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ARTICLE

Mycorrhizal Fungal Effects on Growth, Antioxidant Capacity, and Medicine Quality of Paris polyphylla var. yunnanensis

Nong Zhou^1,2, Lingfeng Xu¹, Min Yang², Dongqin Guo¹, Qiuxia Gan, Jingjing Zhao^1,*

1 Chongqing Engineering Laboratory of Green Planting and Deep Processing of Famous-region Drug in the Three Gorges Reservoir Region, College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing, 404120, China
2 College of Chemistry and Pharmaceutical Sciences, Dali University, Dali, 671000, China

* Corresponding Author:* Correspondence Author: Jingjing Zhao. Email:

(This article belongs to the Special Issue: Mycorrhizal Fungi and Sustainable Development of Agriculture)

Phyton-International Journal of Experimental Botany 2021, 90(3), 747-759. https://doi.org/10.32604/phyton.2021.014858

Received 03 November 2020; Accepted 07 December 2020; Issue published 30 March 2021

Abstract

A field experiment was conducted to determine the effects of two commercial strains composed of mulple arbuscular mycorrhizal fungi (AMF) species on plant growth, antioxidant capacity, and medicine quality of Paris polyphylla var. yunnanensis in three subtropical soils from Wanzhou, Anshun and Baoshan in fields. The results showed that AMF inoculation enhanced the fungal colonization rate and activities of both succinate dehydrogenase and alkaline phosphatase, thereby, enhancing the mycorrhizal viability of P. polyphylla var. yunnanensis. The concentrations of photosynthetic pigments (chlorophyll a, b, a+b and carotenoids), soluble sugar, soluble protein and photosynthetic capacity were higher in AMF-inoculated plants than in non-AMF-treated plants in field. AMFtreated plants recorded higher activities of catalase, peroxidase and superoxide dismutase, and caused the reduction in malondialdehyde content, indicating lower oxidative damage, compared with non-AMF plants. Polyphyllin I, Polyphyllin II, Polyphyllin III, Polyphyllin IV and total polyphyllin contents were increased by AMF treatment. In conclusion, AMF improved the plant growth, antioxidant capacity and medicinal quality of P. polyphylla var. yunnanensis seedlings. Hereinto, AMF effects on the soil from Wanzhou was relatively greater than on other soils.

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