{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,10,9]],"date-time":"2024-10-09T18:40:03Z","timestamp":1728499203009},"reference-count":35,"publisher":"Public Library of Science (PLoS)","issue":"11","license":[{"start":{"date-parts":[[2022,11,29]],"date-time":"2022-11-29T00:00:00Z","timestamp":1669680000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>Two-component systems (TCSs) are widespread regulatory systems in bacteria, which control cellular functions and play an important role in sensing various external stimuli and regulating gene expression in response to environmental changes. Among the nineteen genes for the two-component system found in the whole genome of<jats:italic>Pseudomonas stutzeri<\/jats:italic>LH-42, one of the TCS coded by the<jats:italic>HK-1<\/jats:italic>gene, has a structural domain similar to the HAMP domain, which plays an important role in regulating bacterial virulence in other bacteria. In this study, the deletion mutant LH-42\u25b3<jats:italic>HK-1<\/jats:italic>was successfully constructed using the lambda Red recombinase system. Compared with the wild-type strain, the mutant strain LH-42\u25b3<jats:italic>HK-1<\/jats:italic>showed a significantly slower growth time and a longer stationary phase time. In addition, in the plate bacteriostatic experiment with<jats:italic>Escherichia coli<\/jats:italic>DH5\u03b1 as an indicator strain, the inhibition zone size of the mutant strain showed significantly less than the wild-type strain(P&lt;0.05), indicating that the virulence of the mutant strain was significantly reduced compared with the wild-type strain. Overall, the results indicate that the deletion of the gene<jats:italic>HK-1<\/jats:italic>decreased bacterial virulence in<jats:italic>Pseudomonas stutzeri<\/jats:italic>LH-42.<\/jats:p>","DOI":"10.1371\/journal.pone.0277089","type":"journal-article","created":{"date-parts":[[2022,11,29]],"date-time":"2022-11-29T18:29:17Z","timestamp":1669746557000},"page":"e0277089","update-policy":"http:\/\/dx.doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["The deletion of HK-1 gene affects the bacterial virulence of Pseudomonas stutzeri 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