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| 不同环境条件对韭菜水溶性浸提液抑藻效果的影响 | |
| 引用本文： | 刘文桃,石光辉,董昆明,赵海涛,封克.不同环境条件对韭菜水溶性浸提液抑藻效果的影响[J].安徽农业科学,2012(7):4165-4168. |
| 作者姓名： | 刘文桃 石光辉 董昆明 赵海涛 封克 |
| 作者单位： | 1. 扬州环境资源职业技术学院,江苏扬州225127;扬州大学环境科学与工程学院,江苏扬州225127 2. 扬州环境资源职业技术学院,江苏扬州,225127 3. 扬州大学环境科学与工程学院,江苏扬州225127;江苏省扬州农业环境安全技术服务中心,江苏扬州225127 |
| 基金项目： | 国家自然科学基金项目，水利部公益性行业科研专项，江苏省环境材料与环境工程重点实验室开放基金，扬州环境资源职业技术学院项目 |
| 摘 要： | 目的]研究不同环境条件对韭菜水溶性浸提液抑藻效果的影响,为进一步研究和开发新的抑藻物质提供参考。方法]通过设置不同的pH、光照强度以及曝气与否,对不同条件下韭菜浸提液对铜绿微囊藻生长的影响进行了对比研究。结果]在7 d的培养过程中,不同pH条件下,韭菜浸提液对铜绿微囊藻的生长抑制均达到90%以上,随着铜绿微囊藻的生长,不同起始pH的培养液,最终的pH趋向于9～9.5之间;在1 000～4 000 lx的光强范围内,韭菜浸提液对藻细胞的生长抑制率均随培养时间的延长而增加,低光照强度(1 000 lx)下,韭菜浸提液对铜绿微囊藻抑制效果要好于高光照强度处理,即最佳的生长光照强度并不有利化感作用的发挥;同时,曝气相对非曝气条件而言,曝气条件更有利于韭菜浸提液对铜绿微囊藻生长的抑制。结论]该研究结果表明pH、光照强度、是否曝气均影响韭菜水溶性浸提液高温处理后对铜绿微囊藻的抑制效果。探讨这些环境因子对植物化感物质抑藻效果的影响,可为进一步研究和开发新的抑藻物质提供参考。 |
| 关 键 词： | 铜绿微囊藻 韭菜浸提液 pH 光照 曝气 |
Effect of Different Environmental Conditions on Algicidal Effect of Water-soluble Extracts of Chinese Chive |
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| Institution: | LIU Wen-tao et al(Yangzhou Polytechnic College of Environment and Resource,Yangzhou,Jiangsu 225127) |
| Abstract: | Objective]The paper was to study the algicidal effect of water-soluble extracts of Chinese chive under different environmental conditions,so as to provide reference for further study and development of new algicidal substances.Method] The effects of water-soluble extracts of Chinese chive on the growth of Microcystis aeruginosa under different pH,light and aeration conditions were compared and studied.Result] The growth inhibition rate of water-soluble extracts of Chinese chive on M.aeruginosa was greater than 90% under different pH conditions.With the growth of M.aeruginosa,the culture liquid with different initial pH was finally tended to 9-9.5.The growth inhibition rate of water-soluble extracts of Chinese chive on algae cell increased with the prolongation of culture time within the light intensity range of 1 000-4 000 lx.The inhibition effect of water-soluble extracts of Chinese chive on M.aeruginosa under low light intensity(1 000 lx)was better than that under high light intensity,the best light intensity for growth was not conducive to the exertion of allelopathic effect.Meanwhile,aeration condition was more conducive to the inhibition effect of water-soluble extracts of Chinese chive on the growth of M.aeruginosa.Conclusion] pH,light and aeration conditions all affected the inhibition effect of water-soluble extracts of Chinese chive treated by high temperature on M.aeruginosa.Understanding the effect of these environmental factors on algicidal effect of allelochemicals could provide reference for further study and development of new algicidal substances. |
| Keywords: | Microcystis aeruginosa Water-soluble extracts of Chinese chive pH Light Aeration |
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