| Title: | "Allelopathic effects of Ailanthus altissima extracts on Microcystis aeruginosa growth, physiological changes and microcystins release" |
| Author(s): | Meng P; Pei H; Hu W; Liu Z; Li X; Xu H; |
| Address: | "School of Environmental Science and Engineering, Shandong University, Jinan, China; College of Biological and Brewing Engineering, Taishan University, Taian, China. School of Environmental Science and Engineering, Shandong University, Jinan, China; Shandong Provincial Engineering Centre on Environmental Science and Technology, Shandong Province, Jinan, China. Electronic address: haiyanhup@126.com. School of Environmental Science and Engineering, Shandong University, Jinan, China; Shandong Provincial Engineering Centre on Environmental Science and Technology, Shandong Province, Jinan, China. College of Biological and Brewing Engineering, Taishan University, Taian, China. School of Environmental Science and Engineering, Shandong University, Jinan, China" |
| DOI: | 10.1016/j.chemosphere.2015.07.057 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "The use of allelochemicals has been proved an environmentally friendly and promising method to control harmful algal blooms. This study was conducted to explore the application potential of Ailanthus altissima (A. altissima) extracts in Microcystis aeruginosa (M. aeruginosa) control for the first time. Four treatments with A. altissima extractions (25mgL(-1), 50mgL(-1), 100mgL(-1), and 200mgL(-1) respectively) and a control group were built to investigate the effects of A. altissima on the growth, cellular microstructure and cell viability, physiological changes, and release of extracellular matters. Results showed that the cell density of M. aeruginosa was effectively inhibited by A. altissima extract, and the inhibition rates were dose-dependent within 5d. Especially for the treatment with 200mgL(-1) of extract, the inhibitory rates remains above 90% after 5d exposure. In addition, A. altissima effectively decreased the amount of extracellular cyanotoxin microcystins and destroyed the photosynthesis-related structure of algae cell during the experimental period. The results demonstrated the A. altissima extracts can be used as an effective and safe algicide to control algal blooms. However, it must be noted that specific compounds responsible for algicidal effect should be isolated and identified to explore inhibition mechanism of A. altissima in future study" |
| Keywords: | "Ailanthus/*chemistry Dose-Response Relationship, Drug Harmful Algal Bloom/*drug effects Microcystins/*metabolism Microcystis/*drug effects/growth & development/metabolism Pheromones/isolation & purification/*pharmacology Plant Extracts/isolation & purific;" |
| Notes: | "MedlineMeng, Panpan Pei, Haiyan Hu, Wenrong Liu, Zhongde Li, Xiuqing Xu, Hangzhou eng Research Support, Non-U.S. Gov't England 2015/08/08 Chemosphere. 2015 Dec; 141:219-26. doi: 10.1016/j.chemosphere.2015.07.057. Epub 2015 Jul 31" |
