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Alleviation of Drought Stress in Wheat Using Exogenous Ulva prolifera Extract Produced by Enzymatic Hydrolysis

Feiyu Li1, Siqi Zuo1, Yongzhou Chi1, Chunying Du1, Zhaopeng Shen1, Xihong Han2,3, Xiaohui Wang2,*, Peng Wang1,*

1 College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
2 Ministry of Agriculture Key Laboratory of Seaweed Fertilizers, Qingdao Brightmoon Seaweed Group Co. Ltd., Qingdao, 266400, China
3 State Key Laboratory of Bioactive Seaweed Substances, Qingdao, 266400, China

* Corresponding Authors: Xiaohui Wang. Email: email; Peng Wang. Email: email

(This article belongs to this Special Issue: Renewable materials for sustainable development)

Journal of Renewable Materials 2020, 8(11), 1519-1529.


Drought is one of the major abiotic stresses that affect plant growth and reduce agricultural productivity. Use of algal extract as a biostimulant is gaining increased attention from researchers. This study aimed to investigate the potential of Ulva prolifera extract (UE) as a biostimulant when enzymatically extracted under conditions of water deficit. UE treatments (0.02%, 0.06%, and 0.1%) significantly improved the shoot length, root length, and dry weight of roots after 120 h of drought stress relative to that in treatment with the negative control. An increase in catalase (CAT) and peroxidase (POD) activity was also observed that resulted in improved antioxidant capacity. Application of 0.1% UE reduced the malondialdehyde (MDA) content by 30.06% compared with that in the negative control. In addition, the soluble sugar and protein content in wheat treated with 0.1% UE was increased by 23.10% and 93.51%, respectively, resulting in adjustment of the osmotic pressure. Results suggest that UE could significantly enhance the drought tolerance of wheat. This study provides a basis for increasing the value of UE as a biostimulant.


Cite This Article

Li, F., Zuo, S., Chi, Y., Du, C., Shen, Z. et al. (2020). Alleviation of Drought Stress in Wheat Using Exogenous Ulva prolifera Extract Produced by Enzymatic Hydrolysis. Journal of Renewable Materials, 8(11), 1519–1529.


cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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