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Adaptation to climate change in the rhizosphere across the millennia

Project description

Digging into ancient DNA for agricultural adaptation

Climate change poses a threat to agriculture, exacerbating challenges of food security and sustainability. As temperatures rise and droughts become more frequent, the resilience of crops is crucial. However, understanding how plant biodiversity and functionality respond to such changes remains a complex puzzle. In this context, the EU-funded TOLERATE project delves into the resilience of rhizosphere biodiversity. Using ancient DNA metagenomes from Arctic soils, the project investigates adaptations spanning a million years. These genetic blueprints will unravel molecular mechanisms crucial for climate tolerance. By engineering root-colonising bacteria, such as Pseudomonas fluorescens and Pseudomonas chlororaphis, the project aims to enhance plant resilience to temperature shifts and drought. TOLERATE’s findings promise innovative solutions for climate-resilient agriculture and industry.

Objective

Starting from a unique collection of paleo-environmental samples (frozen Arctic soils and sediments) already at AWI and their corresponding ancient DNA (aDNA) metagenomes that stretch back up to a million years, we will retrieve information on how rhizosphere biodiversity and functionality responded to climate changes and extreme events. Preliminary metagenomic data from the collection suggests it is a gold mine of archaic DNA that represents a timeline of adaptions to climate change in the rhizosphere. By reconstructing and analyzing these ancient metagenomes and correlating with available historical climatic change data, we will identify molecular adaptions that impart climate tolerance (specifically resistance to increased temperature and drought). This will be used to i) produce and test engineered root-colonizing bacteria (Pseudomonas fluorescens and Pseudomonas chlororaphis) that will improve climate tolerance of plants (production of humidifying polysaccharides around the root) facilitating the ability to grow on marginal agricultural land (MAL), ii) inform ancestral reconstruction of thermostable and/or cold tolerant enzymes for industrial application and iii) produce engineered Pseudomonas putida strains tailored for bioproduction. For the latter application, we will select genes that encode biomolecules relevant for climate-tolerant phenotypes (humidifying polysaccharides and the biosurfactant betaines). The production of these molecules using biotechnology will be targeted in the project and their application in selected industrial products verified. Target end-user applications will include polysaccharides and betaines for the development of 3D printed organ-on-chip and drug delivery systems as well as the formulation of metalworking fluids, lubricants and industrial cleaning products.

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HORIZON-RIA - HORIZON Research and Innovation Actions

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Call for proposal

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(opens in new window) HORIZON-CL6-2022-CIRCBIO-02-two-stage

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Coordinator

DANMARKS TEKNISKE UNIVERSITET
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 939 622,50
Address
ANKER ENGELUNDS VEJ 101
2800 KONGENS LYNGBY
Denmark

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Region
Danmark Hovedstaden Københavns omegn
Activity type
Higher or Secondary Education Establishments
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 939 622,50

Participants (11)

Partners (2)

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