Novel plant growth regulator for increasing fruit sweetness through trehalose-6-phosphate signalling

Overview

This technology is a novel plant growth regulator (PGR) based on the naturally occurring plant signalling molecule trehalose-6-phosphate (T6P). T6P is ubiquitous in plants and regulates the feast-famine response and carbon use efficiency by interacting with the sucrose-regulating enzyme SnRK1. By increasing T6P levels during specific stages of plant development, the technology reprograms plant metabolism to use energy more efficiently, delivering wide-ranging benefits including increased yield, improved drought resilience, and higher tissue sugar content.

The solution targets an important commercial challenge: fruit sweetness is a key driver of yield quality and farm profitability, yet growers need simple, practical methods to enhance it. This PGR offers an easy-to-apply treatment that can be integrated into existing farming practices.

Technical specifications

Core mechanism:

• Based on trehalose-6-phosphate (T6P), a naturally occurring signalling molecule in plants
• T6P interacts with SnRK1, a sucrose-regulating enzyme, to direct carbon use and energy efficiency
• Applied during specific developmental stages to reprogram plant metabolism

Validated performance across crops:

• Wheat yields increased by 18% under ideal field conditions
• Drought-related yield loss reduced by up to 40%
• Sugar content in treated tissues increased by 8%
• 5% increase in starch in wheat grains across two varieties (p>0.001, n=10)
• 8% increase in total sugars in maize kernels across one variety (p<0.05, n=6)
• 6% increase in sucrose phosphate synthase activity in Arabidopsis tissues (p<0.002, n=3)
• Increased sucrose content in Arabidopsis tissues (p<0.01, n=3)

Target application:

• Direct application to fruit during ripening
• Designed for use in greenhouse and controlled-environment tomato production
• Applicable to multiple fruit and crop varieties

Technology readiness level

The technology is built on over 20 years of foundational research into T6P signalling in plants. Validation has been completed in arable crops including wheat, maize, and Arabidopsis, demonstrating statistically significant improvements in starch content, sugar content, and sucrose phosphate synthase activity. The next phase of validation focuses on tomato fruit sweetness: controlled-environment trials will grow several tomato varieties under simulated greenhouse conditions, applying the T6P technology directly to fruit during ripening. Outcomes will be measured against control and mock-treated groups, assessing final yield, biomass, and brix/sugar content. The technology is positioned for agricultural and horticultural deployment pending successful fruit-specific validation.