• Title/Summary/Keyword: newly recorded

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Taxonomic Study of Marine Tardigrades from Korea I. Genus Batillipes (Heterotardigrada: Batillipediae) (한국산 해양 완보류의 분류학적 연구 I. Batillipes 속 (이완보 강: Batillipedidae 과))

  • 노현수;민봉희;장천영
    • Animal Systematics, Evolution and Diversity
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    • v.15 no.1
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    • pp.107-118
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    • 1999
  • Eight tardigrade species belonging to the genus Batillipes are recorded from the intertidal and shallow sublittoral sands at 29 localities in South Korea. Batillipes rotundiculus n. sp. is characteristic in having the round caudal protrusion and the blister-like lateral body protuberance between legs III and IV. Five species (B. pennaki Marcus, B. similis Schulz, B. tridentatus Pollock, B. crassipes Tchesunov and Mokievsky, and B. philippinensis Chang and Rho), newly known to Korean fauna, are briefly remarked with illustrations. A key to the eight species of the batillipedid tardigrades from Korea is prepared.

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Two Newly Recorded Estuarine Ciliates, Euplotes vannus and E. parawoodruffi (Ciliophora: Spirotrichea: Euplotida) from Korea

  • Kwon, Choon-Bong;Kang, Youn-Seung;Shin, Mann-Kyoon
    • Animal Systematics, Evolution and Diversity
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    • v.23 no.2
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    • pp.229-235
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    • 2007
  • Two euplotid ciliates collected from the estuarine littorals in Korea were identified as Euplotes vannus ($M\ddot{u}ller$, 1786) and E. parawoodruffi Song and Bradbury, 1997. These species are reported taxonomically for the first time from Korea. These two species are redescribed with illustrations, photos and biometry based on live and silver impregnated specimens. Diagnostics of each species are as follows. E. vannus: size in vivo $94-111{\times}55-75{\mu}m$ (average $103{\times}60{\mu}m)$, adoral zone of membranelles (AZM) 70% of cell length with 57-74 adoral membranelles (AM) and terminating close to hook-shape, macronucleus (Ma) C-shaped with twisted foot-like, 10 frontoventral (FVC), 5 transverse (TC), 4-7 (average 5) caudal cirri (CC), 9-10 dorsal kineties (DK), mid dorsal kinety with 15-22 cilia; silver-line system single vannus type. E. parawoodruffi: size in vivo $125-163{\times}72-100{\mu}m$, (average $141{\times}87{\mu}m$), dorsally strongly arched, body shaped reserved triangular. AZM 67-83% of cell length with 60-85 AMs, 9 FVC, 5 TC, 4 CC, 9 DK; mid-dorsal kinety with 20-30 cilia, double-eurystomus type, T-shaped Ma with equal sized right and left arms or right arm shortened slightly.

Germ Tube Formation of Ascospores of Two Terrestrial Higher Ascomycetes, Hypoxylon mammatum and H. truncatum

  • Lee, Yang-Soo;Han, Sang-Sub;Shin, Jong-Ho;Lee, Young-Mi;Song, Bong-Keun
    • Journal of the Korean Wood Science and Technology
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    • v.28 no.4
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    • pp.10-16
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    • 2000
  • Two wood decay ascomycetes fungi identified as Hypoxylon mammatum and H. truncatum were isolated from backyard of Korea Research Institute of Chemical Technology (KRICT) in Korea. Hypoxylon truncatum is newly recorded as a wood degrader in Korea. Unusual germination mechanisms of ascospores in H. mammatum and H. truncatum are described and illustrated. The differences between two species were noticed on the process of germ tube formation. In the process of germ tube formation, the fast movement to pigmented ascospores activated from their perispores was termed as spore eclosion that was only found in H. mammatum. This sophisticated recognition mechanism indicated the existence of specific eclosion and germ tube formation due to the composition of cell wall layers and their preferable host derive, based on examined two species under a genus. The observation on present study postulates different composition of wall layers of ascospore and different nutrient composition for germination.

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The Flora of Higher Fungi in Mt. Jiri Areas(II) (지리산(智異山) 일대(一帶)의 고등균류(高等菌類)(II))

  • Park, Seong-Sick;Cho, Duck-Hyun
    • The Korean Journal of Mycology
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    • v.16 no.3
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    • pp.144-150
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    • 1988
  • Higher Fungi were collected in Mt. Jiri National Park areas from May, 1986 to October, 1987. These higher fungi were identified. As a result of identification, Cystoderma granulosum(Fr.)Fayod, Melanoleuca verrucipes(Fr.)Sing., lnocybe mixtilis(Britz)Sacc., Cor­tinarius pholideus(Fr.)Fr., Lactarius uvidus var. uvidus Hesler & Smith, L. vellereus var. vellereus Hesler & Smith and Boletellus ananas(Cur.)Murr. were newly recorded in Korea.

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New Record of Two Derbesia Species (Chlorophyta) in Korea

  • An, Jae Woo;Kang, Pil Joon;Nam, Ki Wan
    • Korean Journal of Environmental Biology
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    • v.36 no.2
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    • pp.150-155
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    • 2018
  • Two siphonous green algae were collected from the eastern coast of Korea. These species share the typical features of Derbesia sporophytes, such as erect and prostrate siphonous filaments and the presence of basal septum in lateral branches. One is characterized by the combined features of a relatively small tufted sporophytic thalli arising from a rhizoidal base, subdichotomously branched filaments with a basal septum and one pyrenoid per subspherical to lenticular chloroplast. The other shows a larger sporophytic thallus, sparsely subdichotomously branched filaments with a basal septum and one pyrenoid per spherical chloroplast. In a phylogenetic tree based on rbcL sequence, the two above-mentioned Korean algae nest in the same clades as Derbesia minima and D. indica, respectively. The genetic distance between the sequences within the clades was 0.5-0.8%, which is considered to be included in the intra-specific range for the genus. These two siphonous Korean algae are identified as D. minima and D. indica, respectively, based on the morphological and molecular analyses. These species are newly recorded in the Korean marine algal flora herein.

An observational population based study on dysmenorrhea and its risk factors

  • Kotagasti, Tabassum;Rias, Nishad
    • CELLMED
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    • v.5 no.3
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    • pp.18.1-18.4
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    • 2015
  • Dysmenorrhea is the most common gynecological disorder in women of reproductive age. The prevalence of menstrual pain is relatively high and has been shown to be related to many factors like age, age at menarche, menstrual cycle regularity, parity, cigarette smoking, and dietary habits etc. This study was conducted to determine the possible link between dysmenorrhea and the factors related to it. We investigated the associated risk factors that could influence menstrual pain. This Cross Sectional Study was conducted at Dept. of OBG, NIUM, Bangalore. The study consisted of 230 women between the ages of 20 - 49 years. Included volunteers were newly married, nulliparious and parous women. The detailed reproductive history was recorded and was analyzed statistically. It was observed that there were only two factors that were influencing Dysmenorrhea namely the early age at menarche and increase parity. It was hypothesis that earlier start to reproductive life in some way decreases the sensitivity of the uterus to prostaglandin, whereas delayed menarche and postponing reproductive life increase sensitivity of the uterus to prostaglandins and cause severe menstrual pain. It is concluded that early age at menarche and high parity decrease menstrual pain.

Banana Insect Pests Species and Their Damages in the Vinyl House of Cheju Island (제주도 바나나 온실에 발생한 해충종류 및 가해양상)

  • 안성복;조왕수;임성언;김택조;이문홍;최귀문
    • Korean journal of applied entomology
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    • v.29 no.1
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    • pp.6-13
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    • 1990
  • The banana insect pest species and their damages were surveyed from 9 vinyl hoses of Cheju Island on August in 18. A total of 5 pest species wre found ; banana root weevil (BRW) Cosmopolites sordidus Germar (Curculionidae) a wireworm Melonotus sp. (Elateridae), a spider mite teranychid sp. (Tetranychidae), mulberry mealybud Pseudococcus comstocki (Kuwana)(Pseudococcidae), and common cutworm Spodoptera litura (Fabricius)(Noctuidae). Among them, the BRW which attacked the rhizome of banana plant was newly recorded from Korea. It is assumed that the weevil would be introduced from Japan, Philippine or SriLan-Ka wiht the banana seedlings imported during early 1980's.

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Classification of the Triozidae front Korea (Homoptera: Psylloidea) (한국산 참나무이과 해충의 분류 (동시아목 : 나무이 상과))

  • Kwon Yong Jung;Lee Hyeung Sik
    • Korean journal of applied entomology
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    • v.20 no.3 s.48
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    • pp.155-167
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    • 1981
  • This paper deals with the Triozidae of Korea A total of 20 species belonging to 5 genera are recognized, among them 6 species are new to science as: Bactericera (S.) distinctissima n. sp., B. (S.) miyatakei n. sp., B. (S.) yamagishii n. sp., Heterotrioza (D.) noknamui n. sp., Trioza breviata n. sp., and T. mayicola n. sp., 4 species are newly recorded from Korea as: Epitrioza yasumatsui Miyatake, 1978, Bactericesa (S.) calcarata (Schaefer, 1949), B, (S.) striola (Flor, 1861), and Trioza abdominalis Flor, 1861, and a new combination is made to: Heterptrioza (D.) chilgia (Park et Lee, 1980) n. comb. Keys are provided to the genera and species respectively Some illustartions of head, forewing, male and female genitalic characters are given.

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Four Newly Recorded Amanita Species in Korea: Amanita sect. Amanita and sect. Vaginatae

  • Kim, Chang Sun;Jo, Jong Won;Kwag, Young-Nam;Oh, Junsang;Shrestha, Bhushan;Sung, Gi-Ho;Han, Sang-Kuk
    • Mycobiology
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    • v.41 no.3
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    • pp.131-138
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    • 2013
  • We collected nearly 70 specimens of Amanita species during a diversity study of Korean mushrooms conducted in 2012. In this study, we primarily investigated 23 Amanita specimens belonging to sections Amanita and Vaginatae. Based on sequence data of the internal transcribed spacers and partial large subunit of ribosomal RNA and morphological characteristics, we identified the following 15 phylogenetic species: A. alboflavescens, A. ceciliae, A. farinosa, A. fulva, A. griseofolia, A. ibotengutake, A. melleiceps, A. orientifulva, A. pantherina, A. rubrovolvata, A. sinensis, A. subglobosa, A. vaginata, A. cf. vaginata f. alba, and an undescribed Amanita species. In this study, four of the identified Amanita species (A. griseofolia, A. ibotengutake, A. orientifulva, and A. sinensis) were reported for the first time in Korea.

Brief description of 18 newly recorded ciliate species from soil and inland waters(Protozoa, Ciliophora) in South Korea

  • Kim, Ji Hye;Omar, Atef;Jung, Jae-Ho
    • Journal of Species Research
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    • v.9 no.3
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    • pp.251-268
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    • 2020
  • Ciliates are a speciose protozoan group and their diversity is still not well investigated in Korea. From our field surveys, 18 unrecorded ciliate species were collected from a total of nine localities in Korea. The field surveys were conducted in 2018 and 2019, and the unrecorded ciliates were found from terrestrial (moss and soil samples) and inland water (river and lagoon samples) habitats. The morphology of these ciliates was studied using the observation of living and silver impregnated (protargol) specimens. The present species belong to five classes as follows: 1) class Spirotrichea - Gonostomum kuehnelti, Quadristicha setigera, Lamtostyla decorata, L. islandica, L. longa, Anteholosticha brachysticha, Pseudobirojimia muscorum; 2) class Litostomatea - Apocoriplites lajacola, Epispathidium amphoriforme, Protospathidium muscicola, Phialinides australis, Paraenchelys wenzeli, Rimaleptus similis; 3) class Nassophorea - Drepanomonas revoluta; 4) class Colpodea - Bryometopus triquetrus; and 5) class Oligohymenophorea - Cyclidium glaucoma, Epistylis pygmaeum, Pseudovorticella vestita. The globular macronuclear nodules of P. vestita were observed for the first time in the Korean population.