دورية أكاديمية
Low Salt Influences Archaellum-Based Motility, Glycerol Metabolism, and Gas Vesicles Biogenesis in Halobacterium salinarum
| العنوان: | Low Salt Influences Archaellum-Based Motility, Glycerol Metabolism, and Gas Vesicles Biogenesis in Halobacterium salinarum |
|---|---|
| المؤلفون: | Evelyn Ayumi Onga, Ricardo Z. N. Vêncio, Tie Koide |
| المصدر: | Microorganisms, Vol 10, Iss 12, p 2442 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Biology (General) |
| مصطلحات موضوعية: | salt stress response, Halobacterium salinarum NRC-1, transcriptome proteome comparison, low salt, Biology (General), QH301-705.5 |
| الوصف: | Halobacterium salinarum NRC-1 is an extremophile that grows optimally at 4.3 M NaCl concentration. In spite of being an established model microorganism for the archaea domain, direct comparisons between its proteome and transcriptome during osmotic stress are still not available. Through RNA-seq-based transcriptomics, we compared a low salt (2.6 M NaCl) stress condition with 4.3 M of NaCl and found 283 differentially expressed loci. The more commonly found classes of genes were: ABC-type transporters and transcription factors. Similarities, and most importantly, differences between our findings and previously published datasets in similar experimental conditions are discussed. We validated three important biological processes differentially expressed: gas vesicles production (due to down-regulation of gvpA1b, gvpC1b, gvpN1b, and gvpO1b); archaellum formation (due to down-regulation of arlI, arlB1, arlB2, and arlB3); and glycerol metabolism (due to up-regulation of glpA1, glpB, and glpC). Direct comparison between transcriptomics and proteomics showed 58% agreement between mRNA and protein level changes, pointing to post-transcriptional regulation candidates. From those genes, we highlight rpl15e, encoding for the 50S ribosomal protein L15e, for which we hypothesize an ionic strength-dependent conformational change that guides post-transcriptional processing of its mRNA and, thus, possible salt-dependent regulation of the translation machinery. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2076-2607 |
| العلاقة: | https://www.mdpi.com/2076-2607/10/12/2442Test; https://doaj.org/toc/2076-2607Test |
| DOI: | 10.3390/microorganisms10122442 |
| الوصول الحر: | https://doaj.org/article/5a002e004c244e2694f137eaf07e286cTest |
| رقم الانضمام: | edsdoj.5a002e004c244e2694f137eaf07e286c |
| قاعدة البيانات: | Directory of Open Access Journals |
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