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Screening and identification of functional bacterial attachment genes in aerobic granular sludge
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作者 Kai Qiao Tingting Zhao +5 位作者 LeiWang Wei Zhang WeiMeng Fan Liu Xu Gao Jianrong Zhu 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2024年第7期205-214,共10页
The screening and identification of attachment genes is important to exploring the formation mechanism of biofilms at the gene level.It is helpful to the development of key culture technologies for aerobic granular sl... The screening and identification of attachment genes is important to exploring the formation mechanism of biofilms at the gene level.It is helpful to the development of key culture technologies for aerobic granular sludge(AGS).In this study,genome-wide sequencing and gene editing were employed for the first time to investigate the effects and functions of attachment genes in AGS.With the help of whole-genome analysis,ten attachment genes were screened from thirteen genes,and the efficiency of gene screening was greatly improved.Then,two attachment genes were selected as examples to further confirm the gene functions by constructing gene-knockout recombinant mutants of Stenotrophomonas maltophilia;when the two attachment genes were knocked out,the attachment potential was reduced by 50.67%and 43.93%,respectively.The results provide a new theoretical principle and efficient method for the development of AGS from the perspective of attachment genes. 展开更多
关键词 attachment gene Genome-wide sequence gene-knockout attachment potential Aerobic granular sludge biofilm
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