Paenibacillus phyllosphaerae sp. nov., a xylanolytic bacterium isolated from the phyllosphere of Phoenix dactylifera

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Abstract
A bacterial strain, designated PALXIL04T, was isolated from the phyllosphere ofPhoenix dactylifera. Phylogenetic analysis placed the isolate within the genusPaenibacilluswith the closest relatives beingPaenibacillus curdlanolyticusandPaenibacillus kobensis. DNA–DNA hybridization measurements showed low DNA relatedness (15–20 %) between the isolate and its closest relatives. Cells were Gram-variable, facultatively anaerobic, motile, sporulating rods. Catalase and oxidase were produced by the organism. Cellulose, starch, aesculin and xylan were hydrolysed. Growth was supported by many carbohydrates as the carbon source. MK-7 was the predominant menaquinone and anteiso-C15 : 0the major fatty acid. The G+C content of the DNA was 50·7 mol%. Phylogenetic, DNA–DNA relatedness and phenotypic analyses indicated that strain PALXIL04Trepresents a novel species of the genusPaenibacillus, for which the namePaenibacillus phyllosphaeraesp. nov. is proposed. The type strain is PALXIL04T(=LMG 22192T=CECT 5862T).

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