Response of sulfide:quinone oxidoreductase to sulfide exposure in the echiuran worm Urechis unicinctus.

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	Response of sulfide:quinone oxidoreductase to sulfide exposure in the echiuran worm Urechis unicinctus.
	Ma, Y. B.; Zhang, Z. F.; Shao, M. Y.; Kang, K. H.; Shi, X. L.; Dong, Y. P.; Li, J. L.
	2012
发表期刊	Mar Biotechnol (NY)
卷号	14 期号:2 页码:245-251
摘要	Sulfide is a natural, widely distributed, poisonous substance, and sulfide:quinone oxidoreductase (SQR) is responsible for the initial oxidation of sulfide in mitochondria. In this study, we examined the response of SQR to sulfide exposure (25, 50, and 150 μM) at mRNA, protein, and enzyme activity levels in the body wall and hindgut of the echiuran worm Urechis unicinctus, a benthic organism living in marine sediments. The results revealed SQR mRNA expression during sulfide exposure in the body wall and hindgut increased in a time- and concentrationdependent manner that increased significantly at 12 h and continuously increased with time. At the protein level, SQR expression in the two tissues showed a time-dependent relationship that increased significantly at 12 h in 50 μM sulfide and 6 h in 150 μM, and then continued to increase with time while no significant increase appeared after 25 μM sulfide exposure. SQR enzyme activity in both tissues increased significantly in a time-dependent manner after 50 μM sulfide exposure. We concluded that SQR expression could be induced by sulfide exposure and that the two tissues studied have dissimilar sulfide metabolic patterns. A U. unicinctus sulfide-induced detoxification mechanism was also discussed.
关键词	Mitochondria Sulfide Detoxification Sulfide:Quinone Oxidoreductase (Sqr) Urechis Unicinctus
学科领域	能源植物资源
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/1741
专题	资源植物与环境工程研究组
推荐引用方式 GB/T 7714	Ma, Y. B.,Zhang, Z. F.,Shao, M. Y.,et al. Response of sulfide:quinone oxidoreductase to sulfide exposure in the echiuran worm Urechis unicinctus.[J]. Mar Biotechnol (NY),2012,14(2):245-251.
APA	Ma, Y. B..,Zhang, Z. F..,Shao, M. Y..,Kang, K. H..,Shi, X. L..,...&Li, J. L..(2012).Response of sulfide:quinone oxidoreductase to sulfide exposure in the echiuran worm Urechis unicinctus..Mar Biotechnol (NY),14(2),245-251.
MLA	Ma, Y. B.,et al."Response of sulfide:quinone oxidoreductase to sulfide exposure in the echiuran worm Urechis unicinctus.".Mar Biotechnol (NY) 14.2(2012):245-251.

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