Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China.
Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China; Hebei University of Environmental Engineering, Hebei Key Laboratory of Agroecological Safety, Qinhuangdao 066102, China.
Bioresour Technol. 2023 Nov;387:129608. doi: 10.1016/j.biortech.2023.129608. Epub 2023 Aug 5.
Aerobic composting is an effective and harmless method to treat Sauerkraut fermentation wastewater (SFW). Given the limited understanding of the effect of quorum sensing (QS) on humification in subcommunities under acidic environments, a large-scale analysis was conducted to identify features that impact the response of QS to humification in different subcommunities. The results showed that the addition of SFW directly affected humification in subcommunities A and C, and the abundances of functional genes related to carbon fixation and carbon degradation were significantly increased at 7 and 15 d, respectively. In addition, subcommunity B indirectly affected humus production but regulated carbon metabolic pathways such as glycolysis/gluconeogenesis and pentose phosphate by QS with subcommunities B. These findings provide a novel perspective for analysing the regulation of humification in aerobic composting and suggest that composting has potential applications in organic wastewater treatment.
好氧堆肥是一种有效且无害的方法，可用于处理酸菜发酵废水（Sauerkraut fermentation wastewater，SFW）。鉴于对群体感应（quorum sensing，QS）对酸性环境下亚群落腐殖化影响的了解有限，本研究进行了大规模分析，以确定影响 QS 对不同亚群落腐殖化响应的特征。结果表明，SFW 的添加直接影响了亚群落 A 和 C 的腐殖化，与碳固定和碳降解相关的功能基因的丰度分别在 7 和 15 d 时显著增加。此外，亚群落 B 间接影响腐殖质的产生，但通过 QS 与亚群落 B 一起调节糖酵解/糖异生和磷酸戊糖途径等碳代谢途径。这些发现为分析好氧堆肥中腐殖化的调控提供了新的视角，并表明堆肥在有机废水处理中有潜在的应用。
