About the Project
Project Key Words: Microbiomes, Forest, Fungal pathogens and Biocontrol
Post summary
This four-year PhD project is part of the larger ResilientForests project: Advancing Tree Improvement Research for Biodiverse, Climate-Resilient, and Productive Forests for Ireland. This project is a collaboration between Teagasc (Oakpark), UCD, SETU and TUD). Forest resilience is shaped not only by tree genetics and abiotic conditions but also by interactions with microbial communities that inhabit the rhizosphere and endosphere. These complex plant–microbe relationships influence root development, nutrient acquisition, stress resilience, and defense against pathogens. Despite their importance, these microbiome-plant interactions remain largely underexplored in Irish forestry systems.
ResForest-Micro addresses the urgent need to integrate beneficial microbes into forest establishment and disease management strategies. This research aligns with the EU Green Deal and Farm to Fork Strategy, both of which call for a 50% reduction in chemical pesticide use and a broader shift toward nature-based, sustainable plant health solutions by 2030. As forestry increasingly contributes to national climate mitigation, biodiversity restoration, and circular bioeconomy goals, reducing reliance on chemical inputs and enhancing natural resilience through microbial solutions becomes a critical priority.
Outcomes from the past Research Ireland-funded projects including the ExAl project demonstrate the feasibility and impact of this approach, having identified native bacterial and fungal strains capable of inhibiting Phytophthora alni, the causal agent of alder dieback. ResFor_Micro will build on this foundation to systematically characterise beneficial microbial consortia and translate them into practical bio-inoculant technologies applicable to Irish forestry systems.
The project will target pathogens of national concern, including P. alni, Armillaria spp., Phytophthora ramorum, and Hymenoscyphus fraxineus. By embedding microbiome research into forest management and tree breeding, this task supports national and EU priorities for sustainable, bio-based, and nature-positive plant health innovations.
The successful candidate will conduct full-time research over 48 months leading to the award of a PhD from SETU. The candidate will be based in SETU Carlow but will be able to draw upon the expertise and resources of both SETU and Teagasc Oakpark.
Objectives of the ResForest Micro PhD:
•To characterise the root, rhizosphere, and endophytic microbiomes of key tree species, both broadleaves and conifers, across sites showing contrasting health status.
•To isolate and screen beneficial microbial strains with antagonistic activity against major tree pathogens, including but not limited to Phytophthora alni, P. ramorum, Armillaria spp., and Hymenoscyphus fraxineus, to name a few.
•To develop and test bio-inocula formulations that can reduce seedling mortality and enhance resilience during forest establishment.
•To establish a national microbial biobank of beneficial isolates for future forestry and biosecurity applications.
•To provide practical guidance and outreach tools for integrating microbiome solutions into breeding, nursery, and forest management practices.
Scholars will be expected to publish their work in prestigious journals.