Open AccessPhylogenetic diversity of thermophilic actinomycetes and Thermoactinomyces spp. isolated from mushroom composts in Korea based on 16S rRNA gene sequence analysis
Author(s) -
Song Jaekyeong,
Weon HangYeon,
Yoon SangHong,
Park DongSuk,
Go SeungJoo,
Suh JooWon
Publication year - 2001
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2001.tb10786.x
Subject(s) - biology , 16s ribosomal rna , phylogenetic tree , streptomyces , phylogenetic diversity , actinomycetales , thermophile , botany , ribosomal rna , streptomycetaceae , phylogenetics , microbiology and biotechnology , bacteria , genetics , gene
Forty one strains isolated from 21 samples of various mushroom composts in Korea were analyzed by 16S rRNA gene sequencing to investigate the phylogenetic diversity of thermophilic actinomycetes. The 25 strains of thermophilic actinomycete isolates were related to the five genera, Pseudonocardia , Saccharomonospora , Saccharopolyspora , Streptomyces , and Thermobifida , within the order Actinomycetales , and 16 strains were classified into the genus Thermoactinomyces within the family Bacillaceae . Most of 41 isolates were encompassed by two genera, Streptomyces and Thermoactinomyces , that were isolated mainly in composts prepared from waste cotton and hay, respectively. Among them, M104 and M109 were placed in distinct taxonomic positions although these strains formed phylogenetic lineages related to the genus Streptomyces and to the family Streptosporangiaceae , respectively. Therefore, a phenetic and genetic characterization of these strains will be needed to pinpoint their taxonomic position.