1st last years exam

Question 1

pathogenicity factors

Answer 1

necessary for a pathogen to cause disease on certain species of host plant

Question 2

Virulence factors

Answer 2

necessary for or enhancing the ability of a pathogen to cause disease on a certain cultivar, cariety, or ecotype of the host plant

Question 3

Avirulence

Answer 3

Pathogen components used by the host plant recognize the pathogen through resistance genes