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

Lead Research Organisation: University of Worcester
Department Name: National Pollen and Aerobiology Res Unit

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.
 
Description Firstly. We have developed an automatic approach, global applicable, for mapping of trees using satellites: Trees that are host for pathogens and sources to aeroallergens. This approach is generic an may be applied to other ecosystems than woodlands. The apporach has been tested on the newest generation of satellites: Sentinel.

Secondly. We have demonstrated how you can use eDNA approaches the detect the biodiversity of spores in the air: both near and far away from specific sources, here including trees infested by ash dieback (H.fraxinea). We find, not surprisingly, that the biodiversity of the atmospheric mycobiome (the spores) reflect nearby sources. We also find small amounts of spores from the H.fraxinea or genetically closely relates spores in the air, in areas where we know that there are infested trees in the local environment and during the period when the spores are being released. This suggest that our sampling approach may be used to detect infestation level within a region and potentially as a way of identifying the most infested areas using atmospheric footprint modelling
Exploitation Route The method for tree mapping is published and public available. There has already been requests to use the source code for for this. The method also have a follow-up paper which demonstrates how the method can be applied on large scale. The study demonstrating the detection of the atmospheric mycobiome is almost ready for submission into a leading journal and part of this publication involves making the data public available.
Sectors Agriculture, Food and Drink,Environment,Healthcare,Government, Democracy and Justice

 
Description Current findings from the research supports a next generation of forecasting systems for bioaerosols in relation human health and plant health. Most important aspects are the species specific forecasts that may affect human health. We have also found new ways to detect fungal spores in relation to human health and global food security. Finally we have developed an approach for automatic mapping of specific ecosystems using satellites. Besides the scientific study this also involves specific model code, which has been requested and provided to other, as far away as India. The acquired experience and findings on collecting and analysing harmful bioaerosols using molecular methods have been published in Science of the Total Environment in 2022 (Hanson et al, 2022), where we demonstrate the methods on how to run a monitoring campaign collecting harmful bioaersols and we find a significant impact from climate and climate change on the abundance and diversity of these harmful bioaerosols. We therefore predict to experience a change in specific bioaerosols such as crop pathogens in the coming years. The experience and the findings have led Worcester to winning contract research for the Environmental Agency where the overall aim for the Environmental Agency is to make an national strategy for monitoring anti-microbial resistance in the environment (water, soil, air). Worcester's first task is to provide the foundation for the air strategy. The work and the findings have along with a project funded by NERC placed Worcester centrally in Europe with respect to new approaches for detection bioaerosols. Due to this the PI at Worcester has been elected as chair of an EU-funded COST Action, running in the period 2019-2023, focusing on new methods to detect bioaerosols, in partular aeroallergens and pathogens
First Year Of Impact 2015
Sector Agriculture, Food and Drink,Digital/Communication/Information Technologies (including Software),Environment,Healthcare
Impact Types Societal,Economic

 
Description Sampling strategy and assessment options for environmental antimicrobial resistance in airborne microorganisms
Geographic Reach National 
Policy Influence Type Implementation circular/rapid advice/letter to e.g. Ministry of Health
Impact The review is supposed to feed into a wider national policy on how to detect and mitigate AMR in the environment. The report on the air par tis expected to become public later in 2022 and further initiatives are expected after the review report.
 
Description COST Action ADOPT, CA18226: https://www.cost.eu/actions/CA18226/#tabs|Name:overview
Amount € 714,000 (EUR)
Organisation European Cooperation in Science and Technology (COST) 
Sector Public
Country Belgium
Start 11/2019 
End 10/2023
 
Description PhD funding
Amount £40,000 (GBP)
Organisation University of Worcester 
Sector Academic/University
Country United Kingdom
Start 10/2017 
End 09/2020
 
Title Atmospheric concentrations of selected ascospores at the species level 
Description Temporal variations of spore concentrations in the air obtained with two sets of detection devices explaining variations in atmospheric transport and coupled with fruiting body phenology 
Type Of Material Database/Collection of data 
Provided To Others? No  
Impact Data are still being analysed for publication in 2017 
 
Title Components for WRF-Biochem 
Description A next generation atmospheric transport and transformation model for bioaerosols (BIO), chemistry (CHEM) and integrated weather and weather forecast (WRF). 
Type Of Material Computer model/algorithm 
Provided To Others? No  
Impact Still under development 
 
Description Final THPBI dissemination event, London, February 2018 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Professional Practitioners
Results and Impact Presentation outlining progress of Early Detection project at BBSRC organised dissemination workshop, held in London in February 2018. Featured wide range of tree health stakeholders including funders, policy makers, researchers, industry and practitioners
Year(s) Of Engagement Activity 2018
 
Description LWEC TH&PBI projects mid term review workshop, October 2015 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Other audiences
Results and Impact Engagement with workshop including all the LWEC TH&PBI projects, funders and stakeholders e.g. Defra PH policy, FC tree health. Gave two presentations about the 'New approaches for the early detection of tree health pests and pathogens' - an update on progress and future planning
Year(s) Of Engagement Activity 2015
 
Description lecturer on the Basic Aerobiological Course 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Postgraduate students
Results and Impact Dr. Skjoth participated as a lecturer on the Basic Aerobiological Course, Rzeszow 2016 by contributing on the modelling with HYSPLIT focusing on explaining detection of invasive species using airborne detection of pollen and spores.
Year(s) Of Engagement Activity 2015
URL http://ragweed.eu/wp-content/uploads/Training-School_2015_Basic-Aerobiology-Course.pdf