Effects of propiconazole on physiological and biochemical properties of Panax notoginseng and dietary risk assessment.
10.19540/j.cnki.cjcmm.20221203.101
- Author:
Zi-Xiu ZHENG
1
;
Li-Sha QIU
1
;
Kai ZHENG
1
;
Lan-Ping GUO
2
;
Xiu-Ming CUI
1
;
Hong-Juan NIAN
1
;
Ying-Cai LI
3
;
Shao-Jun HUANG
1
;
Ye YANG
1
Author Information
1. Faculty of Life Science and Technology, Kunming University of Science and Technology Kunming 650500, China Yunnan Provincial Key Laboratory of Panax notoginseng Kunming 650500, China.
2. National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China.
3. Kunming Institute of Food and Drug Control Kunming 650032, China.
- Publication Type:Journal Article
- Keywords:
Panax notoginseng;
dietary risk;
oxidative stress;
pesticide residues;
propiconazole
- MeSH:
Panax notoginseng/chemistry*;
Panax;
Antioxidants/pharmacology*;
Saponins/pharmacology*;
Glutathione;
Risk Assessment
- From:
China Journal of Chinese Materia Medica
2023;48(5):1203-1211
- CountryChina
- Language:Chinese
-
Abstract:
To study the residue and dietary risk of propiconazole in Panax notoginseng and the effects on physiological and bioche-mical properties of P. notoginseng, we conducted foliar spraying of propiconazole on P. notoginseng in pot experiments. The physiolo-gical and biochemical properties studied included leaf damage, osmoregulatory substance content, antioxidant enzyme system, non-enzymatic system, and saponin content in the main root. The results showed that at the same application concentration, the residual amount of propiconazole in each part of P. notoginseng increased with the increase in the times of application and decreased with the extension of harvest interval. After one-time application of propiconazole according to the recommended dose(132 g·hm~(-2)) for P. ginseng, the half-life was 11.37-13.67 days. After 1-2 times of application in P. notoginseng, propiconazole had a low risk of dietary intake and safety threat to the population. The propiconazole treatment at the recommended concentration and above significantly increased the malondialdehyde(MDA) content, relative conductivity, and osmoregulatory substances and caused the accumulation of reactive oxygen species in P. notoginseng leaves. The propiconazole treatment at half(66 g·hm~(-2)) of the recommended dose for P. ginseng significantly increased the activities of superoxide dismutase(SOD), peroxidase(POD), and catalase(CAT) in P. notoginseng leaves. The propiconazole treatment at 132 g·hm~(-2) above inhibited the activities of glutathione reductase(GR) and glutathione S-transferase(GST), thereby reducing glutathione(GSH) content. Proconazole treatment changed the proportion of 5 main saponins in the main root of P. notoginseng. The treatment with 66 g·hm~(-2) propiconazole promoted the accumulation of saponins, while that with 132 g·hm~(-2) and above propiconazole significantly inhibited the accumulation of saponins. In summary, using propiconazole at 132 g·hm~(-2) to prevent and treat P. notoginseng diseases will cause stress on P. notoginseng, while propiconazole treatment at 66 g·hm~(-2) will not cause stress on P. notoginseng but promote the accumulation of saponins. The effect of propiconazole on P. notoginseng diseases remains to be studied.
