Isolation and characterization of ureolytic calcifying bacteria from methane hydrate-bearing marine sediments for bio-cementation application
文献类型：期刊论文
| 作者 | Zada, Sahib2; Rafiq, Muhammad4; Sajjad, Wasim1; Afzal, Muhammad3; Su, Zheng2; Liu, Lihua2 |
| 刊名 | PHYSICS AND CHEMISTRY OF THE EARTH
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 137页码:13 |
| 关键词 | Bio-calcification CaCO 3 precipitation Marine environment Methane hydrate Sustainable development Urea hydrolysis |
| ISSN号 | 1474-7065 |
| DOI | 10.1016/j.pce.2024.103808 |
| 通讯作者 | Liu, Lihua(liulh@ms.giec.ac.cn) |
| 英文摘要 | In bio-calcification, microbes precipitate calcium carbonate (CaCO3), forming versatile solid substances that promotes eco-friendly materials and reduce carbon emissions. Marine bacteria can generate bio-cements to strengthen dikes and combat coastal erosion. However, the role of marine bacteria in generating bio-cements for enhancing coastal structures and combating erosion is not fully understood. This study investigates the potential of CaCO3 precipitating bacteria isolated from methane hydrate-bearing marine sediments. Five calcifying marine bacteria were isolated using Christensen's urea agar from marine sediments collected from Gawadar coastal, Pakistan. Bacterial strains induced CaCO3 precipitation producing urease enzymes. Strains were identified as Pseudomonas putida, Bacillus altitudinis, Vibrio sp., Bacillus sp., and Vibrio plantisponsor. Energy-dispersive X-ray spectroscopy, scanning electron microscopy, and X-ray diffraction were applied for the identification and differentiation of calcite and vaterite precipitates. The growth of isolates and precipitation potential were observed optimum at 5% NaCl and pH 9.5-11. Bacillus altitudinis (ST4SD3) and Bacillus sp. (ST4SD1) produced more soluble Ca2+ (8532.53 mg/l and 7581.98 mg/l) as compare to other isolates at higher pH 10 and pH 11, favorable for CaCO3 precipitation. It is concluded that marine ureolytic bacteria possess significant potential for bio-cementation, which can stabilize methane hydrate-bearing sediments, improve soil properties, protect coastal regions from erosion, and crucial in the methane cycle, a greenhouse gas. We recommend further exploration of such bacteria's applications in marine construction and sediment stabilization to enhance the robustness and longevity of coastal infrastructures. Furthermore, such bacteria could also be beneficial in extracting gas from unconsolidated methane hydrates containing sediments. |
| WOS关键词 | CALCIUM-CARBONATE PRECIPITATION ; HALOPHILIC BACTERIA ; BIOMINERALIZATION ; CRYSTALLIZATION ; POLYMORPHS ; MORPHOLOGY |
| 资助项目 | National Natural Sciences Foundation of China ; NSFC[417760711] ; Guangdong Special Support Program[2019BT02L278] ; Major Program of Guangdong Basic and Applied Research[2019B030302004] |
| WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001357455900001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Sciences Foundation of China ; NSFC ; Guangdong Special Support Program ; Major Program of Guangdong Basic and Applied Research |
| 源URL | [http://ir.giec.ac.cn/handle/344007/43550]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Liu, Lihua |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.South China Agr Univ, Coll Agr, Guangzhou 510640, Peoples R China 4.Balochistan Univ IT, Fac Life Sci & Informat Engn & Management Sci, Dept Microbiol, Quetta 08770, Pakistan |
| 推荐引用方式 GB/T 7714 | Zada, Sahib,Rafiq, Muhammad,Sajjad, Wasim,et al. Isolation and characterization of ureolytic calcifying bacteria from methane hydrate-bearing marine sediments for bio-cementation application[J]. PHYSICS AND CHEMISTRY OF THE EARTH,2025,137:13. |
| APA | Zada, Sahib,Rafiq, Muhammad,Sajjad, Wasim,Afzal, Muhammad,Su, Zheng,&Liu, Lihua.(2025).Isolation and characterization of ureolytic calcifying bacteria from methane hydrate-bearing marine sediments for bio-cementation application.PHYSICS AND CHEMISTRY OF THE EARTH,137,13. |
| MLA | Zada, Sahib,et al."Isolation and characterization of ureolytic calcifying bacteria from methane hydrate-bearing marine sediments for bio-cementation application".PHYSICS AND CHEMISTRY OF THE EARTH 137(2025):13. |
入库方式： OAI收割
来源：广州能源研究所
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