Genomic Insights into Selenate Reduction by Anaerobacillus Species.

IF 4.1 2区 生物学 Q2 MICROBIOLOGY
Qidong Wang, Jian Zhang, Jinhui Liang, Yanlong Wang, Chongyang Ren, Xinhan Chen, Dongle Cheng, Huanxin Zhang, Huaqing Liu
{"title":"Genomic Insights into Selenate Reduction by <i>Anaerobacillus</i> Species.","authors":"Qidong Wang, Jian Zhang, Jinhui Liang, Yanlong Wang, Chongyang Ren, Xinhan Chen, Dongle Cheng, Huanxin Zhang, Huaqing Liu","doi":"10.3390/microorganisms13030659","DOIUrl":null,"url":null,"abstract":"<p><p>Selenium (Se), a potentially toxic trace element, undergoes complex biogeochemical cycling in the environment, largely driven by microbial activity. The reduction in selenate or selenite to elemental selenium is an environmentally beneficial process, as it decreases both Se toxicity and mobility. This reduction is catalyzed by enzymes encoded by various related genes. The link between Se reduction gene clusters and specific taxonomic groups is significant for elucidating the ecological roles and processes of Se reduction in diverse environments. In this study, a new species of Se-reducing microorganism belonging to the genus <i>Anaerobacillus</i> was isolated from a mining site. A comparative analysis of the growth characteristics reveals that <i>Anaerobacillus</i> species exhibit notable metabolic versatility, particularly in their fermentation abilities and utilization of diverse electron donors and acceptors. Genome analysis identified a diverse array of gene clusters associated with selenate uptake (<i>sul</i>, <i>pst</i>), selenate reduction (<i>ser</i>), and selenite reduction (<i>hig</i>, <i>frd</i>, <i>trx</i>, and <i>bsh</i>). Since selenate reduction is the first crucial step in Se reduction, genes linked to selenate reductase are the focus. The <i>serA</i> gene clusters analysis suggests that the <i>serA</i> gene is highly conserved across <i>Anaerobacillus</i> species. The surrounding genes of <i>serA</i> show significant variability in both presence and gene size. This evolutionary difference in coenzyme utilization and <i>serA</i> regulation suggests distinct survival strategies among <i>Anaerobacillus</i> species. This study offers insights into Se bio-transformations and the adaptive strategies of Se-reducing microorganisms.</p>","PeriodicalId":18667,"journal":{"name":"Microorganisms","volume":"13 3","pages":""},"PeriodicalIF":4.1000,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11944866/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microorganisms","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.3390/microorganisms13030659","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Selenium (Se), a potentially toxic trace element, undergoes complex biogeochemical cycling in the environment, largely driven by microbial activity. The reduction in selenate or selenite to elemental selenium is an environmentally beneficial process, as it decreases both Se toxicity and mobility. This reduction is catalyzed by enzymes encoded by various related genes. The link between Se reduction gene clusters and specific taxonomic groups is significant for elucidating the ecological roles and processes of Se reduction in diverse environments. In this study, a new species of Se-reducing microorganism belonging to the genus Anaerobacillus was isolated from a mining site. A comparative analysis of the growth characteristics reveals that Anaerobacillus species exhibit notable metabolic versatility, particularly in their fermentation abilities and utilization of diverse electron donors and acceptors. Genome analysis identified a diverse array of gene clusters associated with selenate uptake (sul, pst), selenate reduction (ser), and selenite reduction (hig, frd, trx, and bsh). Since selenate reduction is the first crucial step in Se reduction, genes linked to selenate reductase are the focus. The serA gene clusters analysis suggests that the serA gene is highly conserved across Anaerobacillus species. The surrounding genes of serA show significant variability in both presence and gene size. This evolutionary difference in coenzyme utilization and serA regulation suggests distinct survival strategies among Anaerobacillus species. This study offers insights into Se bio-transformations and the adaptive strategies of Se-reducing microorganisms.

厌氧杆菌减少硒酸盐的基因组研究。
硒(Se)是一种潜在的有毒微量元素,在环境中经历了复杂的生物地球化学循环,主要是由微生物活动驱动的。硒酸盐或亚硒酸盐还原为元素硒是一个对环境有益的过程,因为它降低了硒的毒性和迁移性。这种还原是由各种相关基因编码的酶催化的。硒还原基因簇与特定分类群之间的联系对于阐明不同环境下硒还原的生态作用和过程具有重要意义。在本研究中,从矿区分离到了一种新的硒还原微生物,属于厌氧杆菌属。对生长特性的比较分析表明,厌氧菌具有显著的代谢多样性,特别是在发酵能力和利用不同的电子供体和受体方面。基因组分析确定了与硒酸盐摄取(sul, pst),硒酸盐还原(ser)和亚硒酸盐还原(hig, frd, trx和bsh)相关的多种基因簇。硒酸盐还原是硒还原的第一个关键步骤,因此与硒酸盐还原酶相关的基因是研究的重点。serA基因聚类分析表明,serA基因在厌氧杆菌中高度保守。血清的周围基因在存在和基因大小上都表现出显著的可变性。这种辅酶利用和血清调节的进化差异表明厌氧杆菌物种之间存在不同的生存策略。该研究为硒的生物转化和硒还原微生物的适应策略提供了新的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Microorganisms
Microorganisms Medicine-Microbiology (medical)
CiteScore
7.40
自引率
6.70%
发文量
2168
审稿时长
20.03 days
期刊介绍: Microorganisms (ISSN 2076-2607) is an international, peer-reviewed open access journal which provides an advanced forum for studies related to prokaryotic and eukaryotic microorganisms, viruses and prions. It publishes reviews, research papers and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files and software regarding the full details of the calculation or experimental procedure, if unable to be published in a normal way, can be deposited as supplementary electronic material.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信