@article{e16a772c8fa9400e828b707291e284b0,
title = "Natural variation for unusual host responses and flagellin-mediated immunity against Pseudomonas syringae in genetically diverse tomato accessions",
abstract = "The interaction between tomato and Pseudomonas syringae pv tomato (Pst) is a well-developed model for investigating the molecular basis of the plant immune system. There is extensive natural variation in Solanum lycopersicum (tomato) but it has not been fully leveraged to enhance our understanding of the tomato–Pst pathosystem. We screened 216 genetically diverse accessions of cultivated tomato and a wild tomato species for natural variation in their response to three strains of Pst. The host response to Pst was investigated using multiple Pst strains, tomato accessions with available genome sequences, reactive oxygen species (ROS) assays, reporter genes and bacterial population measurements. The screen uncovered a broad range of previously unseen host symptoms in response to Pst, and one of these, stem galls, was found to be simply inherited. The screen also identified tomato accessions that showed enhanced responses to flagellin in bacterial population assays and in ROS assays upon exposure to flagellin-derived peptides, flg22 and flgII-28. Reporter genes confirmed that the host responses were due primarily to pattern recognition receptor-triggered immunity. This study revealed extensive natural variation in tomato for susceptibility and resistance to Pst and will enable elucidation of the molecular mechanisms underlying these host responses.",
keywords = "NLR-triggered immunity, PRR-triggered immunity, bacterial speck disease, flagellin, natural variation, pattern-triggered immunity (PTI), plant immunity, tomato",
author = "Robyn Roberts and Samantha Mainiero and Powell, {Adrian F.} and Liu, {Alexander E.} and Kai Shi and Hind, {Sarah R.} and Strickler, {Susan R.} and Alan Collmer and Martin, {Gregory B.}",
note = "Funding Information: We thank Dani Zamir, Dilip Panthee, Sam Hutton, Martha Mutschler, Jim Giovannoni, David Francis and Mathilde Causse for providing seeds. We thank Barbara Kunkel for the DC3000ΔaldA, ΔaldB and ΔaldAB strains and Brian Swingle for the DC3000ΔiaaL strain. We thank Noam Eckshtain-Levi for supporting experiments, Sam Wolfe, Nick Glynos and Nicole Avellanet for glasshouse assistance, and Brian Bell, Jay Miller, Brittany Fletcher and Nick Vail for plant care. Funding was provided by National Science Foundation grant no. IOS-1546625 (GBM, ARC, SRS). KS was partially supported by the China Scholarship Council and the National Natural Science Foundation of China (31822046 and 31772355). Funding Information: We thank Dani Zamir, Dilip Panthee, Sam Hutton, Martha Mutschler, Jim Giovannoni, David Francis and Mathilde Causse for providing seeds. We thank Barbara Kunkel for the DC3000∆aldA, ∆aldB and ∆aldAB strains and Brian Swingle for the DC3000∆iaaL strain. We thank Noam Eckshtain-Levi for supporting experiments, Sam Wolfe, Nick Glynos and Nicole Avellanet for glasshouse assistance, and Brian Bell, Jay Miller, Brittany Fletcher and Nick Vail for plant care. Funding was provided by National Science Foundation grant no. IOS-1546625 (GBM, ARC, SRS). KS was partially supported by the China Scholarship Council and the National Natural Science Foundation of China (31822046 and 31772355). Publisher Copyright: {\textcopyright} 2019 The Authors. New Phytologist {\textcopyright} 2019 New Phytologist Trust",
year = "2019",
month = jul,
doi = "10.1111/nph.15788",
language = "English (US)",
volume = "223",
pages = "447--461",
journal = "New Phytologist",
issn = "0028-646X",
publisher = "Wiley-Blackwell",
number = "1",
}