Antioxidant and metabolism responses to polyphenol stress in cyanobacterium Microcystis aeruginosa
Antioxidant and metabolism responses to polyphenol stress in cyanobacterium Microcystis aeruginosa
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蓝藻铜绿微囊藻对多酚应激的抗氧化和代谢反应
DOI：
10.1080/03601234.2013.727722
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发表时间：
2013-01
期刊：
影响因子：
--
通讯作者：
Li, Shi Y.
中科院分区：
文献类型：
--
作者：
Ni, Li X.;Acharya, Kumud;Hao, Xiang Y.;Li, Shi Y.
三种常见的多酚化合物没食子酸(GA)、焦性没食子酸(PA)和儿茶酚(CA)对铜绿微囊藻的生长具有化感抑制作用。对铜绿假单胞菌的代谢和抗氧化反应进行了研究，以阐明这三种多酚抑制藻类生长的机制。多酚的抑制作用大小顺序为CA>；PA>；GA。GA和CA处理均使蛋白质含量、超氧化物歧化酶活性、过氧化氢酶活性和可溶性糖含量增加，其中以25 mg L−1处理的效果最为明显。可溶性糖含量在处理72h后显著增加，当处理时间延长时，蛋白质含量、超氧化物歧化酶和过氧化氢酶活性开始升高，但随着处理时间的延长，活性下降。我们的结果表明，较长时间的PA暴露可能抑制分解代谢作用，而CA暴露可能比GA或PA引起更多的氧化应激。总体研究表明，多酚诱导的氧化损伤可能是多酚抑制铜绿假单胞菌生长的原因。细胞抗氧化酶和可溶性糖的增加可能是为了抵消氧化应激。
Three common polyphenol compounds Gallic Acid (GA), Pyrogallic Acid (PA) and Catechol (CA) are known to have allelochemical-exhibiting inhibitory effects on the growth of the cyanobacterium Microcystis aeruginosa (M. aeruginosa). Metabolism and antioxidant responses in M. aeruginosa were investigated to elucidate the mechanism by which the three polyphenols inhibit algal growth. The inhibition effects of polyphenols were in the order of CA > PA > GA. The GA and CA exposures increased protein contents, superoxide dismutase (SOD) activity, catalase (CAT) activity and soluble sugar, especially for exposure to GA of 25 mg L−1. Soluble sugar content increased significantly especially when exposed to CA for 72 h. When exposed to PA, protein content, and SOD and CAT activities initially increased but over longer treatment time the activities decreased, in contrast to sugar content. Our results suggest that PA exposure for longer periods of time may inhibit catabolism action, while CA exposure could induce more oxide stress than GA or PA. The overall study showed that polyphenol-induced oxidative damage might be responsible for polyphenol inhibition on M. aeruginosa growth. The increases in cellular antioxidant enzymes and soluble sugar may have been to counteract the oxidative stress.
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影响因子：
5.8
作者：
Qiming Xian;Haidong Chen;Huili Liu;H. Zou;Daqiang Yin
通讯作者：
Qiming Xian;Haidong Chen;Huili Liu;H. Zou;Daqiang Yin
影响因子：
2.4
作者：
REED, RH;STEWART, WDP
通讯作者：
STEWART, WDP
DOI：
10.2521/jswtb.33.215
发表时间：
1997-12
期刊：
Japanese Journal of Water Treatment Biology
影响因子：
--
作者：
S. Nakai;Yutaka Inoue;M. Hosomi;A. Murakami
通讯作者：
S. Nakai;Yutaka Inoue;M. Hosomi;A. Murakami
影响因子：
4.5
作者：
Hong, Yu;Hu, Hong-Ying;Li, Feng-Min
通讯作者：
Li, Feng-Min
影响因子：
3.3
作者：
A. Pollio;G. Pinto;R. Ligrone;G. Aliotta
通讯作者：
A. Pollio;G. Pinto;R. Ligrone;G. Aliotta