IPD073 Polypeptides Broad-Spectrum Pest Resistance
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Solution Overview
Problem
Current genetically engineered crops resistant to insect pests have limited efficacy against a narrow range of pests and can develop resistance, necessitating the need for new pesticidal proteins with different modes of action and broader insecticidal activity.
Innovation Solution
Development of novel nucleic acid molecules encoding IPD073 polypeptides, which can be used to transform bacteria and plants, providing pesticidal activity against Lepidopteran, Coleopteran, Dipteran, and nematode pests, and including methods for detecting these polypeptides and producing transgenic plants with enhanced pest resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If genetically engineered crops produce pesticidal proteins from Bacillus, then insect resistance is enhanced, but the range of effective pest control remains narrow
Solution Approach 1:
The patent introduces novel pesticidal proteins with multiple modes of action that can target different insect orders (Lepidoptera, Coleoptera, Diptera, nematodes) simultaneously. These proteins are designed to work through various mechanisms including pore formation, enzymatic degradation, and disruption of essential biological processes, thereby providing broad-spectrum protection against diverse pest species that feed on different plant tissues and have different feeding behaviors.
Solution Approach 2:
The patent employs proteins with varying molecular weights, structures, and mechanisms of action to address different pest types. By changing the parameters of pesticidal activity (mode of action, target specificity, stability), the invention overcomes the limitation of narrow-spectrum Bt proteins and achieves reliable control across multiple pest categories.
2Reliability
If existing bio-insecticides are used, then pest control is achieved, but insects can develop resistance
Solution Approach 1:
The patent combines multiple pesticidal proteins with different modes of action into a single composition or expression system. This composite approach ensures that insects cannot easily develop resistance to all proteins simultaneously, as each protein targets different physiological pathways. The synergistic effect of multiple proteins extends the duration of effective pest control and delays resistance development.
Solution Approach 2:
The patent utilizes the fact that insects have evolved specific vulnerabilities in their digestive and physiological systems. By designing proteins that exploit these vulnerabilities through diverse mechanisms (protease inhibition, pore formation, enzymatic degradation), the invention converts potential resistance development into an opportunity for creating multi-targeted control strategies that are harder for pests to overcome.
3Adaptability or versatility
If broad-spectrum pesticidal activity is achieved, then more pest types are controlled, but the complexity of the protein composition increases
Solution Approach 1:
The patent divides broad-spectrum pest control into multiple functional protein components, each with a specific mode of action targeting particular pest groups. This segmentation allows for modular design where proteins can be individually optimized and combined based on the specific pest pressure faced, rather than requiring a single complex multi-functional protein.
Solution Approach 2:
The patent merges multiple pesticidal proteins into unified compositions or co-expresses them in transgenic plants. This merging strategy achieves broad-spectrum activity while maintaining manageable complexity through standardized expression systems and formulation protocols, avoiding the need for overly complex individual protein structures.
Data Source
AI summary
Compositions and methods for controlling pests are provided. The methods involve transforming organisms with a nucleic acid sequence encoding an insecticidal protein. In particular, the nucleic acid sequences are useful for preparing plants and microorganisms that possess insecticidal activity. Thus, transformed bacteria, plants, plant cells, plant tissues and seeds are provided. Compositions are insecticidal nucleic acids and proteins of bacterial species. The sequences find use in the construction of expression vectors for subsequent transformation into organisms of interest including plants, as probes for the isolation of other homologous (or partially homologous) genes. The pesticidal proteins find use in controlling, inhibiting growth or killing Lepidopteran, Coleopteran, Dipteran, fungal, Hemipteran and nematode pest populations and for producing compositions with insecticidal activity.