首页|Insights into chemoautotrophic traits of a prevalent bacterial phylum CSP1-3,herein Sysuimicrobiota

Insights into chemoautotrophic traits of a prevalent bacterial phylum CSP1-3,herein Sysuimicrobiota

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Candidate bacterial phylum CSP 1-3 has not been cultivated and is poorly understood.Here,we analyzed 112 CSP1-3 metagenome-assembled genomes and showed they are likely facultative anaerobes,with 3 of 5 families encoding autotrophy through the reductive glycine pathway(RGP),Wood-Ljungdahl pathway(WLP)or Calvin-Benson-Bassham(CBB),with hydrogen or sulfide as electron donors.Chemoautotrophic enrichments from hot spring sediments and fluorescence in situ hybridization revealed enrichment of six CSP1-3 genera,and both transcribed genes and DNA-stable isotope probing were consistent with proposed chemoautotrophic metabolisms.Ancestral state reconstructions showed that the ancestors of phylum CSP 1-3 may have been acetogens that were autotrophic via the RGP,whereas the WLP and CBB were acquired by horizontal gene transfer.Our results reveal that CSP 1-3 is a widely distributed phylum with the potential to contribute to the cycling of carbon,sulfur and nitrogen.The name Sysuimicrobiota phy.nov.is proposed.

Sysuimicrobiota phy.nov.facultative anaerobeschemoautotrophic metabolisms

Lan Liu、Zheng-Han Lian、Ai-Ping Lv、Nimaichand Salam、Jian-Chao Zhang、Meng-Meng Li、Wei-Min Sun、Sha Tan、Zhen-Hao Luo、Lei Gao、Yang Yuan、Yu-Zhen Ming、Yu-Ting OuYang、Yu-Xian Li、Ze-Tao Liu、Chao-Jian Hu、Ying Chen、Zheng-Shuang Hua、Wen-Sheng Shu、Brian P.Hedlund、Wen-Jun Li、Jian-Yu Jiao

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State Key Laboratory of Biocontrol,Guangdong Provincial Key Laboratory of Plant Stress Biology and Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),School of Life Sciences,Sun Yat-Sen University,Guangzhou 510275,China

National Agri-Food Biotechnology Institute,Mohali 140306,India

School of Earth System Science,Institute of Surface-Earth System Science,Tianjin University,Tianjin 300072,China

National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China,Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management,Institute of Eco-Environmental and Soil Sciences,Guangdong Academy of Sciences,Guangzhou 510650,China

State Key Laboratory of Desert and Oasis Ecology,Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China

Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion,Department of Environmental Science and Engineering,University of Science and Technology of China,Hefei 230026,China

Institute of Ecological Science,Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring,Guangdong Provincial Key Laboratory of Biotechnology for Plant Development,School of Life Sciences,South China Normal University,Guangzhou 510631,China

Guangdong Provincial Key Laboratory of Chemical Pollution,South China Normal University,Guangzhou 510006,China

School of Life Sciences,University of Nevada Las Vegas,Las Vegas,NV 89154,USA

Nevada Institute of Personalized Medicine,University of Nevada Las Vegas,Las Vegas,NV 89154,USA

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2024

10.1093/nsr/nwae378

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ISSN：
年,卷(期)：2024.11(11)