2 The resistance of host plants植物的抗病性 (1)Phenotypic Types of resistance Escape Tolerance Resistance Immune 免疫性 Hypersensitive过敏性( Necrotic spot坏死斑点) - Susceptible感病性 Mechanism of resistance Resistance to penetration Resistance to expanding2 The Resistance of Host Plants 植物的抗病性 (1) Phenotypic Types of resistance • Escape •Tolerance • Resistance - Immune 免疫性 - Hypersensitive 过敏性（ Necrotic spot 坏死斑点） - Susceptible 感病性 Mechanism of resistance: • Resistance to penetration • Resistance to expanding