Abstract：
:This study is focused on the feasibility of two treatments of alcohol-fixed monogenean parasites which are intended to be use for the combined morphological and molecular characterizations. The monogenean parasite, Eudiplozoon nipponicum, was selected as a model parasite species; however it is expected that these techniques will be suitable for other monogeneans and other parasitic families. The haptor of diplozoid parasites is equipped with sclerotized attachment clamps and central hooks which are utilized for morphological identification. As parasite tissue become very tough and rigid when preserved in ethanol, using these structures for species identification without additional treatment is difficult. We investigated two different techniques to digest the surrounding tissues, the first was treatment with 10% sodium dodecyl sulphate (SDS) and the second treatment was proteinase K. Tissue was successfully digested in both treatments and all clamps, central hook and even individual sclerites of the clamps were clearly visible and well defined. After treatment, the digest was used to extract genomic DNA, and the second internal transcribed spacer of the ribosomal DNA genes (rDNA) was amplified. Nucleic acid sequence was obtained from 90% of parasite specimens processed by both treatments. Treatment of haptors with SDS was proven to be more successful with no visible changes or damage observed to sclerites even after a month. This method represents a useful tool for the combined morphological and molecular studies as the correct sequence can be assigned to the same individual worm from which haptoral parts have been obtained.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Kosková E,Matejusová I,Civánová K,Koubková Bdoi
10.1007/s00436-010-1949-0subject
Has Abstractpub_date
2010-09-01 00:00:00pages
909-14issue
4eissn
0932-0113issn
1432-1955journal_volume
107pub_type
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