Isaria takamizusanensis is the anamorph of Cordyceps ryogamimontana, warranting a new combination, Purpureocillium takamizusanense comb. nov.
The entomogenous anamorphic fungus Isaria takamizusanensis has not been resolved clearly in its teleomorphic state. We succeeded in inducing ascostroma formation by incubating conidiomata of I. takamizusanensis on cicada adults in a moist chamber. We observed the ascostroma and conducted a phylogenetic analysis based on ITS rDNA and EF-1α genes. The morphology of the ascostroma was identical to that of Cordyceps ryogamimontana. In the phylogenetic tree inferred from EF-1α, the isolate from the partspores grouped with nine strains derived from conidia of I. takamizusanensis, which was distinct from a clade including Purpureocillium lilacinum. Moreover, a conidial structure identical to that of I. takamizusanensis was rediscovered on the holotype specimen of C. ryogamimontana. As a result, we propose a new name, Purpureocillium takamizusanense, which is a combination of the teleomorph-anamorph connection of C. ryogamimontana-I. takamizusanensis, in accordance with the 'one fungus, one name' concept of the International Code of Nomenclature for Algae, Fungi, and Plants (ICN).
NITE Biological Resource Center (NBRC), National Institute of Technology and Evaluation (NITE), 2-5-8 Kazusakamatari, Kisarazu, Chiba, 292-0818, Japan.
Sayaka
S
Ban
Japanese Society of Cordyceps Research, Kakinoki, Kakinoki-mura, Yoshika-cho, Kanoashi-gun, Shimane, 699-5301, Japan.
Yuta
Y
Azuma
Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki, 305-8687, Japan.
Hiroki
H
Sato
NITE Biological Resource Center (NBRC), National Institute of Technology and Evaluation (NITE), 2-5-8 Kazusakamatari, Kisarazu, Chiba, 292-0818, Japan.
Ken-Ichiro
KI
Suzuki
Fungus/Mushroom Resource and Research Center, Faculty of Agriculture, Tottori University, 4-101, Koyama Minami, Tottori, 680-8553, Japan.
Akira
A
Nakagiri
D032661:Cordyceps / Q000145:classification* / Q000166:cytology; D004271:DNA, Fungal / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D008969:Molecular Sequence Data; D020648:Peptide Elongation Factor 1 / Q000235:genetics; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D013172:Spores, Fungal / Q000166:cytology
D004271:DNA, Fungal; D021903:DNA, Ribosomal Spacer; D020648:Peptide Elongation Factor 1