Bioactive peptides as signal molecules in plant defense, growth, and development

摘要: Abstract Until recently, intercellular communication in higher plants was thought to be mediated by the five classes of classical phytohormones i.e. auxins, cytokinins, gibberellins, abscisic acid, and ethylene. Hormone action thus appeared fundamentally different from that animals. This view is changing, however, since over recent years brassinosteroids jasmonates resembling animal steroids prostaglandins, respectively, have been added group chemical messengers plants. Furthermore, there now compelling evidence for existence plant (poly) peptide hormones. The present arsenal endogenous signals includes just four groups hormones involved wound signal transduction, cell proliferation, regulation salt/water homeostasis, systemins, phytosulfokines, enod40, natriuretic peptides, but many more are likely exist. Plants appear possess receptors a plethora signals. These include both peptides as well microbial origin. proteases identified generation larger precursor proteins. article discusses support general role bioactive transduction with emphasis on structure bioactivity themselves.