A novel Methylomirabilota methanotroph potentially couples methane oxidation to iodate reduction

作     者：Baoli Zhu Clemens Karwautz Stefan Andrei Andreas Klingl Jakob Pernthaler Tillmann Lueders Baoli Zhu;Clemens Karwautz;Stefan Andrei;Andreas Klingl;Jakob Pernthaler;Tillmann Lueders

作者机构：Key Laboratory of Agro‐Ecological Processes in Subtropical RegionsTaoyuan Agroecosystem Research StationInstitute of Subtropical AgricultureChinese Academy of SciencesChangshaChina Chair of Ecological MicrobiologyBayreuth Center of Ecology and Environmental Research(BayCEER)University of BayreuthBayreuthGermany Department of Plant and Microbial BiologyLimnological StationUniversity of ZurichZurichSwitzerland Department of Limnology and Bio‐OceanographyUniversity of ViennaViennaAustria Biocenter of the LMU MunichPlant Development&Electron MicroscopyPlanegg‐MartinsriedGermany 

出 版 物：《mLife》 (微生物（英文）)

年 卷 期：2022年第1卷第3期

页      面：323-328页

学科分类：0710[理学-生物学] 081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：Baoli Zhu was supported by the National Natural Science Foundation of China(42177104) This research was also supported by the European Research Council(ERC)under the European Union's Seventh Framework Program(FP7/2007‐2013) grant agreement 616644(POLLOX)to Tillmann Lueders.Metagenomic sequencing was done via a Census of Deep Life(CoDL)metagenome project awarded by the Deep Carbon Observatory(DCO)under the project name DCO_LUE 

主　　题：methane statement iodine 

摘      要：Impact statement Methane oxidizing microbes play a key role in reducing the emission of this potent greenhouse gas to the *** known versatility of the recently discovered anaerobic Methylomirabilota methanotrophs is ***,we report a novel uncultured Methylomirabilis species,Candidatus Methylomirabilis iodofontis,with the genetic potential of iodate respiration from biofilm in iodine‐rich cavern spring ***‐like cells resembling Methylomirabilis oxyfera were directly observed from the biofilm and a high‐quality metagenome‐assembled genome(MAG)of *** was *** addition to oxygenic denitrification and aerobic methane oxidation pathways,the *** MAG also indicated its iodate‐reducing potential,a capability that would enable the bacterium to use iodate other than nitrite as an electron acceptor,a hitherto unrecognized metabolic potential of Methylomirabilota *** results advance the current understanding of the ecophysiology of anaerobic Methylomirabilota methanotrophs and may suggest an additional methane sink,especially in iodate‐rich ecosystems.