Globally recognised provider of proficiency tests, running over 400 tests annually across an extensive range of matrices and analytes
A single sample taken by an ecologist at any time during the newt breeding season can determine their presence or absence, saving you time and money
Viroids belonging to the genus Pospiviroid can cause severe symptoms in solanaceous crops including tomato and pepper, however, they often show no or only very mild symptoms in several solanaceous ornamental species. Some viroids are known to be seed transmitted and others are thought to be highly likely to be seed transmitted. Therefore, it is important to screen seed pre-planting.
For this package 1500 seeds are tested for Potato spindle tuber viroid (PSTVd), Tomato chlorotic dwarf viroid (TCDVd), Columnea latent viroid (only this test is accredited) and Tomato apical stunt viroid by real time RT-PCR (TaqMan). For the PSTVd and TCDVd testing seed will be tested by a single TaqMan assay that detects both PSTVd and TCDVd as well as isolates of Mexican papita viroid (MPVd) and Tomato planta macho viroid (TPMVd).
If the sample was positive, PCR and sequencing would be required to identify which viroid was present. There would be an additional charge for this testing – see ‘Identification and confirmation of pospiviroid seed positive test' , details below.
There would also be additional charges for testing the seed for other viroids (Pepper chat fruit viroid, Citrus exocortis viroid) – see 'Additional pospiviroid seed testing' below for further details.
The CLVd TaqMan test is UKAS accredited. The other viroid tests are not currently UKAS accredited for seed testing.
A screen for a range of pospiviroids causing symptoms in protected indoor crops such as tomatoes and cucumbers.
When sending plant pathogens and invertebrate samples from outside England and Wales for testing please email the Crop health team (crophealth@fera.co.uk) who will issue you with the relevant Letter of Authority to ensure your samples are not delayed upon entry to the UK.
Detail | Specification |
---|---|
Test Code | VR00024 |
Standard Turnaround Time | 12-20 working days |
Parameters tested | Virus |
Method Used | Real-Time PCR |
Accreditation | No |
Copyright © 2021 Fera Science Limited (“Fera”). All rights reserved.
Registered Office: 65 Gresham St, London, EC2V 7NQ. Registered in England & Wales, No 9413107. Fera
is a joint venture company of Capita Plc, 65 Gresham St, London, EC2V 7NQ. Registered in England and
Wales No 02081330. VAT Registration ID: GB 618184140
For further information about how Fera uses any personal data collected from you, please see our Privacy
Notice at www.fera.co.uk/privacy-policy.