<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Qi Zhou</style></author><author><style face="normal" font="default" size="100%">Jia, Lixia</style></author><author><style face="normal" font="default" size="100%">Li, Yuanwei</style></author><author><style face="normal" font="default" size="100%">Wu, Weizhong</style></author><author><style face="normal" font="default" size="100%">Wang, Jianlong</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Deciphering stratified structure and microbiota assembly of biofilms from a pyrite-based biofilter driven by mixotrophic denitrification</style></title><secondary-title><style face="normal" font="default" size="100%">BIORESOURCE TECHNOLOGY</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biofilm</style></keyword><keyword><style  face="normal" font="default" size="100%">Community assembly</style></keyword><keyword><style  face="normal" font="default" size="100%">Extracellular polymeric substances</style></keyword><keyword><style  face="normal" font="default" size="100%">mixotrophic denitrification</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2024</style></year><pub-dates><date><style  face="normal" font="default" size="100%">DEC</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">ELSEVIER SCI LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">125 London Wall, London, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">414</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The precise structure and assembly process of pyrite-based biofilms remain poorly understood. The polysaccharides (PN), proteins (PS), and extracellular DNA were enriched in the soluble extracellular polymeric substance (EPS), loosely bound EPS, and tightly bound EPS, respectively, indicating a significant stratified structure of biofilms. The tryptophan facilitated mixotrophic metabolic processes. Both dominant (&amp;gt;1%) and rare species (&amp;lt;0.01 %) harbored core bacteria, including sulfur autotrophic bacteria, sulfate-reducing bacteria, and heterotrophic bacteria. Furthermore, partial least-squares path modeling quantified the contributions of total phosphorus (TP) (2 = 0.32), dissolved organic matter (DOC) (2 = 0.29), and NH4+-N (2 = 0.26) to variations in the microbial community. Nonmetric multidimensional scaling analysis revealed three distinct stages in biofilm development: colonization (0-36 d), succession (36-149 d), and maturation/old (149-215 d). Furthermore, neutral community model indicated that stochastic processes drove the colonization and maturation/old stages, while deterministic processes dominated the succession stage. This study offered valuable insights into the regulation of pyrite-based engineered ecosystems.</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type></record></records></xml>