PMID- 24287159 OWN - NLM STAT- MEDLINE DCOM- 20140526 LR - 20140127 IS - 1618-0429 (Electronic) IS - 0932-4739 (Linking) VI - 50 IP - 1 DP - 2014 Feb TI - Identification of the pathogenic ciliate Pseudocohnilembus persalinus (Oligohymenophorea: Scuticociliatia) by fluorescence in situ hybridization. PG - 16-24 LID - S0932-4739(13)00067-9 [pii] LID - 10.1016/j.ejop.2013.09.004 [doi] AB - Many scuticociliatid ciliates are regarded as devastating pathogens in aquaculture. Among these, Pseudocohnilembus persalinus is a facultative pathogen that often results in refractory diseases of mariculture fish. Although traditional silver staining methods have been successfully used to identify these ciliates, their identification is hampered by their small size and their morphological similarity to closely related species. We designed an alternative method of identification of P. persalinus using an SSU-rDNA targeted oligonucleotide probe labeled with a fluorochrome, and optimized in a fluorescence in situ hybridization (FISH) protocol. The assay results in a clear identification by strong fluorescence signals from the oligonucleotide probe. The method can be used for quick and early detection of P. persalinus infections on host fish, as well as other susceptible organisms in aquiculture water. It may also be used in studies of the geographical distribution of this scuticociliate. CI - Copyright (c) 2013 Elsevier GmbH. All rights reserved. FAU - Zhan, Zifeng AU - Zhan Z AD - Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Department of Ecology, University of Kaiserslautern, Kaiserslautern 67653, Germany. FAU - Stoeck, Thorsten AU - Stoeck T AD - Department of Ecology, University of Kaiserslautern, Kaiserslautern 67653, Germany. FAU - Dunthorn, Micah AU - Dunthorn M AD - Department of Ecology, University of Kaiserslautern, Kaiserslautern 67653, Germany. FAU - Xu, Kuidong AU - Xu K AD - Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China. Electronic address: kxu@qdio.ac.cn. LA - eng SI - GENBANK/JQ956554 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131022 PL - Germany TA - Eur J Protistol JT - European journal of protistology JID - 8917383 RN - 0 (DNA, Ribosomal) RN - 0 (Fluorescent Dyes) RN - 0 (Oligonucleotide Probes) SB - IM MH - Animals MH - Ciliophora Infections/diagnosis/*veterinary MH - DNA, Ribosomal/genetics MH - Fish Diseases/*diagnosis MH - Fisheries/*methods MH - Fluorescent Dyes/chemistry MH - In Situ Hybridization, Fluorescence/*veterinary MH - Molecular Sequence Data MH - Oligohymenophorea/classification/cytology/*genetics MH - Oligonucleotide Probes/genetics MH - Phylogeny OTO - NOTNLM OT - Fluorescence in situ hybridization OT - Molecular methods OT - Oligonucleotide probes OT - SSU-rDNA OT - Scuticociliates EDAT- 2013/11/30 06:00 MHDA- 2014/05/27 06:00 CRDT- 2013/11/30 06:00 PHST- 2013/07/24 00:00 [received] PHST- 2013/08/31 00:00 [revised] PHST- 2013/09/02 00:00 [accepted] PHST- 2013/11/30 06:00 [entrez] PHST- 2013/11/30 06:00 [pubmed] PHST- 2014/05/27 06:00 [medline] AID - S0932-4739(13)00067-9 [pii] AID - 10.1016/j.ejop.2013.09.004 [doi] PST - ppublish SO - Eur J Protistol. 2014 Feb;50(1):16-24. doi: 10.1016/j.ejop.2013.09.004. Epub 2013 Oct 22.