Morphology and molecular phylogeny of Euduboscquella n. sp. (Dinoflagellata, Syndinea), an endoparasite of the ciliate Schmidingerella arcuata

Title
Morphology and molecular phylogeny of Euduboscquella n. sp. (Dinoflagellata, Syndinea), an endoparasite of the ciliate Schmidingerella arcuata
Author(s)
정재호; 최정민; 김영옥; D. Wayne Coats
KIOST Author(s)
Choi, Jung Min(최정민)Kim, Young Ok(김영옥)
Alternative Author(s)
정재호; 최정민; 김영옥
Publication Year
2014-03-10
Abstract
The syndinean dinoflagellate Euduboscquella n. sp., an intracellular parasite ofthe planktonic ciliate Schmidingerella arcuata was discovered from Koreancoastal water and described based on morphology and nuclear 18S ribosomalgene sequences. The intracellular development process of Euduboscquella n. sp.was consistent with its congeners, but differed from closely related species by(1) shield of the trophont with 25– 40 grooves converging toward the center ofthe shield (2) persistence of grooves during extracellular development (3)single food vacuole during sporogenesis and (4) dinospores ca. 14 μm in size.After sporogenesis, Euduboscquella n. sp. produced 4 morphologically distinctspore types that showed completely identical 18S nucleotides sequences. Inaddition, the 18S sequences were completely identical with the previouslyreported population of Euduboscquella sp. ex Schmidingerella arcuata fromAssawoman Bay, USA. It is assumed that the two populations are likelyconspecific. When Euduboscquella. n. sp. was detected, Favella ehrenbergii, awidely recorded planktonic ciliate species co-occurred with the hostSchmidingerella arcuata. However, the parasite failed to shift to the alternativehost, F. ehrenbergii, during a cross-infection experiment.uences. The intracellular development process of Euduboscquella n. sp.was consistent with its congeners, but differed from closely related species by(1) shield of the trophont with 25– 40 grooves converging toward the center ofthe shield (2) persistence of grooves during extracellular development (3)single food vacuole during sporogenesis and (4) dinospores ca. 14 μm in size.After sporogenesis, Euduboscquella n. sp. produced 4 morphologically distinctspore types that showed completely identical 18S nucleotides sequences. Inaddition, the 18S sequences were completely identical with the previouslyreported population of Euduboscquella sp. ex Schmidingerella arcuata fromAssawoman Bay, USA. It is assumed that the two populations are likelyconspecific. When Euduboscquella. n. sp. was detected, Favella ehrenbergii, awidely recorded planktonic ciliate species co-occurred with the hostSchmidingerella arcuata. However, the parasite failed to shift to the alternativehost, F. ehrenbergii, during a cross-infection experiment.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/40968
Bibliographic Citation
Ecology and Evolution of Marine Parasites and Diseases, 2014
Publisher
Royal Netherlands Institute for Sea Research (NIOZ)
Type
Conference
Language
English
Publisher
Royal Netherlands Institute for Sea Research (NIOZ)
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse