• Korean Journal of Veterinary Research
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• v.30 no.3
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• pp.317-331
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• 1990

Chromosomes of gonadal tissues from Fasciola spp, Eurytrema pancreaticum and Calicophoron calicophorum occurred Korean cattle were egamined using modified air-drying method. To compare their phenotype with three different genotypes among Fasciola spp, the adult and egg si2e were measured since they have been known as important taxonomical characters. The results obtained were as followed; Cattle liver fluke, Fasciola spp were classified into three types based on their chromosomal complements such as individual with 2o chromosome(diploid), 30 chromosome(triploid) and 20/30 mosaic constitution(mixoploid). The propotions of appearance of three types were 40.00%, 54.29% and 5.71%, respectively. The frequency of three types in type I which was regarded as F gigantica were 58.82% for diploid, 35.29% for triploid and 5.88% for mixoploid, but in type II which was regarded as F hepatica were 72.2% for triploid, 22.22% for diploid and 5.56% for mixoploid. Egg length of triploid forms was significantly larger than that of diploid forms and egg size of mixoploid forms was similiar to that of triploid forms. Worm size of triploid forms was larger than that of diploid forms and was more similar to that of mixoploid forms, but the statistical data were not significant. Diploid chromosome consisted of one pair of metacentric chromosome(m), four pairs of submetacentric chromosomes(sm), five pairs of subtelocentric chromosomes(st), while triploid chromosome consisted of one pair of metacentric chromosome, seven pairs of submetacen.tric chromosomes, one pair of subtelocentric chromosome and telocentric chromosome(t), respectively. In mixoploid chromosome, constitution of the chromosomes of diploid or triploid cell was consistent with that of diploid or triploid. Chromosomes of gonadal tissues from pancreatic fluke, Eurytrema pancreaticum consisted of 13 pairs of homologs(2n=26, n=13). The mitotic and meiotic divisions were observed frequently. In the mitotic metaphase, Karyotype consisted of five pairs of metacentric chromosomes, four pairs of submetacentric chromosomes, three pairs of subtelocentric chromosomes and one pair of telocentric chromosome. Chromosomes of gonadal tissues from stomach fluke, Calicvphoron calicophorum consisted of 9 pairs of homologs(2n=18, n=9). The meiotic divisions was frequently observed, but mitotic divisions was rare. In the mitotic metaphase, Karyotype consisted of two pairs of metacentric chromosomes, three pairs of submetacentric chromosomes and four pairs of subtelocentric chromosomes. Karyotype of Calicophoron calicophorum differed from that of Japanese C calicophorum which was similar to that of Paramphistomum cervi of Korean cattle. Though that of Calicophoron calicophorum of Korean cattle was similar to that of Paramphistomum explanatum of Korean cattle, that have been recognized to be a different species of fluke.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.19 no.2
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• pp.19-39
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• 2016

This study was carried out to investigated the flora of Naknam-Jeongmaek, Korea. The survey sites were Gilmajae, Mt. Muryang, Mt. Yeohang, Mt. Muhak, Mt. Cheonju and Mt. Sineo. The flora were summarized, numbering 666 taxa including 112 families, 357 genera, 574 species, 4 subspecies, 73 varieties and 15 forms. The threatened species was Aconitum austrokoreense. The rare plants were 12 taxa including Asarum maculatum, Wikstroemia ganpi, Viola albida, Tricyrtis macropoda and so forth. The Korean endemic plants were 19 taxa including Salix koriyanagi, Thalictrum actaefolium var. brevistylum, Weigela subsessilis, Hosta minor and so forth. The specific plants by floristic region were 81 taxa including 38 taxa of grade I, 19 taxa of grade II, 16 taxa of grade III, 7 taxa of grade IV and 1 taxa of grade V. The naturalized plants were 32 taxa including Rumex crispus, Physalis angulata, Erechtites hieracifolia, Taraxacum officinale and so forth. The invasive alien plants were Ambrosia artemisiifolia and Aster pilosus.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.22 no.6
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• pp.41-61
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• 2019

The purpose of this study was carried out to present the basic data for constructing a ecological stream, Shindangcheon stream located in Gyeongju-si, Gyeongsangbuk-do, South Korea. From August 2017 to June 2019, a total of 7 surveys were conducted. The numbers of vascular plants were summarized as 388 taxa including 75 families, 246 genera, 360 species, 4 subspecies, 19 varieties, 2 forms and 3 hybrids. The most families of taxa were Poaceae (59 taxa), Asteraceae (47 taxa), Fabaceae (27 taxa), Rosaceae and Cyperaceae (20 taxa, respectively), and Polygonaceae and Brassicaceae (15 taxa, respectively). The rare plant was Aristolochia contorta Bunge, and the Korean endemic plants were 4 taxa, such as Populus × tomentiglandulosa T.B.Lee, Salix koriyanagi Kimura ex Goerz, Lespedeza maritima Nakai, and Weigela subsessilis (Nakai) L.H.Bailey. The specific plants by floristic region found in this site were 13 taxa comprising 8 taxa of grade I, 4 taxa of grade III, and 1 taxon of grade IV. The naturalized plants were 73 taxa, such as Fallopia dumetorum (L.) Holub, Persicaria orientalis (L.) Spach., Potentilla supina L. var. ternata Pterm., and so forth. The invasive alien plants were 6 taxa, such as Rumex acetosella L., Sicyos angulatus L., Solanum carolinense L., Ambrosia artemisiifolia L., Lactuca serriola L., and Symphyotrichum pilosum (Willd.) G.L.Nesom..

• Journal of the Korean Society of Environmental Restoration Technology
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• v.16 no.2
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• pp.75-92
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• 2013

The vascular plants of Thuja orientalis community in Seokmun-bong, Danyang were listed 222 taxa (4.5% of all 4,881 taxa of vascular plants); 67 families, 150 genera, 163 species, 2 subspecies, 43 varieties and 14 forms. Limestone plants, 29 taxa; Asplenium rutamuraria, Celtis koraiensis, Goodyera coreana, etc. So, Based on the legal protection species, endangered wild plants II, were recorded; Thalictrum coreanum (EN) and rare plants, 8 taxa; Thuja orientalis (LC), Exochorda serratifolia var. serratifolia (LC), Diarthron linifolium (EN), Bupleurum falcatum (VU), Lithospermum erythrorhizon (LC), Dracocephalum argunense (EN), Polygonatum robustum (EN), etc. and endemic plants, 3 taxa; Populus tomentiglandulosa (Planted plant), Thalictrum actaefolium var. brevistylum, Asperula lasiantha, etc. Based on the list of specific plants, 29 taxa; Thalictrum coreanum in class V, 7 taxa (Neillia uyekii for. uyekii, Prunus sibirica, Abelia coreana, etc.) in class IV, 8 taxa (Spiraea trichocarpa, Polygala tatarinowi, Asparagus oligoclonos, etc.) in class III, 2 taxa (Potentilla dickinsii var. dickinsii, Weigela florida) in class II, 11 taxa (Morus cathayana, Buxus microphylla var. koreana, Zizyphus jujuba var. jujuba, etc.) in class I. Based on the list of naturalized plants, 10 taxa (Robinia pseudoacacia, Oenothera biennis, Festuca arundinacea, etc.), naturalization rate (NR) was 4.5% of all 222 taxa of vascular plants and urbanization index (UI) was 3.1% of all 321 taxa of naturalized plants.

• The Journal of the Korean bone and joint tumor society
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• v.2 no.1
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• pp.111-115
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• 1996

Benign osteoblastoma, a rare tumor which forms osteoid and woven bone, represents 3% of benign and 1% of all primary bone tumors. It can involve anywhere in the axial skeleton, which is most common in the spine (34%). But the lesion of the calcaneus is extremely rare. The ratio of males to females is 2:1, with 80 percent of the patients being under thirty years of age. Pain is the most common symptom and rarely pathologic fracture. Osteoblastoma is a benign tumor but has a high recurrence rate after intracapsular malignant change. Therefore, choice of surgical procedure is the 'enbloc' resection. Authors have experienced a case of osteoblastoma developed in calcaneus. The treatment was wide resection and triple arthrodesis. We have reported here the case in which osteoblastoma occured in calcaneus of the right foot.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.9 no.3
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• pp.59-75
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• 2006

The vascular plants of this site was listed 360 taxa; 86 families, 229 genera, 311 species, 42 varieties and 7 forms. Specific plant species by floral region were total 40 taxa; 2 taxa(Crypsinus hastatus, Prunus yedoensis) in class V, Patrinia rupestris in class IV, 6 taxa(Elymus mollis, Carex laticeps, Poncirus trifoliata, Melia azedarach var. japonica, Koelreuteria paniculata, Crepiastrum lanceolatum) in class III, Cirsium schantarense in class II, 30 taxa(Lygodium japonicum, Pteris multifida, Phacelurus latifolius, Asparagus cochinchinensis, Ficus erecta, Machilus thunbergii, Zanthoxylum planispinum, Euphorbia esula, Mallotus japonicus, Cayratia japonica, Camellia japonica, Glehnia littoralis, Lysimachia fortunei, Messerschmidia sibirica, Ixeris repens etc.) in class I. The naturalized plants in this site were 14 families, 34 genera, 41 species, 1 varieties, 42 taxa and naturalization rate was 20.3% of all 207 taxa vascular plants. Based on the list of the rare plants by the Forest Research Institute, 2 taxa were recorded in the studied areas; Phacelurus latifolius, Crypsinus hastatus and based on the list of Korean endemic plants, 7 taxa were recorded; Populus tomentiglandulosa, Filipendula glaberrima, Prunus yedoensis, Forsythia koreana, Paulownia coreana, Weigela subsessilis, Carpinus coreana. So, wild plants disturbing ecosystem like Solanum carolinense and Ambrosia artemisiifolia var. elatior have been increasing, it needs continuing control and conservation measures on the plant ecosystem.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.19 no.6
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• pp.41-61
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• 2016

This study was carried out to offer the basic data for establishing the management plan and constructing the ecological data by surveying and analysing the flora distributed in main survey sites(Mt. Gwangdeok, Mt. Cheonggye and Mt. Jukyeop), Hanbuk-Jeongmaek. The flora were summarized, numbering 659 taxa including 99 families, 341 genera, 575 species, 4 subspecies, 69 varieties and 11 forms. The rare plants were 16 taxa including Tylophora floribunda, Hanabusaya asiatica, Lilium cernuum, Belamcanda chinensis and so forth. The Korean endemic plants were 24 taxa including Salix koriyanagi, Aconitum pseudolaeve, Clematis trichotoma, Hosta minor and so forth. The specific plants by floristic region were 95 taxa including 32 taxa of grade I, 31 taxa of grade II, 25 taxa of grade III, 5 taxa of grade IV and 2 taxa of grade V. The naturalized plants were 38 taxa including Fallopia dumetorum, Silene armeria, Cosmos bipinnatus, Poa pratensis and so forth. The invasive alien plants were 4 taxa including Ambrosia artemisiifolia, Ambrosia trifida, Aster pilosus and Eupatorium rugosum.

• Journal of Forest and Environmental Science
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• v.31 no.2
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• pp.136-148
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• 2015

Hyangro-bong is located on the northern side of the civilian access control line and therefore has gone through natural ecological succession without human interference. Currently, it forms a distinctive natural ecosystem in which rare wild animals and plants are various. It is located in the Baekdudaegan mountain system and plays an ecologically important role as a bridge that connects the Geumgang mountain and Seorak mountain. This study investigated the flora of the eastern parts, Forest Genetic Resources Reserve Area, of Hyangro-bong. A total of 363 vascular plants that belonged to 77 families, 206 genera, 310 species, 3 subspecies, and 47 varieties were found in the study area. Rare and endangered plants identified in this study included the critically endangered Swertia wilfordii and endangered Irisuniflora var. caricina. Furthermore, 4 vulnerable species, Hanabusaya asiatica, Codonopsis pilosula, Leontopodium japonicum, and Taxus cuspidata, were found. A total of 7 families and 14 taxa including Aconitum pseudolaeve and Clematis fusca var. coreana were confirmed as endemic plants. Naturalized plants belonging to 4 families, 11 genera, and 13 species were distributed along the Hyangro-bong forest roads.

• Journal of Genetic Medicine
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• v.10 no.2
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• pp.81-87
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• 2013

Pseudohypoaldosteronism (PHA), a rare syndrome of systemic or renal mineralocorticoid resistance, is clinically characterized by hyperkalemia, metabolic acidosis, and elevated plasma aldosterone levels with either renal salt wasting or hypertension. PHA is a heterogeneous disorder both clinically and genetically and can be divided into three subgroups; PHA type 1 (PHA1), type 2 (PHA2) and type 3 (PHA3). PHA1 and PHA2 are genetic disorders, and PHA3 is a secondary disease of transient mineralocorticoid resistance mostly associated with urinary tract infections and obstructive uropathies. PHA1 includes two different forms with different severity of the disease and phenotype: a systemic type of disease with autosomal recessive inheritance (caused by mutations of the amiloride-sensitive epithelial sodium channel, ENaC) and a renal form with autosomal dominant inheritance (caused by mutations of the mineralocorticoid receptor, MR). In the kidneys, the distal nephron takes charge of the fine regulation of water absorption and ion handling under the control of aldosterone. Two major intracellular actors necessary for the action of aldosterone are the MR and the ENaC. Impairment of the intracellular aldosterone signal transduction pathway results in resistance to the action of mineralocorticoids, which leads to PHA. Herein, ion handling the distal nephron and the clinico-genetic findings of PHA are reviewed with special emphasis on PHA type 1.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.21 no.5
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• pp.61-79
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• 2018

The purpose of this study is to investigate the flora of Sohyeoncheon which is planned for ecological restoration and river maintenance from upstream to downstream, and also to collect the ecological data to cope with the change of the ecosystem of Sohyeoncheon. The numbers of vascular plants were summarized as 336 taxa including 82 families, 233 genera, 298 species, 1 subspecies, 33 varieties and 4 forms. The rare plants were 3 taxa including Aristolochia contorta Bunge, Prunus yedoensis Matsum.(planting) and Koelreuteria paniculata Laxmann. The Korean endemic plants were 4 taxa including Populus tomentiglandulosa T.B.Lee(planting), Lespedeza maritima Nakai, Forsythia koreana (Rehder) Nakai(planting) and Weigela subsessilis (Nakai) L.H.Bailey. The specific plants by floristic region were 15 taxa including 1 taxon of grade V, grade IV and grade II each, 4 taxa of grade III and 8 taxa of grade I. The naturalized plants were 60 taxa and the invasive alien plants were 3 taxa. The results of analysis by vertical structures showed that naturalized plants included 31 taxa of upstream, 53 taxa of midstream and 38 taxa of downstream. An analysis of crossing structures showed that 2 taxa of water channel, 3 taxa of low waterside, 41 taxa of high waterside and 48 taxa of bank.