@INBOOK{IPB-1497, author = {Yamaguchi, I. and Cohen, J. D. and Culler, A. H. and Quint, M. and Slovin, J. P. and Nakajima, M. and Yamaguchi, S. and Sakakibara, H. and Kuroha, T. and Hirai, N. and Yokota, T. and Ohta, H. and Kobayashi, Y. and Mori, H. and Sakagami, Y.}, title = {{}}, year = {2010}, pages = {9-125}, chapter = {{Plant Hormones}}, journal = {Comprehensive Natural Products II}, editor = {Liu, H.-W. \& Mander, L., eds.}, doi = {10.1016/B978-008045382-8.00092-7}, url = {https://dx.doi.org/10.1016/B978-008045382-8.00092-7}, volume = {4}, abstract = {The definition of a plant hormone has not been clearly established, so the compounds classified as plant hormones often vary depending on which definition is considered. In this chapter, auxins, gibberellins (GAs), cytokinins, abscisic acid, brassinosteroids, jasmonic acid-related compounds, and ethylene are described as established plant hormones, while polyamines and phenolic compounds are not included. On the other hand, several peptides that have been proven to play a clear physiological role(s) in plant growth and development, similar to the established plant hormones, are referred. This chapter will focus primarily on the more recent discoveries of plant hormones and their impact on our current understanding of their biological role. In some cases, however, it is critical to place recent work in a proper historical context.} }