Influences of Natural Fibrous Root Decay on Growth and Active Component Content of Paris polyphylla var. yunnanensis
10.13422/j.cnki.syfjx.20211218
- VernacularTitle:须根自然腐解对滇重楼生长及其活性成分含量的影响
- Author:
Shun-xin ZHAO
1
;
Zu-chen WEI
1
;
Hai-ling LI
2
;
Jing-jing ZHAO
1
;
Dong-qin GUO
1
;
Nong ZHOU
1
Author Information
1. Chongqing Engineering Laboratory for Green Cultivation and Deep Processing of Three Gorges Reservoir Area´s Medicinal Herbs，College of Food and Biological Engineering， Chongqing Three Gorges University，Chongqing 404120，China
2. College of Pharmacy，Dali University，Dali 671000，China
- Publication Type:Research Article
- Keywords:
Paris polyphylla var. yunnanensis;
fibrous root decay;
continuous cropping obstacle;
infection rate;
physiological and biochemical;
active components
- From:
Chinese Journal of Experimental Traditional Medical Formulae
2021;27(20):138-144
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the effect of natural decay of exogenously added fibrous roots on the growth and development of Paris polyphylla var. yunnanensis and its medicinal quality. Method:The effects of natural decay of fibrous roots at different amounts on mycorrhizal infection rate， physiological and biochemical indexes， and saponin contents of P. polyphylla var. yunnanensis were studied in pot culture experiments at room temperature. Result:The results showed that the infection rate of arbuscular mycorrhizal （AM） fungi in the root of P. polyphylla var. yunnanensis was not significantly affected by different fibrous root treatments， but there were significant differences in infection intensity. The photosynthetic pigment content in the leaves declined significantly with the increase in fibrous root amount， and the total chlorophyll was decreased by 78.7% at most. The contents of soluble protein， soluble sugar and malondialdehyde in the leaves of P. polyphylla var. yunnanensis showed an overall upward trend. The activities of the three protective enzymes varied. The peroxidase and malondialdehyde were reduced by 181.6% and 200.0% at most. In the root system of P. polyphylla var. yunnanensis， the contents of the above-mentioned six components decreased to varying degrees， with the largest reductions of peroxidase and malondialdehyde reaching 44.6% and 69.7%. Different fibrous root treatments resulted in a decrease in active component content of P. polyphylla var. yunnanensis. The total content of the four saponins was decreased by 58.9% at most， and the total saponin content by 46.9%. Conclusion:The natural decay of fibrous roots affects the soil microbial environment of root system， reduces the photosynthetic pigment content in leaves， and destroys the stability of cells， thus interfering with the growth and development of P. polyphylla var. yunnanensis， reducing its medicinal components， and causing continuous cropping obstacles.
