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Physiological and Metabolomic Alterations in Macrocystis pyrifera upon Exposure to Chromium(VI)

文献类型： 外文期刊

作者： Li, Ying Xia 1 ; Xu, Dong 2 ; Zhang, Xiao Wen 2 ; Fan, Xiao 2 ; Ye, Nai Hao 2 ;

作者机构： 1.Qingdao Agr Univ, Marine Sci & Engn Coll, Qingdao 266109, Shandong, Peoples R China

2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China

3.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266071, Shandong, Peoples R China

关键词： Chromium; Macrocystis pyrifera; Metabolomic analysis; Chl alpha fuloresecnece parameters

期刊名称：INDIAN JOURNAL OF GEO-MARINE SCIENCES （ 影响因子：0.496； 五年影响因子：0.605 ）

ISSN： 0379-5136

年卷期： 2019 年 48 卷 10 期

页码：

收录情况： SCI

摘要： In order to comprehensively characterize the effects of chromium (VI) on physiological and metabonomic performance of Macrocystis pyrifera, the sporophytes were exposed to 2 mg L-1 potassium dichromate for 3 days. M. pyrifera sporophytes showed decreased pigment content and Chla fuloresecnece parameters with the accumulation of Cr(VI). The carbon content was clearly increased, while the content of nitrogen, hydrogen and sulfur were little changed. Moreover, an untargeted metabolomic analysis was carried out in order to investigate the metabolic effects and to obtain a comprehensive profiling of induced metabolites during Cr stress. Absolute quantification of 14 different metabolites was obtained through GC-MS methods. The principal component analysis showed a clear separation between control and Cr treated samples. Some pathways including carbon fixation, sulfur metabolism, taurine and hypotaurine metabolism were affected by Cr (VI) stress. These findings provided valuable information to elucidate the mechanism of M. pyrifera upon Cr (VI) stress.

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