Kitasatospora hibisci sp. nov., a novel actinomycete with antimicrobial potential isolated from rhizosphere soil of Hibiscus tiliaceus in Guangxi
文献类型： 外文期刊
作者： Xiao, Jinlan 1 ; Lin, Yongrui 2 ; Luo, Shenhao 1 ; Lu, Shiqi 1 ; Hong, Zhiwei 1 ; Wang, Jiyang 3 ; Guo, Zhikai 4 ; Zhou, Shuangqing 2 ; Huang, Xiaolong 1 ;
作者机构： 1.Hainan Univ, Sch Life & Hlth Sci, Hainan Int Hlth Inst 1, Haikou 570228, Peoples R China
2.Guilin Med Univ, Coll Pharm, Guilin 541199, Peoples R China
3.China Agr Univ, Dept Plant Pathol, State Key Lab Agr & Forestry Biosecur, Beijing 100193, Peoples R China
4.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Hainan Key Lab Trop Microbe Resources, Haikou 571101, Hainan, Peoples R China
5.Hainan Inst Trop Agr Resources, Key Lab Biol & Genet Resources Trop Crops Hainan P, Haikou 571101, Hainan, Peoples R China
关键词： antimicrobial potential; Hibiscus tiliaceus; Kitasatospora hibisci sp. nov.; polyphasic taxonomy
期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.0； 五年影响因子：2.2 ）
ISSN： 1466-5026
年卷期： 2025 年 75 卷 5 期
页码：
收录情况： SCI
摘要： A novel Kitasatospora strain, designated as HNM1077T, was isolated from rhizosphere soil of Hibiscus tiliaceus collected from the bank of the Beilun River in Dongxing City, Guangxi Province, China. The novel strain exhibited antimicrobial activity against a wide range of microbes, particularly Gram -negative bacteria and plant pathogenic fungi. Based on the alignment of 16S rRNA gene sequences, strain HNM1077T was closely related to Kitasatospora aburaviensis NRRL B- 2218T (99.51%). Comparisons based on genome sequencing showed that strain HNM1077T was distinguished from its nearest species by average nucleotide identity of 94.36% and a digital DNA-DNA hybridization value of 54.3%. The G+C content of strain HNM1077T was 73.1 mol%. The main fatty acids of strain HNM1077T were iso-C15:0 (21.5%), anteiso-C15:0 (11.7%), iso-C16:0 (8.6%), iso-C17:0 (9.3%) and anteiso-C17:0 (8.7%). The predominant menaquinone was MK- 9 (H8). The major polar lipids of strain HNM1077T consisted of phosphatidylethanolamine, phosphatidylinositol, diphosphatidylglycerol and glycosylphosphatidylinositol. Based on these polyphasic taxonomic results, strain HNM1077T represents a novel Kitasatospora species, for which the name Kitasatospora hibisci sp. nov. is proposed. The type strain is HNM1077T (=CCTCC AA 2024052T=KCTC 59330T).
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