• Korean Journal of Environmental Biology
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• v.39 no.4
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• pp.573-580
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• 2021

Unarmored and thin-walled dinoflagellates were collected from brackish and coastal waters of Korea from August 2019 to August 2021. A total of 10 species belonging to orders Sussiales and Gymnodiniales were isolated and established as clonal cultures. Of them, five species (Biecheleria brevisulcata, Lepidodinium chlorophorum, Karlodinium decipiens, Kirithra asteri, and Wangodinium sinense) are newly recorded in Korea and examined using a light microscope (LM) and a scanning electron microscope (SEM). Their molecular phylogeny was inferred from LSU rDNA sequences. Here, we present taxonomic information, morphological features, and molecular phylogenetic positions of these unrecorded dinoflagellate species.

• Journal of Species Research
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• v.2 no.2
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• pp.227-244
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• 2013

We investigated the flora of Jang-do (Isl.), an island of the Heuksan archipelago, located in Heuksan-myeon, Shinan-gun, Jeollanam-do and discussed the remarkable plants found there. Thirteen-field trips (total 27 days) were completed from May of 2004 to May of 2013. As a result, we identified the distribution of 423 taxa in Jang-do (Isl.), comprising 104 families, 285 genera, 335 species, 78 varieties and 10 forms. There are a total of 95 taxa of floristic regional indicator plants. The floristic regional indicators are as follows; four taxa of level V such as Impatiens furcillata, four taxa of level IV such as Hosta yingeri, 14 taxa of level III such as Ophioglossum vulgatum, 5 taxa of level II, and 58 taxa of level I. In addition 10 red data plants, 2 vulnerable species (VU) including Calanthe striata for. sieboldii, and 4 least concern species (LC) like Ardisia crenata, 2 not evaluated species (NE) such as Hosta yingeri, were found in the investigated area. An unrecorded species, Fragaria (Rosaceae), was found in a forest of Jang-do (Isl.) for the first time in Korea.

• Journal of Species Research
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• v.11 no.4
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• pp.321-329
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• 2022

Four species of cyanobacteria that are unrecorded in Korea were isolated from freshwater and brackish water. These four species are Laspinema thermale of Laspinemaceae, Planktothricoides raciborskii and Planktothrix spiroides of Microcoleaceae, and Cephalothrix lacustris of Phormidiaceae, all belonging to the order Oscillatoriales. Laspinema thermale is morphologically characterized as apical cells that are longer than other cells. In this strain, the similarity of the 16S rRNA gene sequence with the previously reported L. thermale strains were 99.30-99.50%. Planktothricoides raciborskii, which is characterized by bluntly conical morphology of apical cells, showed 98.80-99.50% of similarity of the 16S rRNA gene sequence to the previously reported P. raciborskii strains. Planktothrix spiroides are characterized by floating due to gas vacuoles. In this strain, the similarity of the 16S rRNA gene sequence with the previously reported P. spiroides strains were 99.80-99.90%. Cephalothrix lacustris, characterized by having calyptra in apical cells, showed 99.80-99.90% similarity of the 16S rRNA gene sequence to previously reported C. lacustris strains. Also, these species were clustered in the same clade in phylogenetic analysis using 16S rRNA gene sequences with each corresponding species.

• Animal Systematics, Evolution and Diversity
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• v.26 no.1
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• pp.21-27
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• 2010

Two marine euplotid ciliates, i.e. Euplotes cristatus Kahl, 1932 and E. minuta Yocom, 1930, were collected from the public waterfront of Incheon on the Yellow Sea and from the Songjeong Beach, Busan, in the Strait of Korea, respectively. These two species were verified as unrecorded species in Korea. These species were described based on live observation, protargol impregnation, and silver nitrate impregnation. In addition, the small subunit ribosomal DNA (SSU rDNA) sequences of the two species were compared with previously known sequences of the Euplotes species. Euplotes cristatus has an elongated oval form, size in vivo of $60-84{\times}38-68\;{\mu}m$, 35-50 adoral zone of membranelles (AZM), 10 frontoventral cirri (FVC), 5 transverse cirri (TC), 4-5 caudal cirri (CC), 8 dorsal kineties (DK), 10-16 dorsal cilia of middle DK, and silverline system of single-vannus type. Euplotes minuta has a small ovoid form ($44-53{\times}26-35\;{\mu}m$ in vivo), 31-41 AZM, 10 FVC, 5 TC, 4 CC, 9 DK, 10-12 dorsal cilia of middle DK, and silverline system of single-vannus type.

• Journal of Species Research
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• v.9 no.2
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• pp.77-84
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• 2020

As a part of the research project "Survey of freshwater organisms and specimen collection," freshwater samples were collected from the Nakdong River. Among the bacterial isolates, we selected strains that showed higher than 98.7% 16S rRNA gene sequence similarity with confirmed bacterial species previously unreported in South Korea. The 14 new records to South Korea were phylogenetically diverse and belonged to four phyla, six classes, 11 orders, and 14 genera. At the genus level, these species were found to be affiliated with Reyranella, Ferrovibrio, Brevundimonas, and Aquidulcibacter of the class Alphaproteobacteria; Pseudomonas, Cellvibrio, and Photobacterium of the class Gammaproteobacteria; Paenibacillus and Bacillus of the phylum Firmicutes; Chryseobacterium, Flavobacterium, Pedobacter of the phylum Bacteroidetes; and Actinomadura and Leifsonia of the phylum Actinobacteria. These species were further characterized by examining their Gram reaction, colony and cell morphologies, biochemical properties, and phylogenetic positions. The detailed descriptions of these 14 previously unreported species are provided.

• Korean journal of applied entomology
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• v.52 no.4
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• pp.321-326
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• 2013

Eleven Coleophora species were found in a faunistic survey for the family Coleophoridae (Lepidoptera: Gelechioidea) in Baengnyeong and Yeonpyeong Islands, located near the Northern Limit Line in the West Sea. Among them, three species Coleophora adjunctella Hodgkinson, C. chenopodii Oku, and C. kurokoi Oku have been recorded for the first time in Korea. For the newly recorded species, taxonomic remarks and illustrations of the adults and female genitalia have been provided.

• Korean Journal of Plant Taxonomy
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• v.39 no.4
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• pp.304-308
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• 2009

One new naturalized species was recorded from Jeollanam-do Yeongam-gun, Daegu, and Daejeon in Korea. Hedyotis corymbosa grows well where there is enough sunlight; in moist, sandy soil. Hedyotis corymbosa (Rubiaceae) can be distinguished from other species in the same genus by longer peduncles, and a lot of flowers. We gave it the Korean name 'San-bang-back-un-pul' based on the specific epithet 'corymbosa'.

• Mycobiology
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• v.45 no.4
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• pp.263-269
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• 2017

The genus Peronospora, an obligate biotrophic group belonging to Oomycota, causes serious damage to a variety of wild and ornamental plants, as well as cultivated crops, such as beet, rose, spinach, and tobacco. To investigate the diversity of Peronospora species parasitic to Stellaria and Pseudostellaria (Caryophyllaceae) plants in Korea, we performed a morphological analysis on dried herbarium specimens and molecular phylogenetic inferences based on internal transcribed spacer rDNA and cox2 mitochondrial DNA sequences. As a result, it was confirmed that there are four species of Peronospora parasitic to specific species of Stellaria and Pseudostellaria, all of which were hitherto unrecorded in Korea: P. alsinearum (ex Stellaria media), P. stellariae-aquaticae (ex Stellaria aquatica), P. stellariae-uliginosae (ex Stellaria alsine), and P. pseudostellariae (ex Pseudostellaria palibiniana). In addition, Peronospora specimens parasitic to Pseudostellaria davidii differed morphologically from P. pseudostellariae owing to the large and ellipsoidal conidia; this morphological discrepancy was also validated by the high genetic divergence between the two species. Peronospora casparyi sp. nov. is described and illustrated here.

• Korean journal of applied entomology
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• v.40 no.1
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• pp.5-13
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• 2001

Two unrecorded species of Heteroderinae, Clobodera hypolysi Ogawa, Ohshima and Ichinohe, 1983 and Sarisodera hydrophila Wouts and Sher, 1971 from Korea were firstly reported. The Korean specimens well correspond with the original description of Globodera hypolysi except stylet length of the juveniles, slightly shorter (21~24 vs. 24~25 $\mu$m) and shorter distance from the anus to the fenestra in cyst (22~50 vs. 25~80$\mu$m). The measurements of Korean specimen of Sarisodera hydrophila are slightly short compared with the type species; Female body length 367.2~597.6$\mu$m vs 359~688$\mu$m; Stylet length 37~44$\mu$m vs 38~46$\mu$m; Male body length 662~11987m vs 579~1405$\mu$m; stylet length 37~43.8$\mu$m vs 38~46$\mu$m. Juvnile body length 460~536$\mu$m vs 466~5587m. stylet length 32~387m vs 39~43$\mu$m.

• Mycobiology
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• v.42 no.2
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• pp.132-139
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• 2014

Basidiomycetous macrofungi play important roles in maintaining forest ecosystems via carbon cycling and the mobilization of nitrogen and phosphorus. To understand the impact of human activity on macrofungi, an ongoing project at the Korea National Arboretum is focused on surveying the macrofungi in unexploited areas. Mt. Oseo was targeted in this survey because the number of visitors to this destination has been steadily increasing, and management and conservation plans for this destination are urgently required. Through 5 field surveys of Mt. Oseo from April to October 2012, 116 specimens of basidiomycetous macrofungi were collected and classified. The specimens were identified to the species level by analyzing their morphological characteristics and their DNA sequence data. A total of 80 species belonging to 57 genera and 25 families were identified. To the best of our knowledge, this is the first study to identify five of these species-Artomyces microsporus, Hymenopellis raphanipes, Pholiota abietis, Phylloporus brunneiceps, and Sirobasidium magnum-in Korea.