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Bioengineering novel post-harvest traits in Brassica crops

Project description

Boosting shelf-life: innovative bioengineering for Brassica crops

Up to 50 % of harvested vegetables are currently wasted along the supply chain because they rapidly lose nutritional value and rot. This waste contributes to greenhouse gas emissions and compromises healthy diets for a growing population. The ERC-funded Post-Harvest-Boost project will address this by using synthetic gene circuits to introduce beneficial traits that activate only after harvest. By targeting Brassica crops such as broccoli and cabbage, the project will improve their post-harvest longevity without affecting their initial growth in the soil. This innovative bioengineering approach aims to significantly reduce food waste and enhance food security. Successful implementation will result in financial gains and healthier, longer-lasting produce for growers, retailers and consumers.

Objective

Food security and nutritious diets for all are major challenges for a rapidly growing global population and for healthy aging. To feed the global population in the coming years, the production of agricultural crops has to sharply increase, yet up to 50% of harvested vegetables are currently wasted along the supply chain from growers to retailers to consumers. Food waste also produces greenhouse gases that contribute to climate change and their diminishing nutrition upon storage compromise healthy diets. Especially leafy vegetable crops have relatively short-shelf lives: after harvest they rapidly lose nutritional value, suffer from dehydration, and often end up rotting as diseases strike. Thus, there are urgent public health, net zero and economic needs to improve the post-harvest shelf-lives of vegetables.

In our ERC-CoG project UbRegulate, we discovered that post-harvest tissues experience extensive changes in their ability to launch immune responses. Further study showed that after harvest, Brassica crops such as cabbage, broccoli and salad rocket, undergo dramatic cellular changes to cope with post-harvest stresses. These findings demonstrate that post-harvest crops respond differently to their environment compared to unharvested crops. Thus, bioengineering harvest-inducible traits – rather than constitutive traits – to improve post-harvest health and longevity is preferable and avoids deleterious side-effects during the on-soil growth phase.

Here, we will provide proof-of-concept that synthetic bioengineering approaches can introduce novel traits specifically in harvested tissues. By using synthetic gene circuits, we will specifically express desirable traits only after harvest to extend the healthy shelf-lives of Brassica crops. Improving post-harvest longevity, quality and health of crops will result in large financial gains, food security and dramatically reduce food waste for growers, retailers and consumers.

Fields of science (EuroSciVoc)

Programme(s)

Topic(s)

Funding Scheme

HORIZON-ERC-POC - HORIZON ERC Proof of Concept Grants

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Call for proposal

(opens in new window) ERC-2025-POC

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Host institution

THE UNIVERSITY OF EDINBURGH
Net EU contribution
€ 150 000,00
Address
OLD COLLEGE, SOUTH BRIDGE
EH8 9YL Edinburgh
United Kingdom
Region
Scotland Eastern Scotland Edinburgh
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data

Beneficiaries (1)