title: Streptomyces phyllanthi sp. nov., isolated from the stem of Phyllanthus amarus.
abstract: The novel endophytic actinomycete strain PA1-07T was isolated from the stem of Phyllanthus amarus. The strain displayed the consistent characteristics of members of the genus Streptomyces. The strain produced short spiral spore chains on aerial mycelia. It grew at pH 5-9, at 40 °C and with a maximum of 5 % (w/v) NaCl. It contained ll-diaminopimelic acid, glucose and ribose in the whole-cell hydrolysate. The major cellular menaquinones were MK-9(H4), MK-9(H6) and MK-9(H8), while the major cellular fatty acids were C16 : 0, iso-C14 : 0, iso-C16 : 0 and anteiso-C15 : 0. The polar lipids were composed of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol mannoside and four unknown lipids. The DNA G+C content of the strain was 71 mol%. The strain showed the highest 16S rRNA gene sequence similarity with Streptomyces curacoi JCM 4219T (98.77 %). The DNA-DNA relatedness values between strain PA1-07T and S. curacoi JCM 4219T were lower than 70 %, the cut-off level for assigning strains to the same species. On the basis of these phenotypic and genotypic characteristics, the strain could be distinguished from closely related species of the genus Streptomyces and thus represents a novel species of the genus Streptomyces, for which the name Streptomyces phyllanthi sp. nov. is proposed. The type strain is PA1-07T (=JCM 30865T=KCTC 39785T=TISTR 2346T).
authors.affiliation: Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
authors.forename: Nattaporn
authors.initials: N
authors.lastname: Klykleung
authors.affiliation: Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
authors.forename: Wongsakorn
authors.initials: W
authors.lastname: Phongsopitanun
authors.affiliation: National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathumthani 12120, Thailand.
authors.forename: Pattama
authors.initials: P
authors.lastname: Pittayakhajonwut
authors.affiliation: Japan Collection of Microorganisms, RIKEN BioResource Center, 3-1-1 Koyadai, Tsukuba, Ibaraki 305-0074, Japan.
authors.forename: Moriya
authors.initials: M
authors.lastname: Ohkuma
authors.affiliation: Japan Collection of Microorganisms, RIKEN BioResource Center, 3-1-1 Koyadai, Tsukuba, Ibaraki 305-0074, Japan.
authors.forename: Takuji
authors.initials: T
authors.lastname: Kudo
authors.affiliation: Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
authors.forename: Somboon
authors.initials: S
authors.lastname: Tanasupawat
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000235:genetics; D003960:Diaminopimelic Acid / Q000737:chemistry; D005227:Fatty Acids / Q000737:chemistry; D009693:Nucleic Acid Hybridization; D010743:Phospholipids / Q000737:chemistry; D029803:Phyllanthus / Q000382:microbiology*; D010802:Phylogeny; D018547:Plant Stems / Q000382:microbiology*; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D013302:Streptomyces / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D013785:Thailand; D024482:Vitamin K 2 / Q000031:analogs & derivatives / Q000737:chemistry
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D010743:Phospholipids; D012336:RNA, Ribosomal, 16S; D024482:Vitamin K 2; C024223:vitamin MK 8; C073355:menaquinone 9; D003960:Diaminopimelic Acid