Can the hypersensitive response occur as part of PAMP-Triggered Immunity (PTI) as well as Effector-Triggered Immunity (ETI)?

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Arbind K. Choudhary

Dear @Ruby Metzner

The ubiquity of hypersensitive response among higher plants despite its costs suggests that it is an extremely effective component of the plant immune system. Please check the following links, and attached pdfs; hope, these could be useful to you.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6640183/

https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/hypersensitive-response

Alex Ignatov

It is worth to read: Yao Luo, Katherine S. Caldwell, Tadeusz Wroblewski, Michael E. Wright, Richard W. Michelmore, Proteolysis of a Negative Regulator of Innate Immunity Is Dependent on Resistance Genes in Tomato and Nicotiana benthamiana and Induced by Multiple Bacterial Effectors , The Plant Cell, Volume 21, Issue 8, August 2009, Pages 2458–2472, https://doi.org/10.1105/tpc.107.056044

Ruby Metzner The simplest answer: Naito K, Ishiga Y, Toyoda K, Shiraishi T, Ichinose Y. N-terminal domain including conserved flg22 is required for flagellin-induced hypersensitive cell death in Arabidopsis thaliana. Journal of General Plant Pathology. 2007 Aug;73(4):281-5. Flg22 is one of the model PAMPs.