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Dissemination of Genetic Acquisition/Loss Provides a Variety of Quorum Sensing Regulatory Properties in Pseudoalteromonas

التفاصيل البيبلوغرافية
العنوان: Dissemination of Genetic Acquisition/Loss Provides a Variety of Quorum Sensing Regulatory Properties in Pseudoalteromonas
المؤلفون: Zhiliang Yu, Yajuan Ding, Jianhua Yin, Dongliang Yu, Jiadi Zhang, Mengting Zhang, Mengdan Ding, Weihong Zhong, Juanping Qiu, Jun Li
المصدر: International Journal of Molecular Sciences, Vol 19, Iss 11, p 3636 (2018)
بيانات النشر: MDPI AG, 2018.
سنة النشر: 2018
المجموعة: LCC:Biology (General)
LCC:Chemistry
مصطلحات موضوعية: quorum sensing, Pseudoalteromonas, regulatory architecture, dissemination, horizontal transfer, Biology (General), QH301-705.5, Chemistry, QD1-999
الوصف: Quorum sensing (QS) enables single-celled bacteria to communicate with chemical signals in order to synchronize group-level bacterial behavior. Pseudoalteromonas are marine bacteria found in versatile environments, of which QS regulation for their habitat adaptation is extremely fragmentary. To distinguish genes required for QS regulation in Pseudoalteromonas, comparative genomics was deployed to define the pan-genomics for twelve isolates and previously-sequenced genomes, of which acyl-homoserine lactone (AHL)-based QS traits were characterized. Additionally, transposon mutagenesis was used to identify the essential QS regulatory genes in the selected Pseudoalteromonas isolate. A remarkable feature showed that AHL-based colorization intensity of biosensors induced by Pseudoalteromonas most likely correlates with QS regulators genetic heterogeneity within the genus. This is supported by the relative expression levels of two of the main QS regulatory genes (luxO and rpoN) analyzed in representative Pseudoalteromonas isolates. Notably, comprehensive QS regulatory schema and the working model proposed in Pseudoalteromonas seem to phylogenetically include the network architectures derived from Escherichia coli, Pseudomonas, and Vibrio. Several associated genes were mapped by transposon mutagenesis. Among them, a right origin-binding protein-encoding gene (robp) was functionally identified as a positive QS regulatory gene. This gene lies on a genomic instable region and exists in the aforementioned bioinformatically recruited QS regulatory schema. The obtained data emphasize that the distinctly- and hierarchically-organized mechanisms probably target QS association in Pseudoalteromonas dynamic genomes, thus leading to bacterial ability to accommodate their adaption fitness and survival advantages.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1422-0067
Relation: https://www.mdpi.com/1422-0067/19/11/3636; https://doaj.org/toc/1422-0067
DOI: 10.3390/ijms19113636
URL الوصول: https://doaj.org/article/87cbb803464f4d8d88884dc831f197b3
رقم الأكسشن: edsdoj.87cbb803464f4d8d88884dc831f197b3
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:14220067
DOI:10.3390/ijms19113636