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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 13, Issue 4 - Dec 1985
Volume 13, Issue 3 - Sep 1985
Volume 13, Issue 2 - Jun 1985
Volume 13, Issue 1 - Mar 1985
Selecting the target year
Spore Germination of Some Fungi under Different Soil Conditions in Relation to Fungistasis
Lee, Min-Woong ; Shin, Hyun-Sung ; Choi, Hae-Jung ;
The Korean Journal of Mycology, volume 13, issue 4, 1985, Pages 195~201
Numbers of total bacteria and fungal propagules were highly populated in the soil of diseased plot in Gumsan, whereas numbers of actinomycetes were high in the soil of healthy plot in Goesan. In microbial fluctuation of different soil conditions four weeks after amended with various plant materials, bacteria were decreased in the soil amended with various plant materials as compared with non-amended soil except for Goesan. On the contrary, numbers of fungal propagules were increased amended with onion and potato stalk in two soils at different conditions, and also the propagules were enhanced in the soil amended with various plant materials in general. Higher numbers of bacteria and fungal propagules were observed in the diseased replanted plot in general, but germination rate of fungal spores relatively reversed against the microbial population. Alternaria panax was not affected much in their germination by natural soil condition, while Fusarium spp. were affected in their germination by natural soil. Natural soil showed a fungistatic effect against four fungal spores.
Studies on Screening and Iolation of
Inhibitors of Soil Microorganisms( II ) -Isolation and Activities of the Inhibitor of Streptomyces Strain DMC-72-
Kim, Kyung-Jae ; Lee, Shung-Hee ; Kim, Jung-Woo ; Kim, Ha-Won ; Shim, Mi-Ja ; Choi, Eung-Chil ; Kim, Byong-Kak ;
The Korean Journal of Mycology, volume 13, issue 4, 1985, Pages 203~212
Of 450 strains isolated from the soil microbes collected in various locations in Korea, a strain had a strong inhibitory activity against bacterial
and was named strain DMC-72 of the genus Streptomyces. The amylase inhibitory metabolite produced by this strain was purified by means of acetone precipitation, adsorption on Amberlite IRC-50 and SP-Sephadex C-25. The inhibitor was found to be a derivative of oligosaccharides by spectral and chemical data. The inhibitor was stable at the pH range of
for half an hour, also inhibited other amylases such as salivary
and glucoamylase. However, it showed no inhibitory activity against
, dextranase, and
. The kinetic studies of the inhibitor showed that its inhibitory effects on starch hydrolysis by
Studies on Cellulolytic Enzymes Produced by Pleurotus spp. in Synthetic Medium( I ) -Effects of Carbon and Nitrogen Sources-
Hong, Jai-Sik ; Lee, Jong-Bae ; Koh, Moo-Seok ; Kim, Jeong-Sook ; Lee, Keug-Ro ; Kim, Myung-Kon ;
The Korean Journal of Mycology, volume 13, issue 4, 1985, Pages 213~219
Among the eight strains, Pleurotus sajor-caju JAFM 1017 was selected as most potent producer of cellulolytic enzymes. The avicelase and CMCase activity reached maximum levels after 10 days, and
activity reached a maximum level after 19 days. Among the various carbon sources, cellulose powder was most effective for the production of avicelase and
, and Na-CMC (sodium carboxymethyl cellulose) was good for the production of CMCase. The optimum concentration of cellulose powder was 1.0% (w/v), and glucose (1.0%) completely depressed the production of enzymes. Nitrates were effective for the production of enzymes, but nitrites did not support growth. The production of cellulolytic enzymes increased as the concentration of urea increased. The appropriate concentration of urea was 0.054% (w/v).
Chromosomal Studies on the Genus Trichoderma
Min, Byung-Re ; Chai, Young-Gyu ; Choi, Yong-Keel ;
The Korean Journal of Mycology, volume 13, issue 4, 1985, Pages 221~224
The life cycle of 17 species of Trichoderma was elucidated to seize the proper stage for observing the nuclear behavior and chromosome count. The most convenient stage for the purpose in their life cycle was the stage just before producing the asexual spore. Of the 17 species in the genus Trichoderma the haploid chromosome numbers were counted 5,6,7 and 10. Six chromosomes were most frequently observed. It is believed that the basic chromosome number is placed between 4 and 10, and that the number might be 6, referring to the related papers. It appears necessary to reclassify the single genus of Trichoderma into at least two or three genera.
Studies on the Varietal Resistance and Effects of Nutrients for Fungal Growth of Pepper Anthracnose Disease Caused by Colletotrichum dematium f. sp. capsicum
Chang, Sun-Hwa ; Chung, Bong-Koo ;
The Korean Journal of Mycology, volume 13, issue 4, 1985, Pages 227~233
Studies on the varietal resistance and effects of nutrients for fungal growth were carried out in order to obtain basic materials for breeding resistant variety and control measures of the red pepper anthracnose disease caused by Colletotrichum dematium f. sp. capsicum. Four cultivars such as Kumchang No. 2, Bulamhouse, Pakistan, Hongilpum were resistant among twenty-one pepper cultivars, and five cultivars including Taiwan pepper were moderate. The remaining twelve cultivars including H-038 and Saegochu were susceptible. These susceptible cultivars were mostly belonged to sweet taste cultivars. Glucose was known the best source for fungal growth, and near 3 percent of carbon concentration was the best for mycelial growth of the fungus. Conidial sporulation was rather decreased by adding high concentrations of C-source, whereas fungal dry weight was a positive tendency in proportion to increasing carbon concentrations. N-sources and vitamins were not remarkable as that for carbon, and rather a decreasing trend for mycelial growth by adding N-source. Especially, the lowest of mycelial growth was in the case of Czapek-Dox plus ammonium sulfate. The medium plus vitamins either niacin or thiamine was slightly increased to mycelial growth.
Changes in Amounts of Polysaccharides and Polyphosphates under Catabolic Repression and Derepression in Yeast (V)
Lee, Ki-Sung ; Choi, Yong-Keel ;
The Korean Journal of Mycology, volume 13, issue 4, 1985, Pages 235~241
The present study was designed to investigate biosynthetic patterns of polysaccharides under catabolic repression and derepression in Saccharomyces uvarum. Correlation coefficients between polysaccharide synthesis and polyphosphate accumulation were examined, according to the culture phase and under various phosphate concentrations (free, limited, sufficient). During catabolic derepression, biosynthesis of glycogen was enhanced. rapidly and highly in the cells grown on minimal medium, compared with those grown on the complete medium. Acid soluble glycogen type was the main component of total glycogen and alkali soluble glycogen was synthesized in small amount, after 24 hr culture, at the time of almost exhaustion of sugar in the medium. Total glycogen was accumulated highly in proportion to the amount of phosphate added to the medium. It could be postulated that type 'C' isoenzyme among ALPase was directly or indirectly correlated with the glucan synthesis. Mannan synthesis indicated maximal amount at the early exponential phase and stationary phase, and also acid soluble sugars at the stationary phase. Correlation coefficient between the mannan synthesis and poly-p-'C' accumulation, and also between mannan synthesis and phospholipid content indicated 0.866 and 0.726, respectively.
Effects of Steroidal Carbamate Derivatives on the Aflatoxin Productivity by Aspergillus flavus
Jung, Seung-Jae ; Suh, Myung-Ja ;
The Korean Journal of Mycology, volume 13, issue 4, 1985, Pages 243~247
Experiments were conducted to study effects of steroidal carbamate derivatives upon mycelial growth and aflatoxin production by Aspergillus flavus ATCC 15517. The basal medium was supplemented with various concentrations of these compounds and inoculated with spores. The developing cultures were incubated for 11 days at
without agitation. Aflatoxins were extracted with chloroform, separated by thin layer chromatography, and quantitated by ultraviolet spectrophotometry. At a concentration of 50 mg per 30 ml of medium., stigmasteryl-N-(2-chloroethyl) carbamate, cholesteryl- N - (2-chloroethyl) carbamate,
carbamate were the most effective in reducing aflatoxin production by Aspergillus flavus. However, cholest-4-ene-3-one-oximino-N-(2-chloroethyl) carbamate, at a concentration of 100 mg per 30 ml, significantly decreased aflatoxin production. There was no significant inhibition of mycelial growth by the addition of the various concentrations of these compounds.
Taxonomic Studies on the Genus Lactarius of Korea(I)
Bok, Jin-Deok ; Shin, Gwan-Chull ;
The Korean Journal of Mycology, volume 13, issue 4, 1985, Pages 249~262
Mushrooms were collected at Mt. Gyeryong, Mt. Chilgab, Mt. Ducyu, Mt. Chiri, Mt Songri and the regions of Chungnam Province for 15 months from July, 1983 to October, 1984. They were classified into 19 species, four varieties and one form of Lactarius. These species were grouped into six sections according to Hesler and Smith. Of these Lactarius, nine species and four varieties appeared to be newly found ones.
The Causal Organism of Pear Scab in Korea
Cho, E.K. ; Cho, W.T. ; Lee, E.J. ;
The Korean Journal of Mycology, volume 13, issue 4, 1985, Pages 263~265
To identify a causal organism of pear scab in Korea, pathogens were isolated from pears of different varieties. Venturia nashicola was found to be the pathogen of the scab disease in Korea.