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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
The Korean Journal of Mycology
Journal Basic Information
Journal DOI :
The Korean Society of Mycology
Editor in Chief :
Volume & Issues
Volume 15, Issue 4 - Dec 1987
Volume 15, Issue 3 - Sep 1987
Volume 15, Issue 2 - Jun 1987
Volume 15, Issue 1 - Mar 1987
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The Mycoflora of Aphyllophorales in Cheju Island
Yang, Suk-Chul ; Oh, Duck-Chul ; Lee, Ji-Yul ;
The Korean Journal of Mycology, volume 15, issue 3, 1987, Pages 131~134
About 350 samples of mushrooms were collected in Mt. Halla of Cheju Island from March to December of 1986. 45 species of Aphyllophorales were identified and included in 7 families and 26 genera. Among them, Inonotus nodulosus and Daedaleopsis purpurea were recognized as unrecorded species in Korea. Characteristics of these two species were described and Korean names were designated.
Interspecific protoplast Fusion and Sexuality in Pleurotus
Yoo, Young-Bok ; You, Chang-Hyun ; Park, Yong-Hwan ; Lee, Yeon-Hee ; Chang, Kwon-Yawl ; Peberdy, John F. ;
The Korean Journal of Mycology, volume 15, issue 3, 1987, Pages 135~141
Interspecific heterokaryons were obtained by polyethylene glycol induced fusion of protoplasts from auxotrophic mutants of P. ostreatus+P. cornucopiae, P. ostreatus+P. florida, P. ostreatus+P. sajor-caju, P. florida+P. cornucopiae, P. florida+P. sajor-caju and P. sajor-caju+P. cornucopiae protoplasts. The Fusion products of protoplasts were induced by MCM+benomyl, but segregation of sectors were not identified. Interspecific fusion products of protoplasts between incompatible strains did not form true clamp connections and did not produce fruit bodies. For induction of fertility, interspecific heterokaryons crossed with their parents by hyphal anastomosis.
Effect of Environmental Factors on Appressorium Formation of Colletotrichum truncatum
Do, Eun-Su ; Paik, Su-Bong ;
The Korean Journal of Mycology, volume 15, issue 3, 1987, Pages 142~148
The results investigated of the effect of light, pH, and nutrients in vitro and the levels of fertilizer(P,K and Ca) in vivo in order to find out the effect of environmental factors in forming an appressorium of Colletotrichum truncatum were as follows; The ratio of appressorium formation promoted more in a light treatment than in a dark treatment according to investigation after three and six hours passed away. But after the period, the ratio of appressorium formation promoted highly in both treatments. Reasonable pH of appressorium formation was pH 6-pH 8. The ratio of appressorium formation was the most favorable at none nutrient level in every treatment of C-source and N-source, and suppressed in a high concentration of C-source and N-source. But according as the time passed away, the ratio of appressorium formation promoted in C-source and N-source. When their quantities were increased in P and K treatments, the ratio of appressorium formation was somewhat suppressed but it was highly suppressed in the gradual order of none fertilizer level < standard fertilizer level < doubled fertilizer level in Ca treatment according to investigation after the first three hours passed away. But after the period, the ratio of appressorium formation promoted highly regardless of the level of fertilizer.
Studies on the Spore Formation of Aspergillus niger in Potassium Acetate Medium
Lee, Ho-Young ; Kim, Jong-Hyup ;
The Korean Journal of Mycology, volume 15, issue 3, 1987, Pages 149~157
This study was undertaken to investigate the differentiation, from spore germination to hyphae growth and phialide formation, of Aspergillus niger through the method of synchronous and submerged culture. Through continuous experiments by shake culture with potassium acetate medium, we observed the formation of spores at appropriate concentration and pH. Potassium acetate medium was set pH 5.5, 6.0, 6.5 and 7.0 on each scale, and control, 20 mM, and 40 mM, 80 mM and 160 mM concentrations on the other scale. Aspergillus niger was cultured in the defined media at
, and mycelial dry weight, changes of pH and the onset of sporulation were checked. The mycelial dry weight, increased in potassium acetate medium, and pH increased during mycelial growth and gradually decreased after the spore formation. When pH increased excessively in Potassium acetate medium with pH 7.0, the mycelia could not adapt and mycelial dry weight decreased gradually. At pH 5.5, the onset of sporulation was done within one day at 20 mM it took, at 80 mM three days and at 160 mM concentration. in two days, at 40 mM one to four days were taken, 80 mM concentration respectively. At pH 6.5, the onset of sporulation was done in three days and four days at 80 mM concentrations respectively. Spore formation was not shown at pH 7.0. In controlled medium with all levels of pH, spore formation was not shown.
Studies on the Utilization of Cassava Starch by a Strain of Rhizopus and Aspergillus niger
Kwon, Kyung-Ran ; Kim, Jong-Hyup ;
The Korean Journal of Mycology, volume 15, issue 3, 1987, Pages 158~168
Several species of the fungi were isolated from cassava(Manihot esculenta Gruntz) starch which had formed into pellet, those had been stored for a while in southern part of Thailand. The species of Rhizopus, Aspergillus niger, and Aspergillus fumigatus were identified. The experimental results are as follows; Dry weight increases were checked during the static liquid culture with modified Czapek Dox medium to which cassava starch was partly replaced to sugar, Aspergillus niger and Aspergillus fumigatus had grown more than Rizopus species when 6% cassava starch was replaced to sugar and had been cultured for 72 hours. Amounts of mycelial protein of Aspergillus niger were checked, the highest amount was shown in 6% cassava starch involved medium. When nitrogen sources were varied such as ammonium sulfate or urea against sodium nitrate, there was no significant difference in mycelial production. Alpha amylase activity of each fungus isolated here was checked, those of Aspergillus niger have shown the highest peak at 72 hours.
Studies on the screening and properties of Raw Starch Saccharifying Microorganism(I) - Selection, optimum condition of enzyme production of Aspergillus sp. SN-871 -
Suh, Myung-Ja ; Nho, Kyoung-Hee ;
The Korean Journal of Mycology, volume 15, issue 3, 1987, Pages 169~174
The studies on the screening and properties of Raw Starch Saccharifying Microorganism were as follows;Apotent mold strain was selected and screened to digest raw starch, which was classified as a strain of Aspergillus sp. SN-871. The crude enzyme production was maximized when grown on wheat bran media for 5 days at
and pH 4.0. The stable range of pH was 2 to 5.
Studies on the screening and properties of Raw Starch Saccharifying Microorganism(II) - Purification and characterization of raw starch-digesting enzyme from Aspergillus sp. SN-871 -
Suh, Myung-Ja ; Nho, Kyoung-Hee ;
The Korean Journal of Mycology, volume 15, issue 3, 1987, Pages 175~182
A raw starch saccharifying enzyme from Aspergillus sp. SN-871 was purified by ammonium sulfate precipitation, DEAE-cellulose column chromatography, CM-Sephadex C-50 column chromatography and Sephadex G-75 gel filtration. The specific activity of purified enzyme was 18 fold and the yeild was 13.40%. The molecular weight of the purified enzyme was estimated as approximately 40,000 dalton by the method of Andrews gel filtration. The optimum pH and temperature for this enzyme were found to be 4 and
, respectively and the stable range of pH was 2 to 5. The enzyme was themostable at below
and inactivated at
. It showed a tendency to increase the enzyme activity under the presence of 0.01 M
, but under 0.01 M
and citric acid etc. inhibited it completely. The substrate specifity of enzyme showed a tendency to increase the enzyme activity under addition of dextrin and glycogen, but under saccharose inhibited it. COD removal rate of Aspergillus sp. SN-871 was approximately 67 to 68%.
Colletotrichum coccodes Found in Seeds of Capsicum annuum and Pathogenicity to Solanaceae Plants
Yu, Seung-Hun ; Park, Jong-Seong ; Oh, In-Seok ; Wu, In-Sik ; Mathur, S.B. ;
The Korean Journal of Mycology, volume 15, issue 3, 1987, Pages 183~186
Colletotrichum coccodes generally regarded as soil borne, was for the first time observed in seed samples of pepper(Capsicum annuum). Detailed descriptions were given on the habit character of the fungus and the morphology of conidia. The fungus caused anthracnose on fruits of pepper, tomato and egg plant under laboratory conditions.
Fungal flora of paddy field in Korea IV. Filamentous fungi isolated by heat treatment
Min, Kyung-Hee ; Ito, Tadayoshi ; Yokoyama, Tatsuo ;
The Korean Journal of Mycology, volume 15, issue 3, 1987, Pages 187~195
Two kinds of heat treatment method for the selective isolation of soil fungi to eliminate the commonest fungi and also to examine the vertical and seasonal distributions of the fungal population were applied to soil samples from two plots around Seoul area. The incubation method at
and heat treatment at
were used in this experiment. In the incubation method, the almost all the fungi isolated from two plots were mesophile, while the thermotolerant fungi was Aspergillus fumigatus and thermophilic fungi were Sporotrichum thermophile and Malbranchea pulchella var. sulfrea. The most dominant species isolated by this method was A. fumigatus. Nine genera and fourteen species were isolated from the two plots, and S. thermophile, Talaromyces ucrainicus,Malbranchea pulchella var. sulfrea were new to Korea. From the selection method by heat treatment at
, ten genera and twenty species were isolated. Among these, the most fungi were also mesophile and thermotolerant fungus was A. fumigatus. The most dominant species isolated by this method was T. stipitatus, Talaromyces helicus var. major, Emericella nidulans var. nidulans, Chaetomium subspirale and Neosartorya fisheri var. fisheri were new to Korea. From the two isolation methods, it was found that the total number of soil fungi and frequency of species appeared including dominant ones were the highest at the soils of upper layer while the lowest at the soils of lower layer in its vertical distribution.