Polygonum

About: Polygonum is a research topic. Over the lifetime, 1230 publications have been published within this topic receiving 12765 citations.

Influence of specification on chemical composition of dissolution and hepatocytes toxicity of Polygonum multiflorum

Abstract: According to different toxicities of various aqueous extracts of Polygonum multiflorum on hepatocyte, the impacts of chemical composition on the safety of P. multiforum was studied. In this study, 8 main chemical compositions in aqueous extracts of P. multiflorum were determined by the established HPLC method; at the same time, the inhibition ratios of different aqueous extracts of P. multiflorum on L02 cell were determined. Afterwards, the potential compounds related to the toxicity of P. multiforum were tentatively found through a multiple correlation analysis. The results showed that P. multiforum with different chemical compositions exhibited great differences in dissolution. The hepatocyte toxicity of P. multiflorum powder was much greater than P. multiflorum lumps. In addition, three constituents closely related to toxicity of P. multiflorum were found by multiple correlation analysis. The study revealed that chemical composition of P. multiflorum is closely related to the hepatotoxicity, and the hepatotoxicity of P. multiflorum powder is greater than that of other dosage forms. This study indicates that P. multiflorum with different chemical compositions show varying toxicity, which therefore shall be given high attention.

Effect of explant type and genotype on the accumulation of bioactive compounds in adventitious root cultures of Polygonum multiflorum

Abstract: The correlation between growth and accumulation of bioactive compounds was investigated in six genotypes of Polygonum multiflorum, grown in vitro, soil-grown (ex vitro), and as adventitious root cultures. Adventitious roots were induced on leaf and root explants from plantlets of the six genotypes grown in vitro. Line PM-06 achieved the highest biomass in vitro (0.91 g plant−1 FW; 0.1 g plant−1 (DW)), whereas line PM-05 produced the highest biomass ex vitro (54.67 g plant−1 FW; 12.93 g plant−1 DW). A comparison of the six lines found that total phenolic content (TPC) and total flavonoid content (TFC) were highest in roots from line PM-01 grown in vitro, but line PM-06 produced the highest levels of bioactive compounds in tubers (99.06 mg g−1 DW TPC; 42.31 mg g−1 DW TFC), which were 2.5-fold, 5.0-fold, and 4.8-fold higher than the highest levels produced by in vitro roots, in vitro shoots, and ex vitro shoots, respectively. Although adventitious root line AR-06 produced the greatest overall biomass (60.12 g L−1 FW; 6.36 g L−1 DW), bioactive content was highest in line AR-01 (50.35 mg g−1 DW TPC; 22.51 mg g−1 TFC). There was a strong correlation between phenolic production in plant roots grown in vitro and adventitious root lines, and plant roots grown ex vitro and adventitious root lines. Adventitious root cultures of P. multiflorum line AR-06 showed great potential for producing phenolic compounds. Such cultures may therefore provide an alternative to naturally grown plants as a potential biomass source for the production of bioactive compounds.