Planotetraspora kaengkrachanensis sp. nov. and Planotetraspora phitsanulokensis sp. nov., isolated from soil

Author:

Suriyachadkun Chanwit12,Chunhametha Suwanee1,Thawai Chitti3,Tamura Tomohiko4,Potacharoen Wanchern1,Kirtikara Kanyawim1,Sanglier Jean-Jacques51,Kitpreechavanich Vichien2

Affiliation:

1. Bioresources Technology Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, 113 Thailand Science Park, Phaholyothin Road, Klong 1, Klong Luang, Pathumthani 12120, Thailand

2. Faculty of Science, Kasetsart University, Bangkok 10900, Thailand

3. Department of Applied Biology, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand

4. Biological Resource Center, National Institute of Technology and Evaluation, 2-5-8 Kazusakamatari, Kisarazu, Chiba 292-0812, Japan

5. Novartis Institutes for BioMedical Research Basel, Natural Products Unit, Novartis Pharma AG, Basel, Switzerland

Abstract

Two novel bacterial strains were isolated from tropical rain forest soil from Thailand. Strains A-T 0875T and A-T 1383T stained Gram-positive and were filamentous bacteria that developed cylindrical sporangia containing four oval- to rod-shaped spores at the ends of short sporangiophores on branched aerial mycelium. The cell-wall peptidoglycan contained meso-diaminopimelic acid, glutamic acid and alanine as cell-wall amino acids; whole-cell hydrolysates contained rhamnose, madurose, glucose, galactose and 3-O-methylmannose as whole-cell sugars. The predominant menaquinone was MK-9(H4). Mycolic acids were not detected. The diagnostic phospholipid was phosphatidylethanolamine. The predominant cellular fatty acids were iso-C16 : 0 and 10-methyl-C17 : 0. For both strains, the G+C content of the genomic DNA was 71 mol%. Phenotypic and chemotaxonomic analyses showed that the characteristics of the two isolates were typical of members of the genus Planotetraspora. Furthermore, 16S rRNA gene sequence analysis also indicated that the strains belonged to the genus Planotetraspora but as representatives of two novel species. Following an evaluation of our phenotypic, chemotaxonomic and genotypic studies, two novel species are proposed, Planotetraspora kaengkrachanensis sp. nov. (type strain A-T 0875T=BCC 24832T=NBRC 104272T) and Planotetraspora phitsanulokensis sp. nov. (type strain A-T 1383T=BCC 26045T=NBRC 104273T).

Publisher

Microbiology Society

Subject

General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology

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