Paenibacillus puerhi sp. nov., isolated from the rhizosphere soil of Pu-erh tea plants (Camellia sinensis var. assamica)

An aerobic, Gram-staining-positive, rod-shaped, endospore-forming and motile bacterial strain, designated SJY2(T), was isolated from the rhizosphere soil of tea plants (Camellia sinensis var. assamica) collected in the organic tea garden of the Jingmai Pu-erh tea district in Pu'er city, Yunnan, southwest China. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate belonged to the genus Paenibacillus. The closest phylogenetic relative was Paenibacillus filicis DSM 23916(T) (98.1% similarity). The major fatty acids (> 10% of the total fatty acids) were anteiso-C-15:0 and isoC(16:0). The major respiratory quinone was MK-7 and the major polar lipid was diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and phosphatidylmonomethylethanolamine. The peptidoglycan contained glutamic acid, serine, alanine and meso-diaminopimelic acid. Genome sequencing revealed a genome size of 6.71 Mbp and a G + C content of 53.1%. Pairwise determined whole genome average nucleotide identity (gANI) values and digital DNA-DNA hybridization (dDDH) values suggested that strain SJY2(T) represents a new species, for which we propose the name Paenibacillus puerhi sp. nov. with the type strain SJY2(T) (= CGMCC 1.17156(T) = KCTC 43242(T)).

Automated summary

A new Paenibacillus species, Paenibacillus puerhi sp. nov., was isolated from the rhizosphere soil of tea plants in the Jingmai Pu-erh tea district in Pu'er city, Yunnan, China. Phylogenetic analysis and genome sequencing confirmed its distinction as a new species.