代谢组
生物降解
有机质
环境科学
异养
环境化学
放线菌门
溶解有机碳
土壤有机质
化学
土壤水分
土壤科学
生物
代谢组学
细菌
色谱法
有机化学
生物化学
遗传学
16S核糖体RNA
基因
作者
Jacob P. VanderRoest,Julie A. Fowler,Charles C. Rhoades,Holly K. Roth,Corey D. Broeckling,Timothy S. Fegel,Amy M. McKenna,Emily K. Bechtold,Claudia M. Boot,Michael J. Wilkins,Thomas Borch
标识
DOI:10.1021/acs.est.3c09797
摘要
Global wildfire activity has increased since the 1970s and is projected to intensify throughout the 21st century. Wildfires change the composition and biodegradability of soil organic matter (SOM) which contains nutrients that fuel microbial metabolism. Though persistent forms of SOM often increase postfire, the response of more biodegradable SOM remains unclear. Here we simulated severe wildfires through a controlled "pyrocosm" approach to identify biodegradable sources of SOM and characterize the soil metabolome immediately postfire. Using microbial amplicon (16S/ITS) sequencing and gas chromatography-mass spectrometry, heterotrophic microbes (
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