AtRTP5 Gene Knockdown for Phytophthora Resistance
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Solution Overview
Problem
Current methods for controlling crop diseases caused by Phytophthora bacteria, such as tobacco black shank, are limited by the emergence of agrochemical resistance and the lack of understanding of negative regulatory factors for plant immunity, which are crucial for developing disease-resistant crop varieties.
Innovation Solution
The use of the AtRTP5 gene as a negative regulator to interfere with plant hormone immune signaling pathways, enhancing plant resistance to Phytophthora by reducing its expression through genetic engineering, specifically in Arabidopsis thaliana and tobacco.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If agrochemicals are used to control Phytophthora diseases, then disease control effectiveness is improved, but pathogen resistance to agrochemicals emerges
Solution Approach 1:
The patent converts the harmful effect of pathogen resistance to agrochemicals by identifying and utilizing negative regulatory factors in plant immunity. Instead of continuing to rely on agrochemicals that face resistance issues, the invention leverages the plant's own immune system regulation mechanisms to develop resistant varieties, thereby converting the limitation of chemical control into an opportunity for biological control solutions.
2Reliability
If disease-resistant varieties are developed through traditional breeding, then long-term resistance is improved, but the process time and resource consumption increase
Solution Approach 1:
The patent applies parameter changes by targeting specific genetic parameters - the negative regulatory factors of plant immunity. Instead of traditional whole-genome breeding approaches that take generations to stabilize, this invention focuses on modifying specific genes (such as NPR1, EDS1, PAD4, and others listed in the patent) that regulate immune responses. This targeted approach to genetic parameter modification accelerates the development of resistant varieties while maintaining long-term effectiveness.
3Reliability
If negative regulatory factors for plant immunity are utilized, then plant resistance to Phytophthora is enhanced, but the understanding and identification of specific mechanisms remains limited
Solution Approach 1:
The patent applies segmentation by dividing the complex plant immune system into specific functional modules represented by individual negative regulatory factors. The patent identifies and categorizes multiple distinct genes and proteins (NPR1, EDS1, PAD4, SAG101, WRKY transcription factors, etc.) that function as separate but coordinated units in immune regulation. This segmented approach allows researchers to study and manipulate specific mechanisms independently, thereby enhancing both plant resistance and mechanistic understanding.
Data Source
AI summary
The use of a negative regulator AtRTP5 for increasing the plant resistance to Phytophthora is disclosed. The AtRTP5 gene negatively regulates the plant resistance to Phytophthora by interfering with a plant hormone immune signaling pathway. The AtRTP5 gene has a nucleotide sequence shown as SEQ ID NO: 1 or a homologous sequence having more than 50% homology with the sequence. The use of a protein encoded by a negative regulator AtRTP5 for increasing the plant resistance to Phytophthora is also disclosed. The plant resistance to Phytophthora is enhanced by reducing the expression of the protein encoded by the AtRTP5 gene with genetic engineering. The protein has an amino acid sequence shown as SEQ ID NO: 2 or a homologous sequence having more than 50% homology with the sequence.