The Need

In soilless greenhouse environments, iron (Fe) bioavailability is significantly reduced, creating a critical challenge for plant growth. Factors such as rapid oxidation of Fe2+ to Fe3+, high pH, alkalinity, and phosphate-rich fertilizers contribute to Fe deficiency, adversely affecting essential physiological processes like photosynthesis and chlorophyll synthesis. This deficiency hampers crop yields and quality, creating a pressing need for a solution that enhances Fe availability in these controlled environments.

The Technology

This invention introduces a biotechnological approach using siderophore-producing bacteria (SPB) to enhance Fe availability in soilless greenhouse systems. SPBs produce siderophores, which chelate Fe3+ and convert it into a more absorbable form for plants. After screening 1,044 bacterial isolates, 12 strains with high siderophore production were identified, offering a sustainable solution to iron deficiency. These strains were genomically analyzed to identify key genes involved in siderophore production, providing targeted and effective options for biostimulant companies.

Commercial Applications

• Greenhouse crop production in soilless media
• Development of biostimulants for enhanced iron uptake
• Sustainable agriculture practices
• Use in horticultural systems with high pH or alkalinity
• Integration into commercial fertilizer products for improved nutrient efficiency

Benefits/Advantages

• Enhances iron availability in iron-deficient growing environments
• Supports plant physiological processes such as photosynthesis and chlorophyll synthesis
• Utilizes natural bacterial capabilities for a sustainable, eco-friendly solution
• Compatible with existing soilless greenhouse systems and practices
• Potential to improve crop yields and quality in controlled environments