1887

Abstract

A Gram-positive-staining, aerobic organism, isolated from the rhizosphere of Zea mays, was investigated in detail. Based on 16S rRNA gene sequence similarity comparisons, strain JJ-247 was grouped into the genus Bacillus , most closely related to Bacillus foraminis (98.4 %). The 16S rRNA gene sequence similarity to the sequences of the type strains of other species of the genus Bacillus was <97.4 %. The fatty acid profile with the major fatty acids, anteiso-C15 : 0, iso-C15 : 0, iso-C14 : 0 and iso-C16 : 0 supported the grouping of the strain to the genus Bacillus . The polar lipid profile contained the major components diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and an unidentified aminophospholipid. The major quinone was menaquinone MK-7, and the major polyamine was spermidine. The genomic DNA G+C content of strain JJ-247 was 44.5 mol%. DNA–DNA hybridizations with the type strain B. foraminis LMG 23147 resulted in values below 70 %. In addition, physiological and biochemical test results allowed a clear phenotypic differentiation of strain JJ-247 from B. foraminis . As a consequence, JJ-247 represents a novel species of the genus Bacillus , for which we propose the name Bacillus zeae sp. nov., with JJ-247 (=CCM 8726=LMG 29876) as the type strain.

Keyword(s): Bacillus , taxonomy and zeae
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2017-05-30
2019-10-17
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