Comparison of phytohormone signaling mechanisms

Plant hormones are crucial signaling molecules that coordinate all aspects of plant growth, development and defense. A great deal of attention has been attracted from biologists to study the molecular mechanisms for perception and signal transduction of plant hormones during the last two decades. Tremendous progress has been made in identifying receptors and key signaling components of plant hormones. The holistic picture of hormone signaling pathways is extremely complicated, this review will give a general overview of perception and signal transduction mechanisms of auxin, gibberellin, cytokinin, abscisic acid, ethylene, brassinosteroid, and jasmonate.

► Plant hormones are essential for plant growth, development and defense.
► Great progress has been made in identifying receptors and signaling components of phytohormones.
► We compare and discuss signaling mechanisms of auxin, GA, cytokinin, ABA, ethylene, BR and JA.