生物学杂志

生物学杂志 ›› 2021, Vol. 38 ›› Issue (4): 65-.doi: 10. 3969 / j. issn. 2095-1736. 2021. 04. 065

• 研究报告 • 上一篇    下一篇

有机酸对铜绿微囊藻生长及光合色素的影响

  

  1. 南京林业大学风景园林学院,南京210037
  • 出版日期:2021-08-18 发布日期:2021-08-18
  • 通讯作者: 田如男,教授,博士研究生,研究方向为园林植物生理生态,E-mail:tianrunan@njfu.edu.cn
  • 作者简介:侯新星,硕士研究生,研究方向为园林植物生态修复,E-mail:aster26@sina.cn
  • 基金资助:
    基金项目:国家自然科学基金项目(31670698);江苏高校优势学科建设工程项目;江苏高校“青蓝工程”项目

Effects of organicacidson grow than dphotosyn the ticpigment of Microcystisaeruginosa

  1. College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
  • Online:2021-08-18 Published:2021-08-18

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摘要： 　以水华常见优势种铜绿微囊藻为试验材料,研究不同浓度丁二酸、香草酸与肉桂酸这3种有机酸对铜绿微囊摘藻生要长及光合色素的影响。结果表明:有机酸对铜绿微囊藻生长的抑制作用随着处理浓度的增加而增强,丁二酸、香草酸与肉桂酸对铜绿微囊藻的最大抑制率达到98. 63%、48. 06%和96. 70%,抑制作用大小排序为肉桂酸>丁二酸>香草酸;丁二酸、香草酸及肉桂酸作用下,铜绿微囊藻叶绿素a含量、藻胆蛋白各组分均有一定损伤,且藻蓝蛋白与别藻蓝蛋白受损程度较藻红蛋白重。有机酸通过作用于藻类光合系统Ⅱ反应中心,抑制藻类光合作用,从而抑制藻类生长。在实际应用有机酸控藻时,应注意施用的有机酸种类与浓度。

关键词: 丁二酸, 香草酸, 肉桂酸, 抑制, 铜绿微囊藻, 光合色素

Abstract:

Microcystisaeruginosa, a common dominant species of blooms, was used as a test material to study the effects of differentconcentrations, three organic acids such as succinic acid, vanillic acid and cinnamic acid on the growth and photosynthetic pigments ofMicrocystisaeruginosa. The results showed that the inhibition effect of organic acids on the growth of Microcystisaeruginosaincreased with the increase of the treatment concentration, and the maximum inhibition rates of succinic acid, vanillic acid and cinnamic acid on Microcystisaeruginosareached 98. 63%, 48. 06% and 96. 70%, respectively, but in general, the order for inhibition was cinnamicacid> succinic acid> vanillic acid; under the action of succinic acid, vanillic acid and cinnamic acid, the content of chlorophyll a andmicrobial protein of Microcystisaeruginosawere all damaged, and the damage to phycocyanin and allophycocyanin was heavier than that of phycoerythrin. Organic acids acted on the reaction center of the algae photosynthesis system II to inhibit the photosynthesis of algae,thereby inhibiting the algae growth. In the practical application of organic acid algae control, attention should be paid to the type andconcentration of organic acid applied.

Key words: succinic acid, vanillic acid, cinnamic acid, inhibition;Microcystisaeruginosa, photosynthetic pigment

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