Metagenome Insights into Armenian Acid Mine Drainage: A Novel Thermoacidophilic Iron-Oxidizing Bacterium with Perspectives for Copper Bioleaching
文献类型：期刊论文
| 作者 | Khachatryan, Anna3; Vardanyan, Arevik3; Zhang, Ruiyong4,5; Zhang, Yimeng4; Shi, Xin4; Willscher, Sabine1; Nguyen, Nhung H. A.2; Vardanyan, Narine3 |
| 刊名 | MICROORGANISMS
 |
| 出版日期 | 2026-01-09 |
| 卷号 | 14期号:1页码:22 |
| 关键词 | acid mine drainage metagenomic analysis microbial biodiversity metal resistance genes CAZymes iron-oxidizing bacteria copper recovery |
| DOI | 10.3390/microorganisms14010146 |
| 通讯作者 | Vardanyan, Arevik(arevik.vardanyan@asnet.am) |
| 英文摘要 | The microbial ecology of acid mine drainage (AMD) systems in Armenia, with a long mining history, remains unexplored. This study aimed to characterize the microbial diversity and functional potential of AMD in the Syunik region and to isolate novel microorganisms with biotechnological value. A comprehensive analysis of the microbial communities' structure of Kavart abandoned, Kapan exploring mines effluent, and Artsvanik tailing was conducted. Metagenomics revealed bacterial-dominated communities, comprising Pseudomonadota (previously "Proteobacteria") (68-72%), with site-specific variations in genus abundance. A high abundance and diversity of metal resistance genes (MRGs), particularly for copper and arsenic, were identified. Carbohydrate-active enzyme (CAZy) analysis showed a dominance of GT2 and GT4 genes, suggesting a high potential for extracellular polymeric substances (EPS) production and biofilm formation. A novel strain of iron-oxidizing bacteria Arm-12 was isolated that shares only similar to 90% similarity with known Leptospirillum type species, indicating it may represent a new genus without culturable representatives. The strain exhibits enhanced copper extraction from concentrate. This study provides the first metagenomic insights into Armenian AMD systems and tailing, revealing a unique community rich in metal resistance and biofilm-forming genes. The isolation of a novel highly effective iron-oxidizer Arm-12 highlights the potential of AMD environments as a source of novel taxa with significant applications in biomining and bioremediation processes. |
| WOS关键词 | METAL RESISTANCE ; GEN. NOV. ; MICROBIAL COMMUNITIES ; FAM. NOV. ; FAMILY ; GALLIONELLA ; DIVERSITY ; PATTERNS ; STRAINS ; ENZYMES |
| 资助项目 | Higher Education and Science Committee of MESCS RA[22rl-031] ; Higher Education and Science Committee of MESCS RA[23-YSIP-012] |
| WOS研究方向 | Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:001672559100001 |
| 出版者 | MDPI |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204622]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Vardanyan, Arevik |
| 作者单位 | 1.Martin Luther Univ Halle Wittenberg, Fac Nat Sci 1, D-06099 Halle, Germany 2.Tech Univ Liberec, Inst Nanomat Adv Technol & Innovat, Bendlova 1409-7, Liberec 46117, Czech Republic 3.SPC Armbiotechnol Natl Acad Sci Armenia, Dept Microbiol, 14 Gyurjyan Str, Yerevan 0056, Armenia 4.Chinese Acad Sci, Inst Oceanol, State Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 5.Guangxi Acad Sci, Inst Marine Corros Protect, Guangxi Key Lab Marine Environm Sci, Nanning 530007, Peoples R China |
| 推荐引用方式 GB/T 7714 | Khachatryan, Anna,Vardanyan, Arevik,Zhang, Ruiyong,et al. Metagenome Insights into Armenian Acid Mine Drainage: A Novel Thermoacidophilic Iron-Oxidizing Bacterium with Perspectives for Copper Bioleaching[J]. MICROORGANISMS,2026,14(1):22. |
| APA | Khachatryan, Anna.,Vardanyan, Arevik.,Zhang, Ruiyong.,Zhang, Yimeng.,Shi, Xin.,...&Vardanyan, Narine.(2026).Metagenome Insights into Armenian Acid Mine Drainage: A Novel Thermoacidophilic Iron-Oxidizing Bacterium with Perspectives for Copper Bioleaching.MICROORGANISMS,14(1),22. |
| MLA | Khachatryan, Anna,et al."Metagenome Insights into Armenian Acid Mine Drainage: A Novel Thermoacidophilic Iron-Oxidizing Bacterium with Perspectives for Copper Bioleaching".MICROORGANISMS 14.1(2026):22. |
入库方式： OAI收割
来源：海洋研究所
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