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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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The Korean Journal of Mycology
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Journal DOI :
The Korean Society of Mycology
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Volume & Issues
Volume 26, Issue 4 - Dec 1998
Volume 26, Issue 3 - Sep 1998
Volume 26, Issue 2 - Jun 1998
Volume 26, Issue 1 - Mar 1998
Selecting the target year
New Report on Sordarialean Fungi in Korea
Lee, Seon-Ju ; Ryu, Jin-Chang ; Go, Seung-Joo ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 293~301
Taxonomical studies of soil-borne fungi were performed. Soil samples were collected from greenhouses located in Jinju-City, Korea. Soil dilution plating method was adopted for the pure isolation. Seven ascomycetous fungi were isolated from the soil samples, and subsequently identified. Among them, five isolates, Chaetomium brasiliense, C. indicum, Corynascus sepedonium, Petriella sordida, and Thielavia fragilis have never been reported in Korea. Both teleomorphic and anamorphic states were observed in the two species, Corynascus sepedonium and Petriella sordida, and only teleomorphic state was observed in Thielavia fragilis, Chaetomium indicum, and Chaetomium brasiliense. Illustrated descriptions are presented for the isolates examined in the present study.
Notes on Species of the Laboulbeniales (Ascomycotina) Collected in Korea
Lee, Yong-Bo ; Lim, Chae-Kyu ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 302~305
Three species which belong to two genera of the Laboulbeniales were collected on Dytiscidae (Coleoptera) and Carabidae (Coleoptera) from south Korea. Occurrence of these species has not been recorded in Korea. They are Chitonomyces orientalis Thaxter on Laccophilus lewisius sharp, Chitonomyces zonatus Thaxter on Laccophilus lewisius sharp and Laboulbenia gebleri Terada on Haplochlaenius constiger Chaudoir. Major characters of the three species are described and illustrated.
Ectomycorrhizal Mushroom Occurrence around the Fairy Ring of Tricholoma matsutake at a Pine-Mushroom Forest
Park, Hyun ; Ka, Kang-Hyeon ; Ryoo, Cheon-In ; Kim, Kyo-Soo ; Kim, Hyun-Joong ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 306~313
The occurrences of ectomycorrhizal fungi were investigated in a pine-mushroom forest at Hongcheon, Korea. The fairy rings of Tricholoma matsutake were figured by the sporocarp places of T. matsutake for three years
, and the occurrences of other ectomycorrhizal fungi were surveyed with x and y dimensions for two years
. The diameters of fairy rings of T. matsutake ranged from 2m to 10m, which indicated that the age of the fairy rings as
years when we consider that the growth of the fairy ring used to show about 10 cm per year. Russula bella, R. sororia, R. delica and Cantharellus minor were the major species occurred on the site during the survey period, and each species occupied 16.0%, 12.8%, 12.4% and 7.0% of total mushroom occurrence, respectively. From the results, we could conclude that the surveyed stand was a productivity-declining forest from the view point of pine-mushroom production. In addition, Amanita pantherina, Suillus bovinus, Ramaria flaccida and Laccaria amethystea were considered to be the indicator species for declining of pine-mushroom productivity since some fruiting bodies of the species appeared around the fairy ring of T. matsutake.
Isolation and Characterization of a Wound or UV Induced cDNA Fragment from Pleurotus sajor-caju
Park, Soo-Chul ; Jung, Uk-Jin ; Jeong, Mi-Jeong ; Kim, Bum-Gi ; Yoo, Young-Bok ; Ryu, Jin-Chang ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 314~320
A 0.4 kb cDNA fragment was isolated from mRNA of UV or mechanical wound damaged Pleurotus sajor-caju by the differential display method. Expression of the gene corresponding to this cDNA fragment was highly induced by mechanical wound damage or UV treatment. This gene showed only basal level expression in mycelia, stipe, and cap under normal growth conditions. Sequencing analysis showed that this cDNA fragment contains partial open reading frame. Homology search using genbank database revealed that although this gene do not have homology with already reported wound induced genes, it has a significant sequence homology in defined region with the cdc2-related protein kinase gene which is known to be involved in negative regulation of meiotic maturation in Xenopus oocytes.
Mycelial Properties of Tremella fuciformis and Hypoxylon sp.
Chang, Hyun-You ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 321~326
Two strains, each of Tremella fuciformis and Hypoxylon sp. were isolated and their mycelial properties were investigated. T. fuciformis produced yeast-like conidia and dikaryotic mycelia from white to yellow color. The diameter of the hyphae was
, and septa with clamp connections were present. Secondary mycelia with clamp connections could produce fruitbodies on sawdust medium when the environmental conditions were suitable for fructification. The symbiotic fungus, Hypoxylon sp. produced white feather-like mycelia. But the color of old mycelia was changed to light yellow or light brown and pigmented the culture medium from light brown to brown or very dark green. Generally it did not produce conidia, but in a special case it produced conidia of which color was yellow green to grass green and of which shape was sub-elliptical with the size of approximately
Taxonomic Studies on Cercospora and Allied Genera in Korea (I)
Kim, Jeong-Dong ; Shin, Hyeon-Dong ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 327~341
The mycoflora of Korea, especially the cercosporoid taxa, have been poorly studied in the past. For this reason, a systematic revision of these taxa has been initiated, with the eventual aim of producing a monograph of the Korean cercosporoid taxa. The present study circumscribes ten species; viz., Cercospora althaeina, C. arachidicola, C. armoraciae, C. carotae, C. ipomoeae, Mycovellosiella ferruginea, Passalora miurae, Pseudocercospora araliae, P. cannabina and P. vitis. Distinguishing morphological characteristics are described and illustrated for each species.
Taxonomic Studies on Cercospora and Allied Genera in Korea (II)
Kim, Jeong-Dong ; Shin, Hyeon-Dong ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 342~353
This paper is a contribution towards taxonomic studies on Cercospora and allied genera, and contains ten species of Korean cercosporoid fungi; viz. Cercospora beticola, C. lactucae-sativae, C. lycii, Distocercospora pachyderma, Mycovellosiella passaloroides, Passalora dubia, P. sojina, Phaeoisariopsis griseola, Pseudocercospora atromarginalis, and P. rhoina. Morphological characteristics of taxonomic value are described and drawn for these species to contribute towards a mycological monograph of Korean cercosporoid fungi.
Isolation and Characterization of a Chitin Synthase Gene Fragments from Pleurotus sajor-caju
Jeong, Mi-Jeong ; Park, Soo-Chul ; Kim, Bum-Gi ; Yoo, Young-Bok ; Ryu, Jin-Chang ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 354~360
We isolated three amplified DNA fragments from P. sajor-caju by Polmerase chain reaction (PCR) using the chithin synthase specific primers. Since the sequence analysis of the these fragments showed significant homology to the other known chitin synthase gene, we regarded these cloned fragments as PsCHS1, PsCHS2, and PsCHS3 according to their size. The PsCHS3, which showed the highest sequence homology (83% identity in amino acid level with ChsI of Rhizopus oligosporus in conserved region), was selected to see expression pattern of the corresponding gene. The result of RT-PCR using internal primer of the PsCHS3 fragment revealed that PsCHS3 gene was only expressed in cap and mycelium but not in stipe. In order to see whether the PsCHS3 gene was to be induced by wounding, the comparison of the mRNA level of this gene between wounded and unwounded mature cap showed at least two times induction of this gene by wounding treatment.
Effect of Complex Nitrogen Source on Mycelial Growth of Tricholoma matsutake DGUM 26001
Min, Eung-Gi ; Chung, Kwang-Kyo ; Han, Yeong-Hwan ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 361~364
Among the organic sources of nitrogen tested, yeast extract and soytone were excellent for the mycelial growth of Tricholoma matsutake DGUM 26001. The mycelial growth was enhanced, when yeast extract at the concentration up to 1.0% was added to the starchpyridoxine medium. After 30-day cultivation of the mycelia at
in the medium supplemented with yeast extract, 518 mg/50 ml of dry mycelia could be harvested.
Randomly Amplified Polymorphic DNA Analyses of Pestalotiopsis theae Isolated from Sweet Persimon
Lee, Youn-Su ; Woo, Su-Jin ; Choi, Hei-Sun ; Kim, Kyoung-Su ; Kang, Won-Hee ; Kim, Myoung-Jo ; Shim, Jae-Ouk ; Chang, Tae-Hyun ; Lim, Tae-Heon ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 365~372
In this study, we evaluated the genetic relationships of fourty seven Pestalotiopsis theae isolates collected from diseased sweet persimon in various places in southern part of Korea using RAPD (Randomly Amplified Polymorphic DNAs) method. As a result of the amplification, eight primers showed total of 86 bands ranging from 0.3 Kb to 3.2 Kb. Among those 86 bands, 84 polymorphic bands were used for bionominal matrix code (0, 1), and UPGMA dendrogram analysis. Similarities among the compared isolates ranged from below 60% to more than 95%. Most of the compared isolates showed
similarities. The number of isolate pairs which showed more than 80% similarity were 248. The number of isolate pairs which showed
similarity were 789, and the number of isolate pairs which showed below 50% similarity were 21. Isolate SP-21 (No.9) showed below 50% similarity with all the isolates compared. At 50% similarity level, all the isolates compared, except isolate SP-21 (No.9), were included in one big group. At 65% similarity level, all the isolates compared, except isolate SP-21 (No.9), were divided into three different groups. At 75% similarity level, all the isolates compared, except isolates SP-47 (No. 23) and SP-21 (No.9), were divided into six different groups.
Analyses of Genetic Relationships of Rhizoctonia solani Isolates from Various Crop Species and Rapid Identification of Anastomosis Groups with RAPD Method
Lee, Youn-Su ; Choi, Hei-Sun ; Kim, Kyoung-Su ; Woo, Su-Jin ; Kang, Won-Hee ; Kim, Myoung-Jo ; Shim, Jae-Ouk ; Lee, Min-Woong ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 373~379
Rhizoctonia solani [Thanatephorus cucumeris (frank) Donk], one of the major soil-borne plant pathogens with world-wide distribution, can cause great damages on various crops. In Korea, sheath blight on rice caused by this pathogen is the major concern, and active studies on this pathogen have been performed. However, most of these studies were concerned with pathogenicity of the isolates instead of molecular analyses of different AGs of R. solani. Therefore, in this study, thirty isolates of Rhizoctonia solani collected from various sources were used for the analyses of genetic relationships among themselves and for the rapid anastomosis grouping with RAPD method. As a result, thirty isolates of known and unknown AGs were grouped into five subgroups and each group included AG-1, AG-2, AG-3, AG-4, and AG-5. RS-1 isolate was found to be closely related to AG-5. Isolates RS-4, RS-14, RS-17, and RS-16 were found to be closely related to AG-2-2(III B). Isolate RS-13 was closely related to AG-4, isolates RS-8 and RS-10 were closely related to AG-1(I B), and isolates RS-7 and RS-21 were closely related to AG-2-2(IV). Isolate RS-19 was closely related to AG-1(I C), and isolates RS-3, RS-5, RS-18, RS-6, and RS-15 were found to be closely related to AG-1.
Cultural Characteristics for Inducing Fruting-body of Isaria japonica
Ban, Ki-Won ; Park, Dong-Kyoo ; Shim, Jae-Ouk ; Lee, Youn-Su ; Park, Chul-Ho ; Lee, Ji-Yul ; Lee, Tae-Soo ; Lee, Sang-Sun ; Lee, Min-Woong ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 380~386
To obtain basic data for mass production of Isaria japonica, cultural characteristics of japonica were investigated by using liquid, solid media and silkworms pupa. Mycelia grew favorably at the temperature of
on MYG medium with pH 7.0. The fruiting-body of I. japonica was induced below
in MYG liquid medium (Malt yeast glucose) under fluorescent light. In MYG basal medium mixed with pupal powder of silkworms, the fresh weight of fruiting-bodies was increased with increasing concentration of pupal powder. The highest yield of fruiting bodies was obtained in carbon-rich medium supplemented with pupal powder of silkworm. Also, fruiting-bodies of I. japonica were produced massively on the silkworm pupa placed on the stainless tray in the shortest time. The structure and shape of fruiting-bodies were coral-like, many-branched types with numerous conidiospores.
Relationship between Virulence and Cultural Characteristics in Calonectria ilicicola
Kim, K.D. ; Russin, J.S. ; Snow, J.P. ; Valverde, R.A. ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 387~395
Mycelial growth, production of microsclerotia and perithecia, and presence of double-stranded RNA were examined in Calonectria ilicicola isolates from several hosts to detect morphological and/or genetic markers for comparison with levels of virulence. Variability in disease severity, production of microsclerotia and perithecia, and mycelial growth was observed across all isolates. None of 35 isolates of C. ilicicola examined contained detectable levels of double-stranded RNA. Disease severity on soybean cultivars correlated positively with production of both microsclerotia and perithecia. Mycelial growth correlated negatively with production of perithecia. Virulence on the cultivars and production of microsclerotia and perithecia were greater in isolates of C. ilicicola from soybean than those from peanut. These results suggest that the ability of isolates to produce microsclerotia and perithecia is a component of inoculum potential. Perithecia production may serve as a useful marker for characterizing virulence or host specialization in this homothallic fungus.
The Sclerotia Formation of Polyporus umbellatus on the Logs
Son, Seo-Gyu ; Park, Dong-Gyu ; Ban, Ki-Won ; Ka, Kang-Hyun ; Shim, Jae-Ouk ; Lee, Youn-Su ; Lee, Sang-Sun ; Lee, Tae-Soo ; Kim, Kwang-Poh ; Lee, Min-Woong ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 396~398
This study was carried out to obtain the basic data for artificial production of Polyporus umbellatus. Among logs consisted of 16 tree species, the log of Stylax japonica inoculated with Polyporus umbellatus not only produced compact sclerotia of
in their diameters but resulted in the good mycelial density. Also, the sclerotia were observed on 6 different kinds of logs inoculated with Polyporus umbellatus.
First Record of the Entomopathogenic Fungus Zoophthora radicans on the Green Peach Aphid Myzus persicae in Korea
Yoon, Cheol-Sik ; Yun, Tae-Yu ; Lee, Goen-Hyoung ; Yoo, Jai-Ki ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 399~402
An entomopathogenic fungus, Zoophthora radicans, was found causing epizootics in populations of the green peach aphid, Myzus persicae, on March 27, 1998 at Seongju Gun, Kyungbuk Province in Korea. Anamorhic characteristics of the fungus were described using light and scanning electron microscopy. Distinguishing characteristics of Z. radicans is formation of capilliconidia on a single slender secondary conidiophore.
Entomophthora planchoniana Cornu (Zygomycetes: Entomophthoraceae), the First Observed Pathogen of the Green Peach Aphid Myzus persicae in Korea
Yoon, Cheol-Sik ; Sung, Gi-Ho ; Lee, Gun-Hyung ; Park, Hyun-Soo ; Lee, Jeang-Oon ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 403~406
An entomophthoraceous fungus, Entomophthora planchoniana, was found in populations of the green peach aphid, Myzus persicae, at Kunsan city on June 2, 1998. Occurrence of this species has never been recorded in Korea. Microscopic observations of this fungus are described, and illustrated. Unique characters are that it forms unitunicate muscae-like conidia with
nuclei, and is the only Entomophthora species which can attack aphids.
The Aphid-attacking Fungus Pandora neoaphidis; the First Observation and its Host Range in Korea
Yoon, Cheol-Sik ; Sung, Gi-Ho ; Choi, Byung-Ryul ; Yoo, Jai-Ki ; Lee, Jeang-Oon ;
The Korean Journal of Mycology, volume 26, issue 3, 1998, Pages 407~410
The aphid-attacking fungus Pandora neoaphidis was collected during May and June, 1998 at various localities: two localities at Kyunggi, three at Kangwon, one at Kyungbuk and one at Chungnam Provinces. Occurrence of this fungus has never been recorded in Korea. The potential host aphids are Acyrthosiphon kondoi, Myzus persicae, Lipaphis erysimi, Sitobion avenae, Aphis rumicis, Dactynotus species and unknown species. Microscopic characters of the fungus are described and illustrated. Pandora neoaphidis studied in this study has an extremely broad range in conidial size and shape even within a single specimen. Such variable size and shape are typical characters of the fungus. During microscopic examination of specimens, the resting-spore phase was not observed.