来自纳米比亚的一种新型热核球菌的高质量基因组及其在高温下蛋白质表达模式的特征。

IF 3.9 3区 生物学 Q2 MICROBIOLOGY
Nathanael D. Arnold, Michael Paper, Tobias Fuchs, Nadim Ahmad, Patrick Jung, Michael Lakatos, Katia Rodewald, Bernhard Rieger, Farah Qoura, Martha Kandawa-Schulz, Norbert Mehlmer, Thomas B. Brück
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引用次数: 0

摘要

嗜热蓝藻在极端环境中茁壮成长,因此它们的耐热酶在工业应用中具有重要价值。常见的栖息地包括温泉,由于地理隔离,温泉成为物种进化的加速器。嗜热蓝藻科(Thermosynechococcaceae)由嗜热蓝藻组成,因其能够在高温环境中茁壮成长而闻名。这些细菌具有显著的光合作用能力,对极端栖息地的初级生产做出了重大贡献。高温蓝藻科(Thermosynechococcaceae)的成员表现出独特的适应能力,能在高温环境下高效地进行光合作用,因此成为微生物生态学、进化和潜在生物技术应用研究的热点。本研究使用 PacBio Sequel IIe 长读数平台对从纳米比亚 Okahandja 附近的温泉中分离出来的嗜热蓝藻的基因组进行了测序。在 40、50 和 55 摄氏度的高温下进行培养,然后根据注释的基因组进行蛋白质组分析。根据 16S rRNA 基因和对齐核苷酸同一性(ANI)进行的系统发育研究表明,该新型蓝藻属于热核球菌科。此外,该新物种被归入一个独立的分支,可能代表一个新的属。全基因组比对证实了这一发现,发现了少数保守区域和多个基因重排事件。此外,还确定了 129 种蛋白质以温度依赖的方式进行差异表达。这项研究的结果拓宽了我们对蓝藻适应极端环境的认识,提供了热核蓝藻属蓝藻孢子 Okahandja 的高质量新基因组,并为表达和特征研究提供了几个有希望的候选蛋白质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High-quality genome of a novel Thermosynechococcaceae species from Namibia and characterization of its protein expression patterns at elevated temperatures

Thermophilic cyanobacteria thrive in extreme environments, making their thermoresistant enzymes valuable for industrial applications. Common habitats include hot springs, which act as evolutionary accelerators for speciation due to geographical isolation. The family Thermosynechococcaceae comprises thermophilic cyanobacteria known for their ability to thrive in high-temperature environments. These bacteria are notable for their photosynthetic capabilities, significantly contributing to primary production in extreme habitats. Members of Thermosynechococcaceae exhibit unique adaptations that allow them to perform photosynthesis efficiently at elevated temperatures, making them subjects of interest for studies on microbial ecology, evolution, and potential biotechnological applications. In this study, the genome of a thermophilic cyanobacterium, isolated from a hot spring near Okahandja in Namibia, was sequenced using a PacBio Sequel IIe long-read platform. Cultivations were performed at elevated temperatures of 40, 50, and 55°C, followed by proteome analyses based on the annotated genome. Phylogenetic investigations, informed by the 16S rRNA gene and aligned nucleotide identity (ANI), suggest that the novel cyanobacterium is a member of the family Thermosynechococcaceae. Furthermore, the new species was assigned to a separate branch, potentially representing a novel genus. Whole-genome alignments supported this finding, revealing few conserved regions and multiple genetic rearrangement events. Additionally, 129 proteins were identified as differentially expressed in a temperature-dependent manner. The results of this study broaden our understanding of cyanobacterial adaptation to extreme environments, providing a novel high-quality genome of Thermosynechococcaceae cyanobacterium sp. Okahandja and several promising candidate proteins for expression and characterization studies.

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来源期刊
MicrobiologyOpen
MicrobiologyOpen MICROBIOLOGY-
CiteScore
8.00
自引率
0.00%
发文量
78
审稿时长
20 weeks
期刊介绍: MicrobiologyOpen is a peer reviewed, fully open access, broad-scope, and interdisciplinary journal delivering rapid decisions and fast publication of microbial science, a field which is undergoing a profound and exciting evolution in this post-genomic era. The journal aims to serve the research community by providing a vehicle for authors wishing to publish quality research in both fundamental and applied microbiology. Our goal is to publish articles that stimulate discussion and debate, as well as add to our knowledge base and further the understanding of microbial interactions and microbial processes. MicrobiologyOpen gives prompt and equal consideration to articles reporting theoretical, experimental, applied, and descriptive work in all aspects of bacteriology, virology, mycology and protistology, including, but not limited to: - agriculture - antimicrobial resistance - astrobiology - biochemistry - biotechnology - cell and molecular biology - clinical microbiology - computational, systems, and synthetic microbiology - environmental science - evolutionary biology, ecology, and systematics - food science and technology - genetics and genomics - geobiology and earth science - host-microbe interactions - infectious diseases - natural products discovery - pharmaceutical and medicinal chemistry - physiology - plant pathology - veterinary microbiology We will consider submissions across unicellular and cell-cluster organisms: prokaryotes (bacteria, archaea) and eukaryotes (fungi, protists, microalgae, lichens), as well as viruses and prions infecting or interacting with microorganisms, plants and animals, including genetic, biochemical, biophysical, bioinformatic and structural analyses. The journal features Original Articles (including full Research articles, Method articles, and Short Communications), Commentaries, Reviews, and Editorials. Original papers must report well-conducted research with conclusions supported by the data presented in the article. We also support confirmatory research and aim to work with authors to meet reviewer expectations. MicrobiologyOpen publishes articles submitted directly to the journal and those referred from other Wiley journals.
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