• Korean Journal of Environmental Biology
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• v.35 no.3
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• pp.335-340
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• 2017

A marine brown alga was collected from Geoje, located on the southern coast of Korea. This species shares the generic features of Dictyota and is morphologically characterized by the combined features of erect or prostrate thallus with smooth margin, dichotomous to subdichotomous branches not twisted at the terminal part, absence of surface proliferations, 1-3 cell layered cortex and unilayered medulla, and lack of involucrum in sporangia subtended by a single stalk cell. In a phylogenetic tree based on rbcL sequences, this species nests in the same clade with Dictyota bartayresiana. The genetic distance between both sequences within the clade was calculated as 1.2%, considered to be within the intra-species range for the genus. Based on these morphological and molecular analyses, this Korean alga is identified as D. bartayresiana described originally from the West Indies. This is the first record of D. bartayresiana in Korea.

• Journal of Microbiology and Biotechnology
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• v.20 no.9
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• pp.1266-1275
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• 2010

Isozyme and protein electrophoresis data from mycelial extracts of 27 isolates of Trichoderma harzianum, 10 isolates of T. aureoviride, and 10 isolates of T. longibrachiatum from Southern Peninsular Malaysia were investigated. The eight enzyme and a single protein pattern systems were analyzed. Three isozyme and total protein patterns were shown to be useful for the detection of three Trichoderma species. The isozyme and protein data were analyzed using the Nei and Li Dice similarity coefficient for pairwise comparison between individual isolates, species isolate group, and for generating a distance matrix. The UPGMA cluster analysis showed a higher degree of relationship between T. harzianum and T. aureoviride than to T. longibrachiatum. These results suggested that the T. harzianum isolates had high levels of genetic variation compared with the other isolates of Trichoderma species.

• Fisheries and Aquatic Sciences
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• v.13 no.4
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• pp.315-319
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• 2010

A single specimen of Carangoides hedlandensis was collected from a set net installed at 25 m depth near Sangju Beach, Namhae, Gyeoksangnamdo, Korea. The morphology of the species was similar to that of C. armatus. Carangoides hedlandensis and C. armatus can be clearly distinguished by the number of gillrakers on the first arch: C. hedlandensis has 20-28 gillrakers whereas C. armatus has 30-39. Unlike other species, interorbital region of the head in C. hedlandensis is bumped. We suggest that C. hedlandensis should be added to lists of Korean fish fauna, and propose a Korean name, "Hokjeon-gaeng-i" for this species.

• Mycobiology
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• v.30 no.1
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• pp.27-30
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• 2002

Two-hundred two yeast strains were isolated from rhizosphere(87 strains) and nonrhizosphere(115 strains) areas of potato, maize, vegetable marrow, and cabbage plants. On the basis of 26 morphological and physiological properties, the isolated yeast strains were assigned to 9 genera and 15 species. Trichosporon beigelii, Kluyveromyces marxianus and Torulaspora delbrueckii were the dominant species. Cryptococcus humicolus and Candida tropicalis were represented by considerable numbers of strains. Of low occurrence were Saccharomyces cerevisiae and Candida blankii. Other yeast species were represented by single or two strains. Total counts of yeast cells per gram dry soil ranged from $1.1{\times}10^3$ to $6.6{\times}10^3$ in soil samples of rhizosphere areas and from $6.5{\times}10^2$ to $5.6{\times}10^3$ in soil samples of nonrhizosphere areas. Types of the tested plants affected not only the total counts of yeast cells but also spectra of yeast species. Relationships of age of potato plant, moisture contests of soil samples, and its pH values and total counts of yeast cells were discussed.

• Journal of Plant Biology
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• v.16 no.3_4
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• pp.1-6
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• 1973

The distribution of plant communities along the Bukhan Riverside in Chun-seong was studied by means of the methods fo Curtis and Pattern. The communities were arranged in a single-dimensioned ordination on the basis of the importance values of the persistent species. Leading dominant species, form the 'low' level to the 'high' levels of the ordination gradient, were Phalaris arundinacea, Salix gilgiana, Artemisia feddei, Zoysia japonica, Pennisetum japonicum, and Arundinella hirta. These species from a continuum from the river to the dry grassland depending upon available soil-moisture. Standing crops in terms of dry weight and the nitrogen content of the above-ground parts of these species showed a good relationship with gradients of available soil-moisture.

• Animal Systematics, Evolution and Diversity
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• v.11 no.3
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• pp.301-314
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• 1995

New and rare species of copepod parasites of the sufperch Ditrema temmincki Bleeker are reported from Korean seas. Two of them, each belonging to Colobomatus of Poecilostomatoida and Caligus of Siphonostomatoida, are described as new speices. The latter species is very peculilar in bearing the single-segmented exopod ini leg 4. Caligus tanago Yamaguti, an incompletely known species, is also described from the same fish host.

• Mycobiology
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• v.50 no.1
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• pp.30-45
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• 2022

During a survey of plant-inhabiting fungi and water niches from Korea, noteworthy fungi were collected; among them, two new species, Paracamarosporium noviaquum sp. nov. and Phyllosticta gwangjuensis sp. nov., are described based on morphology and multi-gene phylogenies. Paracamarosporium noviaquum was characterized by its production of 1-celled and 2-celled conidia, forming conidiomata on only potato dextrose agar medium. Phyllosticta gwangjuensis was characterized by conidia hyaline, ovoid to ellipsoid shape, rounded at both ends, containing numerous guttulae or with a single large central guttule. Additional species were identified as Cosmospora lavitskiae, Monochaetia cameliae, and Roussoella doimaesalongensis, which are reported as new record species from Korea. Detailed descriptions and illustrations of these taxa are provided herein.

• Korean Journal of Environmental Biology
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• v.40 no.2
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• pp.157-163
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• 2022

We analyzed the hair microstructure of Korean small terrestrial mammals, such as Rodentia and Lagomorpha, to classify the characteristics of hair morphology. Micromys minutus showed a unicellular irregular type of medulla structures; on the other hand, the other mammals showed multicellular structures. Regarding the cuticular scale structures, the Rodentia species exhibited a narrow and broad diamond petal type, while the Lagomorpha species exhibited an elongated petal type. Interestingly, the hair cross-sections showed quite unique characteristics. We constructed hair identification keys to distinguish species with a single hair. The dichotomous key of Rodentia and Lagomorpha can be used for their behavioral ecology and dietary analysis of upper predators to serve as the basis for ecological research.

• Mycobiology
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• v.39 no.1
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• pp.59-60
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• 2011

One new species of the genus Euphoriomyces was collected on Scaphisoma rufum Achard (Scaphidiidae) in South Korea. Euphoriomyces chaekyui sp. nov. is unique in having a single terminal phialide shaped an elongated cylindrical form on the distal portion of the main axis.

• Animal Systematics, Evolution and Diversity
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• v.26 no.3
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• pp.321-323
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• 2010

Korean Bryocoris species, B. gracilis and B. montanus, were reviewed. Of these, B. gracilis Linnavuori, 1962 is first reported in Korea and diagnosed, based on a single female specimen collected from Mount Hwangmaesan, Gyeongsangnam-do province. A key to the Korean species and photographs on external features are given.