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The role of amino acids in the long-distance transport of La and Y in the xylem sap of tomato

Citation

Wu, J and Wei, Z and Zhao, H and Li, H and Hu, F, The role of amino acids in the long-distance transport of La and Y in the xylem sap of tomato, Biological Trace Element Research, 129, (1-3) pp. 239-250. ISSN 1559-0720 (2009) [Refereed Article]

Copyright Statement

Copyright 2008 Humana Press Inc.

DOI: doi:10.1007/s12011-008-8277-6

Abstract

This study focuses on the role of amino acids in xylem sap of tomato grown in hydroponics in a medium supplemented with a series of concentration of La and Y. Eighteen amino acids in xylem saps were identified and measured by reversed-phase highperformance liquid chromatography. The main amino acids in xylem sap samples of the tomato are histidine, tryptophan, aspartic acid, and glutamic acid. The concentration of glutamic acid in xylem sap significantly increased in the La and Y treatment compared to the control. By analyzing the correlation between concentrations of amino acids and concentrations of La and Y in the xylem saps, we considered that the glutamic acid in xylem saps seemed to participate in the long-distance La and Y translocation processes, and histidine did not relate to xylem La and Y transport of tomato. The role of other amino acids which was excreted by tomato has not been demonstrated in the long-distance transport of La and Y in the xylem.

Item Details

Item Type:Refereed Article
Keywords:amino acids, xylem sap, La and Y
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Separation Science
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Wei, Z (Professor Zhenggui Wei)
ID Code:91144
Year Published:2009
Web of Science® Times Cited:5
Deposited By:Austn Centre for Research in Separation Science
Deposited On:2014-05-09
Last Modified:2014-06-16
Downloads:0

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