Physiological Actions of Brassinosteroids: An Update.
In general, this overview covers literature from 1999 until early 2003. Topics covered include aspects of the biosynthesis and transport of brassinosteroids, their effects on cell division, expansion, and differentiation, and their effects on whole plants, including source-sink relations and other endogenous interactions. Some interactions with environmental signals are discussed, as well as results that may promise applications in future. Topics that warrant further investigation of the roles of BRs include phenotypic variability, reproductive physiology, senescence, branching, and apical dominance, whereas topics in which possible roles for BRs are relatively unexplored include lignification, phototropism, photoperiodism, and endogenous rhythms.
Sasse
Jenneth M.
JM
School of Resource Management, Institute of Land and Food Resources, The University of Melbourne, Parkville, Victoria, Australia 3010, j.sasse@landfood.unimelb.edu.au