• Title/Summary/Keyword: taxonomic study

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Notes on the Lichen Genus Leptogium (Collemataceae, Ascomycota) in South Korea

  • Jayalal, Udeni;Jang, Seol Hwa;Yu, Nan Hee;Oh, Soon Ok;Hur, Jae-Seoun
    • Mycobiology
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    • v.42 no.2
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    • pp.120-131
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    • 2014
  • Leptogium (Ach.) Gray is distributed throughout South Korea; however, for nearly two decades no detailed taxonomic or revisionary research on this lichen genus has been conducted. This study examined the specimens deposited in the lichen herbarium at the Korean Lichen Research Institute, and samples were identified using descriptions recently published in the scientific literature. In this revisionary study, a total of fourteen species of Leptogium were documented, including new records of Leptogium delavayi Hue, Leptogium denticulatum Nyl., and Leptogium trichophoroides P. M. J${\o}$rg. & A. K. Wallace. Detailed descriptions of each species are given, including their morphological, anatomical, and chemical characteristics. A key to all Leptogium species known to occur in South Korea is also presented.

Four Cyclopoid Species (Copepoda: Cyclopidae) from Limestone Caves and Lava Tube in South Korea

  • Lee, Ji-Min;Kim, Won-Rok;Choi, Yong-Gun;Chang, Cheon-Young
    • Animal Systematics, Evolution and Diversity
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    • v.23 no.2
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    • pp.155-167
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    • 2007
  • As a result of the faunistic study on the subterranean cyclopoid copepods, four species of three genera in the family Cyclopidae are reported from nine limestone caves and a lava tube in South Korea: Megacyclops magnus (Marsh, 1920), Acanthocyclops orientalis Borutzky, 1966, A, robustus (Sars, 1863) and Diacyclops suoensis Ito, 1956, all of them new to Korean fauna. This paper deals with the taxonomic accounts and illustrations of the four species with the redescription of A. orientalis. This is the first taxonomic study on the cave-dwelling cyclopoid copepods from Korea.

Taxonomic Study of Peltigera (Peltigeraceae, Ascomycota) in Korea

  • Wei, Xin Li;Wang, Xin Yu;Koh, Young-Jin;Hur, Jae-Seoun
    • Mycobiology
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    • v.37 no.3
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    • pp.189-196
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    • 2009
  • A taxonomic study of Peltigera in South Korea was performed. The phylogenetic analysis based on nr DNA internal transcribed spacer sequences suggests that Peltigera is a well-supported monophyletic group. Important characteristics are the phycobiont type of thallus and the vein type at the lower cortex (wide and flat, or narrow and ridged). The vertical or horizontal arrangement of the apothecia is also important in distinguishing species in this genus. Eleven species of Peltigera were revealed and confirmed, which included one new record, P. elisabethae. A description of each species is presented with morphological, anatomic, and chemical characteristics, and comparisons between similar species are made. A key to the species is also presented.

The Importance of Using Correct Names in Taxonomy - A Case Study of "The Genera of Vascular Plants of Korea" and Other Recent Published Literature in Korea

  • Chang, Kae Sun;Chang, Chin-Sung
    • Journal of Korean Society of Forest Science
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    • v.98 no.5
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    • pp.524-530
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    • 2009
  • We scrutinized the Korean taxonomic literature, with special focus on some nomenclatural points and four different cases were listed categorically. Several naked names (nomen nudum), invalidly published names, typographical and orthographical errors, incorrect use of hybrid names and authorship, and errors in the citation of the bibliographic references have appeared in newly published literature in Korea, due to misapplications of ICBN (International Code of Botanical Nomenclature). Although literature review and synonyms are imperative and essential elements of taxonomic study, many author citations tend to be copied from one publication to another without any confirmation of the original source. It is strongly recommended that scientists who have previously published careless work should be more careful, and they should be instructed to read original descriptions and to learn current practices in the code.

Korean Name of Cephalopods in Korea (우리나라에 출현하는 두족류 이름)

  • Kim, Yeong-Hye;Chun, Young-Yull
    • The Korean Journal of Malacology
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    • v.26 no.2
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    • pp.171-175
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    • 2010
  • Korean cephalopods only recorded with Korean name in the literature were reviewed to solve confusions in use of their Korean name for taxonomic studies of cephalopods in Korea, and to prepare a basic check list for standardizing total cephaolopods fauna of Korea in the future. A total 38 cephalopods species with Korean names were listed in this study; 14 species in order Sepioidea, 17 species in Teuthoidea, 7 species in Octopoda. The etymology and some problems of Korean names of cephalopods occurring in Korea, and the useable rules for naming cephalopods with Korean words are recommended and discussed.

Taxonomic Study on Spider Mites (Tetranychidae ; Acarina ) of Korea (한국산 응애과 (거미속 : 진드기목) 의 분류학적 연구)

  • 이원구;이병훈;김영진
    • Animal Systematics, Evolution and Diversity
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    • v.2 no.2
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    • pp.13-26
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    • 1986
  • A Taxonomic investigation was carried out on the following seven spider mites (Family tetranychidae) by comparison of morphological characters, cuticular lobes and karyotypes. Materials used in this study were collected and reared at Jeonju, Jorea during October 1985-June 1986. Subfamily Bryobiinae ; Bryobia praetiosa Koch, 1836 ; Petrobia latens (Mller, 1776). Subfamily Tetranychinae ; Panonychus citri (McGregor , 1919) ; P.ulmi (Koch, 1836): T vienensis tranychus Zacher , 1920 ; T.urticae (Koch, 1836) ; T. kanzawai Kishida , 1927. Of them two species, P. latens and T. kanzawai , are newly recorded from Korea.

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Fundamental Morphological Study of 16 Genera of Chironomid Larvae in Korea

  • Lee, Dong Ju;Park, Jae-won;Kwak, Ihn-Sil
    • Korean Journal of Ecology and Environment
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    • v.54 no.2
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    • pp.125-129
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    • 2021
  • Chironomids are a large group of invertebrates that live in various aquatic habitats. The distribution range of these invertebrates has become varied due to anthropogenic impacts; as such, their distribution can be used as an indicator of environmental health. Adult chironomids are well known in South Korea; however, the larvae have rarely been studied due to difficulties associated with morphological classification. To address this lack of information, we collected larvae from four important rivers in South Korea and summarized their taxonomic morphological characteristics. The antennae, mandible, and mentum were used for larval taxonomic characterization. In this study, we describe the basic morphological features and key pictorial features of 20 species of chironomids, representing 16 genera.

An Annotated Checklist of Millipedes (Myriapoda: Diplopoda) Inhabiting the Korean Peninsula

  • Gyeongmin Kim;Ameenat Abdulqadri Adebimpe;Anh D Nguyen;Zoltan Korsos;Ui Wook Hwang
    • Animal Systematics, Evolution and Diversity
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    • v.39 no.4
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    • pp.133-154
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    • 2023
  • The Korean Peninsula is geographically located in the centre of Far Eastern Asia and has complex and various climate conditions following longitudinal topology, which would expect to be result in high diversity and endemism of millipede. In this study, the millipede fauna of the Korean Peninsula consists of 68 species plus 5 subspecies from 29 genera, 15 families and 7 orders. Of these species/subspecies, 29 and 12 are endemic in South Korea and North Korea, respectively; nine are recorded in both South Korea and North Korea. Each species has been provided comprehensive information including an original report, taxonomic changes, distribution, and remarks if necessary. Moreover, unsolved taxonomic uncertainty of some species included in this checklist should be investigated through further study.

A newly recorded brittle star, Amphiophiura megapoma (Ophiuroidea: Ophiurida: Ophiopyrgidae), from the mesophotic zone in the East Sea, Korea

  • Taekjun Lee
    • Korean Journal of Environmental Biology
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    • v.41 no.3
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    • pp.291-297
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    • 2023
  • This study introduces a newly discovered brittle star, Amphiophiura megapoma, from the mesophotic zone in the East Sea, Korea. It is the second species belonging to the genus Amphiophiura (which includes 57 species) to be recorded in Korean waters after A. sculpta. The specimen was discovered during a September 2022 survey, by SCUBA diving in the upper mesophotic zone of the East Sea, Korea. This study presents the morphological characteristics of A. megapoma, highlighting its differences from the related species within a comprehensive taxonomic description. It provides high-resolution images of A. megapoma and a taxonomic key for Amphiophiura species in Korea.

The Phylogenetic Relationship of Several Oscillatorian Cyanobacteria, Forming Blooms at Daecheong Reservoirs, Based on Partial 16S rRNA Gene Sequences

  • Lee, Wook-Jae;Bae, Kyung-Sook
    • Journal of Microbiology and Biotechnology
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    • v.11 no.3
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    • pp.504-507
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    • 2001
  • The partial 16S gene sequences of six filamentous cyanobacterial strains, Oscillatoria lmosa KCTC AG10168, Oscillatoria princeps KCTC AG10153, Oscillatoria sp. KCTC AG 10184, Phormidium tenue KCTC AG10158, Phormidium parchydematicum KCTC AG10164, and Lyngbya hieronymusii KCTC AG10199, which were isolated in the late summer at Daecheong Reservoirs, were determined and assigned their phylogenetic and taxonomic position among taxa of order Ocillatoriales whose partial 16S rRNA gene sequences aligned in this suty, were very heterogeneously clustered with other taxa. The two strains, Oscillatoria limosa KCTC AG10168 and O. princeps KCTC AG10153, formed a cluster with O. sancta PCC7515, which supported 64% of the bootstrap trees with high similarity (19-96.15%). Strain Oscillatoria sp. KCTC AG10184, that was known to produce a nasty substance, was closely related to the toxic Oscillatoria group. The study on morphological variation in various environments and toxin production will confirm the taxonomic status of these species. Phormidium tenus KCTC AG10158 and Phormidium parchydematicum KCTC AG10164 made a cluster with other oscillatorian species of Phormidium, Oscillatoria, and Leptolynbya, which supproted 100% of the bootstrap trees with a very high sequence smilarity (96.8-99.8%) in thsi study. The sequence analysis in this study also supported that taxa of oscillatoriales are not monophyletic. Some of the fractures, such as the presence or absence of sheath and cell shape, which were used to define them, would be inadequate and should be reconfirmed. We suggest that sequences of partial 16S rRNA gene fragments aligned in this study should be more useful than morphological features in the identification and reconfirmation of the taxonomic status of these oscillactorian cyanobacteria.

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