منابع مشابه
Plant Disease Resistance Genes.
In "gene-for-gene" interactions between plants and their pathogens, incompatibility (no disease) requires a dominant or semidominant resistance (R) gene in the plant, and a corresponding avirulence (Avr) gene in the pathogen. Many plant/pathogen interactions are of this type. R genes are presumed to (a) enable plants to detect Avr-gene-specified pathogen molecules, (b) initiate signal transduct...
متن کاملRapidly evolving R genes in diverse grass species confer resistance to rice blast disease.
We show that the genomes of maize, sorghum, and brachypodium contain genes that, when transformed into rice, confer resistance to rice blast disease. The genes are resistance genes (R genes) that encode proteins with nucleotide-binding site (NBS) and leucine-rich repeat (LRR) domains (NBS-LRR proteins). By using criteria associated with rapid molecular evolution, we identified three rapidly evo...
متن کاملIdentification of three putative signal transduction genes involved in R gene-specified disease resistance in Arabidopsis.
The RPS5 disease resistance gene of Arabidopsis mediates recognition of Pseudomonas syringae strains that possess the avirulence gene avrPphB. By screening for loss of RPS5-specified resistance, we identified five pbs (avrPphB susceptible) mutants that represent three different genes. Mutations in PBS1 completely blocked RPS5-mediated resistance, but had little to no effect on resistance specif...
متن کاملElevating crop disease resistance with cloned genes
Essentially all plant species exhibit heritable genetic variation for resistance to a variety of plant diseases caused by fungi, bacteria, oomycetes or viruses. Disease losses in crop monocultures are already significant, and would be greater but for applications of disease-controlling agrichemicals. For sustainable intensification of crop production, we argue that disease control should as far...
متن کاملPlant Disease Resistance Genes: Function Meets Structure.
The coevolution of interacting plants and microbes has given rise to a diverse array of exchanged signals and responses. Microbes that elicit a host response can be met variously with hospitable acceptance (as is the case with symbionts such as nitrogen-fixing Rhizobium bacteria), with tardy recognition and moderately effective defenses (as for most interactions that result in disease), or with...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 1994
ISSN: 1040-4651,1532-298X
DOI: 10.1105/tpc.6.4.461