• Journal of Ecology and Environment
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• v.30 no.3
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• pp.245-250
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• 2007

We investigated the moth fauna and monthly changes in moth populations at three sites - Dogapsa, Gyungpodae and Muwisa - in Mt. Wolchul National Park, Jeollanam-do, South Korea. From February to October, 2006, we collected a total of 1677 individuals comprising 348 species in 14 families. Monthly changes in the abundance of species and individuals showed an M-shaped pattern, with the highest peak in June and a second high peak in August. The diversity of the three dominant families (Noctuidae, Geometridae and Pyralidae) at the three sites varied, possibly due to differences in vegetation and other environmental factors. Diversity at Dogapsa was relatively higher than Gyungpodae and Muwisa, but, the fauna at Dogapsa more closely resembled Muwisa than Gyungpodae. 28 species occurred at the same time in all three sites, included the families Geometridae (14 species), Noctuidae (9 species), Pyralidae (2 species), Arctiidae (1 species), Nolidae (1 species), and Limacodidae (1 species). The present study provided baseline information about biodiversity and phenological patterns of moth abundance and permitted evaluation of moth biodiversity as a monitoring tool for vegetation structure and environmental change.

• Animal cells and systems
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• v.8 no.3
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• pp.139-143
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• 2004

Two new species of the genus Psammocinia (Dictyoceratida, Irciniidae), P. conulosa n. sp. and P. ulleungensis n. sp., are described from Namhaedo Island and Ulleungdo Island, Korea. Psammocinia conulosa n. sp. seems to be close to both P. amodes Cook and Bergquist, 1998 and P. hawere Cook and Bergquist, 1996 on the basis of the skeletal structure. However, these three species are clearly separated by the following differences: Shape of P. amodes is spatulate and thin, with a broad blade narrowing to a semi-cylindrical stalk; P. hawere forms cups with a shallow excavated bowl, and attached to the substratum by a narrow base. The whole surface of the new species is very finely conulose. Psammocinia ulleungensis n. sp. is similar to P. gageoensis Sim and Lee, 2001 in shape, but this species is easily distinguished from P. gageoensis by the simple skeletal structure.

• Animal Systematics, Evolution and Diversity
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• v.32 no.1
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• pp.9-20
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• 2016

Two new species of poecilostomatoid copepods associated with echiurans are described from an intertidal mud flat in the Yellow Sea. A new genus Echiuricopus is created to accommodate two new species, E. aprilis and E. tenuipes. Major differences between the two new species are displayed in body length, length of caudal ramus seta I, length/width ratio of leg 5 exopod, and armature of the first antennular segment. Echiuricopus n. gen. is closely related to the genus Goidelia Embleton, 1901, but is distinguished from the latter chiefly by having seven caudal setae, a claw-like process on the first antennular segment, one claw-like process on the maxillary syncoxa, the absence of an inner coxal seta on legs 1-4, different armatures on legs 1-4, and an elongate leg 5 exopod.

• Korean journal of applied entomology
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• v.56 no.3
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• pp.241-247
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• 2017

In this study, a new opilionid species of Paranemastoma Redikorzevi, 1936 is described from northern Turkey. Fine structures of extremities, dorsal integument and genitalia of Paranemastoma karolianus sp. n. are presented. Differences between the new species and related species are discussed.

• Animal Systematics, Evolution and Diversity
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• v.31 no.1
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• pp.51-65
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• 2015

Two newly recorded species belonging to the genus Lamprops, family Lampropidae found in the East Sea (Sea of Japan) of Korea are reported: Lamprops carinatus Hart, 1930 and L. pseudosarsi Tsareva and Vassilenko, 1993. Lamprops carinatus is characterized by having a smooth carapace without oblique ridges and one long and two pairs of terminal unequal setae on the telson. Lamprops pseudosarsi is easily distinguished by having two pairs of oblique ridges on the carapace and one long and two pairs of terminal subequal setae on the telson. The collected specimens were congruent with the original descriptions, except for several minor differences. This is the first record of the genus Lamprops from Korea. Especially, new information on the mouthparts of these species is given, and the male of L. pseudosarsi is described for the first time. Keys are also provided to the Korean genera of the Lampropidae and species of Lamprops.

• Archives of Pharmacal Research
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• v.28 no.5
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• pp.592-597
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• 2005

An HPLC/Esl/MS method has been developed to identify and quantify the spirostanol glycosides in the rhizomes of five Polygonatum species. The relative distribution of two steroidal saponins in each extract was established using the selective ion monitoring (SIM) mode via an electrospray ionization (ESI) source. It was found that there were significant differences in the amount of spirostanol glycosides among the Polygonatum Species. The results showed that this method could be used to identify the steroidal saponins in the extracts and differentiate Polygonatum species with high sensitivity and reproducibility in a short time. Fragmentation patterns of the two reference compounds were also discussed with the electrospray ionization multi-stage tandem mass spectroscopy (ESI-MS$^n$).

• Korean journal of applied entomology
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• v.23 no.2 s.59
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• pp.102-108
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• 1984

These researches were carried out to investigate the morphology of different species of Trichoderma and the possibilities of differentiation of the species of Trichoderma by electrophoretic methods. Variations between the isolates of a species of Trichoderma indicate the genetical differences, also isozyme and protein patterns will be useful to investigate genetical variations betweens the isolates. It might be possible that distinct bands of isozymes of esterase, phosphotase, catalase, catalase differentiate species of Trichoderma.

• The Plant Pathology Journal
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• v.37 no.5
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• pp.446-454
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• 2021

Plant-parasitic nematodes are not only an important constraint on agricultural crop production, but also cause both direct and indirect damage to turfgrass, which is a ground cover plant. However, studies on plant-parasitic nematodes of turfgrass in Korea are scarce. A survey for plant-parasitic nematodes was carried out on 13 golf courses in Korea. The results yielded 28 species/taxa belonging to 16 genera and 12 families of plant-parasitic nematodes. Among the isolated species, Helicotylenchus microlobus, Mesocriconema nebraskense, Tylenchorhynchus claytoni, Mesocriconema sp., and Meloidogyne graminicola were the most prevalent species in all management zones. Twelve species were new records of plant-parasitic nematodes in Korea. Highest maximum densities were showed by T. claytoni, Paratylenchus nanus, M. nebraskense, M. graminicola, and H. microlobus. Diversity (H'), was significantly higher in fairways compared to tees and greens, though species evenness (J') and dominance (D) showed no statistically significant differences. This information is crucial in nematode problem diagnosis, and the subsequent formulation of management strategies.

• Animal Systematics, Evolution and Diversity
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• v.35 no.3
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• pp.136-139
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• 2019

The pulmonate gastropod Ellobium chinense (Pfeiffer, 1864) is an endangered marine species along the South Korean coasts due to habitat destruction and population declines. We sequenced the cytochrome c oxidase subunit 1 (COI) of 25 E. chinense specimens collected from five coastal sites in South Korea, and identified 16 unique haplotypes. The maximum intraspecific variation among individuals was 1.6%, while interspecific differences from another ellobiid species, Auriculastra duplicata (Pfeiffer, 1854), ranged from 21.9 to 23.0%. Our barcoding data will be useful to elucidate the phylogenetic relationships among pulmonate gastropods and infer the population genetic structure of E. chinense.

• Mycobiology
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• v.50 no.2
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• pp.104-109
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• 2022

Fungi of the genus Tuber are ectomycorrhizal fungi that form a symbiotic relationship mainly with oak and hazel trees. Tuber spp. exhibit a highly selective host plant preference; thus, for cultivation purposes it is important to select an appropriate host plant for successful mycorrhization. In addition, as mycorrhizal characteristics differ according to Tuber spp., it is necessary to understand the differences in mycorrhizae according to the fungal species. Tuber huidongense and Tuber himalayense were recently discovered in Korea; therefore, we used spore suspensions from these two species to inoculate two species of oak trees, Quercus acutissima and Quercus dentata, to compare colonization rates and morphologies of the mycorrhizae. The colonization rates demonstrated that the different Tuber spp. favored different host plant species. In addition, unique morphological and anatomical characteristics were observed for T. huidongense and T. himalayense depending on the host species. These findings can lead to new economically important agricultural activities related to truffle cultivation in Korea.