Physiological and Proteomic Alterations in Macrocystis pyrifera under Chromium(VI) Stress
文献类型： 外文期刊
作者： Wang, Lu 1 ; Yu, Dong Dong 2 ; Xu, Dong 3 ; Li, Ying Xia 1 ;
作者机构： 1.Qingdao Agr Univ, Marine Sci & Engn Coll, Qingdao 266109, Peoples R China
2.Tech Ctr Qingdao Customs Dist, Qingdao 266005, Peoples R China
3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266071, Peoples R China
关键词： chromium; Macrocystis pyrifera; proteomic
期刊名称：RUSSIAN JOURNAL OF MARINE BIOLOGY （ 影响因子：0.621； 五年影响因子：0.675 ）
ISSN： 1063-0740
年卷期： 2021 年 47 卷 3 期
页码：
收录情况： SCI
摘要： In order to further understanding of how alga are adjusted to chromium(VI) toxicity at the level of photosynthesis, the pigment content and chlorophyll a (Chla) fluorescence parameters, were studied in Macrocystis pyrifera blades treated with 0, 0.5, 2, 10 and 20 mg/L Cr (VI) solution for 24 h. Results showed that these parameters were clearly affected by different concentrations of Cr (VI The pigment contents and Chla fluorescence parameters were clearly decreased in M. pyrifera exposed to 20 mg/L Cr (VI). Furthermore, the present study provided novel insights into Cr(VI) toxicity at the proteomic level using TMT-based technology after M. pyrifera was irrigated with 0 or 20 mg/L Cr(VI) solution for 24 h. The decreases in pigment content and Chl a fluorescence parameters resulted from alternations of the related proteins involved in pigment synthesis and photosynthetic processes. Expression of 227 different proteins was detected. Analysis of significant changes in KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways showed that M. pyrifera is able to reorganize its proteome in favor of photosynthesis, carbon fixation, metabolic pathways, oxidative phosphorylation, biosynthesis of amino acids, carbon metabolism, ribosome and biosynthesis of secondary metabolites under Cr(VI) stress. These findings could provide valuable information to elucidate the mechanism of Cr(VI) toxicity in M. pyrifera.
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