منابع مشابه
Disease Resistance Gene Analogs (RGAs) in Plants
Plants have developed effective mechanisms to recognize and respond to infections caused by pathogens. Plant resistance gene analogs (RGAs), as resistance (R) gene candidates, have conserved domains and motifs that play specific roles in pathogens' resistance. Well-known RGAs are nucleotide binding site leucine rich repeats, receptor like kinases, and receptor like proteins. Others include pent...
متن کاملCompromised disease resistance in saponin-deficient plants.
Saponins are glycosylated plant secondary metabolites found in many major food crops [Price, K. R., Johnson, I. T. & Fenwick, G. R. (1987) CRC Crit. Rev. Food Sci. Nutr. 26, 27-133]. Because many saponins have potent antifungal properties and are present in healthy plants in high concentrations, these molecules may act as preformed chemical barriers to fungal attack. The isolation of plant muta...
متن کاملEngineering plants with increased disease resistance: how are we going to express it?
Precise control of transgene expression is pivotal to the engineering of plants with increased disease resistance. Many early attempts to boost disease resistance used constitutive overexpression of defence components but frequently this resulted in poor quality plants. It is now clear that the extensive cellular reprogramming associated with defence will reduce yields if uncontrolled defence r...
متن کاملEngineering plants with increased disease resistance: what are we going to express?
To engineer plants with increased and durable disease resistance using transgenic technologies we must address two questions. First, what gene or genes do we want to express to improve disease resistance, and second, how are we going to express these genes so that crop yields are actually increased? Emerging technologies are providing us with a plethora of candidate genes that might lead to enh...
متن کاملGenetic Engineering of Plants for Resistance to Viruses
Genetic engineering has been identified as one key approach to increasing agricultural production and reducing losses due to biotic and abiotic stresses in the field and in storage (Sairam and Prakash, 2005; Yuan et. al., 2011). This chapter primarily deals with resistance to viral diseases. It is therefore very important that anyone embarking on a research project to genetically engineer plant...
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ژورنال
عنوان ژورنال: Nature
سال: 2001
ISSN: 0028-0836,1476-4687
DOI: 10.1038/35081200