PMID- 23238245 OWN - NLM STAT- MEDLINE DCOM- 20130624 LR - 20181202 IS - 1877-9603 (Electronic) IS - 1877-959X (Linking) VI - 4 IP - 1-2 DP - 2013 Feb TI - Localization of the bacterial symbiont Candidatus Midichloria mitochondrii within the hard tick Ixodes ricinus by whole-mount FISH staining. PG - 39-45 LID - S1877-959X(12)00060-X [pii] LID - 10.1016/j.ttbdis.2012.06.005 [doi] AB - Here, we present an investigation on the spatial distribution of the bacterial symbiont Candidatus Midichloria mitochondrii within Ixodes ricinus, by whole mount fluorescence in situ hybridization (FISH). M. mitochondrii is a peculiar, recently discovered bacterium that resides in the mitochondria of female ticks. We applied a rapid and specific FISH protocol with oligonucleotide probes targeted on the 16S rRNA of M. mitochondrii, 12S rRNA of tick mitochondria, and a probe revealing active mitochondria. In this report that represents the first application of whole mount FISH on ticks, we observed strong, specific fluorescence signals in all the examined life stages, as the optimized protocol allowed us to overcome the autofluorescence interference of the cuticle. Cellular localization and quantification of the symbionts were also assessed with electron microscopy and specific real-time PCR, respectively. CI - Copyright (c) 2012 Elsevier GmbH. All rights reserved. FAU - Epis, Sara AU - Epis S AD - Dipartimento di Scienze Veterinarie e Sanita Pubblica, Sezione di Parassitologia, Universita degli Studi di Milano, Via Celoria 10, Milan, Italy. FAU - Mandrioli, Mauro AU - Mandrioli M FAU - Genchi, Marco AU - Genchi M FAU - Montagna, Matteo AU - Montagna M FAU - Sacchi, Luciano AU - Sacchi L FAU - Pistone, Dario AU - Pistone D FAU - Sassera, Davide AU - Sassera D LA - eng PT - Journal Article DEP - 20121210 PL - Netherlands TA - Ticks Tick Borne Dis JT - Ticks and tick-borne diseases JID - 101522599 RN - 0 (RNA, Mitochondrial) RN - 0 (RNA, Ribosomal, 16S) RN - 0 (Rhodopsins, Microbial) RN - 63231-63-0 (RNA) SB - IM MH - Alphaproteobacteria/*classification/*isolation & purification MH - Animals MH - Female MH - In Situ Hybridization, Fluorescence/*methods MH - Ixodes/*microbiology/ultrastructure MH - RNA/genetics MH - RNA, Mitochondrial MH - RNA, Ribosomal, 16S/genetics MH - Real-Time Polymerase Chain Reaction MH - Rhodopsins, Microbial MH - Symbiosis EDAT- 2012/12/15 06:00 MHDA- 2013/06/26 06:00 CRDT- 2012/12/15 06:00 PHST- 2012/01/09 00:00 [received] PHST- 2012/05/24 00:00 [revised] PHST- 2012/06/05 00:00 [accepted] PHST- 2012/12/15 06:00 [entrez] PHST- 2012/12/15 06:00 [pubmed] PHST- 2013/06/26 06:00 [medline] AID - S1877-959X(12)00060-X [pii] AID - 10.1016/j.ttbdis.2012.06.005 [doi] PST - ppublish SO - Ticks Tick Borne Dis. 2013 Feb;4(1-2):39-45. doi: 10.1016/j.ttbdis.2012.06.005. Epub 2012 Dec 10.