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Quantitative profiling of polar primary metabolites of two chickpea cultivars with contrasting responses to salinity
Journal article   Open access   Peer reviewed

Quantitative profiling of polar primary metabolites of two chickpea cultivars with contrasting responses to salinity

D.A. Dias, C.B. Hill, N.S. Jayasinghe, J. Atieno, T. Sutton and U. Roessner
Journal of Chromatography B, Vol.1000, pp.1-13
2015
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Abstract

This study reports a GC–QqQ–MS method for the quantification of forty-eight primary metabolites from four major classes (sugars, sugar acids, sugar phosphates, and organic acids) which can be applied to a number of biological systems. The method was validated in terms of linearity, reproducibility and recovery, using both calibration standards and real samples. Additionally, twenty-eight biogenic amines and amino acids were quantified using an established LC–QqQ–MS method. Both GC–QqQ–MS and LC–QqQ–MS quantitative methods were applied to plant extracts from flower and pod tissue of two chickpea (Cicer arietinum L.) cultivars differing in their ability to tolerate salinity, which were grown under control and salt-treated conditions. Statistical analysis was applied to the data sets using the absolute concentrations of metabolites to investigate the differences in metabolite profiles between the different cultivars, plant tissues, and treatments. The method is a significant improvement of present methodology for quantitative GC–MS metabolite profiling of organic acids and sugars, and provides new insights of chickpea metabolic responses to salinity stress. It is applicable to the analysis of dynamic changes in endogenous concentrations of polar primary metabolites to study metabolic responses to environmental stresses in complex biological tissues.

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Collaboration types
Domestic collaboration
Citation topics
2 Chemistry
2.211 Mass Spectrometry
2.211.990 Metabolomics
Web Of Science research areas
Biochemical Research Methods
Chemistry, Analytical
ESI research areas
Chemistry
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