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sp. nov.,分离自农业土壤并参与木质纤维素的解构。

sp. nov., isolated from agricultural soil and involved in lignocellulose deconstruction.

机构信息

Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, Chaire AFERE, 51097 Reims, France.

出版信息

Int J Syst Evol Microbiol. 2021 Aug;71(8). doi: 10.1099/ijsem.0.004963.

Abstract

A bacterial strain, arapr2, was isolated from agricultural soil sampled in Reims, France. Based on its 16S rRNA gene sequence, the strain was affiliated to the family and more specifically to the genus . The strain had 98.31 % 16S rRNA gene sequence similarity to its closest relative CR11 and 98.25 % to NCCP-246. Genome relatedness indexes revealed that the average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values between arapr2 and its closest relative ( CR11) were 92.97 % and 52.00 %, respectively; for NCCP-246, the ANI and dDDH values were 82.46 and 27.6%, respectively. The genomic DNA of strain arapr2 was 6.02 Mbp long, had a DNA G+C content of 40.4 mol% and had 5504 protein-coding genes. The results obtained in this study suggests that strain arapr2 (CIP 111872=LMG 31848) represents a new species for which the name sp. nov. is proposed. Due to the fact that this strain has been isolated using wheat straw as carbon source, this novel bacterial strain represents a promising biotechnological tool for the fractionation of lignocellulosic biomass in the context of biorefinery development.

摘要

一株细菌菌株 arapr2 从法国兰斯采集的农业土壤中分离得到。基于其 16S rRNA 基因序列,该菌株与 科,更具体地说,与属有关。该菌株与最近的亲缘关系菌株 CR11 的 16S rRNA 基因序列相似性为 98.31%,与 NCCP-246 的相似性为 98.25%。基因组相关性指数显示,arapr2 与其最接近的亲缘关系菌株(CR11)之间的平均核苷酸同一性(ANI)和数字 DNA-DNA 杂交(dDDH)值分别为 92.97%和 52.00%;与 NCCP-246 的 ANI 和 dDDH 值分别为 82.46%和 27.6%。菌株 arapr2 的基因组 DNA 长 6.02 Mbp,GC 含量为 40.4 mol%,含有 5504 个编码蛋白的基因。本研究结果表明,菌株 arapr2(CIP 111872=LMG 31848)代表了一个新的物种,建议将其命名为 sp. nov.。由于该菌株是使用麦秸作为碳源分离得到的,因此这种新型细菌菌株代表了生物炼制发展中木质纤维素生物质分离的有前途的生物技术工具。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1171/8513620/df4c93304845/ijsem-71-4963-g001.jpg

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