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Tani S, Tettey PA, Maruta R, Kodama A, Saito H, Kawai K. Host range differences between two species of freshwater horsehair worm (Nematomorpha: Chordiidae) Chordodes japonensis and C. formosanus in Japan. Parasitol Int 2024; 99:102847. [PMID: 38142815 DOI: 10.1016/j.parint.2023.102847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 12/02/2023] [Accepted: 12/18/2023] [Indexed: 12/26/2023]
Abstract
Horsehair worms (Nematomorpha: Gordioidea) are endoparasites of terrestrial arthropods, of which two species, Chordodes japonensis and C. formosanus, may have been historically confused due to their morphological similarity. In this study, we conducted field surveys and laboratory parasite inoculation experiments to clarify the characteristics and differences in host range and specificity between the two species. The field surveys revealed that the host ranges of the two species are markedly different. C. formosanus parasitized diverse mantids, while C. japonensis infected only species in the genus Tenodera, as predicted in previous studies. However, the two species had one mantid host, T. angustipennis in common. Parasite inoculation experiments using three species of mantids, revealed parasitism in each of the host-parasite combinations same as in the field study. These results suggest that the observed differences in host patterns are due to physiological factors between the host and parasite. Furthermore, cross-testing conducted on the shared host T. angustipennis showed that the two species coexisted within the same host in some cases, suggesting that the competitive exclusivity of the two species is low. This study also presents a tentative list of host ranges for the two species, comparing and integrating information from this and previous studies. However, the possibility remains that the host ranges of both species may be more diverse.
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Affiliation(s)
- Shotaro Tani
- Department of Bioresource Science, Graduate School of Integrated Science for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashihiroshima, Hiroshima 739-8528, Japan.
| | - Pamela Afi Tettey
- Department of Bioresource Science, Graduate School of Integrated Science for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashihiroshima, Hiroshima 739-8528, Japan
| | - Rion Maruta
- Department of Bioresource Science, Graduate School of Integrated Science for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashihiroshima, Hiroshima 739-8528, Japan
| | - Atsuya Kodama
- Department of Bioresource Science, Graduate School of Integrated Science for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashihiroshima, Hiroshima 739-8528, Japan
| | - Hidetoshi Saito
- Department of Bioresource Science, Graduate School of Integrated Science for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashihiroshima, Hiroshima 739-8528, Japan
| | - Koichiro Kawai
- Department of Bioresource Science, Graduate School of Integrated Science for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashihiroshima, Hiroshima 739-8528, Japan
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Zahedi M, Denham D, Ham P. Encapsulation and melanization responses of Armigeres subalbatus against inoculated Sephadex beads. J Invertebr Pathol 1992. [DOI: 10.1016/0022-2011(92)90130-v] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Porchet-Hennere E. Cooperation between different coelomocyte populations during the encapsulation response of Nereis diversicolor demonstrated by using monoclonal antibodies. J Invertebr Pathol 1990. [DOI: 10.1016/0022-2011(90)90122-m] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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The 76 kD cell-adhesion factor from crayfish haemocytes promotes encapsulation in vitro. Cell Tissue Res 1990. [DOI: 10.1007/bf00297485] [Citation(s) in RCA: 74] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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TAKAHASHI SOHJI, ENOMOTO GINKO. Scanning Electron Microscopic Study of the Initial Phase of Encapsulation in Samia cynthia ricini. (encapsulation/haemocyte lysis/plasma coagulation/Samia silkmoth). Dev Growth Differ 1987. [DOI: 10.1111/j.1440-169x.1987.00249.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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