Introduction
What is the term for a biotic interaction were both partners benefit each other?
Mutualism
What is the first defence layer encountered by pathogens?
Pre-induced physical barriers - Cuticle and cell wall
How is the interaction between a virulent pathogen and a susceptible host named?
COMPATIBLE interaction
What is the term for a pathogenic molecule that promotes host-infection?
Effector
What is the difference between gram - and gram + bacteria?
Gram + = Lypopolysaccharide (LPS) layer
Why are there so many Irish descendants in the USA?
Examples of inducible plant defence responses
-Reinforcement cell wall
-Oxidative burst
-Production of toxins/antimicrobials
-Host cell death
How do you call a conserved molecule recognized by the plant-immune system?
PAMP: Pathogen associated molecular pattern
Which plant defense is triggered when an effector is recognized by the plant immune system?
ETI: Effector Triggered Immunity
Main bacterial symptomatology?
How does plant pathogenesis impact food security?
- Impact on plant growth
- Reduce yield
- Renders fruits unmarketable
-Disease management is expensive!
How do you call a plant-related molecule recognized by the plant immune system?
DAMP- Damage associated molecular pattern
What is the characteristic plant cell response after an effector is recognized?
Hypersensitive response
Stomata, hydathodes and wounds
What is the term used to describe a pathogen that only feeds from living tissue?
Biotroph
What is the term for the mobile and broad-spectrum defense response activated after the recognition of a pathogen?
SAR: Systemic Acquired Response
Which type of receptors recognize avirulence effectors and triggered ETI?
Nucleotide Binding Receptors (NLRs)
Survival and dissemination
What are the pilars of the disease triangle?
Host Plant - Pathogen - Environment
What are the limitations of the zig-zag model?
Not valid for symbionts nor necrotrophic pathogens