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Agronomy 2019, 9(3), 137; https://doi.org/10.3390/agronomy9030137

Growth, Secondary Metabolites and Enzyme Activity Responses of Two Edible Fern Species to Drought Stress and Rehydration in Northeast China

1,2,†, 1,2,†, 1,2,3, 1, 4, 1 and 1,2,3,*
1
Institute of Applied Ecology, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
2
University of Chinese Academy of Sciences, Beijing 101417, China
3
Key Laboratory of Forest Ecology and Management, Chinese Academy of Sciences, Shenyang 110016, China
4
Northest Yucai Bilingual School, Shenyang 110164, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Received: 13 February 2019 / Revised: 9 March 2019 / Accepted: 13 March 2019 / Published: 16 March 2019
(This article belongs to the Special Issue Functional Metabolism in Crops/Agronomy)
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Abstract

The drought resistance mechanism of Matteuccia struthiopteris (L.) Todar. and Athyrium multidentatum (Doll.) Ching were measured under natural drought exposure. The results showed that the two edible fern species showed stronger resistance in the early stages of drought, mainly expressed as the decrease of relative leaf water content (RLWC), increase of osmotic substances, secondary metabolites such as flavonoids (FC), total phenols (TPC), proantho cyanidins (PCC) content and enzyme activity (superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX)). The higher RLWC, FC, TPC, PCC and abscisic acid (ABA) content and lower H2O2 content indicates the stronger non-enzymatic antioxidant system and drought resistance of A. multidentatum. However, the proline (Pro) content changed slowly, and the synthesis of soluble protein (SP), total phenols, proantho cyanidins and ABA, SOD activity of two fern species were inhibited in the late stages of drought stress. This study can provide a scientific basis for the cultivation and utilization of edible fern species under forest in Northeast China. View Full-Text
Keywords: edible fern species; drought stress; rehydration; drought resistance; Northeast China edible fern species; drought stress; rehydration; drought resistance; Northeast China
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Wang, Y.; Gao, S.; He, X.; Li, Y.; Li, P.; Zhang, Y.; Chen, W. Growth, Secondary Metabolites and Enzyme Activity Responses of Two Edible Fern Species to Drought Stress and Rehydration in Northeast China. Agronomy 2019, 9, 137.

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