一种甲型细菌,以使甲除去气候缓解的气候缓解
Lian He1, Joseph D Groom1, Erin H Wilson2
1Department of Chemical Engineering, University of Washington, Seattle, WA 98195.
概括
研究人员发现了一种消耗甲的细菌, *Methylotuvimicrobium buryatense* 5GB1C,在低甲水平下壮成长. 这一发现提供了一个有希望的生物解决方案,用于减轻排放地点的甲,以应对全球变暖.
科学领域:
- 环境微生物学环境微生物学
- 生物技术用于减缓气候变化.
背景情况:
- 大气中的甲是一种强大的温室气体,需要采取紧急的减缓策略.
- 甲营养菌,即消耗甲的细菌,提供了一种生物方法来去除甲.
- 目前的甲类植物通常需要高度的甲 (5,000-10,000 ppm),限制它们在环境空气 (1.9 ppm) 或排放场所 (约. 500 ppm) 的时间.
研究的目的:
- 为了确定能够在低度 (≤500 ppm) 中有效消耗甲的甲性细菌.
- 评估这些细菌在开发排放源的甲去除技术方面的潜力.
主要方法:
- 对现有的甲变性菌株进行查,以500ppm甲的增长和甲消耗.
- 生物反应器性能分析.
- 基于RNAseq的转录组学,以了解低甲利用的代谢基础.
主要成果:
- 几种甲变型菌株在500ppm甲下显示出有效的生长.
- 与之前报告的值相比,5GB1C的*methylotuvimicrobium buryatense*表现出更高的低甲消耗率.
- 转录和代谢分析表明,维护能耗要求低,甲亲和度高,有助于其效率.
结论:
- *Methylotuvimicrobium buryatense* 5GB1C是开发生物甲去除技术的强有力的候选者.
- 这项技术,如果扩大规模,可以通过向各种工业和自然来源的甲排放来显著减缓全球变暖.
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