RACK1A Modulation for Plant Stress Resistance
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Solution Overview
Problem
Current methods for generating high salt-resistant plants are labor-intensive and may have unintended genetic consequences, and there is a need for effective compounds to modulate plant responses to environmental stresses like high salt conditions without significant side effects.
Innovation Solution
Development of compounds such as SD-29 and SD-29-12, which target the RACK1A protein to prevent or induce phosphorylation, thereby modulating plant resistance or susceptibility to environmental stresses, including high salt, heat, and drought, by interacting with the protein's phosphorylation pocket and affecting stress-related pathways.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If selective breeding methods are used to generate high salt-resistant plants, then genetic diversity and desirable traits can be improved, but the process becomes labor-intensive and may result in heterogeneous genetic components that do not reliably pass on advantageous traits
Solution Approach 1:
The patent replaces the mechanical selective breeding process with a chemical system. Small molecules are designed to directly interact with and modulate the activity of RACK1A protein, thereby inducing stress resistance without requiring generational breeding or genetic manipulation. This chemical approach substitutes the time-consuming mechanical selection process with direct molecular intervention.
Solution Approach 2:
The patent changes the physiological parameters of the plant by introducing small molecules that bind to RACK1A protein. This binding modulates the phosphorylation status of RACK1A, thereby altering its function in stress signaling pathways. The parameter change occurs at the molecular level rather than requiring genetic changes across generations.
2Reliability
If genetic modification methods are used to create transgenic crops with improved properties, then specific economic and agronomic traits can be engineered, but this raises concerns about herbicide resistance spread, environmental impact, and public acceptance
Solution Approach 1:
The patent introduces small molecules as intermediaries that bind to RACK1A protein to modulate its activity. These small molecules serve as a safer alternative to genetic modification, achieving the desired physiological effect (stress resistance) without introducing transgenic elements that could spread to non-target species or create herbicide-resistant weeds.
Solution Approach 2:
The patent uses small molecules that can be applied externally and are metabolized or degraded over time, rather than creating permanent genetic modifications. This approach allows for temporary, controlled intervention that does not result in persistent transgenic changes that could spread environmentally.
3Productivity
If no chemical intervention is used, then plants naturally respond to environmental stresses, but crop loss due to environmental stresses remains substantial
Solution Approach 1:
The patent applies small molecules to plants before or during stress exposure to preemptively activate protective pathways. By modulating RACK1A activity in advance, the plant is primed to better withstand upcoming environmental stresses, thereby preventing crop loss rather than responding after damage occurs.
Solution Approach 2:
The patent converts the harmful effect of environmental stress into a beneficial outcome by using small molecules to activate protective signaling pathways. The stress conditions that would normally cause crop loss are transformed into opportunities for the plant to activate enhanced protective mechanisms through RACK1A modulation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
These compounds effectively induce resistance to environmental stresses by preventing reactive oxygen species accumulation and sodium ion uptake, enhancing superoxide dismutase activity, and maintaining plant viability under stressful conditions, while also potentially serving as herbicides by increasing susceptibility to stress.
Implementation Method 1
prevent or induce phosphorylation, thereby modulating plant resistance or susceptibility to environmental stresses
Data Source
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AI summary
Compounds and methods are described herein that are effective to modulate plant response (e.g., plant susceptibility) to environmentally-induced stress. The compounds and methods described herein advantageously may be used to modulate environmental stress resistance in a wide variety of plants. Environmental stresses include, for example, high light intensity (UV exposure), temperature (e.g., high heat), high soil salinity, and low soil moisture (e.g., drought). As used herein, environmental stresses include any conditions that result in increased generation of reactive oxygen species (ROS) and accumulation of ROS in the plant cells. The compounds described herein that are effective to modulate resistance to the stress prevent, directly or indirectly, or increase phosphorylation of Tyr 248 of the RACK1A protein.