• Title/Summary/Keyword: Dorylaimida

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Systematic Study of Dorylaimida from Korea. 5. List of Recorded Species and Redescription of Seven Species of Dorylaimida from Korea (한국산 창선충목의 분류. 5. 한국산 창선충목의 미기록 7종 재기재 및 기록종 목록)

  • Young Eoun Choi
    • Korean journal of applied entomology
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    • v.38 no.3
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    • pp.177-199
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    • 1999
  • Seven known species of Dorylaimida from Korea were newly reported; redescribed and illustrated viz., Dorylaimus helveticus Steiner, 1919, Opisthodorylaimus cavalcantii(Lordello, 1955) Carbonel and Coomans, 1985, Thonus circulifer(T. & S. 1936) Thorne, 1974, Paralongidrus strelitziae (Heyns, 1966) Aboul-Eid, 1970, Oxydirus oxycephaloides (de Man, 1921) Thorne, 1939, Dorylaimoides (Digidorylaimoides) leptus Husain and Khan, 1968 andD.(D.) micoletzki(de Man, 1921) Thorne and Swanger, 1936. The species of Dorylaimida from Korea were arranged systematically.

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Systematic Study of Dorylaimida from Korea 1.Three Unrecorded Species of Longidorinae(Dorylaimida:Longidoroidea)from Korea (한국산 창선충목의 계통분류학적 연구 1.한국산 바늘선충아과의 3 말기록종에 관하여)

  • 최영열;단옥새
    • Korean journal of applied entomology
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    • v.37 no.1
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    • pp.9-17
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    • 1998
  • Hitherto only one species of Longidorinae, Longidorus sylphus was recorded from Korea by Choi and Moon (1988). Three unrecorded species of Longidorinae, L, litchii, L. himalayensis and Paralongidorus sali were found in Korea for the first time during the systematic study of Dorylaimida from Korea. They are described and illustrated. Some differences are discussed.

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The Nematode Genus Xiphinema(Dorylaimida : Longidoridae) From Korea (한국산 Xiphinema 속선충(Dorylaimida : Longidoridae)의 분류)

  • Lee Young-Bae;Han Sang-Chan
    • Korean journal of applied entomology
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    • v.15 no.1 s.26
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    • pp.17-21
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    • 1976
  • Four species of the genus Xiphinema have been identified, three of which are new to Korea. X. radicicola which is distributed geographically from the north (Suweon) to the south (Jeiu) of the country is found from soil around roots of apple and elm tree. X. bakeri is a confirmed species to the specimens collected from mulberry grove at Suweon. X. pini was collected from soil around roots of broad leaf lilac and maple trees at Mt. Kyeryongsan. Some notes of Korean populations of X. americanum are given.

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Descriptions of Four New Species of Actinolaimoidea (Dorylaimida:Nematoda) from Korea (한국산 Actinolaimoidea상과의 (Dorylaimida:Nematoda) 4신종 기재)

  • ;Zakaullah Khan
    • The Korean Journal of Soil Zoology
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    • v.5 no.2
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    • pp.85-96
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    • 2000
  • Four new species of predatory nematodes belonging to the Actinolaimoidea, Dorylaimida are described. Neoactinolaimus gosungensis n. sp. is 2.2-2.4 mm long, b = 4.3-4.9; c = 10.7-11.2; species 60-62 ${\mu}{\textrm}{m}$ long and is distinguishable by low lip region, asymmetrical odontostyle and its wider lumen. Egtitus arcuatus n. sp. is 1.5-1.8 mm long, b = 3.6-4.2; c = 14-15 and is characterized by having dorsally arcuate odontostyle and presence of cardiac glands at base of oesophagus. Paractinolaimus tuberculantus n. sp. is 1.9-2.5 mm long, b = 3.3-4.0, c = 7.2-8.8, spicules 66-69 ${\mu}{\textrm}{m}$ long and is unique in having coiled body posture and a tubercle at the base of oesophagus. Carcharolaimus koriensis n. sp. is 1.7-1.9 mm long, b = 3.6-4.5, c = 65-76 and is characterized by having very thick body cuticle and larger odontostyle aperture.

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Description of Four New and Two Unknown Species of Soil Nematodes(Nematoda: Dorylaimida) from Korea (한국산 창선충(Nematoda: Dorylaimida)의 4기종 및 2미기록종 기재)

  • ;Zakaullah Khan
    • Korean journal of applied entomology
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    • v.40 no.4
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    • pp.277-294
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    • 2001
  • Four new and two known species of soil nematodes belonging the order Dorylaimida are described and illustrated. Discolaimium gyeongiens n. sp. is 1.6~1.7 mm long, c=37~41, odontostyle 19~21$\mu\textrm{m}$ long and is characterized by having wider lip region and very short prerectum. Aporcelaimellus donghwaens n. sp. is 2.8~2.9mm long, c=40.0~4.5, odontostyle 19~20$\mu\textrm{m}$ long and is characterized by possessing shorter odontophore, presence of cardiac disc and conoid tail. Labronema korandus n. sp. is 2.2~2.3 mm long, c=68~81, odontostyle 27~28$\mu\textrm{m}$, spicule 61$\mu\textrm{m}$ long and is characterized by having continuous lip region, circular vulva and cylindrical tail. Zalophidera longus n. sp. is 4.1~4.4mm long, c=107~130, spear 80~93$\mu\textrm{m}$ long and is characterized by large sized body, spear and spear extension. Discolaimoides bulbiferous and Diphtherophora communis were reported here for the first time in Korea.

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Taxonomic Study of Dorylaimoidea (Nematoda : Dorylaimida) from Korea (한국산 창선충 상과의 분류학적 연구)

  • ;E. Geraert
    • Korean journal of applied entomology
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    • v.36 no.1
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    • pp.1-29
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    • 1997
  • A study on the Dorylaimoidea from Korea yielded the following fifteen species belonging to 10 different genera; Dorylaimus stagnalis, Laimydorus siddiqi, Mesodorylaimus usitatus, Sectonema basilgoodeyi, Labronema hyalinum, L. nepalense, L. vulvapapillatum, Eudorylaimus carteri, E. pseudocarteri, Ecumenicus monhystera, Discolaimus major, Enchodelus longidens, E. hopedorus, E. macrodorus, Oriverutus pagarus. They represent four families: Dorylaimidae, Aporcelaimidae, Qudsianematidae, Nordiidae.

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Survey of Nematodes in Coniferous Bonsai in Korea

  • Eun, Geun;Ko, Youngjin;Kang, Heonil;Ha, Jihye;Chun, Jaeyong;Kim, Donggeun;Choi, Insoo
    • Research in Plant Disease
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    • v.22 no.4
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    • pp.243-248
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    • 2016
  • As preventive measures for bonsai exports, nematodes were isolated from 55 bonsai samples of five coniferous species (Chamaecyparis pisifera, Juniperus chinensis, Pinus densiflora, Pinus thunbergii, and Taxus cuspidate) from all 15 bonsai gardens in Korea. Nematodes belonging to 21 genera in 7 orders were isolated from the 55 bonsai samples. Among plant-parasitic nematodes, Tylenchus spp. was the most frequently isolated (14.9%), followed by Ditylenchus spp. (10.5%), Aphelenchoides spp. (9.5%), Aphelenchus sp. (5.5%), Criconemoides sp. (4.0%), Helicotylenchus sp. (0.7%), Hemicycliophora sp. (0.7%), Mesocriconema sp. (0.7%), Tylenchorhynchus sp. (0.7%), and Paratylenchus sp. (0.4%). Among nonparasitic nematodes, Cephalobina was the most frequently isolated nematodes (26.5%), followed by Rhabditida (19.3%), Dorylaimida (17.8%), Pangrolaimida (14.5%), Plectida (6.5%), Tryphylida (6.2%), Mononchida (3.3%), Alaimida (2.9%), Monhysterida (2.5%), and Triplonchida (0.4%). Based on these results, we conclude that there is no problematic plant-parasitic nematode in bonsai gardens of Korea.

Predatory Nematodes and Their Potential in Biological Control of Plant Parasitic Nematodes in Soil (포식선충의 토양중 식물기생선충의 생물학적 방제 이용 가능성)

  • Khan, Zakaullah;Kim, Young-Ho
    • The Korean Journal of Soil Zoology
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    • v.10 no.1_2
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    • pp.55-64
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    • 2005
  • Predatory nematodes are ubiquitous and feed on soil microorganisms including plant parasitic nematodes. They reduce populations of plant parasitic nematodes in virtually all soils because of their constant association with plant parasitic nematodes in the rhizosphere. Predatory potential of several species of predacious nematodes, belonging to the orders Mononchida, Diplogasterida, Dorylaimida and Aphelenchida, have been studied in detail on plant parasitic nematodes but most of the studies were based on in vitro experiments. A review of progress on the use of predatory nematodes as biological control agents of plant parasitic nematodes reveals that advocacy for predatory nematodes dates back to the early $20^{th}$ century; nevertheless, their potential has begun to be studied in recent years. Information on the efficacy of predatory nematodes under field conditions is lacking; however, some predatory nematodes have given very promising results against plant parasitic nematodes. This article summarizes research progress to date on predatory nematodes and discusses about their possible use in the management of plant parasitic nematodes.

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