PMID- 25455904 OWN - NLM STAT- MEDLINE DCOM- 20160113 LR - 20191210 IS - 1879-0984 (Electronic) IS - 0166-0934 (Linking) VI - 211 DP - 2015 Jan TI - Quantitation and localization of pospiviroids in aphids. PG - 51-4 LID - S0166-0934(14)00393-0 [pii] LID - 10.1016/j.jviromet.2014.10.003 [doi] AB - In this paper, the potential role of aphids in viroid transmission was explored. Apterous aphids were fed on pospiviroid-infected plants and viroid targets in the aphids were consequently quantified through RT-qPCR and localized within the aphid body using fluorescence in situ hybridization (FISH). Based on the analytical sensitivity test, the limit of detection (LOD) was estimated at 1.69x10(6) viroid copies per individual aphid body. To localize the viroids in the aphids, a pospiviroid-generic Cy5-labelled probe was used and the fluorescent signal was determined by confocal microscopy. Viroids were clearly observed in the aphid's stylet and stomach, but not in the embryos. Viroids were detected in 29% of the aphids after a 24h feeding period, which suggests only a partial and low concentration viroid uptake by the aphid population including viroid concentrations under the LOD. However, these results show that viroids can be ingested by aphids while feeding on infected plants, thus potentially increasing the transmission risk. The combination of FISH and RT-qPCR provides reliable and fast localization and quantitation of viroid targets in individual aphids and thus constitutes a valuable tool in future epidemiological research. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Van Bogaert, N AU - Van Bogaert N AD - Department of Crop Protection, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium; Plant Sciences Unit - Crop Protection, Institute for Agricultural and Fisheries Research (ILVO), Burgemeester Van Gansberghelaan 96, 9820 Merelbeke, Belgium. FAU - De Jonghe, K AU - De Jonghe K AD - Plant Sciences Unit - Crop Protection, Institute for Agricultural and Fisheries Research (ILVO), Burgemeester Van Gansberghelaan 96, 9820 Merelbeke, Belgium. FAU - Van Damme, E J M AU - Van Damme EJ AD - Department of Molecular Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium. FAU - Maes, M AU - Maes M AD - Plant Sciences Unit - Crop Protection, Institute for Agricultural and Fisheries Research (ILVO), Burgemeester Van Gansberghelaan 96, 9820 Merelbeke, Belgium. FAU - Smagghe, G AU - Smagghe G AD - Department of Crop Protection, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium. Electronic address: guy.smagghe@ugent.be. LA - eng PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141018 PL - Netherlands TA - J Virol Methods JT - Journal of virological methods JID - 8005839 SB - IM MH - Animal Structures/virology MH - Animals MH - Aphids/*virology MH - Entomology/methods MH - In Situ Hybridization, Fluorescence/*methods MH - Insect Vectors/*virology MH - Microscopy, Confocal MH - Real-Time Polymerase Chain Reaction/*methods MH - Sensitivity and Specificity MH - Viroids/genetics/*isolation & purification MH - Virology/methods OTO - NOTNLM OT - Fluorescent in situ hybridization OT - Myzus persicae OT - Potato spindle tuber viroid OT - Tomato apical stunt viroid OT - Transmission EDAT- 2014/12/03 06:00 MHDA- 2016/01/14 06:00 CRDT- 2014/12/03 06:00 PHST- 2014/06/10 00:00 [received] PHST- 2014/10/06 00:00 [revised] PHST- 2014/10/10 00:00 [accepted] PHST- 2014/12/03 06:00 [entrez] PHST- 2014/12/03 06:00 [pubmed] PHST- 2016/01/14 06:00 [medline] AID - S0166-0934(14)00393-0 [pii] AID - 10.1016/j.jviromet.2014.10.003 [doi] PST - ppublish SO - J Virol Methods. 2015 Jan;211:51-4. doi: 10.1016/j.jviromet.2014.10.003. Epub 2014 Oct 18.