New Records of Two Species Belonging to Family Powellomycetaceae from Island in Korea
New Records of Two Species Belonging to Family Powellomycetaceae from Island in Korea
Dong Hee Kim, Sun Jeong Jeon and Hyang Burm Lee*
Environmental Microbiology Lab, Dept. of Agricultural Biological Chemistry, College of Agriculture & Life Sciences, Chonnam National University, Gwangju 61186, Korea;
*Email:hblee@jnu.ac.kr
Powellomycetaceae is a family of soil-inhabiting chytrids that have a worldwide distribution. Currently, the family has been known to consist of 4 genera and 9 species. However, no members of Powellomycetaceae have been reported in Korea up to now. During a study of chytrid fungal diversity from islands in Korea, two species belonging to family Powellomycetaceae, CNUFC-CHS41-1 and CNUFC-CHS41-2 were isolated from soil samples collected at Jeobdo Island in Korea. Sequence analysis by BLASTn search indicated that the isolates, CNUFC-CNUFC-CHS41-1 and CNUFC-CHS41-2 were closest to Fimicolochytrium alabamae (GenBank accession no. NG_060390) and Powellomyces hirtus (GenBank accession no. JN941005), with identity values of 100 % (900/900 bp), and 100 % (950/950 bp), respectively. Optical microscope observations revealed Sporangium spherical with a single discharge pore, rhizoids, motility zoospore. Based on the morphological characteristics and phylogenetic analyses of large subunit (LSU) and small subunit (SSU), the strains of CNUFC-CHS41-1 and CNUFC-CHS41-2 were identified as Fimicolochytrium alabamae and Powellomyces hirtus, respectively. Herein, their detailed morphological descriptions and phylogenetic trees are provided in this poster.
