Resistance and susceptibility genes as sources to improve biotic stress tolerance of Cultivated plants

摘要

Diseases cause large problem in agriculture that the growers usually try to overcome by chemical control. udUnfortunately, the amount of applied chemicals increases in every year all over the world. Since the chemicals udhave numerous negative side-effects, the alternative techniques are welcome in crop production. Plenty of studies uddemonstrated that resistance genes regulate plant defense response to pathogen attack and infection. Beside the udinduced expression of resistance genes the disease responsiveness may also depend on plant susceptibility genes, udpresence in host of which is required for success of invasion. Breeding plant varieties integrating resistance genes udor inhibiting the function of susceptibility genes significantly increase the disease resistance. In this manner the udamount of pesticides applied for pathogen control can be reduced and crop production may turn into a much moreudenvironmentally friendly process.