庄航;薛文;王柳富;曹清晟;王假真;张莹莹;魏文志;

• 1:扬州大学动物科学与技术学院
• 2:江苏高邮湖生态渔业发展有限公司

摘要(Abstract)：

乙草胺是我国使用量最大的除草剂之一,在水体中广泛存在。已有研究证明,乙草胺对人类、老鼠和鱼类具有毒害效应,而关于其对浮游植物影响的研究较少。以蛋白核小球藻(Chlorella pyrenoidosa)为模型,使用1～10 000μg·L~(-1)的乙草胺对其进行7 d的暴露实验,考察小球藻生长性能、叶绿素含量、光合作用产氧量以及光合作用相关基因(pbsA、rbcL和rbcS)表达的变化。结果表明,较低浓度的乙草胺可刺激蛋白核小球藻生长,而较高浓度乙草胺则会抑制其生长;并且乙草胺会通过影响小球藻叶绿素的含量而影响光合作用产氧量;小球藻光合作用相关基因pbsA、rbcL和rbcS表达大多显著上升,这可能是对乙草胺胁迫响应的反馈调节。研究表明,乙草胺会对蛋白核小球藻的生长及光合作用产生影响。

关键词(KeyWords)： 乙草胺;蛋白核小球藻;生长;叶绿素;光合作用相关基因

Abstract:

Keywords:

基金项目(Foundation): 高邮市科技项目(GY201816)

作者(Author): 庄航;薛文;王柳富;曹清晟;王假真;张莹莹;魏文志;

Email:

DOI:

参考文献(References)：

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