1. Damage on plants activates Ca 2+ -dependent metacaspases for release of immunomodulatory peptides
- Author
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Kris Gevaert, Patrick Willems, Thomas Boller, Debbie Rombaut, Frank Van Breusegem, Benjamin Pavie, Álvaro Daniel Fernández-Fernández, Robert P. Kumpf, An Staes, Jonah Nolf, Tim Hander, Robin Pottie, Sebastian Bartels, Amanda Gonçalves, Simon Stael, Panfeng Yao, and Hendrik Schatowitz
- Subjects
0106 biological sciences ,0301 basic medicine ,chemistry.chemical_classification ,Multidisciplinary ,biology ,Peptide ,biology.organism_classification ,01 natural sciences ,Cysteine protease ,Cell biology ,Elicitor ,03 medical and health sciences ,030104 developmental biology ,chemistry ,Extracellular ,Arabidopsis thaliana ,Protein precursor ,Peptide sequence ,Intracellular ,010606 plant biology & botany - Abstract
Rapid response to tissue damage Damaged plants are susceptible to microbial attack. In response to physical damage, plants proactively generate signal peptides to activate their immune systems. Hander et al. examined wound responses in the model plant Arabidopsis thaliana . They identified a metacaspase that releases an immunomodulatory signal peptide from its precursor form within 30 seconds of the damage. The metacaspase itself was activated by a burst of calcium released by tissue damage. Science , this issue p. eaar7486
- Published
- 2019
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