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Three New Monotypic Genera of the Caloplacoid Lichens (Teloschistaceae, Lichen-Forming Ascomycetes)
( Sergii Y Kondratyuk ),( Laszlo Lokos ),( Jung A Kim ),( Anna S Kondratiuk ),( Min Hye Jeong ),( Seol Hwa Jang ),( Soon Ok Oh ),( Jae Seoun Hur ) 한국균학회 2015 Mycobiology Vol.43 No.3
Three monophyletic branches are strongly supported in a phylogenetic analysis of the Teloschistaceae based on combined data sets of internal transcribed spacer and large subunit nrDNA and 12S small subunit mtDNA sequences. These are described as new monotypic genera: Jasonhuria S. Y. Kondr., L. Lokos et S. -O. Oh, Loekoesia S. Y. Kondr., S. -O. Oh et J. -S. Hur and Olegblumia S. Y. Kondr., L. Lokos et J. -S. Hur. Three new combinations for the type species of these genera are proposed.
Cryptothecia austrocoreana (Arthoniales, Arthoniaceae), a New Species from South Korea
( Jung-jae Woo ),( Laszlo Lokos ),( Edit Farkas ),( Chan-ho Park ),( Jae-seoun Hur ) 한국균학회 2017 Mycobiology Vol.45 No.4
Cryptothecia austrocoreana is a new lichen species from South Korea. The species is characterized by the presence of a heteromerous thallus and faveolate ascigerous area (ascomata) immersed in a slightly raised thallus. The species has muriform ascospores, (4)6-8-spored 8-11 × 3-4 septate, (34)36-48(51) × (17)19-23(25) μm. Atranorin, chloroatranorin, and barbatic acid are present. In the phylogenetic tree, C. austrocoreana belongs to the arthonioid clade in Arthoniaceae.
Research Note : Leiorreuma exaltatum and Trapelia coarctata, New to Korean Lichen Flora
( Santosh Joshi ),( Udeni Jayalal ),( Laszlo Lokos ),( Jung Shin Park ),( Soon Ok Oh ),( Young Jin Koh ),( Jae Seoun Hur ) 한국균학회 2013 Mycobiology Vol.41 No.1
The present account briefly describes two crustose lichen species new to South Korea. Detailed taxonomic descriptions of Leiorreuma exaltatum and Trapelia coarctata, supported by distribution, ecology and illustrations, are provided. Both species were collected from warm-temperate, humid forests of Jeju Island.
Jeon, Hae-Sook,Lokos, Laszlo,Han, Keon-Seon,Ryu, Jung-Ae,Kim, Jung-A,Koh, Young-Jin,Hur, Jae-Seoun The Korean Society of Plant Pathology 2009 Plant Pathology Journal Vol.25 No.1
Lichen-forming fungi (LEF) were isolated from 67 Hungarian lichen species from ascospores or thallus fragments. LFF were successfully isolated from 26 species with isolation rate of 38.8%. Of the total number of isolation from ascospores (27 species) and thallus fragments (40 species), 48% and 32.5% of the species were successfully isolated, respectively. Comparison of rDNA sequences of ITS regions between the isolated LFF and the original thallus confirmed that all the isolates originated from the thallus fragments were LEF. The following 14 species of LEF were newly isolated in this study; Acarospora cervina, Bacidia rubella, Cladonia pyxidata, Lasallia pustulata, Lecania hyaline, Lecanora argentata, Parmelina tiliacea, Parmotrema chinense, Physconia distorta, Protoparmeliopsis muralis, Ramalina pollinaria, Sarcogyne regularis, Umbilicaria hirsuta, Xanthoparmelia conspersa and X. stenophylla. Antifungal activity of the Hungarian LFF was evaluated against plant pathogenic fungi of Colletotrichum acutatum, C. coccodes and C. gloeosporioides, causal agent of anthracnose on hot pepper. Among the 26 isolates, 11 LFF showed more than 50% of inhibition rates of mycelial growth of at least one target pathogen. Especially, LFF of Evernia prunastri, Lecania hyalina and Lecanora argentata were remarkably effective in inhibition of mycelial growth of all the tested pathogens with antibiotic mode of action. On the other hands, five isolates of Cladonia furcata, Hypogymnia physodes, Lasallia pustulata, Ramalina fastigiata and Ramalina pollinaria exhibited fungal lytic activity against all the three pathogens. Among the tested fungal pathogens, C. coccodes seemed to be most sensitive to the LFF. The Hungarian LFF firstly isolated in this study can be served as novel bioresources to develop new biofungicides alternative to current fungicides to control hot pepper anthracnose pathogenic fungi.
Two New Records of the Lichen Genus Placynthiella Elenkin in South Korea
( Yogesh Joshi ),( Thi Thuy Nguyen ),( Laszlo Lokos ),( Young Jin Koh ),( Jae Seoun Hur ) 한국균학회 2011 Mycobiology Vol.39 No.1
This study describes two new records of the lichen genus Placynthiella (P. hyporhoda and P. icmalea) from South Korea. A brief taxonomic description and comments are provided for the new records. An artificial key is also provided for known species of this genus in South Korea.
New Species and New Records of Buellia (Lichenized Ascomycetes) from Jeju Province, South Korea
Wang, Xin Yu,Liu, Dong,Lokos, Laszlo,Kondratyuk, Sergey Y.,Oh, Soon-Ok,Park, Jung Shin,Hur, Jae-Seoun The Korean Society of Mycology 2016 Mycobiology Vol.44 No.1
A new species and 2 new records of lichen genus Buellia were discovered from Chuja-do Island in Jeju Province during a recent floristic survey: B. chujana X. Y. Wang, S. Y. Kondr., L. $L\ddot{o}k\ddot{o}s$ & J.-S. Hur sp. nov., B. halonia (Ach.) Tuck., and B. mamillana (Tuck.) W. A. Weber. The new species is characterized by a brown, areolate thallus, the presence of perlatolic acid, and a saxicolous habitat. Together with previously recorded species, 10 Buellia species were confirmed from Jeju-do Island. Among these species, 3 growing in the exposed rocky area contained xanthone (yellowish lichen thallus, UV + orange), indicating that production of xanthone in this genus might be a defense strategy against the harm of UV light. Although the genus Buellia has been thoroughly studied in Korea before, novel species have been discovered continuously, and large species diversity has been found in this crustose genus, even from a small rocky island. This study indicates that the coastal area harbors a vast number of crustose lichen species, and there is great potential to discover unknown lichens in the coastal rocky area in Korea.