Comparative metabolic profiling reveals secondary metabolites correlated with soybean salt tolerance

Wei Wu, Qing Zhang, Yanming Zhu, Hon Ming Lam, Zongwei CAI, Dianjing Guo*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

55 Citations (Scopus)


High-performance liquid chromatography-ultraviolet-electrospray ionization mass spectrometry (HPLC-UV-ESI-MS) and HPLC-ESI-MSn analysis methods were used for metabolic profiling and simultaneous identification of isoflavonoids and saponins in soybean seeds. Comparative targeted metabolic profiling revealed marked differences in the metabolite composition between salt-sensitive and salt-tolerant soybean varieties. Principle component analysis clearly demonstrated that it is possible to use secondary metabolites, for example, isoflavones and saponins, to discriminate between closely related soybean genotypes. Genistin and group B saponins were identified as the key secondary metabolites correlated with salt tolerance. These individual metabolites may provide additional insight into the salt tolerance and adaptation of plants.

Original languageEnglish
Pages (from-to)11132-11138
Number of pages7
JournalJournal of Agricultural and Food Chemistry
Issue number23
Publication statusPublished - 10 Dec 2008

Scopus Subject Areas

  • Chemistry(all)
  • Agricultural and Biological Sciences(all)

User-Defined Keywords

  • Isoflavonoid
  • Metabolic profiling
  • Soyasaponin
  • Soybean


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