Accumulating evidences of callose priming by indole- 3- carboxylic acid in response to Plectospharella cucumerina

• Published in: Plant signaling & behavior Vol. 14; no. 7; p. 1608107
• Main Authors: Pastor-Fernández, J., Pastor, V., Mateu, D., Gamir, J., Sánchez-Bel, P., Flors, V.
• Format: Journal Article
• Language: English
• Published: United States Taylor & Francis 03.07.2019
• Subjects: Arabidopsis - drug effects; Arabidopsis - immunology; Arabidopsis - microbiology; Ascomycota - drug effects; Ascomycota - physiology; ATL31; Biosynthetic Pathways - drug effects; Disease Resistance - drug effects; Disease Resistance - immunology; Glucans - metabolism; Indole-3-carboxylic acid; Indoles - metabolism; Indoles - pharmacology; induced resistance; PEN1; Plant Diseases - microbiology; Plectosphaerella cucumerina; priming; Short Communication; SYP121; Thiazoles - metabolism; Indole-3-carboxylic acid; priming; induced resistance; SYP121; ATL31; PEN1; Plectosphaerella cucumerina
• ISSN: 1559-2316; 1559-2324; 1559-2324
• DOI: 10.1080/15592324.2019.1608107

Indole-3-carboxylic acid (I3CA) is an indolic compound that induces resistance in Arabidopsis adult plants against the necrotrophic fungus Plectosphaerella cucumerina through primed callose accumulation. In this study, we confirm the relevance of ATL31 and SYP121 genes involved in vesicular trafficking in I3CA priming of defenses and we discard camalexin as a mediator of I3CA-induced resistance (IR) in adult plants. In addition, we observed that an intact I3CA biosynthetic pathway is necessary for I3CA-IR functionality.