Environmental and Physiological Studies on Measurement and Optimization of Root absorption and Translocation in Plants.

植物根吸收和易位测量和优化的环境和生理研究。

• 批准号: 14360154
• 负责人: KITANO Masaharu
• 金额: $ 8.9万
• 依托单位: Kochi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14360154/
• 关键词: roots; root absorption; translocation; fruits; phloem; xylem; environmental stress; plant instrumentation; 師部; 塩ストレス; 高温ストレス; 物質集積; 木部; ソース・シンク; トマト; ソースーシンク

The aim of this research is to newly develop the methodologies for evaluating functions of mass absorption in intact roots and mass accumulation into fruits and to analyze mechanisms of environmental effects on these functions from the point of view of optimization of transport phenomena in the plant-environment system. The main results obtained from 2002 to 2004 are summarized below :1.In the NFT liquid culture system, the new methodology was established for measurements of uptake rates of water and each inorganic ion and concentrations of the respective ions in.xylem sap in intact roots, and short term and long term effects of the high root temperature stress and effect of the short term salt stress were elucidated.2.Evaluations of fluxes of mass (sap, and soluble solids) into a tomato fruit via phloem and concentrations of soluble solids in the phloem sap were enabled, and effects of salt stress and water stress on mass accumulation into tomato fruits were analyzed with special reference to osmoregulation in phloem transport.3.The cooperative application of the high pressure flow meter and the pressure tank for intact root system of a whole plant enabled quantitative analyses of characteristics of root absorption under various root environments.4.A new method for evaluation of transpiration from plant canopy in a field was developed on the basis of stomatal closure by applying abscisic acid (ABA) to plants.5.By applying the new methodologies developed above, it was verified, for example, that the short-term salt stress treatment with the concentrated deep seawater at the stage of rapid fruit growth of tomato plants can induce the osmoregulation in phloem transport and results in production of high quality tomatoes enriched in sugar, acid, minerals and good flavor.

本研究旨在从植物-环境系统运输现象优化的角度出发，建立完整根系质量吸收和果实质量积累功能的评价方法，并分析环境对这些功能的影响机制。2002 - 2004年的主要研究成果总结如下：在NFT液体培养系统中，建立了新的方法来测量水和每种无机离子的吸收率以及各自离子的浓度。阐明了高温胁迫下完整根系木质部液量的短期和长期影响以及短期盐胁迫的影响。研究了通过韧皮部向番茄果实输送的物质（汁液和可溶性固形物）和韧皮部汁液中可溶性固形物的浓度，并分析了盐胁迫和水分胁迫对番茄果实中物质积累的影响，特别参考了韧皮部运输中的渗透调节。高压流量计与全株完整根系压力罐的协同应用，可以定量分析不同根系环境下根系吸收特性。提出了一种基于植物气孔关闭原理，利用脱落酸（ABA）测定植物冠层蒸腾量的新方法。应用上述新方法，验证了在番茄植株果实快速生长阶段，用浓深海水进行短期盐胁迫处理，可以诱导韧皮部运输的渗透调节，从而生产出富含糖、酸、矿物质和良好风味的优质番茄。

项目成果

海洋深層水の施設栽培への利用に関する研究

海洋深层水设施养殖利用研究

• 发表时间: 2004
• 期刊: 高知大学地域共同研究センター研究成果報告書 9
• 作者: 福元康文;西村安代;島崎一彦;福元康文
• 通讯作者: 福元康文

北野雅治: "中国・四国地域の農業気象"農林統計協会. 219 (2003)

北野正治：“中国和四国地区的农业气象”农林统计协会219（2003）。

High temperature effect on root absorption.

高温影响根部吸收。

• 发表时间: 2005
• 期刊: J.Agric.Meteorol. 60
• 作者: Wajima;T.;Kitano;M.;Araki;T.;Jun;Y.;Ishikawa;K.;Matsuoka;T;M.Affan F.F.
• 通讯作者: M.Affan F.F.

中国・四国地域の農業気象

中国和四国地区的农业天气

• 发表时间: 2003
• 作者: 北野雅治

サツマイモ塊根の肥大に対する根温の影響-直接的および間接的な温度の影響-

根部温度对甘薯块茎膨大的影响 - 温度的直接和间接影响 -

• 发表时间: 2003
• 期刊: 生物環境調節 41
• 作者: 江口壽彦ら