College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30, Puzhu Road, Nanjing, 211800, China.
Appl Microbiol Biotechnol. 2019 Oct;103(20):8339-8350. doi: 10.1007/s00253-019-10115-7. Epub 2019 Sep 9.
Bacteria from the genus Geobacillus are generally obligately thermophilic, with a unique bioenergy production capacity and unique enzymes. Geobacillus species were isolated primarily from hot springs, oilfields, and associated soils. They often exhibit unique survival patterns in these extreme oligotrophic environments. With the development of the microbial resources found in oilfields, Geobacillus spp. have been proven as valuable bacteria in many reports related to oilfields. After the isolation of Geobacillus by culture methods, more evidence was found that they possess the abilities of hydrocarbon utilization and bioemulsifier production. This paper mainly summarizes some characteristics of the Geobacillus species found in the oilfield environment, focusing on the inference and analysis of hydrocarbon degradation and bioemulsifier synthesis based on existing research, which may reveal their potential value in microbial enhanced oil recovery. It also provides references for understanding microbes in extreme environments.
地杆菌属的细菌通常为严格嗜热菌，具有独特的生物能源生产能力和独特的酶。地杆菌属主要从温泉、油田和相关土壤中分离出来。它们在这些极端贫营养的环境中经常表现出独特的生存模式。随着油田微生物资源的开发，地杆菌属已被证明是许多与油田相关的有价值的细菌。通过培养方法分离出地杆菌后，更多的证据表明它们具有利用烃类物质和生产生物乳化剂的能力。本文主要总结了油田环境中发现的地杆菌属的一些特性，重点是基于现有研究对地杆菌属降解烃类物质和合成生物乳化剂的推断和分析，这可能揭示了它们在地沟油微生物驱替中的潜在价值。同时，也为了解极端环境中的微生物提供了参考。
