• Title/Summary/Keyword: wild species

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Unrecorded mycoparasitic fungus Sepedonium laevigatum isolated from wild mushrooms in South Korea (야생버섯에서 분리한 미기록종 버섯기생균 Sepedonium laevigatum 보고)

  • Seung-Yoon, Oh
    • Journal of Mushroom
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    • v.20 no.4
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    • pp.249-253
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    • 2022
  • Fungi that infect mushrooms and cause diseases are called mycoparasitic fungi. Understanding the diversity of mycoparasitic fungi in wild mushrooms is important for the mushroom industry, as they can parasitize cultivated mushrooms. However, few studies have been conducted on the diversity of mycoparasitic fungi in wild mushrooms in South Korea. Upon surveying mushroom flora, we found a mycoparasitic fungus and analyzed its strain using molecular phylogeny and morphological examination. The strain was identified as Sepedonium laevigatum, which is an unrecorded species in South Korea. In this study, we described the cultural and microscopic characteristics of this strain of fungus.

Isolation and characterization of four unrecorded wild yeasts from the soils of Republic of Korea in winter

  • Yuna Park;Soohyun Maeng;Sathiyaraj Srinivasan
    • Journal of Species Research
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    • v.12 no.3
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    • pp.197-202
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    • 2023
  • The purpose of this study was to isolate and identify wild yeasts from the soil collected in Gwangju and Pocheon City, Gyeonggi Province, Republic of Korea. Among 10 strains, six strains were already reported, but four strains were unrecorded in Republic of Korea. To identify wild yeast strains, pairwise sequence comparisons of the D1/D2 region of the 26S rRNA gene sequence were performed using Basic Local Alignment Search Tool (BLAST). The cell morphologies were observed by phase contrast microscope and assimilation tests were carried out using API 20C AUX kit. The 10 strains were assigned to the phyla Basidiomycota (8 strains) and Ascomycota (2strains). The unrecorded four yeast strains, NH33, NH19, NH20, and YP416, belong to the phylum Basidiomycota and the genera Buckleyzyma, Leucosporidium, Holtermanniales, and Mrakia, respectively. All strains had oval-shaped and polar budding cells. In this research, the morphological and biochemical properties of four unreported yeast species were characterized intensively, which were not officially reported in Korea.

User′s Effects on Avifauna in Sokri Mountain National Park (속리산 국립공원의 이용객이 야생조류 서식에 미치는 영향)

  • 이우신;이준우;김준선
    • Korean Journal of Environment and Ecology
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    • v.4 no.1
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    • pp.51-62
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    • 1990
  • This study was to investigate the user's effects on the avifauna in Sokri Mountain National Park. The survey was carried over 4 districts which were divided with main trail(valley, ridge), subtrail(ridge), un-used trail (valley) by line transect method from December 1989 to October 1990. The observed birds were 36 species and 570 individuals, these consist of 23 species for residents. 7 species for summer visitor. 2 species for winter visitor, 4 species for passage migrant. The average density of birds was 2.35 ea/ha., and main dominant species were Parus major minor, Porus palustris hellmayri, Parus varius varius and Sitta europaea amurensis in order. The observed frequency of wild birds was 3.4 times/km in average. No. of species, species diversity and observed frequency of summer and autumn were lower than winter and spring in 4 survey routes. Therefore, from now, in Sokri Mountain National Park manegement, the enjoyment oriented activities will be regulated and control of trail use on main trail are necessary during breeding periods of wild birds protection, especially in summer.

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The Flora of Mt. Bakdal in Chungcheongbuk-do, Korea (충청북도 박달산 일대의 식물상)

  • Yoo, Ju;Jin, Yeon-Hee;Jang, Hye-Won;Cho, Heung-Won;Lee, Dong-Woo;Yoon, Hee-Bin;Lee, Chul-Hee
    • Korean Journal of Plant Resources
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    • v.17 no.2
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    • pp.169-182
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    • 2004
  • The purpose of this study is carried out accurately to grasp the vascular plants in Mt. Bakdal (825 m of sea level), Goesan-gun, Chungcheongbuk-do. In the results of survey from October, 2000 to August, 2001, the vascular plant species in Mt. Bakdal were summarized as 458 taxa; 91 families, 275 genera, 391 species, 62 varieties and 5 forms. The rare plants designated by Korea Forestry Service were six species; Lilium distichum, Iris uniflora var. carisina, Hylomecon hylomeconoides, Viola albida, Scopolia japonicus and Scrophularia koraiensis. And the endemic plants were seventeen species; Melandryum seoulense, Aconitum pseudo-laeve var. erectum, Hylomecon hylomeconoides, Spiraea prunifolia for. simpliciflora, Rubus hongnoensis, Gleditsia japonica var. koraiensis, Lespedeza ${\times}$ tomentella, Vicia venosa var. cuspidata, Vicia venosissima, Tilia taquetii, Ajuga spectabilis, Paulownia coreana, Scrophularia koraiensis, Weigela subsessilis, Lonicera subsessilis, Cirsium setidens and Saussurea seoulensis. The sixteen species were recorded in the surveyed sites as the naturalized plants; Rumex acetocella, Rumex crispus, Fallopia dumetora, Chenopodium glaucum, Amaranthus retroflexus, Robinia pseudo-acacia, Amorpha fruticosa, Trifolium repens, Abutilon avicennae, Hibiscus trionum, Oenothera odorata, Oenothera lamarckiana, Erigeron annuus, Erigeron canadensis, Bidens frondosa and Carduus crispus.

Present Status of Non-Native Amphibians and Reptiles Traded in Korean Online Pet Shop (한국 온라인 펫샵에서 거래되는 외래 양서파충류 현황)

  • Koo, Kyo Soung;Park, Hye Rin;Choi, Jae Hyeok;Sung, Ha Cheol
    • Korean Journal of Environment and Ecology
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    • v.34 no.2
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    • pp.106-114
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    • 2020
  • The development of transportation and the expansion of the pet market has become the main causes of the increase in the cross-border migration of non-native species. Moreover, recent sales over the Internet were a factor that has promoted pet trades. While the import of non-native species has been steadily increasing in the Republic of Korea, it is not clear how these imported species are traded and how large the trade is. Considering that most of the non-native species found in the wild are the results of release by humans understanding the present situation of pet trades can identify potential non-native species that can enter the wild. This study surveyed the number of species, frequency, and prices of non-native amphibians and reptiles sold in 25 online pet shops from January 22 to February 10, 2019. The results of the survey showed that a total of 677 species of non-native amphibians and reptiles were sold, and the Squamata group accounted for the largest part of them at 65.4% (443 species). The number of non-native amphibians and reptiles sold in online pet shops in 2019 was 2.1 times larger than the 325 species officially imported in 2015. The non-native amphibians and reptiles sold in most pet shops were Litoria caerulea (21 shops) and Correlophus ciliatus (24 shops). The lowest price for non-native amphibians and reptiles was 3,000 won, and the highest price was 100 million won for Rhacodactylus leachianus of Squamata. Among the non-native amphibians and reptiles sold in online pet shops, 11 species were found in the wild and were sold at relatively low prices. We confirmed that Mauremys reevesii, an endangered species class II and natural monument no. 453, and American bullfrogs (albino), an ecosystem disturbing species, were being sold in online pet shops. Moreover, 21.6% of the 677 non-native amphibians and reptiles sold in online pet shops were species designated as CITES. The results of this study can be the important reference data for understanding the status of non-native amphibians and reptiles that are imported and sold in Korea and evaluating and predicting the potential for them to enter the wild.

An osteological study of animal bones excavated from Jeju Jongdali shell-mount (제주 종달리패총 유적에서 출토된 동물 유물의 해부학적 연구)

  • Shin, Taekyun
    • Korean Journal of Veterinary Research
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    • v.41 no.3
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    • pp.275-279
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    • 2001
  • The classification of bony pieces which were excavated from Jongdali archaeological site in Jeju was studied. The total number of bone remains were 81 pieces, in which 31 pieces were classified into animal bones. The animal species consisted of Cervus spp., Sus scrofa, Bos taurus and Equus caballus. This finding suggests that the major fauna in this peroid(B.C. 100 - A.D. 100) is wild boar, deer, horse and cattle.

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The Study on Chromosome Number of Morus bombycis Koidz., Morus Mongolica C.K.Schn.and Morus tiliaefolia Makino Growing Wild in the Korea Peninsula (한반도에 자생하는 산뽕나무(Morus bombycis Koidz.), 몽고뽕나무(Morus mongolica C.K. Schn.) 및 돌뽕나무(Morus tiliaefolia Makino)의 염색체수)

  • 박광준
    • Journal of Sericultural and Entomological Science
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    • v.43 no.1
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    • pp.53-54
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    • 2001
  • The chromosome number of Morus bombycis Koidz. and Morus monogolica C.K.Schn. growing wild in the Korea Peninsula is diploid (2n=28) and that of Morus tiliaefolia Makino is hecxaploid (2n=84). The somatic cell division of each species is nomal.

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Quantification of Momilactones A and B in Rice Straw

  • Lee, Choon-Woo;Koichi Yoneyama;Yasutomo Takeuchi;Ryu, Su-Noh
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.47 no.4
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    • pp.283-285
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    • 2002
  • Momilactones A and B, the major phytotoxins and phytoalexins in rice plants, were quantified by a HPLC-APCI-MS-MS (APCI-MS-MS) system under multiple reaction monitoring conditions. Since MA and MB were found to be easily extracted with water, these phytotoxic compounds may affect germination and growth of other plant species when the rice straws were left in the fields.

A Basic Study on Development of Medical Wild Plant Resources in Mt. Wol-chul (월출산 한약자원식물의 분포 및 분류체계에 관한 기초적 연구)

  • 윤의수
    • Korean Journal of Plant Resources
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    • v.3 no.2
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    • pp.91-105
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    • 1990
  • The plants medicinal resources of Mt. Wol-chul were investigated 8 times from July, 1988 to July 1990. In orther to analyze the vegetation of Wol-chulmountain area, medical wild plants structure and distribution. Medical wildplants of Wol-chul mourltain consisted of 11'0 familis, 338 species in all. Theresources of important herb drugs were Polypodiaceae, Graminea, Liliaceae ,Polygonaceae, Ranunculaceae, Brassicaceae, Rosaceae, Apiaceae, Labiatae, Com-positae .

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Phylogenetic relationship of the wild silkworm, Bombyx mandarina, inferred from aninternal transcribed spacer (ITS) of rDNA

  • Kim, Kyung-ah;Nho, Si-kab
    • Proceedings of the Korean Society of Sericultural Science Conference
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    • 2003.04a
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    • pp.42-42
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    • 2003
  • The wild silkworm, Bombyx mandarina, was believed the only ancestor of B. mori, inhabits the limited area of Eastern Asia including China, Korea and Japan. However, the geographic dimorphism of B. mandarina was reported with chromosome number and arylphorin gene. In connection with those dimorphism, we studied the genetic differences of ITS-2 region in rDNA purposing the differentiation and geographic variation within the species of B. mandarina. (omitted)

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