Highlights•Salicylic acid (SA) is a plant defense hormone with critical roles in PTI, ETI and
SAR.•Induction of SA synthesis is orchestrated via complex transcriptional regulation of …

This article is part of the Distinguished Review Article Series in Conceptual and
Methodological Breakthroughs in Molecular Plant-Microbe Interactions. Salicylic acid (SA) is …

The phytohormone salicylic acid (SA) controls biotic and abiotic plant stress responses.
Plastid-produced chorismate is a branch-point metabolite for SA biosynthesis. Most …

Studies with model plants such as Arabidopsis thaliana have revealed that phytohormones
are central regulators of plant defense. The intricate network of phytohormone signaling …

Plant hormones play a vital role in promoting growth, development and metabolism of the
plant, as well as act as a protector against various environmental stresses. In particular …

Salicylic acid (SA) is an important phytohormone mediating both local and systemic defense
responses in plants. Despite over half a century of research, how plants biosynthesize SA …

Salicylic acid (SA) is a key plant hormone required for establishing resistance to many
pathogens. SA biosynthesis involves two main metabolic pathways with multiple steps: the …

Systemic acquired resistance (SAR) is an induced immune mechanism in plants. Unlike
vertebrate adaptive immunity, SAR is broad spectrum, with no specificity to the initial …

Glutamate (Glu) is a versatile metabolite and a signaling molecule in plants. Glu
biosynthesis is associated with the primary nitrogen assimilation pathway. The conversion …

Until recently, most studies on the role of hormones in plant-pathogen interactions focused
on salicylic acid (SA), jasmonic acid (JA), and ethylene (ET). It is now clear that pathogen …