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Lederbergia citri sp. nov., and Lederbergia citrisecundus sp. nov., isolated from citrus rhizosphere

文献类型： 外文期刊

作者： Liu, Guo-Hong 1 ; Rao, Manik Prabhu Narsing 2 ; Chen, Qian-Qian 1 ; Che, Jian-Mei 1 ; Shi, Huai 1 ; Liu, Bo 1 ; Li, Wen-Jun 2 ;

作者机构： 1.Fujian Acad Agr Sci, Agr Bioresources Inst, Fuzhou 350003, Fujian, Peoples R China

2.Sun Yat Sen Univ, Sch Life Sci, State Key Lab Biocontrol, Guangdong Prov Key Lab Plant Resources, Guangzhou 510275, Peoples R China

3.Sun Yat Sen Univ, Sch Life Sci, Southern Marine Sci & Engn Guangdong Lab Zhuhai, Guangzhou 510275, Peoples R China

期刊名称：CURRENT MICROBIOLOGY （ 影响因子：2.343； 五年影响因子：2.408 ）

ISSN： 0343-8651

年卷期： 2022 年 79 卷 2 期

页码：

收录情况： SCI

摘要： Two Gram-positive, rod-shaped, motile, endospore-forming strains, FIAT-49780(T) and FIAT-49732(T) were isolated from a citrus rhizosphere soil sample. The optimal growth temperatures for strains FIAT-49780(T) and FIAT-49732(T) were 45 and 35-40 degrees C, respectively. The optimal growth pH for strains FIAT-49732(T) and FIAT-49780(T) were pH 8.0 and pH 6.0, respectively. The 16S rRNA gene sequence similarity between FIAT-49780(T) and FIAT-49732(T) was 98.6%. Strains FIAT-49780(T) and FIAT-49732(T) shared 97.9-98.4% 16S rRNA gene sequence similarities to the type strain of Lederbergia wuyishanensis. In phylogenetic trees (based on 16S rRNA gene sequence), strains FIAT-49732(T) and FIAT-49780(T) Glade with Lederbergia members. Both strains contained meso-diaminopimelic acid in their cell-wall peptidoglycan and MK-7 was the only isoprenoid quinone detected. The major fatty acids of strains FIAT-49732(T) and FIAT-49780(T) were anteiso-C-15:0 and iso-C-15:0. The polar lipids of strain FIAT-49780(T) were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, an unidentified aminophospholipid, unidentified phospholipid and unidentified lipids while strain FIAT-49732(T) contained diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, an unidentified glycolipid, unidentified aminolipid and unidentified phospholipid. The genomic DNA G+C content of strains FIAT-49780(T) and FIAT-49732(T) were 37.0 and 36.7%, respectively. The digital DNA-DNA hybridization and average nucleotide identity values between strains FIAT-49780(T) and FIAT-49732(T) and with other members of the genus Lederbergia were below the cut-off level for species delineation. Thus, based on the above results, strains FIAT-49780(T) and FIAT-49732(T) represent two novel species of the genus Lederbergia, for which the names Lederbergia citri sp. nov., and Lederbergia citrisecundus sp. nov., are proposed. The type strains are FIAT-49780(T) (=CCTCC AB 2019242(T)=LMG 31583(T)) and FIAT-49732(T) (=CCTCC AB 2019246(T)=LMG 31584(T)).

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