Host resistance - Mechanism
3 important questions on Host resistance - Mechanism
What usually occurs at the site of an attempted infection?
- A small necrotic spot usually appears.
- It is often macroscopically visible.
- It is often macroscopically visible.
What constitutes immune plants and what happens over time?
- Immune plants restrict the pathogen to few cells.
- Pathogens become confined; plant may grow weaker and reproduce at a low level.
- Pathogens become confined; plant may grow weaker and reproduce at a low level.
What example is given for a hypersensitive response?
- Barley shows hypersensitivity to the powdery mildew fungus, Blumeria graminis f.sp. hordei.
- This results in a primary and secondary immune response.
- This results in a primary and secondary immune response.
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