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Inhibitory effects of Chinese traditional herbs and herb-modified clays on the growth of harmful algae, Phaeocystis globosa and Prorocentrum donghaiense

文献类型： 外文期刊

作者： Tian, Fei 1 ; Zhou, Jingyun 2 ; Sun, Zhiwei 3 ; Cai, Zhuoping 4 ; Xu, Ning 1 ; An, Min 5 ; Duan, Shunshan 1 ;

作者机构： 1.Jinan Univ, Res Ctr Hydrobiol, Guangzhou 510632, Guangdong, Peoples R China

2.South China Agr Univ, Instrumental Anal & Res Ctr, Guangzhou 510642, Guangdong, Peoples R China

3.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China

4.Guangdong Inst Microbiol, Guangzhou 510070, Guangdong, Peoples R China

5.Charles Sturt Univ, EH Graham Ctr Agr Innovat Industry & Investment N, Fac Sci, Environm & Analyt Labs, Wagga Wagga, NSW 2678, Australia

6.Charles Sturt Univ, Wagga Wagga, NSW 2678, Australia

关键词： Chinese traditional herb;Modified clay;Phaeocystis globosa;Prorocentrum donghaiense;Growth phase;Pulsed addition

期刊名称：HARMFUL ALGAE （ 影响因子：4.273； 五年影响因子：5.824 ）

ISSN：

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收录情况： SCI

摘要： In order to develop an improved method of mitigating harmful algal blooms (HABs), we assessed the inhibitory effects of five Chinese traditional herbs, Andrographis paniculata (Burm.f.) Nees, Galla chinensis, Punica granatum L., Cortex phellodendri chinensis and Radix scutellariae, as well as clay modified with herb extract on the growth of two harmful algae, Phaeocystis globosa and Prorocentrum donghaiense. The results showed that the five Chinese herbs had varying effects on the target microalgae and inhibitory rates ranged from -35% to 100% at concentration of 0.3 g dry wt./L during 96 h treatments. Among the five herbs, G. chinensis exhibited the strongest inhibitory effect, almost 100% on P. globosa and P. donghaiense. The growth of P. globosa and P. donghaiense was completely inhibited by G. chinensis extracts (0.3 g dry wt./L) during all growth phases, and lag phase cultures were more sensitive than exponential phase and stationary phase cultures. The highest inhibitory rate (100% inhibition) on P. globosa was observed at lag phase, followed by exponential phase (73.1% inhibition), and stationary phase (57% inhibition). The highest inhibitory rate of 100% on P. donghaiense was also found at lag phase, 40.3% at exponential phase, and 23.4% at stationary phase. Furthermore, modified clay with G. chinensis extract significantly enhanced the inhibitory impact. Modified clay (0.3 g L~(-1)) produced 95% of growth inhibition for both algae species at 24 h, and maintained the inhibition thereafter. Our study demonstrated that G. chinensis and clays modified with its extract significantly inhibited the growth of harmful species, therefore may provide ideas and another option for control of harmful algal blooms.

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[1]GROWTH INTERACTIONS BETWEEN THE BLOOM-FORMING DINOFLAGELLATES Prorocentrum donghaiense AND Karenia mikimotoi UNDER DIFFERENT TEMPERATURE. Shen, Anglu,Liu, Guangpeng,Li, Daoji,Shen, Anglu,Yuan, Xingwei. 2014

[2]Planktonic community structure during a harmful bloom of Phaeocystis globosa in a subtropical bay, with special reference to the ciliate assemblages. Liu, Hua-Xue,Huang, Hong-Hui,Xu, Shan-Nan,Dai, Ming,Shen, Ping-Ping.

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