A New Perspective: Revealing the Algicidal Properties of Bacillus subtilis to Alexandrium pacificum from Bacterial Communities and Toxins

doi:10.3390/md20100624

	A New Perspective: Revealing the Algicidal Properties of Bacillus subtilis to Alexandrium pacificum from Bacterial Communities and Toxins
	Cheng, Ruihong1,2,3,4 ; Song, Xiuxian1,2,3,4 ; Song, Weijia 1,2,3,4; Yu, Zhiming1,2,3,4
	2022-10-01
发表期刊	MARINE DRUGS
卷号	20 期号:10 页码:17
通讯作者	Song, Xiuxian(songxx@qdio.ac.cn)
摘要	Algicidal bacteria are important in the control of toxic dinoflagellate blooms, but studies on the environmental behavior of related algal toxins are still lacking. In this study, Bacillus subtilis S3 (S3) showed the highest algicidal activity against Alexandrium pacificum (Group IV) out of six Bacillus strains. When treated with 0.5% (v/v) S3 bacterial culture and sterile supernatant, the algicidal rates were 69.74% and 70.22% at 12 h, respectively, and algicidal substances secreted by S3 were considered the mechanism of algicidal effect. During the algicidal process, the rapid proliferation of Alteromonas sp. in the phycosphere of A. pacificum may have accelerated the algal death. Moreover, the algicidal development of S3 released large amounts of intracellular paralytic shellfish toxins (PSTs) into the water, as the extracellular PSTs increased by 187.88% and 231.47% at 12 h, compared with the treatment of bacterial culture and sterile supernatant at 0 h, respectively. Although the total amount of PSTs increased slightly, the total toxicity of the algal sample decreased as GTX1/4 was transformed by S3 into GTX2/3 and GTX5. These results more comprehensively reveal the complex relationship between algicidal bacteria and microalgae, providing a potential source of biological control for harmful algal blooms and toxins.
关键词	algicidal bacteria algicidal effect paralytic shellfish toxins Alexandrium pacificum Bacillus harmful algal blooms
DOI	10.3390/md20100624
收录类别	SCI
语种	英语
资助项目	project of the Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology, Qingdao[2021QNLM0400016] ; National Natural Science Foundation of China[41976148] ; Taishan Scholars Climbing Program of Shandong Province
WOS研究方向	Pharmacology & Pharmacy
WOS类目	Chemistry, Medicinal ; Pharmacology & Pharmacy
WOS记录号	WOS:000874306900001
出版者	MDPI
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/180579
专题	海洋生态与环境科学重点实验室
通讯作者	Song, Xiuxian
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Cheng, Ruihong,Song, Xiuxian,Song, Weijia,et al. A New Perspective: Revealing the Algicidal Properties of Bacillus subtilis to Alexandrium pacificum from Bacterial Communities and Toxins[J]. MARINE DRUGS,2022,20(10):17.
APA	Cheng, Ruihong,Song, Xiuxian,Song, Weijia,&Yu, Zhiming.(2022).A New Perspective: Revealing the Algicidal Properties of Bacillus subtilis to Alexandrium pacificum from Bacterial Communities and Toxins.MARINE DRUGS,20(10),17.
MLA	Cheng, Ruihong,et al."A New Perspective: Revealing the Algicidal Properties of Bacillus subtilis to Alexandrium pacificum from Bacterial Communities and Toxins".MARINE DRUGS 20.10(2022):17.

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