• 제목/요약/키워드: new species from Korea

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Phytophthora Species, New Threats to the Plant Health in Korea

  • Hyun, Ik-Hwa;Choi, Woobong
    • The Plant Pathology Journal
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    • 제30권4호
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    • pp.331-342
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    • 2014
  • Given the lack of a resistant genetic pool in host plants, the introduction of exotic invasive pathogens can result in epidemics that affect a specific ecosystem and economy. Plant quarantine, which is designed to protect endemic plant resources, is a highly invaluable safeguard that should keep biosecurity with increasing international trade and global transportation. A total of 34 species of plant pathogens including Phytophthora infestans were documented as introduced from other countries into Korea from 1900 to 2010. The genus Phytophthora, classified in oomycetes, includes more than 120 species that are mostly recognized worldwide as highly invasive plant pathogens. After 2000, over 50 new species of Phytophthora were identified internationally as plant pathogens occurring in crops and forest trees. In Korea, Phytophthora is also one of the most serious plant pathogens. To date, 22 species (about one-fifth of known species) of the genus have been identified and reported as plant pathogens in the country. The likelihood of new exotic Phytophthora species being introduced into Korea continues to increase, thus necessitating intensive plant quarantine inspections. As new potential threats to plant health in Korea, six Phytophthora species, namely, P. alni, P. inundata, P. kernoviae, P. pinifolia, P. quercina, and P. ramorum, are discussed in this review with focus on history, disease, biology, management, and plant quarantine issues.

Two New Species of Oribatid Mites(Acari: Oribatida) from Korea

  • Choi, Seong-Sik;Bayartogtokh, Badamdorj;Aoki, Jun-Ichi
    • Animal cells and systems
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    • 제5권1호
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    • pp.17-23
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    • 2001
  • Two new species of oribatid mites, Dicastribates tenuisetosus sp. nov, and Liacarus unjangensis sp. nov. are described from Korea. Dicastribates tenuisetosus sp. nov. is easily distinguishable from a single known species, D. heterotrichus (Mahunka, 1984) from Paraguay by the presence of 14 pairs of distallv attenuate notogastral setae, the smooth rostral and lamellar setae, the relatively short and distally attenuating interlamellar setae, the relatively short sensilli with distinctly clavated head, and presence of two and six setae on epimeral region III and genital plate. Liacarus unjangensis sp. nov. can be easily distinguished from most other known species by the very wide lamellae which cover dorsally whole prodorsum, the presence of equal sized inner and outer teeth of lamellar cusps and the minute rostral, lamellar and interlamellar setae.

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New Species and New Record of Genus Chrysothrix (Chrysotrichaceae, Arthoniales) from South Korea and Chile

  • Liu, Dong;Oh, Soon-Ok;Park, Jung-Shin;Hur, Jae-Seoun
    • Mycobiology
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    • 제46권3호
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    • pp.185-191
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    • 2018
  • The genus Chrysothrix is very common around the world and easy to be recognized by its bright yellowish granular thallus. In this study, investigations of lichen mycota in South Korea and Chile from 2010 to 2017 have been done, and some Chrysothrix specimens were collected, based on the morphological and chemical study on these specimens, five species were confirmed in this study, including one new species from Chile, Chrysothrix chilensis D. Liu & J.-S Hur, and one new record from South Korea, C. xanthina (Vain.) Kalb. Meanwhile, detail description and illustration for each species were present in this study.

Two Harpacticoid Species of Genera Nitokra and Ameira (Harpacticoida: Ameiridae) from Brackish Waters in Korea

  • Chang, Cheon-Young
    • Animal cells and systems
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    • 제11권2호
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    • pp.247-253
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    • 2007
  • A new species of Nitokra and Ameira parvula (Claus) belonging to the family Ameiridae are recorded from brackish waters in South Korea. Nitokra koreanus n. sp. most resembles N. spinipes and N. pietschmanni, however, it is characteristic in having the character combination of ellipsoidal P5 exopod and very short P1 enp 1. Ameira parvula is reported for the first time from the Northwestern Pacific. Description of the new species and the taxonomic accounts of both species are presented.

One new Sclerochilus(Praesclerochilus) Sars(Ostracoda) species from Korea

  • Le, Van Anh Thi;Yoo, Hyunsu;Karanovic, Ivana
    • Journal of Species Research
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    • 제10권3호
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    • pp.255-261
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    • 2021
  • Sclerochilus Sars, 1866 is the most diverse genus of the family Bythocytheridae, one of the longest surviving groups of extant ostracods, and the oldest representative of the superfamily Cytheroidea. It has a worldwide distribution at various marine depths, and it includes three subgenera: Fascichilus Schornikov, 1981; Praesclerochilus Schornikov, 1981; and Sclerochilus Sars, 1866. We describe Sclerochilus(Praesclerochilus) jejuensis sp. nov. from Jeju Island, South Korea, raising the number of known Praesclerochilus species to 13. Although most species belonging to this subgenus have very similar carapace shape, the new species differs morphologically from its most similar congeners, S. (P.) mukaishimensis Okubo, 1977; S. (P.) pruniformis Schornikov, 1981; and S. (P.) ochotensis Schornikov, 1981, by the large ventral process on the hemipenis. So far, 29 Sclerochilus species have been reported from South Korea, only one of which was named, but for which no descriptive information was provided. Therefore, this is the first taxonomic report of a Sclerochilus species from South Korea.

Six new species of Copepoda (Clausiidae, Pseudanthessiidae, Polyankyliidae) associated with polychaetes from Korea

  • Kim, Il-Hoi
    • Journal of Species Research
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    • 제3권2호
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    • pp.95-122
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    • 2014
  • Six new species of copepods associated with polychaetes are described from Korea. Included are Indoclausia bipartita n. sp., Clausia parva n. sp., and Maxilliclausia propria n. gen. n. sp. in the Clausiidae; Pseudanthessius excertus n. sp. in the Pseudanthessiidae; and Polyankylis ovilaxa n. sp. and Sewelloya plana n. gen. n. sp. in the Polyankyliidae. The new genus Maxilliclausia has a peculiar maxilla in which the distal segment forms a sucking disk, a non-prehensile antenna, vestigial legs 3 and 5, and lacks a maxilliped and leg 4. The two new species of the Polyankyllidae are discovered as external associates of terebellid polychaetes. The new genus Sewelloya has a simple female maxilliped bearing only two small setae on its terminal segment, an uniramous leg 4 bearing 1-segmented exopod, and a reduced leg 5 represented by three setae. The genera Terebelliphilus Kim, 2001 which was originally placed in the Sabelliphilidae, and Octophiophora Stock, 1988 and Stockia Sebastian and Pillai, 1974, both of the latters with uncertain familial positions, are transferred to the Polyankyliidae. A key to five genera of the Polyankyliidae are provided.

Korean Species of the Genus Taeniogonalos (Hymenoptera: Trigonalidae: Trigonalinae) with a New Record

  • Hye-Rin Lee;Danbi Yun;Tae-Ho An;Jae-Hyeon Lee;Deokseo Ku;Bong-Kyu Byun
    • Animal Systematics, Evolution and Diversity
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    • 제40권1호
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    • pp.88-93
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    • 2024
  • In this study, we conduct a review of the genus Taeniogonalos Schulz, 1906, which belongs to the subfamily Trigonalinae (Hymenoptera: Trigonalidae) from Korea. The genus Taeniogonalos Schulz is recognized as a relatively small genus. Taeniogonalos comprises 53 described species worldwide, including nine species identified in the Eastern Palaearctic region. A total of four species have been recognized from Korea. This paper enumerates the known species in Korea, including the new record. We provide the diagnosis and photographs for the newly recorded species. Additionally, we present a key to the Korean species of Taeniogonalos Schulz, 1906.

First report of Harmacloninae (Lepidoptera, Tineidae) in Korea

  • Lee, Dong-June;Ko, Jae-Ho;Lee, Tak-Gi;Cha, Yeong-Bin;Bae, Yang-Seop
    • Journal of Species Research
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    • 제9권2호
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    • pp.162-166
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    • 2020
  • Previously, 33 species, 18 genera, eight subfamilies of the family Tineidae were reported in Korea. In this study detail a new record to Korea, species, Micrerethista denticulata Davis, 1998 in the subfamily Harmacloninae in Korea. This species is the most widespread species of the genus in southern Asia, ranging from Thailand through Indonesia to southern Japan but absent from New Guinea. Globally, Harmacloninae Davis, 1998 includes 22 species of two genera. The subfamily can be distinguished from the other Tineidae subfamilies by an additional wing locking mechanism, loss of pretarsal arolium and pseudempodial seta, tympanic organ in abdominal sternum II, enlargement of sternal apophyses, and aedeagus with basal midventral keel in male genitalia. The morphological characteristics of this subfamily and species are described, and illustrations of examined species and the key characters for each subfamilies of the family Tineidae from Korea are provided.

한국 남해산 태충류의 계통분류학적 연구 II. 입이끼벌레과 (Systematic Study on Bryozoans from the South Sea in Korea II. Smittinidae)

  • 서지은
    • Animal Systematics, Evolution and Diversity
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    • 제9권1호
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    • pp.35-50
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    • 1993
  • 한국 남해산 태충류의 계통분류학적 연구의 일환으로 1969년부터 1991년까지 남해 연안과 여러 도서지방의 15개 지역으로부터 채집된 입이끼벌레류를 동정한 결과 Parasmittina contraria sp. nov. 과 Smittiina malleolus, Parasmittina elongata, Parasmittina crosslan야, Smittoidea reticulata의 4 한국미기록종을 포함한 11종이 밝혀졌다. 이로서 한국산 입이끼 벌레류는 모두 4속 21종이 되며, 이 중에서 19종이 남해에서 서식하고 있다. 본 연구에서 밝혀진 11종의 한국산 입이끼벌레류의 검색표를 만들었으며 신종과 한국미기록종에 대해서는 기재를 하였고 도판을 작성하였다.

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