Park Sunho, Kim Inhyup, Chhetri Geeta, Jung Yonghee, Woo Haejin, Seo Taegun
Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea.
Life (Basel). 2024 Feb 22;14(3):296. doi: 10.3390/life14030296.
Gram-negative, rod-shaped, and aerobic bacteria designated chi1 and chi5 were isolated from the root of Makino. Phylogenetics utilizing 16S rRNA and whole-genome sequences of the two novel strains chi1 and chi5 confirmed that they were related to the genera and , respectively. For the novel strains chi1 and chi5, the digital DNA-DNA hybridization values (19-20% and 22.1-36.6%, respectively) and average nucleotide identity values (74.4-76.5% and 79.1-88.9%, respectively) fell within the range for the genera and , respectively. Pangenome analyses of the novel strains chi1 and chi5 revealed 357 and 368 singletons genes, respectively. The genomic DNA G + C contents of the strains chi1 and chi5 were 57.2% and 31.5%, respectively. The major fatty acids of strain chi1 were C, C, and summed feature 3 (C6 and/or C7), while those of the strain chi5 were iso-C 3OH, iso-C 3OH, and iso-C. Data from the phylogenetic, phylogenomic, pangenome, genomic, physiological, and biochemical analyses indicated that the novel strains were distinct. Therefore, we propose the names (type strain chi1 = KACC 23259 = TBRC 17652) and (type strain chi5 = KACC 23262 = TBRC 17900) for the studied bacterial strains.
从牧野草根部分离出革兰氏阴性、杆状且需氧的细菌,分别命名为chi1和chi5。利用两种新菌株chi1和chi5的16S rRNA和全基因组序列进行系统发育分析,证实它们分别与属和属相关。对于新菌株chi1和chi5,数字DNA-DNA杂交值(分别为19 - 20%和22.1 - 36.6%)和平均核苷酸同一性值(分别为74.4 - 76.5%和79.1 - 88.9%)分别落在属和属的范围内。对新菌株chi1和chi5的泛基因组分析分别揭示了357个和368个单拷贝基因。菌株chi1和chi5的基因组DNA G + C含量分别为57.2%和31.5%。菌株chi1的主要脂肪酸为C、C和总和特征3(C6和/或C7),而菌株chi5的主要脂肪酸为异-C 3OH、异-C 3OH和异-C。系统发育、系统基因组、泛基因组、基因组、生理和生化分析的数据表明这些新菌株是不同的。因此,我们为所研究的细菌菌株提议命名为(模式菌株chi1 = KACC 23259 = TBRC 17652)和(模式菌株chi5 = KACC 23262 = TBRC 17900)。