The rust fungus Gymnosporangium in Korea including two new species, G. monticola and G. unicorne.
A survey was conducted of the rust fungus Gymnosporangium in Korea. We recollected previously known species, namely Gymnosporangium asiaticum, G. clavariiforme, G. globosum, G. japonicum and G. yamadae. Gymnosporangium nidus-avis and G. sabinae are reported for the first time from Korea, and two new species, G. monticola sp. nov. and G. unicorne sp. nov., are recognized. Previous single reports of G. miyabei and G. shiraianum could not be confirmed. The LSU rDNA was sequenced from freshly collected specimens. Phylogenetic analyses show that species of Gymnosporangium form a monophyletic group with strong bootstrap support within the rust fungi. The two new species are unique based on both A and B molecular as well as morphological characteristics. Analyses of phenotypic characters mapped onto the phylogenetic tree show that teliospore length followed by telia shape and telia length are conserved; these are morphological characters useful in differentiating species of Gymnosporangium. Each of the nine species of Gymnosporangium in Korea is described and illustrated, and keys based on aecia and telia stages are provided. Lectotype specimens for several names described in Gymnosporangium are designated.
Yun
Hye Young
HY
Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University, 56-1 Shillim-dong, Kwanak-gu, Seoul 151-921, Republic of Korea.
Hong
Soon Gyu
SG
Rossman
Amy Y
AY
Lee
Seung Kyu
SK
Lee
Kyung Joon
KJ
Bae
Kyung Sook
KS
D001487:Basidiomycota / Q000145:classification* / Q000166:cytology / Q000235:genetics; D032462:Cycadopsida / Q000382:microbiology; D004271:DNA, Fungal / Q000032:analysis / Q000235:genetics; D004275:DNA, Ribosomal / Q000032:analysis / Q000235:genetics; D005843:Geography; D007723:Korea; D019684:Magnoliopsida / Q000382:microbiology; D010802:Phylogeny; D010935:Plant Diseases / Q000382:microbiology; D017422:Sequence Analysis, DNA; D013045:Species Specificity
D004271:DNA, Fungal; D004275:DNA, Ribosomal