASBEES)",
number = "1",

}

TY - JOUR

T1 - Kinetics of root ion absorption affected by environmental factors and transpiration I. Measurement system for intact roots

AU - Sago, Yuki

AU - Yasutake, Daisuke

AU - Hidaka, Kota

AU - Yasunaga, Eriko

AU - Eguchi, Toshihiko

AU - Yoshida, Satoshi

AU - Masaharu, Kitano

PY - 2011/10/14

Y1 - 2011/10/14

N2 - For sustainable production of high-quality plants, information about kinetics of root absorptive functions responding to change in environmental condition is essential. A system for measuring rates of water absorption, ion absorption and respiration in intact roots was developed, and the system performance was found to be reliable with a relative error less than 3.5% and applicable under different root zone temperatures and dissolved O2 concentrations. Furthermore, the simultaneous measurements of rates of water and ion absorption enabled the evaluation of ion concentration in the xylem sap. The root absorptive functions were enhanced with increase in root zone temperature, and root respiration was depressed by the low dissolved O 2 under the high root zone temperature of 35°C. In addition, the absorbed water diluted the xylem sap, and this dilution effect on the concentration of each ion in the xylem sap appeared in different patterns. These results suggest that the system developed is applicable for the analyses of the absorptive functions of intact roots responding to change in environmental condition.

AB - For sustainable production of high-quality plants, information about kinetics of root absorptive functions responding to change in environmental condition is essential. A system for measuring rates of water absorption, ion absorption and respiration in intact roots was developed, and the system performance was found to be reliable with a relative error less than 3.5% and applicable under different root zone temperatures and dissolved O2 concentrations. Furthermore, the simultaneous measurements of rates of water and ion absorption enabled the evaluation of ion concentration in the xylem sap. The root absorptive functions were enhanced with increase in root zone temperature, and root respiration was depressed by the low dissolved O 2 under the high root zone temperature of 35°C. In addition, the absorbed water diluted the xylem sap, and this dilution effect on the concentration of each ion in the xylem sap appeared in different patterns. These results suggest that the system developed is applicable for the analyses of the absorptive functions of intact roots responding to change in environmental condition.

UR - http://www.scopus.com/inward/record.url?scp=80053930188&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80053930188&partnerID=8YFLogxK

U2 - 10.2525/ecb.49.23

DO - 10.2525/ecb.49.23

M3 - Article

VL - 49

SP - 23

EP - 31

JO - Environmental Control in Biology

JF - Environmental Control in Biology

SN - 1880-554X

IS - 1

ER -