• 한국미생물학회:학술대회논문집
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• 한국미생물학회 2009년도 International Meeting of the Microbiological Society of Korea
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• pp.88-89
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• 2009

• Journal of Ecology and Environment
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• 제43권4호
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• pp.421-426
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• 2019

Background: Wolbachia are among the most prevalent endosymbiotic bacteria and induce reproductive anomalies in various invertebrate taxa. The bacterium has huge impacts on host reproductive biology, immunity, evolution, and molecular machinery. However, broad-scale surveys of Wolbachia infections at the order scale, including the order Coleoptera, are limited. In this study, we investigated the Wolbachia infection frequency in 201 Coleopteran insects collected in Korea. Results: A total of 26 species (12.8%) belonging to 11 families harbored Wolbachia. The phylogenetic trees of based on partial 16S rRNA gene sequences and partial Wolbachia surface protein (wsp) gene sequences were largely incongruent to that of their hosts. This result confirms that Wolbachia evolved independently from their hosts, Conclusion: Phylogenetic trees suggest that complex horizontal gene transfer and recombination events occurred within and between divergent Wolbachia subgroups.

• Animal Systematics, Evolution and Diversity
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• 제37권4호
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• pp.287-321
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• 2021

Nine new species of Pseudanthessius are described from tropical waters, five of which from the Philippines (P. boholensis n. sp., P. angustus n. sp., P. firmus n. sp., P. ardius n. sp., and P. lativentris n. sp.), two from Vietnam (P. remicaudatus n. sp. and P. nodosus n. sp.), and one each from Micronesia (P. kosraensis n. sp.) and the Thai coast of the Andaman Sea (P. fossulicolus n. sp.). Pseudanthessius dentatus Kim, 2000 which was known originally from the Korean coast of the Yellow Sea, and P. planus Kim, 2007 originally from the Moluccas, are rediscovered on the Thai coast of the Andaman Sea and the Philippines, respectively.

• Parasites, Hosts and Diseases
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• 제54권1호
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• pp.47-53
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• 2016

Echinostomes are intestinal trematodes that infect a wide range of vertebrate hosts, including humans, in their adult stage and also parasitize numerous invertebrate and cold-blooded vertebrate hosts in their larval stages. The purpose of this study was to compare Echinostoma malayanum parasite growth, including worm recovery, body size of adult worms, eggs per worm, eggs per gram of feces, and pathological changes in the small intestine of experimental animals. In this study, 6-8-week-old male hamsters, rats, mice, and gerbils were infected with echinostome metacercariae and then sacrificed at day 60 post-infection. The small intestine and feces of each infected animal were collected and then processed for analysis. The results showed that worm recovery, eggs per worm, and eggs per gram of feces from all infected hamsters were higher compared with infected rats and mice. However, in infected gerbils, no parasites were observed in the small intestine, and there were no parasite eggs in the feces. The volume of eggs per gram of feces and eggs per worm were related to parasite size. The results of histopathological changes in the small intestine of infected groups showed abnormal villi and goblet cells, as evidenced by short villi and an increase in the number and size of goblet cells compared with the normal control group.

• Animal Systematics, Evolution and Diversity
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• nspc6호
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• pp.1-126
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• 2007

Thirty new species consisting of 24 poecilostomatoid and six siphonostomatoid copepods are described as associates of marine invertebrates from the Moluccas. New taxa in the order Poecilostomatoida are Amarda curvus n. sp., Anchimolgus gracilipes n. sp., A. partenuipes n. sp., A. parangensis n. sp., A. hastatus n. sp., Andrianellus papillipes n. sp., Exodontomolgus communis n. gen. n. sp., Jamescookina moluccensis n. sp., Odontomolgus flammeus n. sp., O. parvus n. sp., O. pavonus n. sp., Paranchimolgus parallelus n. gen. n. sp., and Scyphuliger karangmiensis n. sp. in the family Anchimolgidae; Enalcyonium circulatum n. sp. and E. ceramensis n. sp. in the family Lamippidae; Parastericola rimosus n. gen. n. sp. in the family Lichomolgidae; Pseudanthessius truncus n. sp. and P. planus n. sp. in the family Pseudanthessiidae; Acanthomolgus gomumuensis n. sp., A. dispadactylus n. sp., A. bandaensis n. sp., A. ambonensis n. sp., Kombia avitus n. sp. and Pionomolgus moluccensis n. sp. in the family Rhynchomolgiae. New taxa in the order Siphonostomatoida are Cryptopontius acutus n. sp. in the family Artotrogidae; Asteropontius fungicola n. sp., A. gonioporae n. sp., Collocheres humesi n. sp. and C. amicus n. sp. in the family Asterocheridae; and Molucomes ovatus n. gen. n. sp. in the family Stellicomitidae. Species new to the Moluccas and new host records are also included. Lists of 263 species of associated copepods known from the Moluccas and their 135 species of invertebrate hosts are provided.

• Animal Systematics, Evolution and Diversity
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• 제spc4호
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• pp.1-167
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• 2003

남태평양에 있는 뉴칼레도니아의 무척추동물에 공생하는 요각류를 기록하였다. 3신속 (Ruhtra, Pterioidicola, Pachysericola), 30신종이 포함되어 있으며, 이들은 천장입요각목 및 대롱입요각목 내의 다음과 같은 속에 해당된다: Anchimolgus속 (5신종), Jamescookina속 (2신종), Odontomologus속 (2신종), Schedomolgus속 (3신종), Scyphuliger속 (5신종), Critomolgus속 (3신종), Doridicola속 (1신종), Paramolgus속 (2신종), 신속 Pterioidicola (1신종), 과의 위치가 불분명한 신속 Ruhtra (1신종), Asteropontius속 (5신종). 뉴칼레도니아의 미기록종과 새로운 숙주에 대해서도 기록하였다. 지금까지 기록된 뉴칼레도니아산 공생성 요각류 251종과 이들의 무척추동물 숙주 163종의 목록도 제시하였다.

• Journal of Species Research
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• 제13권2호
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• pp.185-254
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• 2024

Sixteen species of Asterocheres collected from the southern and eastern coasts of Korea are recorded. Two species are redescriptions-Asterocheres aesthetes Ho, 1984 and A. siphonatus Giesbrecht, 1897. The remaining 14 new species described are A. geminus n. sp., A. processus n. sp., A. culicis n. sp., A. eurychelatus n. sp., A. scutellatus n. sp., A. spiniventer n. sp., A. fici n. sp., A. serratus n. sp., A. tridentatus n. sp., A. nodulosus n. sp., A. tetraodontis n. sp., A. dokdoicus n. sp., A. exilis n. sp., and A. zodius n. sp. These new species are compared with other known species of the genus mainly based on the character states of 17 selected characters. These characters include the length/width ratios of the caudal ramus and genital double-somite, the number of postgenital lateral setules or spinules on the genital double-somite of the female, the number of segments of the antennule of both sexes, the position of aesthetasc on antennular segments in the female, the relative length of terminal claw of the antenna, the relative length of the oral siphon, the number of segments and the relative length of the mandibular palp, the presence or absence of inner coxal seta on legs 1 and 4, the relative lengths of setae on the exopod of female leg 5, the presence or absence of sexual dimorphisms of swimming legs, and the presence or absence of a secondary aesthetasc on the male antennule. A key to 22 species of Asterocheres known in Korea waters is provided.