Paenibacillus campi sp. nov., a novel endophytic bacterium isolated from Pennisetum species

文献类型： 外文期刊

第一作者： Yao, Ling

作者： Yao, Ling;Xie, Cheng-Jie;Gao, Peng;Zhang, Shu-Qun;Zhou, Shun-Gui;Rao, Manik Prabhu Narsing;Liu, Guo-Hong

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关键词： endophytic bacterium; Paenibacillus campi 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 3 期

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收录情况： SCI

摘要： Two facultatively aerobic, Gram- stain- positive, rod- shaped, endospore- forming, endophytic bacteria, designated SGZ- 1009T and SGZ- 1014, were isolated from the plant Pennisetum sp. Strain SGZ- 1009T grew at 5-50 degrees C, pH 4.5-11.0 and tolerated up to 4.5% NaCl (w/v), while strain SGZ- 1014 exhibited growth at a temperature range of 10-50 degrees C, pH range 4.5-11.0 and tolerated up to 4.5% NaCl. Phylogenetic analysis based on 16S rRNA gene sequences indicated that these two strains belong to the genus Paenibacillus, closely related to the reference type strain of Paenibacillus wenxiniae DSM 100576T (similarity of 97.0%). The genomic relatedness values for both strains, SGZ- 1009T and SGZ- 1014, compared to their closest reference strain P. wenxiniae DSM 100576T, were 81.6% for average nucleotide identity and 26.0% for digital DNA-DNA hybridization, suggesting strain SGZ-1009T represents a novel species. The genomic DNA G+C content of strain SGZ- 1009T was 46.4%. Both strains shared anteiso-C15:0 (55.9%) as the predominant fatty acid, menaquinone- 7 as the major respiratory quinone and diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine as the major polar lipids. Based on these results, strains SGZ- 1009T and SGZ- 1014 represent a novel species of Paenibacillus, for which the name Paenibacillus campi sp. nov. is proposed. The type strain is SGZ- 1009T (=MCCC 1K08892T=GDMCC 1.4280T=KCTC 43677T=JCM 36670T).

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