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Sci Total Environ

Title:		"Broad spectrum and species specificity of plant allelochemicals 1,2-benzenediol and 3-indoleacrylic acid against marine and freshwater harmful algae"
Author(s):		Hu J; Effiong K; Liu M; Xiao X;
Address:		"Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, China; Key Laboratory of Marine Ecological Monitoring and Restoration Technologies of Ministry of Natural Resources, Shanghai 201206, China. Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, China; Key Laboratory of Marine Ecological Monitoring and Restoration Technologies of Ministry of Natural Resources, Shanghai 201206, China; Department of Marine Biology, Akwa Ibom State University (AKSU), P.M.B 1157, Uyo, Akwa Ibom State, Nigeria. Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, China. Department of Marine Science, Ocean College, Zhejiang University, Zhoushan 316021, China; Key Laboratory of Marine Ecological Monitoring and Restoration Technologies of Ministry of Natural Resources, Shanghai 201206, China; Donghai Laboratory, Zhoushan, Zhejiang 316021, China; Key Laboratory of Watershed Non-point Source Pollution Control and Water Eco-security of Ministry of Water Resources, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China. Electronic address: xi@zju.edu.cn"
Journal Title:		Sci Total Environ
Year:		2023
Volume:		20230816
Issue:
Page Number:		166356 -
DOI:		10.1016/j.scitotenv.2023.166356
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"Allelochemicals derived from plants have shown great potential in mitigating harmful algal blooms (HABs), although different algal species can respond differently to these chemicals. Therefore, we first investigated the allelopathic effects of two newly identified plant-derived allelochemicals, 1,2-benzenediol (1,2-BD) and 3-indoleacrylic acid (3-IDC), on six algal species. Then we further evaluated the allelopathic responses of two bloom-forming species, Microcystis aeruginosa FACHB-905 and Heterosigma akashiwo to 1,2-BD. Results showed that 1,2-BD had a broader antialgal spectrum than 3-IDC. Allelopathic response analysis indicated that 1,2-BD consistently and stably inhibit the growth of M. aeruginosa FACHB-905, with inhibitory mechanism being disruption of photosynthetic activity, overwhelming of the antioxidant system and activation of programmed cell death (PCD). H. akashiwo displayed resistance to 1,2-BD during exposure, and the growth inhibition was mainly attributed to PCD. Therefore, the species-specific allelopathic responses provide new insights for controlling HABs using 1,2-BD and 3-IDC"
Keywords:		*Pheromones/toxicity Species Specificity *Harmful Algal Bloom Fresh Water Allelopathy Bioremediation Coastal management Harmful algal blooms;
Notes:		"MedlineHu, Jing Effiong, Kokoette Liu, Muyuan Xiao, Xi eng Netherlands 2023/08/19 Sci Total Environ. 2023 Nov 10; 898:166356. doi: 10.1016/j.scitotenv.2023.166356. Epub 2023 Aug 16"