Bioresource Technology 287 (2019) 121428 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Eﬀects of earthworms on nitrogen transformation and the correspond genes (amoA and nirS) in vermicomposting of sewage sludge and rice straw a,c, a a b Baoyi Lv , Di Zhang , Qihao Chen , Yuxue Cui College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200241, China International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Shanghai Maritime University, Shanghai 201306, China GRAPHICAL ABSTRACT ARTIC L E I NF O ABSTRAC T Keywords: The eﬀects of earthworms on nitrogen transformation and the responsible functional genes during disposal of Vermicomposting sewage sludge and rice straw were investigated in this study. Vermicomposting resulted in the lower pH and Nitrogen transformation total organic carbon (TOC) compared to the control treatment without earthworms. Moreover, the presence of amoA earthworms could promote the nitrogen mineralization and nitriﬁcation process in vermicomposting. nirS Earthworms increased the activity of ammonia monooxygenase and abundance of amoA-nitriﬁer and reduced its Earthworm diversity, whereas they reduced the density of nirS-denitrifying bacteria but enhanced its diversity. Nitrosospira was the
Transplantation Proceedings – Elsevier
Published: Jun 1, 2019
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