Toxicity of algicidal extracts from Mangrovimonas yunxiaonensis strain LY01 on a HAB causing Alexandrium tamarense

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	Toxicity of algicidal extracts from Mangrovimonas yunxiaonensis strain LY01 on a HAB causing Alexandrium tamarense
	Li, Yi ; Zhu, Hong ; Zhang, Huajun ; Chen, Zhangran ; Tian, Yun ; Xu, Hong ; Zheng, Tianl ; Zheng, Wei ; Tian Y(田蕴) ; Xu H(徐虹) ; Zheng TL(郑天凌)
刊名	http://dx.doi.org/10.1016/j.jhazmat.2014.06.032
	2014
关键词	Cell death Cell membranes Cell proliferation Genes Nuclear physics Toxicity Transmission electron microscopy
英文摘要	Toxicity of algicidal extracts from Mangrovimonas yunxiaonensis strain LY01 on Alexandrium tamarense were measured through studying the algicidal procedure, nuclear damage and transcription of related genes. Medium components were optimized to improve algicidal activity, and characteristics of algicidal extracts were determined. Transmission electron microscope analysis revealed that the cell structure was broken. Cell membrane integrity destruction and nuclear structure degradation were monitored using confocal laser scanning microscope, and the rbcS, hsp and proliferating cell nuclear antigen (PCNA) gene expressions were studied. Results showed that 1.0% tryptone, 0.4% glucose and 0.8% MgCl2 were the optimal nutrient sources. The algicidal extracts were heat and pH stable, non-protein and less than 1kD. Cell membrane and nuclear structure integrity were lost, and the transcription of the rbcS and PCNA genes were significantly inhibited and there was up-regulation of hsp gene expression during the exposure procedure. The algicidal extracts destroyed the cell membrane and nuclear structure integrity, inhibited related gene expression and, eventually, lead to the inhibition of algal growth. All the results may elaborate firstly the cell death process and nuclear damage in A. tamarense which was induced by algicidal extracts, and the algicidal extracts could be potentially used as bacterial control of HABs in future. ? 2014 Elsevier B.V.
语种	英语
出版者	Elsevier
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/90888]
专题	生命科学－已发表论文
推荐引用方式 GB/T 7714	Li, Yi,Zhu, Hong,Zhang, Huajun,et al. Toxicity of algicidal extracts from Mangrovimonas yunxiaonensis strain LY01 on a HAB causing Alexandrium tamarense[J]. http://dx.doi.org/10.1016/j.jhazmat.2014.06.032,2014.
APA	Li, Yi.,Zhu, Hong.,Zhang, Huajun.,Chen, Zhangran.,Tian, Yun.,...&郑天凌.(2014).Toxicity of algicidal extracts from Mangrovimonas yunxiaonensis strain LY01 on a HAB causing Alexandrium tamarense.http://dx.doi.org/10.1016/j.jhazmat.2014.06.032.
MLA	Li, Yi,et al."Toxicity of algicidal extracts from Mangrovimonas yunxiaonensis strain LY01 on a HAB causing Alexandrium tamarense".http://dx.doi.org/10.1016/j.jhazmat.2014.06.032 (2014).