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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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The Korean Journal of Mycology
Journal Basic Information
Journal DOI :
The Korean Society of Mycology
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Volume & Issues
Volume 43, Issue 4 - Dec 2015
Volume 43, Issue 3 - Sep 2015
Volume 43, Issue 2 - Jun 2015
Volume 43, Issue 1 - Mar 2015
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Yeasts Diversity of Wild Flowers in Mountains of Korea and Their Physiological Functionalities
Hyun, Se-Hee ; Han, Sang-Min ; Kim, Ha-Kun ; Lee, Jong-Soo ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 137~141
DOI : 10.4489/KJM.2015.43.3.137
This study focused on isolation of wild yeasts from natural flowers and elucidation of yeast diversity. Wild yeasts were isolated from various flowers collected from mountains on the islands including Jejudo, Ulleungdo, Yokjido, and Seonyudo as well as inlands including Gyejoksan, Oseosan, Beakamsan, and Deogyusan in Korea. Isolated yeasts were identified by comparison of nucleotide sequences for polymerrase chain reaction-amplified D1/D2 region of 26S rDNA or internal transcribed spacer 1 and 2 including 5.8S rDNA using BLAST. 289 strains belonging to 134 yeast species were isolated. Cryptococcus genus strains were the most frequently isolated species among the identified yeasts. Metschnikowia reukaufii was also frequently isolated. Twenty three species including Cryptococcus aureus were overlapped between those of mountains on islands and inland. Physiological functionalities such as antioxidant activity, xanthine oxidase inhibitory activity, and tyrosinase inhibitory activity for the 289 identified yeast strains were investigated using their supernatant and cell-free extracts. The supernatants of Candida sp. 78-J-2 and Metschnikowia reukaufii SY44-6 showed antioxidant activity of 22.5%, and anti-gout xanthine oxidase inhibitory activity of 49.6%, respectively.
New Records of Fungi Growing on Jejudo
Ko, Pyung Yeol ; Lee, Hyang Burm ; Lee, Seung Hak ; Jeun, Yong Chull ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 142~148
DOI : 10.4489/KJM.2015.43.3.142
In this study, among the wild mushrooms collected on Jeju Island for the recently 9 years, 5 species are newly reported to Korea. They are identified as Ramariopsis subtilis, Coltriciella pusilla, Lactifluus ochrogalactus, Microstoma insititium and Morchella semilibera based on macromorphological and microscopic observation. In addition, Lactifluus ochrogalactus and Microstoma insititia were re-identified by analysis of internal transcribed spacer of ribosomal DNA.
Taxonomic Characterization and Safety of Nuruk Molds Used Industrially in Korea
Hong, Seung-Beom ; Hong, Sung-Yong ; Jo, Kyu-Hong ; Kim, Young-Sik ; Do, Jong-Ho ; Do, Ji-Young ; Noh, Seok-Beom ; Yoon, Han-Hong ; Chung, Soo-Hyun ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 149~157
DOI : 10.4489/KJM.2015.43.3.149
We examined taxonomic characteristics and safety of eight Nuruk molds that are widely used for making soybean paste, soy sauce and alcoholic beverages in Korea. HK1 from Hakyeong Fermentation Co., SW101 from Suwon Fermentation Co., CF1001, CF1002, CF1003 from Chungmoo Fermaentation Co. and KACC 93210 are yellow-Nuruk molds, and SW201 from Suwon Fermentation Co. and CF1005 from Chungmoo Fermentation Co. are white-Nuruk molds. Six strains of yellow-Nuruk molds were identified as Aspergillus oryzae. HK1, SW101, CF1001 and CF1003 of yellow-Nuruk molds have middle length of stipes (
), and CF1003 (for sake) produced less conidia and more hyphae than HK1, SW101 and CF1001 (for soybean paste). CF 1002 used for soy sauce has shorter stipes (
) and is clustered into IBLB-group based on omtA gene analysis although the other yellow-Nuruk molds are clustered into ICAo group. KACC 93210 isolated from traditional Korean Meju has very short stipes (average
), and showed velvety colonies although the others showed floccose colonies. The strain has different DNA sequences of omtA gene from other strains in NCBI GenBank as well as strains used in Korea, suggesting that it is unique from other strains published. SW201 and CF1005 of white-Nuruk molds were identified as Aspergillus luchuensis or A. luchuensis mut. Kawachii that is known as safe, non-toxigenic fungus. The six strains of yellow-Nuruk molds did not produce mycotoxins including aflatoxin, cyclopiazonic acid, and sterigmatocystin. Therefore, eight strains of Nuruk molds used for making soy sauce, soybean paste and alcoholic beverages in Korea were proved to be safe in this study.
Diversity of Mycotoxigenic Fusarium armeniacum Isolated from Rice Grains at Harvest Time in Korea
Hong, Sung Kee ; Lee, Soohyung ; Lee, Theresa ; Ham, Hyeonheui ; Mun, Hye Yeon ; Choi, Hyo Won ; Son, Seung-Wan ; Ryu, Jae-Gee ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 158~164
DOI : 10.4489/KJM.2015.43.3.158
A total of 509 rice panicle samples were collected at harvest time from fields in 8 provinces from 2010 to 2014. One hundred five grains per sample were plated on potato dextrose agar and 6,658 Fusarium isolates were obtained; among them, 67 were identified as Fusarium armeniacum by sequencing the translation elongation factor
) and confirmed by their morphological and cultural characteristics. Considerable variation in conidial size, colony color and
sequences was observed among the fungal isolates. The ability of 24 F. armeniacum isolates to produce T-2 and HT-2 toxin in potato sucrose agar was determined using liquid chromatography-mass spectrometry. Twenty one isolates produced T-2 and HT-2 toxin, resulting in varying toxin levels among the isolates. The results show that Korean isolates of F. armeniacum have diversity with respect to morphological, cultural, genetic, and toxigenic properties.
Characteristics of Mycelial Growth and Enzyme Activities of Mattirolomyces terfezioides Collected from Robinia pseudoacacia Forest in Korea
Jeon, Sung-Min ; Wang, Eun-Jin ; Ka, Kang-Hyeon ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 165~173
DOI : 10.4489/KJM.2015.43.3.165
Mattirolomyces terfezioides is a type of sweet truffles that predominantly form ectomycorrhizae with Robinia pseudoacacia. It is also worthy of artificial cultivation. This is the first report on characteristics of mycelial growth and enzyme activities of M. terfezioides collected from R. pseudoacacia forest in Korea. M. terfezioides showed the highest mycelial growth when cultured on potato dextrose agar (PDA) at
or in modified Melin-Norkran`s liquid medium (pH 8.0). The biomass of M. terfezioides was higher in liquid medium containing nitrate-nitrogen than ammonium-nitrogen by 1.8 fold. The mycelia of M. terfezioides showed both carboxymethylcellulase and laccase activities on solid media for enzyme screening.
Antihyperglycemic α-Glucosidase Inhibitory Activity of Ethanol Extract from Neolentinus lepideus
Shin, Ja-Won ; Bae, Sang-Min ; Han, Sang-Min ; Lee, Yun-Hae ; Kim, Jeong-Han ; Ji, Jeong-Hyun ; Lee, Jong-Soo ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 174~179
DOI : 10.4489/KJM.2015.43.3.174
For development a new anti-diabetic compound from edible mushroom, antihyperglycemic
-glucosidase inhibitory activities of Pleurotus ostreatus, Pleurotus cornucopiae, Pleurotus salmoneostramineus, Pleurotus eryngii and Neolentinus lepideus were investigated on its water and ethanol extracts.
-Glucosidase inhibitory activity of Neolentinus lepideus fruiting body showed the highest at 86.3% in the 95% ethanol extracts and water extract from Pleurotus cornucopiae was also higher at 48.5% among water extracts. Therefore, Neolentinus lepideus which showed very high
-glucosidase inhibitory activity was selected as a new anti-diabetic agent-containing mushroom and the
-glucosidase inhibitor was maximally extracted when treated with 95% ethanol at
for 48 hr. The ethanol extracts from Neolentinus lepideus fruiting body showed dosage-dependent hypoglycemic action after administration to 120 min in the SD-rat and streptozotocin-induced diabetic SD-rat.
Selection of Bacillus amyloliquefaciens M27 for Biocontrol on Lettuce Sclerotinia Rot
Lee, Sang Yeob ; Weon, Hang Yeon ; Kim, Wan Gyu ; Kim, Jeong Jun ; Han, Ji Hee ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 180~184
DOI : 10.4489/KJM.2015.43.3.180
For selection of effective antagonists for control Sclerotinia rot of lettuce, 29 bacteria were isolated from soil in Korea. The bacterial isolates M27 and RM43 identified as Bacillus sp, were selected as prospective agents for inhibiting mycelial growth of Sclerotinia sclerotiorum and Sclerotinia minor. Among the selected isolates, Bacillus amyloliquefaciens M27 effectively suppressed incidence of Sclerotinia rot by Sclerotinia sclerotiorum and Sclerotinia minor in the lettuce nursery.
Effect of Spent Mushroom Substrates of Hericium erinaceum on Plant Pathogens of Tomato
Lee, Sang Yeob ; Kang, Hee-Wan ; Kim, Jeong Jun ; Han, Ji Hee ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 185~190
DOI : 10.4489/KJM.2015.43.3.185
Water extract from spent mushroom substrate of Hericium erinaceus inhibited the mycelial growth of seven strain of tomato pathogenic fungi including Phytophthora capsici and the growth of Ralstonia solanacearum. Control efficacy of tomato bacterial wilt by treatment of 33.3% and 50% water extract from spent mushroom substrate of Hericium erinaceus was showed 58.3%, 83.3%, respectively.
A New Record of Neosartorya aureola Isolated from Field Soil in Korea
Adhikari, Mahesh ; Kim, Sangwoo ; Yadav, Dil Raj ; Kim, Changmu ; Lee, Hyang Burm ; Lee, Youn Su ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 191~195
DOI : 10.4489/KJM.2015.43.3.191
A new species of Neosartorya was recovered during investigation of the fungal community in soil samples collected from different locations in Korea; Neosartorya aureola KNU14-7 was isolated for the first time from field soil in Korea and identified based on the internal transcribed spacer region of rDNA and morphological characteristics. The species has not been officially reported from Korea and we report it here with description and figures.
Characterization of Yeast for Soju (Distilled Spirits) from Korean Traditional Nuruk
Choi, Han-Seok ; Kang, Ji-Eun ; Jeong, Seok-Tae ; Kim, Chan-Woo ; Takamine, Kazunori ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 196~199
DOI : 10.4489/KJM.2015.43.3.196
The occurrence and characterization of yeast isolated from Korean traditional nuruk were investigated. Sequences of the D1/D2 domain of the 26S rDNA were identical for a strain examined and had a similarity value of 100% compared to sequences of the type strain of Saccharomyces cerevisiae (NRRL Y-12632). The isolate able to assimilate with trehalose, raffinose, and methyl-glucoside assimilate was also capable of glucose, galactose, maltose, and sucrose fermentation. It did not proliferate at
or above, but was able to grow in concentration of 50% glucose and 10% NaCl. By combining nucleotide sequence, morphological observation, and physiological characteristics, the isolate was identified as S. cerevisiae.
Plant Growth Promotion and Gibberellin A3 Production by Aspergillus flavus Y2H001
You, Young-Hyun ; Park, Jong Myong ; Kang, Sang-Mo ; Park, Jong-Han ; Lee, In-Jung ; Kim, Jong-Guk ;
The Korean Journal of Mycology, volume 43, issue 3, 2015, Pages 200~205
DOI : 10.4489/KJM.2015.43.3.200
Perilla frutescens var. japonica Hara was collected from farmland in Seongju-gun. Fifteen endophytic fungal strains with different colony morphologies were isolated from roots of P. frutescens. Waito-c rice seedlings were treated with the concentrated culture filtrates (CF) of endophytic fungi for observation of their plant growth-promoting activities. In the results, the CF of Y2H001 fungal strain promoted the growth of the waito-c rice seedlings. The phylogenetic tree of Y2H001 strain was analyzed by the combined sequences of the partial internal transcribed spacer region (ITS) and partial betatubulin gene. Molecular and morphological studies identified the Y2H001 strain as belonging to Aspergillus flavus. In gas chromatography mass spectrometry (GC/MS) analysis of the CF of Y2H001 strain, gibberellic acid (GA) was detected and quantified. Therefore, we describe Y2H001 strain as a new
-producing A. flavus based on morphological, molecular characteristics and analysis of secondary metabolite.