Comparative proteomic analysis of Methanothermobacter thermautotrophicus reveals methane formation from H-2 and CO2 under different temperature conditions
文献类型： 外文期刊
作者： Liu, Cong 1 ; Mao, Lihui 1 ; Zheng, Xiongmin 1 ; Yuan, Jiangan 1 ; Hu, Beijuan 1 ; Cai, Yaohui 3 ; Xie, Hongwei 3 ; Peng, 1 ;
作者机构： 1.Nanchang Univ, Sch Life Sci, Nanchang, Jiangxi, Peoples R China
2.Nanchang Univ, Inst Life Sci, Nanchang, Jiangxi, Peoples R China
3.Jiangxi Acad Agr Sci, Jiangxi Super Rice Res & Dev Ctr, Nanchang, Jiangxi, Peoples R China
4.Nanchang Univ, Biol Expt Teaching Demonstrat, Nanchang, Jiangxi, Peoples R China
关键词： iTRAQ; methane formation; Methanothermobacter thermautotrophicus; proteomics; temperature stress
期刊名称：MICROBIOLOGYOPEN （ 影响因子：3.139； 五年影响因子：3.503 ）
ISSN： 2045-8827
年卷期： 2019 年 8 卷 5 期
页码：
收录情况： SCI
摘要： The growth of all methanogens is limited to a specific temperature range. However, Methanothermobacter thermautotrophicus can be found in a variety of natural and artificial environments, the temperatures of which sometimes even exceed the temperature growth ranges of thermophiles. As a result, the extent to which methane production and survival are affected by temperature remains unclear. To investigate the mechanisms of methanogenesis that Archaea have evolved to cope with drastic temperature shifts, the responses of Methanothermobacter thermautotrophicus to temperature were investigated under a high temperature growth (71 degrees C) and cold shock (4 degrees C) using Isobaric tags for relative and absolute quantitation (iTRAQ). The results showed that methane formation is decreased and that protein folding and degradation are increased in both high- and low-temperature treatments. In addition, proteins predicted to be involved in processing environmental information processing and in cell membrane/wall/envelope biogenesis may play key roles in affecting methane formation and enhancing the response of M. thermautotrophicus to temperature stress. Analysis of the genomic locations of the genes corresponding to these temperature-dependent proteins predicted that 77 of the genes likely to form 32 gene clusters. Here, we assess the response of M. thermautotrophicus to different temperatures and provide a new level of understanding of methane formation and cellular putative adaptive responses.
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