New approaches for the early detection of tree health pests and pathogens

Lead Research Organisation: James Hutton Institute
Department Name: Cell & Molecular Sciences

Abstract

Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.

Technical Summary

This project has 6 work packages (WP), each based around a different combination of skills and expertise. For WP2-6 there will be a focus on a particular detection technology, while WP1 will provide the technical oversight needed for effective deployment of these different technologies, as summarised:
WP1:a participatory interdisciplinary approach will be used to evaluate the needs of stakeholders and to ensure that the technologies meet these. It will also focus on the requirements of effective technology deployment, using mathematical modeling to develop sampling strategies, to create network-based risk maps and economic assessments of cost-effectiveness. Further aspects of deployment will be analysed using social science approaches including end-user acceptability and the potential for using citizen science.
WP2:analytical chemistry approaches will be used to identify diagnostic volatile organic compounds produced by pests, pathogens and diseased hosts and to translate these onto commercial-available portable platforms for use by inspectors in the field.
WP3:multispectral imaging will be used to identify markers for the early detection of biotic/abiotic stress in plants. A prototype bioimaging camera will be constructed that can be used to validate this approach in the field.
WP4:will develop mathematical models of spore movement and investigate metagenomics for broad-spectrum surveillance utilizing existing monitoring networks e.g. pollen traps. In addition, a novel integrated cyclone-based trapping and molecular detection system will be developed and evaluated.
WP5:novel semiochemical attractants will be identified for a range of wood-boring beetle pests, incorporated into traps designed for efficient detection and then deployed in a risk-based network.
WP6:methods for sampling and rapid screening water for Phytopthora spp., including 'unknowns' will be developed and validated. This will combine high-throughput sequencing with a rapid bioinformatic.

Planned Impact

The interdisciplinary design of this proposal will ensure maximum ongoing impact. Central to this is stakeholder engagement and our proposal has adopted a novel approach to facilliate this. Traditional approaches to developing new detection or diagnostic technologies have assumed the 'build it and they will come' approach; where the focus is on the technical aspects of the novel methodology, rather than the needs of end-users and the specifics of how it will be effectively deployed. This proposal reverses that by taking an inclusive view of what is required to achieve a successful outcome i.e. the deployment of a new technology that improves our biosecurity, and then co-designs technologies which fit that purpose. It achieves this by embracing an interdisciplinary approach and through establishing early engagement with stakeholders and end-users. Critical to this is the creation of a Learning Platform (Work package 1) which sits at the core of the project and cuts across the other technology-driven work packages (WPs 2-6). This platform will create communication channels, facilitate collaboration and knowledge sharing across work packages and stakeholder groups, actively disseminating project outcomes and enabling the pathways to impact. This will be delivered as a series of workshops; both cross-cutting (looking at the broader issues associated with detection and its successful deployment) and more focused (looking at specific issues associated with a particular technology and the contexts for its use). In addition to interacting with stakeholders (e.g. policy-makers, inspectors, NGOs, industry), this approach will use the breadth of expertise established within the consortium and assembled from across a wide-range of disciplines. This brings together 'technology-owners' (natural and physical scientists) with 'technology-evaluators' (mathematical and social sciences) to ensure that the best technological approaches are married with suitable sampling and risk-based deployment strategies, that they have stakeholder acceptability and offer genuine cost-efficiency benefits to public and private stakeholders alike.

In addition to the novel approach built into the project design, the effective delivery of impact will also benefit from a consortium which has an extremely strong track record of delivering translation science, to policy and industry alike. As government science agencies, the major remit for both Fera and Forest Research is to take science and technology and to translate it into policy-focused tools and evidence. This is a role they provide routinely for Defra and Forestry Commission, and their associated inspectors on the frontline in the field (e.g. Fera PHSI and FC Inspectors). In terms of delivery of technologies to end-users including industry, there is also a strong track record across the consortium in a whole range of contexts e.g. Worcester (horticulture industry diagnostics), JHI (potato industry diagnostics), Greenwich (pest trap deployment) and Fera (field diagnostics deployment). The integration of a number of SMEs within the consortium is another pathway to impact; providing a route for new technologies to be made freely available beyond the end of the project. Finally as plant and tree health sits within a European regulatory framework, the ability to engage with international partners and stakeholders is important. The consortium has a wealth of experience and contacts in this area, in particular through its central role in a range of related EU-funded projects e.g. Q-Detect (Fera-led), ISEFOR (Aberdeen-led) and PERMIT (FR-led). It will also build upon existing systems for knowledge exchange within our region, especially through the use of the European Plant Protection Organization (EPPO). By working with EPPO, using activities such as its workshops and conferences, we will be able to reach out to tree health practitioners across Europe; in many cases the real frontline for UK biosecurity.

Publications

10 25 50
 
Description We have tested a novel way of detecting potentially destructive plant pathogens called Phytophthora. The method involved the collection of plant material and water at various points in plant nurseries. During visits to nurseries we identified points in the production system that we could apply our method and took samples to evaluate its effectiveness. Water was sampled and filtered on-site and take back to the laboratory for eDNA-based (environmental DNA) detection. The test amplifies a short section of DNA from all species of Phytophthora and the species can then be identified using high-throughput sequencing technology. This, so-called, metabarcoding was used successfully to identify a range of pathogenic Phytophthora species associated with plants in nurseries. In particular it was used to detect pathogens on imported plants, water collection points and on contaminated equipment. The data was communicated to nursery managers to help them in their management decisions to reduce the risks to their trade and the UK wider environment.
Exploitation Route Our testing of this novel detection tool for microbial plant pathogens in water eDNA samples has demonstrated its ability to detect both the known quarantine species and also species that are not yet on the radar as a threat to UK plants. The method is now being applied in a wider ranging project across UK plant nurseries to assess plant health threats due to Phytophthora species and to provide advice to nursery owners on how to manage plant pathogens. It is also being tested on eDNA from soils and water in Scotland to examine Phytophthora incidence in a range of natural ecosystems to determine the species that are already present. This is important for setting a context for plant health legislation.
Sectors Agriculture, Food and Drink,Environment

 
Description Through a range of media outlets, learning labs and presentations to stakeholders and the wider public, awareness of the risk of plant pathogens on plant material has been raised. In addition our ability to test for and detect such pathogens has been presented. This information was presented, for example, on BBC Countryfile in April 2015. We have worked with plant nursery managers to inform them of the risks of plant pathogenic Phytophthora species and have sampled from a key nursery to test our water-based diagnostic. The method proved effective for sampling plant stocks and we have reported the findings to the owner. Results are also being passed to the relevant parties involved in UK plant health policy.
First Year Of Impact 2015
Sector Agriculture, Food and Drink,Environment
Impact Types Societal

 
Description Contract Research Fund
Amount £250,000 (GBP)
Organisation Government of Scotland 
Sector Public
Country United Kingdom
Start 08/2016 
End 07/2018
 
Description Early detection of Phytophthora in EU and third country nurseries and traded plants (ID-PHYT)
Amount £121,094 (GBP)
Organisation Department For Environment, Food And Rural Affairs (DEFRA) 
Sector Public
Country United Kingdom
Start 06/2020 
End 05/2022
 
Description LWEC, Tree Health and Plant Biosecurity Initiative
Amount £1,250,000 (GBP)
Organisation Biotechnology and Biological Sciences Research Council (BBSRC) 
Sector Public
Country United Kingdom
Start 04/2016 
End 03/2019
 
Description Garden Club presentation 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Public/other audiences
Results and Impact I attended a local Garden Club to present information on plant health and "Reducing risks of Phytophthora on garden plants". Enthusiastic amateur gardeners
Year(s) Of Engagement Activity 2017
 
Description Metabarcoding workshop 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Professional Practitioners
Results and Impact A joint THAPBI metabarcoding workshop was held to share knowledge and skills across three THAPBI projects and with CEH.
Year(s) Of Engagement Activity 2016
 
Description Presentation of the concepts and outcomes of the detection technology to BBC Countryfile 
Form Of Engagement Activity A broadcast e.g. TV/radio/film/podcast (other than news/press)
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Public/other audiences
Results and Impact BBC Countryfile programme on Trees and Tree Health interviewed me to learn more about pathogen detection at the borders to prevent future invasive pathogens.
Year(s) Of Engagement Activity 2015
 
Description Presentations on the technology to key stakeholders at learning lab 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Professional Practitioners
Results and Impact Presented the concepts of the detection technology to a group of stakeholders (policy and industry) at a 'learning lab' event at Fera
Year(s) Of Engagement Activity 2015
 
Description THAPBI Stakeholder engagement event London 7 Feb 2018 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Professional Practitioners
Results and Impact At this THAPBI-funded project meeting in London on 7th February 2018 presentations were made on each of the current projects. The event was targeted at researchers, members of the funding bodies and stakeholders representing DEFRA, forestry, botanic gardens, landscapers, horticultural traders, community nurseries, woodland and conservation charities, estate managers and local government. David Cooke gave a ten minute overview of the Phyto-threats project highlighting the link witht the prior project , "New approaches for the early detection of tree health pests and pathogens" along with the lead investigators from the other 7 THAPBI projects.
Year(s) Of Engagement Activity 2018
 
Description eDNA and Plant Pathogen Metabarcoding presentation at SNH 'Sharing Good Practice' event on "The Use of Technology to gather data about the natural environment" 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Other audiences
Results and Impact David Cooke gave a talk as part of a Scottish Natural Heritage-organised event entitled 'Sharing Good Practice' on "The Use of Technology to gather data about the natural environment". It was a very good meeting and linked him to an eDNA group of UK mostly aquatic biologists.
Year(s) Of Engagement Activity 2017