• The Korean Journal of Mycology
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• v.20 no.2
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• pp.85-94
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• 1992

Five sporocarpic species of Glomus were found at the four sites of the different plant's cultivations in Korea ; G. clavisporum, G. liquidambaris, G. rubiforme, G. sinuosum, and G. taiwanense. The morphological characteristics of these species collected were observed and compared under light microscopes. Three species G. clavisporum, G. liquidambaris and G. taiwanense were similar with each other in the aspects of having no peridium and the clavate spores orderly arranged within sporocarps. G. sinuosum was different from the other in the aspects of having a thick and sinuous peridium and the orderly arranged spores within sporocarps. However G. rubtforme was different from the other four species in aspects of sporocarps haying ovoid spores arranged irregulary.

• Korean Journal of Plant Taxonomy
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• v.38 no.4
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• pp.459-476
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• 2008

Taxonomic characteristics of spores of 17 species belonging to 6 genera of the Korean Thelypteridaceae are examined. Description of each species and key to the species are provided. Spores of Korean Thelypteridaceae are monad and monolete with bilateral symmetry. Perispore, the sporoderm of spore, was found in all the species examined. The perispores and exospores of Thelypteris japonica var. japonica, T. japonica var. glabrata and Pseudocyclosorus subochthodes are much similar to each other, but the rest of taxa examined shows diverse patterns of the surface ornamentation of perispores and exopores enough to distinguish genera and sometimes to distinguish species in some genera. Previous study reported that perispore is not easily distinguished from exospore in Cyclosorus and Leptogramma. However, three species of Cyclosorus examined here show different pattern having scabrate or verrucate exospores and cristate or echinate perispores. Leptogramma pozoi ssp. mollisima also have echinate perispore and fossulate exospore. Macrothelypteris oligophlebia var. elegans and M. viridifrons have scabrate exospore which is contrast to previous report of reticulate exospore. Thelypteris glanduligera, T. angustifrons and T. laxa show same patterns of perispore and exospore with reticulate perispore and fossulate exospore and hence cannot be distinguished by spores only.

• Research in Plant Disease
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• v.10 no.4
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• pp.279-284
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• 2004

A rust fungus has caused a serious early defoliation of Zanthoxylum schinifolium during growing seasons every year at the plantations located at Hadong and Jinju, Kyeongsangnam-Do in Korea. In order to identify the rust fungus and clarify its life cycle in Korea, aeciospores from Pinus thunbergii were artificially inoculated on the leaves of Z. schinifolium. Uredinial stage was successively formed on the leaves of Z. schinifolium. Based on the artificial inoculation test and on the morphological features of the dried specimens collected from P. thunbergii and Z. schinifolium, this rust fungus was identified as Coleosporium xanthoxyli. Morphological features of aecial and uredinial stages of the species were described. The first symptom of the infection was developed from later June to early July. And leaf infection ratio was 17.8%-58.7% during August at Hadong and Jinju regions of Kyeongsangnam-Do in Korea.

• Applied Biological Chemistry
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• v.50 no.2
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• pp.101-106
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• 2007

Twenty-two strains of nematophagous fungi were isolated from 100 soil samples. Nematophagous fungi were classified into three categories; 3-dimensional adhesive nets (A group), 2-dimensional adhesive nets (B group) and constricting ring (C group). Nine strains were selected and identified on the basis of morphological characteristics (hypha, conidiophore, form and size of conidia, number of conidia, node of conidophore, number and location of septa, size and color of chlamydospore) and ITS (internal transcribed spacer) region of rDNA sequences. As the results, the isolated were identified as belonging to the species of Monacrosporium thaumasium (Kan-2, Kan-4, Kan-11), Arthrobotrys oligospora (Kan-9, Kan-13, Kan-20, Kan-21), A. musiformis (Kan-12), and A. dactyloides (Kan-22).

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.200-201
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• 2000

와편모조류의 대부분은 생존에 불리한 환경조건이 되면 저질에 침적되어 휴면포자의 형태로 휴면시기를 보내다가 온도, 광, 산소, 영양염 등의 환경요인 변동과 내재적 주기에 의해 발아가 유도된다. 이러한 휴면포자는 "개체군 씨앗 "으로서 지역적 적조발생의 잠재력이 되는 것으로 시사되어 왔다. (중략)어 왔다. (중략)

• Journal of Ginseng Research
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• v.27 no.4
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• pp.195-201
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• 2003

Chlamydospore formation from mycelia and conidia of Cylindrocarpon destructans isolated from the root rot lesion of the Panax ginseng was investigated by scanning electron and light microscopy. Typical chlamydospores were formed only from hyphae but not from conidia on culture media. However, immature chlamydopspore-like cells were formed from microconidia after 12 days of incubation at 20$^{\circ}C$ on Czapek Dox broth (CDB) adjusted to pH 4.0. Chlamydospores were yellowish or reddish brown in color, and produced singly or in chain with the hyphal intercalary or terminal position on potato-dextrose agar, V-8 juice agar and CDB with no addition of nitrogen sources after 16∼20 days of incubation at 20$^{\circ}C$. They were 11.3 to 11.9 $\mu\textrm{m}$ in diameter, having many lumps-like warts on their surface with the length of 1.5 to 1.8 $\mu\textrm{m}$.

• The Korean Journal of Mycology
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• v.47 no.1
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• pp.19-27
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• 2019

We extracted arbuscular mycorrhizal fungal (AMF) spores from rhizospheres of three plants from Upo Wetland, Korea. We identified the isolated AMF spores based on morphological characteristics and phylogenetic analysis of partial 18S rDNA nucleotide sequences. The species diversity of AMF spores was calculated among the study sites and host plants. Consequently, nine species from six genera of AMF spores were identified. We confirmed the species diversity of the AMF spores in rhizospheres affected by host plants in the wetland. In the course of this study, we confirmed a previously unreported AMF species in Korea: Diversispora epigaea. We described the morphological features and molecular characteristics of this previously unreported AMF species.

• Journal of Plant Biology
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• v.37 no.1
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• pp.43-51
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• 1994

Spore morphology of 14 species of Ophioglossaceae is examined, and descriptions and key based on spore morphology are provided. In addition, spores of one species of Angiopteris and three species of Osmunda are examined for comparision with those of Ophioglossaceae. Spore shape at proximal face is sub triangular or triquete in Botrychium and circular in Ophiog~ lossum, Angiopteris and Osmunda. Based on the wall sculpturing patterns, three groups can be recognized within Botrychium, and the differences of wall sculpturing among these groups are smaller as compared to those among Botrychium, Ophioglossum, Osmunda and Angiopteris. This result supports the previous infrafamilial system of Clausen, which was mainly based on the characteristics of vernation, habit, fertile and sterile segments of the leaf, and gametophyte. Spores of nine species of Ophioglossum, which are circular in proximal face and fossulate or foveolate in wall sculpturing, are quite uniform as compared to those of Botrychium. Therefore they should be kept under a single genus rather than split into four genera suggested by Nishida (1952).(1952).

• The Korean Journal of Mycology
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• v.22 no.2
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• pp.172-183
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• 1994

The productions of arbuscular mycorrhizal fungal(AMF) spores were observed by adding three different commercial fertilizers on AMF inhabiting soils. Various morphological features, vesicles, arbuscles, sporulations of spore, and flower-like-structures, were also found in the mycorrhizal roots during 80 days after transplanting. Spore prodcutions of the employed AMF were observed to be periodically increased with the intervals of 40 days. Sorghum, green onion, hot pepper, and wild legume plants were appeared to be a good plant for productions of AMF and as the host of AMF. The productions of AMF spores was inversely related to phosphate fertilizer, and also observed to be low in the plant pots added with whole balanced fertilizers.

• Korean Journal Plant Pathology
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• v.12 no.2
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• pp.245-250
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• 1996

식물병원균 Botrytis cinerea와 Fusarium oxysporum에 대한 생물학적 방제의 기초자료를 얻기 위하여 살충성 진균 Beauveria bassiana의 식물병원균에 대한 균사성장저해, 포자발아 억제, 균사와 포자의 형태변화 등의 효과를 살펴보았다. 평판배지 상에서 두 식물병원균의 균사생장이 저해되었으며, 저해효과는 배지종류에 따라 달랐는데 B. cinerea의 경우 PDA배지에서 가장 크게 저해되었으며 F. oxysporum의 경우에는 TSA배지에서 가장 크게 저해되었다. B. bassiana는 $25^{\circ}C$에서 6일간 배양했을 때 F. oxysporum에 대한 항균력이 가장 높았으며 동시에 최대의 균체량을 생산하였다. 또한 B. bassiana의 배양여액을 식물병원균에 30% 농도로 첨가하여 배양했을 때 식물병원균의 포자 발아율은 B. cinerea, F. oxysporum에서 각각 30%(control: 88.2%), 10.0%(control: 78.6%)로 낮아졌으며 발아 개시 시간도 4~8시간 지연되었다. 현미경을 통한 미세구조관찰에서는 10%의 B. bassiana배양여액을 첨가했을 때 F. oxysporum의 포자 크기가 1/2~1/3으로 줄어들었으며 균사와 격막의 형태도 비정상적으로 변하여 균사외막과 격막-격막 사이의 구분이 불명확해졌다.