Signaling cross-talk in plant disease resistance

• Published in: Plant science (Limerick) Vol. 207; pp. 79 - 87
• Main Authors: Derksen, Holly, Rampitsch, Christoph, Daayf, Fouad
• Format: Journal Article
• Language: English
• Published: Ireland Elsevier Ireland Ltd 01.06.2013
• Subjects: abiotic stress; Abscisic acid; Abscisic Acid - genetics; Abscisic Acid - metabolism; Arabidopsis; crops; Cyclopentanes; Cyclopentanes - metabolism; Defense signaling; disease control; Disease Resistance; Ethylene; Gene Expression Regulation, Plant; genetics; immunology; Jasmonic acid; metabolism; microbiology; Oxylipins; Oxylipins - metabolism; pathogens; Plant Diseases; Plant Diseases - immunology; Plant Diseases - microbiology; Plant Growth Regulators; Plant Growth Regulators - genetics; Plant Growth Regulators - metabolism; Plant Physiological Phenomena; Plants; Plants - immunology; Plants - microbiology; researchers; Salicylic Acid; Salicylic Acid - metabolism; Signal Transduction; Abscisic acid; Salicylic acid; Disease resistance; Jasmonic acid; Defense signaling; Ethylene
• ISSN: 0168-9452; 1873-2259; 1873-2259
• DOI: 10.1016/j.plantsci.2013.03.004

Hormone signaling crosstalk plays a major role in plant defense against a wide range of both biotic and abiotic stresses. While many reviews on plant-microbe interactions have well described the general trends of signaling pathways in shaping host responses to pathogens, few discussions have considered a synthesis of positive versus negative interactions among such pathways, or variations in the signaling molecules themselves. This review deals with the interaction trends between salicylic, jasmonic, and abscisic acids in the signaling pathways, as well as exceptions to such trends. Here we focused on antagonistic versus cooperative interactions between salicylic and jasmonic acids, two major disease resistance signaling molecules, and some interactions with abscisic acid, a known abiotic stress hormone, and another player in plant defense mechanisms. We provide a set of examples materializing either antagonism or cooperation for each interaction between two pathways, thereby showing the trends and pinpointing the exceptions. Such analyses are practical for researchers working on the subject and essential for a better exploitation of the data already available in plant disease resistance signaling, both in Arabidopsis and crop species, toward the development of better disease management strategies for economically important crops.