Membrane-permeable trehalose 6-phosphate precursor spray increases wheat yields in field trials

Area of Science:

• Plant Science
• Agricultural Science
• Biochemistry

Background:

• Trehalose 6-phosphate (T6P) is a crucial plant growth regulator.
• Direct application or genetic control of T6P in crops is challenging.

Purpose of the Study:

• To evaluate the efficacy of a novel T6P precursor, DMNB-T6P, for enhancing crop yields.
• To investigate the underlying mechanisms of yield improvement.

Main Methods:

• Application of a timed microdose of DMNB-T6P to wheat varieties under diverse agricultural conditions.
• Analysis of physiological and molecular responses, including CO2 fixation, electron flow, and gene expression.

Main Results:

• Consistent wheat yield increases across well-watered and water-stressed conditions over four years.
• Yield gains significantly exceeded annual genetic gains, achieved without additional inputs.
• DMNB-T6P enhanced CO2 fixation, grain sink capacity, and synthesis of starch, amino acids, and proteins.

Conclusions:

• DMNB-T6P represents a scalable, environmentally beneficial technology for sustainable yield enhancement in staple cereal crops.
• This approach offers a significant advancement over traditional breeding methods for yield improvement.