Plant Pathogens

Question 1

Viral - TMV

Answer 1

Tobacco Mosaic Virus
First virus to be discovered
Movement protein - Mp30
Coat-protein-mediated-resistance

Question 2

PAMP-triggered immunity

Answer 2

Upon pathogen attack, pathogen-associated molecular patterns (PAMPs) activate pattern-recognition receptors (PRRs) in the host, resulting in downstream signalling cascade that leads to PAMP-triggered immunity (PTI)

Question 3

Effector-triggered susceptibility

Answer 3

Virulent pathogens have acquired effectors that suppress PTI, resulting in effector-triggered susceptibility (ETS)

Question 4

Effector-triggered immunity

Answer 4

In turn, plants have an acquired resistance (R) proteins that recognise these attacker-specific effectors, resulting in a secondary immune response called effector-triggered immunity (ETI)

Question 5

Primary defences

Answer 5

Physical barriers

Question 6

Secondary defences

Answer 6

systemic aquired resistance

induced systemic resistance