Summary
Surface and intracellular NLR receptors detect pathogen molecules and trigger the hypersensitive response.
In depth
PRRs at the cell surface (such as FLS2 detecting flagellin) trigger PTI; NLR proteins inside cells detect effectors and trigger ETI. Gene-for-gene interactions explain resistance genes.
Pathogen effectors suppress basal defence; NLRs 'guard' targeted plant proteins and trigger hypersensitive cell death that walls off the pathogen. Plants have no adaptive immune cells but have RNA silencing and systemic signals.
Remember: resistance genes (R genes) are major targets for breeding.
Frequently asked questions
What is Plant Immunity Receptors?
Surface and intracellular NLR receptors detect pathogen molecules and trigger the hypersensitive response.
Which area of biology covers Plant Immunity Receptors, and how advanced is it?
Plant Immunity Receptors is one of the 56 topics in Plant Biology. It is rated Advanced, so it suits learners who want specialist depth. Related topics in this area include Plant Defence Responses, Abscisic Acid and Drought, Root Nodules and Symbiosis.
Can you give an example of Plant Immunity Receptors?
Breeding R genes into wheat for rust resistance.
What should I learn before Plant Immunity Receptors?
Work through the Beginner topics in Plant Biology first, such as Plant Kingdom, Photosynthesis, Chlorophyll, then return to Plant Immunity Receptors. Advanced topics assume the Intermediate vocabulary.
What topics are related to Plant Immunity Receptors?
The closest topics to Plant Immunity Receptors are Plant Defence Responses, Abscisic Acid and Drought, Root Nodules and Symbiosis, Gravitropism. Comparing them side by side is a good way to see how the ideas connect.
How can I check that I understand Plant Immunity Receptors?
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Plant Immunity Receptors. To practise the whole of Plant Biology, use the Plant Biology quiz.
How is Plant Immunity Receptors different from Plant Defence Responses?
Plant Immunity Receptors: Surface and intracellular NLR receptors detect pathogen molecules and trigger the hypersensitive response. Plant Defence Responses: Plants use thorns, toxins, jasmonate signalling and systemic acquired resistance against herbivores and pathogens. Read both side by side and note what each one explains.
How should I study Plant Immunity Receptors step by step?
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Plant Defence Responses and explain the difference aloud. Finally, take the Plant Biology quiz and come back to this page for any question you miss.