Crab hosts for paragonimus westermani(kerbert, 1878) in malaysia.

Habe, Shigehisa; Lai, Karen; Agatsuma, Takeshi; Ow-Yang, C. K.; Kawashima, K.

doi:10.2149/tmh1973.21.137

Cited by 7 publications

(4 citation statements)

References 3 publications

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“…Paragonimus metacercariae were collected from freshwater crabs, Potamon lipkei , in Hinheub district, Vientiane Province, Lao PDR, by the methods described previously [ 7 ]. Nine crabs were examined individually in detail to determine the prevalence of each Paragonimus species and their distribution in crab tissues ( Table 1 ).…”

Section: Methodsmentioning

confidence: 99%

Paragonimus paishuihoensis Metacercariae in Freshwater Crabs, Potamon lipkei, in Vientiane Province, Lao PDR

et al. 2013

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Among Paragonimus species, P. paishuihoensis is one of the most mysterious and poorly understood species. Metacercariae are characterized by having a unique dendritically branched excretory bladder. However, the morphology of the adult worm remains unknown. To date, metacercariae of this species have been reported only in China and Thailand. In this study, we first found P. paishuihoensis metacercariae in freshwater crabs, Potamon lipkei, in Hinheub District, Vientiane, Lao PDR, with a prevalence of 77.7% and the average intensity of 10.3 (range 1-28) metacercariae per crab. The molecular data based on ITS2 and CO1 markers indicated that P. paishuihoensis from Laos and Thailand were almost completely identical and were close to members of the Paragonimus bangkokensis/Paragonimus harinasutai complex. Attempts to infect experimental animals (cats, dogs, and rats) with P. paishuihoensis were unsuccessful, suggesting that these animals might be unsuitable definitive hosts for the species. Further studies are necessary to elucidate the taxonomic status and life cycle of P. paishuihoensis.

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Section: Methodsmentioning

confidence: 99%

Paragonimus paishuihoensis Metacercariae in Freshwater Crabs, Potamon lipkei, in Vientiane Province, Lao PDR

et al. 2013

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“…Mountainous crabs, Potamiscus sp., collected in Dackrong district of Quangtri province in the central Vietnam were examined for the presence of Paragonimus metacercariae by the methods of Habe et al (1993). In brief, gills and liver of each crab were separately pressed between two glass plates and examined under a stereomicroscope.…”

Section: Methodsmentioning

confidence: 99%

Discovery of Paragonimus westermani in Vietnam and its molecular phylogenetic status in P. westermani complex

et al. 2008

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Paragonimus westermani is the most well-known species among the genus Paragonimus. It is widely distributed in Asia with considerable genetic diversity to form P. westermani species complex. While P. westermani distributed in Japan, Korea, China, and Taiwan are genetically homogeneous to form the East Asia group, those found in other geographic areas are heterogeneous and would be divided into several groups. Recent discoveries of P. westermani in India and Sri Lanka highlighted new insights on molecular phylogenetic relationship of geographic isolates of this species complex. Since Vietnam is located at the east end of Southeast Asia, the intermediate position between South and East Asia, it is of interest to see whether P. westermani is distributed in this country. Here, we report that P. westermani metacercariae were found in mountainous crabs, Potamiscus sp., collected in Quangtri province in the central Vietnam. Adult worms were successfully obtained by experimental infection in cats. Molecular phylogenetic analyses revealed that P. westermani of Vietnamese isolates have high similarities with those of East Asia group.

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“…In Lao PDR, metacercariae of P. bangkokensis and P. harinasutai were collected from the same crab Potamon lipkei caught in Hinheub district of Vientiane province (Odermatt et al 2007). The methods for examination of crabs followed those described previously by Habe et al (1993). In brief, the gills and the liver of crabs were separately pressed between two glass plates and examined under a stereomicroscope.…”

Section: Parasitologymentioning

confidence: 99%

Morphological differences and molecular similarities between Paragonimus bangkokensis and P. harinasutai

et al. 2009

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Paragonimus bangkokensis and Paragonimus harinasutai were found one after another in the same crab host, Potamon smithianus, in Thailand in 1967 and 1968. Both species were also recently found in China and Lao People's Democratic Republic (PDR). Those two Paragonimus spp. are distinguishable from each other by morphological features of metacercariae and adults. However, recently, the DNA sequences of second internal transcribed spacer region (ITS2) and cytochrome oxidase subunit 1 (CO1) genes of those two species in Thailand were reported to be highly similar to each other. In the present study, we collected P. bangkokensis in two provinces in Vietnam (the first record in Vietnam) and both P. bangkokensis and P. harinasutai in Lao PDR for the morphological and molecular phylogenetic analyses to clarify the mutual relationship between the two species. The results show that P. bangkokensis and P. harinasutai were distinguishable from each other by morphology such as the size of metacercariae and the arrangement of cuticular spines of adult worms. However, the molecular phylogenetic analyses of ITS2 and CO1 genes clearly indicate that P. bangkokensis and P. harinasutai make a monophyletic group.

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Crab hosts for paragonimus westermani(kerbert, 1878) in malaysia.

Cited by 7 publications

References 3 publications

Paragonimus paishuihoensis Metacercariae in Freshwater Crabs, Potamon lipkei, in Vientiane Province, Lao PDR

Paragonimus paishuihoensis Metacercariae in Freshwater Crabs, Potamon lipkei, in Vientiane Province, Lao PDR

Discovery of Paragonimus westermani in Vietnam and its molecular phylogenetic status in P. westermani complex

Morphological differences and molecular similarities between Paragonimus bangkokensis and P. harinasutai

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