Correlation between root respiration and the levels of biomass and glycyrrhizic acid in Glycyrrhiza uralensis

  • Authors:
    • Wenlan Liu
    • Zhirong Sun
    • Jixu Qu
    • Chunning Yang
    • Xiaomin Zhang
    • Xinxin Wei
  • View Affiliations

  • Published online on: July 9, 2017     https://doi.org/10.3892/etm.2017.4723
  • Pages: 2323-2328
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Abstract

The aim of the present study was to investigate the correlation between root respiration and the levels of biomass and glycyrrhizic acid in Glycyrrhiza uralensis. Root respiration was determined using a biological oxygen analyzer. Respiration‑related enzymes including glucose‑6‑phosphate dehydrogenase plus 6‑phosphogluconate dehydrogenase, phosphohexose isomerase and succinate dehydrogenase, and respiratory pathways were evaluated. Biomass was determined by a drying‑weighing method. In addition, the percentage of glycyrrhizic acid was detected using high‑performance liquid chromatography. The association between root respiration and the levels of biomass and glycyrrhizic acid was investigated. The glycolysis pathway (EMP), tricarboxylic acid cycle (TCA) and pentose phosphate (PPP) pathway acted concurrently in the roots of G. uralensis. Grey correlation analysis showed that TCA had the strongest correlation (correlation coefficient, 0.8003) with biomass. Starch and acetyl coenzyme A had the closest association with above‑ground biomass, while soluble sugar correlated less strongly with above‑ground biomass. Grey correlation analysis between biochemical pathways and the intermediates showed that pyruvic acid had the strongest correlation with EMP, while acetyl coenzyme A correlated most strongly with TCA. Among the intermediates and pathways, pyruvic acid and EMP exhibited the greatest correlation with glycyrrhizic acid, while acetyl coenzyme A and TCA correlated with glycyrrhizic acid less closely. The results of this study may aid the cultivation of G. uralensis. However, these results require verification in further studies.

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September-2017
Volume 14 Issue 3

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Liu W, Sun Z, Qu J, Yang C, Zhang X and Wei X: Correlation between root respiration and the levels of biomass and glycyrrhizic acid in Glycyrrhiza uralensis. Exp Ther Med 14: 2323-2328, 2017
APA
Liu, W., Sun, Z., Qu, J., Yang, C., Zhang, X., & Wei, X. (2017). Correlation between root respiration and the levels of biomass and glycyrrhizic acid in Glycyrrhiza uralensis. Experimental and Therapeutic Medicine, 14, 2323-2328. https://doi.org/10.3892/etm.2017.4723
MLA
Liu, W., Sun, Z., Qu, J., Yang, C., Zhang, X., Wei, X."Correlation between root respiration and the levels of biomass and glycyrrhizic acid in Glycyrrhiza uralensis". Experimental and Therapeutic Medicine 14.3 (2017): 2323-2328.
Chicago
Liu, W., Sun, Z., Qu, J., Yang, C., Zhang, X., Wei, X."Correlation between root respiration and the levels of biomass and glycyrrhizic acid in Glycyrrhiza uralensis". Experimental and Therapeutic Medicine 14, no. 3 (2017): 2323-2328. https://doi.org/10.3892/etm.2017.4723