1887

Abstract

The taxonomic positions of three actinomycete isolates, K08-0175, K10-0543 and K12-0791, which were isolated from plant root and rhizospheric soil samples were subjected to a polyphasic taxonomic study. On the basis of the results of phylogenetic analysis and morphological and chemotaxonomic characteristics, these three strains were classified as representing members of the genus Kibdelosporangium . These strains were observed to produce both long chains of rod-shaped spores and sporangium-like structures with well-defined walls on aerial hyphae. Phylogenetic position, DNA–DNA hybridization and comparison of the phylogenetically closest relatives revealed that these three strains were clearly distinguishable from each other and from their closest phylogenetic relatives. Therefore, three novel species are proposed as Kibdelosporangium kanagawaense sp. nov. [type strain K08-0175 (=NBRC 112388=TBRC 6786)], Kibdelosporangium rhizosphaerae sp. nov. [type strain K10-0543 (=NBRC 112389=TBRC 6787)] and Kibdelosporangium rhizovicinum sp. nov. [type strain K12-0791 (=NBRC 112390=TBRC 6788)].

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2017-06-09
2019-12-05
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