Crop Nutrient Sensing via Gene Expression Manipulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current technologies fail to effectively sense and utilize nitrogen (N) and water (W) interactions to enhance crop production on marginal soils, which are limited in both N and W, posing a challenge for increasing food production to feed a growing global population.
Innovation Solution
The disclosure identifies mechanisms for N and W sensing in crops, specifically using rice as an example, and provides methods and compositions to determine and manipulate gene expression related to N/W interactions, enabling optimization of plant biomass and yield in low-N and arid conditions by identifying and altering the expression of genes such as LOC_Os10g09240, LOC_Os12g29400, LOC_Os05g31020, LOC_Os03g57240, and LOC_Os01g51360.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional crop production methods are used on marginal soils with low nitrogen and water availability, then crop yield and biomass are limited, but increasing nitrogen and water input is not feasible due to resource constraints and environmental concerns
Solution Approach 1:
The patent changes the physiological parameters of plants by manipulating gene expression (particularly ABA-responsive genes and transcription factors) to alter how plants sense and respond to nitrogen and water signals. This allows plants to maintain high productivity under low nutrient conditions by changing their internal sensing thresholds and response mechanisms rather than increasing external inputs
Solution Approach 2:
The patent replaces the mechanical/physical approach of increasing nitrogen and water application with a biological/molecular approach using gene expression manipulation. By substituting chemical inputs with genetic control mechanisms, the system achieves improved yield without proportionally increasing substance inputs
2Adaptability or versatility
If breeding or engineering crops adapted to soils poor in both nitrogen and water is pursued, then crop production on marginal soils can be improved, but the underlying sensing mechanisms are not well understood
Solution Approach 1:
The patent employs feedback mechanisms by using gene expression analysis to monitor plant responses to nitrogen and water treatments. By measuring expression levels of specific genes (such as ABA-responsive genes) and using this information to guide further breeding or engineering decisions, the system creates a closed-loop approach that reduces information loss about sensing mechanisms
Solution Approach 2:
The patent introduces gene expression profiles as an intermediary between environmental conditions (nitrogen and water availability) and plant growth responses. These expression profiles serve as measurable mediators that reveal the underlying sensing mechanisms, bridging the gap between external conditions and internal plant responses
Data Source
AI summary
Provided are methods and mRNA expression chips for identifying genes that are defined by certain nitrogen and water content relationships in soil. The genes can be up or down regulated under low nitrogen or arid conditions to increase the yield or biomass of crops.