Population genomics-guided engineering of phenazine biosynthesis in Pseudomonas chlororaphis
Population genomics-guided engineering of phenazine biosynthesis in Pseudomonas chlororaphis
复制标题
群体基因组学指导的绿针假单胞菌吩嗪生物合成工程
DOI:
10.1016/j.ymben.2023.06.008
复制
发表时间:
2023
影响因子:
8.4
通讯作者:
Wheeldon, Ian
中科院分区:
文献类型:
--
作者:
Thorwall, Sarah;Trivedi, Varun;Ottum, Eva;Wheeldon, Ian
The emergence of next-generation sequencing (NGS) technologies has made it possible to not only sequence entire genomes, but also identify metabolic engineering targets across the pangenome of a microbial population. This study leverages NGS data as well as existing molecular biology and bioinformatics tools to identify and validate genomic signatures for improving phenazine biosynthesis inPseudomonas chlororaphis. We sequenced a diverse collection of 34Pseudomonasisolates using short- and long-read sequencing techniques and assembled whole genomes using the NGS reads. In addition, we assayed three industrially relevant phenotypes (phenazine production, biofilm formation, and growth temperature) for these isolates in two different media conditions. We then provided the whole genomes and phenazine production data to a unitig-based microbial genome-wide association study (mGWAS) tool to identify novel genomic signatures responsible for phenazine production inP. chlororaphis. Post-processing of the mGWAS analysis results yielded 330 significant hits influencing the biosynthesis of one or more phenazine compounds. Based on a quantitative metric (called the phenotype score), we elucidated the most influential hits for phenazine production and experimentally validated themin vivoin the most optimal phenazine producing strain. Two genes significantly increased phenazine-1-carboxamide (PCN) production: a histidine transporter (ProY_1), and a putative carboxypeptidase (PS__04251). A putative MarR-family transcriptional regulator decreased PCN titer when overexpressed in a high PCN producing isolate. Overall, this work seeks to demonstrate the utility of a population genomics approach as an effective strategy in enabling the identification of targets for metabolic engineering of bioproduction hosts.
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DOI:
--
发表时间:
1956
期刊:
影响因子:
--
作者:
W. Haynes;F. Stodola;J. M. Locke;T. G. Pridham;H. Conway;V. Sohns;R. W. Jackson
通讯作者:
R. W. Jackson
影响因子:
3
作者:
G. Kaur;Srikrishna Subramanian
通讯作者:
Srikrishna Subramanian
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
V. Rimsa;T. Eadsforth;R. Joosten;W. Hunter
通讯作者:
W. Hunter
影响因子:
5.1
作者:
Xue‐Xian Zhang;Hao Chang;Sieu L. Tran;J. Gauntlett;G. Cook;P. Rainey
通讯作者:
P. Rainey
影响因子:
46.9
作者:
Kolmogorov, Mikhail;Yuan, Jeffrey;Pevzner, Pavel A.
通讯作者:
Pevzner, Pavel A.