Localization and dynamic change of saponins in Cyclocarya paliurus (Batal.) Iljinskaja


Autoři: Xiaoling Chen aff001;  Yu Wang aff001;  Hu Zhao aff001;  Xiangxiang Fu aff001;  Shengzuo Fang aff001
Působiště autorů: College of Forestry, Nanjing Forestry University Southern Modern Forestry Collaborative Innovation Centre, Nanjing Forestry University, Nanjing, China aff001
Vyšlo v časopise: PLoS ONE 14(10)
Kategorie: Research Article
doi: 10.1371/journal.pone.0223421

Souhrn

Cyclocarya paliurus is a unique tree species of that grows in southern China. The tree contains distinctive saponins in the leaf that has hypoglycemic and hypolipidemic effects. It was aimed to detect localization of saponins and suitable time of harvest for medicinal uses. Histochemical, cytochemical localization and UV-spectrophotometry were carried out in C. paliurus plant. We found that in all organs, the saponins were primarily located in the parenchyma cells and the highest saponins accumulation was in the palisade tissue in leaves. Cytochemical localization results indicated that saponins were mainly distributed in the chloroplast, vesicle, and plasmalemma. On average, the total saponins content in leaves (20.57 mg·g-1) was two and three times greater than in root (10.19 mg·g-1) and shoot (6.20 mg·g-1), respectively. Moreover, the saponins content in the leaf and root exhibited fluctuations, which were highest in September. Considering saponins levels and biomass, we conclude that harvesting all leaves in September is an economical and effective strategy for medicinal use in C. paliurus.

Klíčová slova:

Epidermis – Chloroplasts – Leaves – Medicinal plants – Vesicles – Phloem – Cytochemistry – Xylem


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Článek vyšel v časopise

PLOS One


2019 Číslo 10