IPD103 Polypeptides Broaden Pest Control Spectrum
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Solution Overview
Problem
Current genetically engineered crops that produce pesticidal proteins from Bacillus strains provide resistance only to a narrow range of insect pests, and there is a need for new pesticidal proteins with broader insecticidal activity, especially against pests that have developed resistance to existing insecticides.
Innovation Solution
The development of novel genes encoding pesticidal proteins, specifically the IPD103 polypeptides, which can be used to transform bacteria, plants, and plant cells, providing them with pesticidal activity against a variety of insect pests, including Lepidopteran, Coleopteran, nematode, fungi, and Dipteran pests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If genetically engineered crops produce pesticidal proteins from Bacillus strains, then insect resistance is provided, but the range of insect pests controlled is narrow
Solution Approach 1:
The patent segments the pesticidal function into multiple distinct protein families (Cry, Cyt, Vip) with different insecticidal specificities. Each protein targets different insect orders or families, allowing the system to control a broader spectrum of pests through combinatorial expression of multiple segmented functional units rather than relying on a single broad-spectrum protein
Solution Approach 2:
The patent creates a universal pesticidal system where a single genetic engineering platform can express multiple types of pesticidal proteins from different Bacillus strains. The system is designed to accommodate various protein families with different target specificities, making it universally applicable to control diverse insect pests including Lepidoptera, Coleoptera, Diptera, and Hymenoptera
2Reliability
If existing insecticides are used repeatedly, then pest control is achieved, but insect resistance to insecticides develops
Solution Approach 1:
The patent changes the molecular parameters of pest control by switching from chemical insecticides to biologically derived pesticidal proteins with different modes of action. The Cry, Cyt, and Vip proteins bind to different receptors and initiate different toxic mechanisms in insects, fundamentally changing the control parameters to bypass resistance developed against chemical insecticides
Solution Approach 2:
The patent employs composite pesticidal strategies by combining multiple protein types (Cry for Lepidoptera, Cyt for Coleoptera, Vip for Diptera and Hymenoptera) within single transgenic plant systems. This composite approach creates synergistic pest control where the combination of proteins with different specificities and mechanisms provides more durable and reliable protection than any single protein alone
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.