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Paenibacillus allorhizosphaerae sp. nov., from soil of the rhizosphere of Zea mays

Abstract : A Gram-stain-positive, aerobic, endospore-forming bacterial strain, isolated from the rhizosphere of Zea mays , was studied for its detailed taxonomic allocation. Based on 16S rRNA gene sequence similarity comparisons, strain JJ-447 T was shown to be a member of the genus Paenibacillus , most closely related to the type strain of Paenibacillus solanacearum (97.8 %). The 16S rRNA gene sequence similarity values to all other Paenibacillus species were below 97.0 %. DNA–DNA hybridization (DDH) values with the type strain of P. solanacearum were 35.9 % (reciprocal 27%), respectively. The average nucleotide identity and in silico DDH values with the type strain of P. solanacearum were 84.86 and 28.9 %, respectively. The quinone system of strain JJ-447 T consisted exclusively of menaquinones and the major component was MK-7 (96.4 %) but minor amounts of MK–6 (3.6 %) were detected as well. The polar lipid profile consisted of the major components diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and an unidentified aminolipid. Major fatty acids were iso- and anteiso-branched with the major compounds anteiso-C 15 : 0 and iso-C 15 : 0 . Physiological and biochemical characteristics allowed a further phenotypic differentiation of strain JJ-447 T from the most closely related species on the basis of d -glucose, l -arabinose and d -mannose assimilation and other physiological tests. Thus, JJ-447 T represents a novel species of the genus Paenibacillus , for which the name Paenibacillus allorhizosphaerae sp. nov. is proposed, with JJ-447 T (=LMG 31601 T =CCM 9021 T =CIP 111802 T ) as the type strain.
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Submitted on : Thursday, September 29, 2022 - 10:58:15 AM
Last modification on : Wednesday, October 5, 2022 - 3:20:23 AM

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Peter Kämpfer, Hans-Jürgen Busse, John Mcinroy, Dominique Clermont, Alexis Criscuolo, et al.. Paenibacillus allorhizosphaerae sp. nov., from soil of the rhizosphere of Zea mays. International Journal of Systematic and Evolutionary Microbiology, 2021, 71 (10), ⟨10.1099/ijsem.0.005051⟩. ⟨pasteur-03791388⟩

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