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The receptor kinase FER is a RALF-regulated scaffold controlling plant immune signaling

2017; American Association for the Advancement of Science; Volume: 355; Issue: 6322 Linguagem: Inglês

10.1126/science.aal2541

1095-9203

Martin Stegmann, Jacqueline Monaghan, Elwira Smakowska‐Luzan, Hanna Rövenich, Anita Lehner, Nicholas Holton, Youssef Belkhadir, Cyril Zipfel,

Plant pathogens and resistance mechanisms

Small peptides allow rapid responses RALFs (rapid alkalinization factors), a family of small peptides in plants, are produced in response to rapidly changing conditions. Stegmann et al. studied the agility and diversity built into this signaling network. Some RALFs, such as RALF23 and its relative RALF33, are activated by proteolytic cleavage. Others, such as RALF32, are not. RALF23 and RALF33 are called into play after a pathogen triggers immune responses. RALF32, on the other hand, regulates seedling growth. All three of these RALFs use the same receptor kinase, which can interact with other signaling components. Thus, plant responses can be fine-tuned by rapid release of peptides. Science , this issue p. 287