Contents Preface. Contributors.. ..xvii 1 Anthocvanin function in vegetative organs Jean-Hugues B.Hatier and Kevin S.Gould 1.1 Introduction. 12 Anthocvanins and Stress Responses. 13 Photoprotection」 1 4 Prote ction Ag nst ultraviolet radiation 15 16 Paradigm Shift 10 17 Modulatio n of Signalling Cascades:A New Hypothesis References. 2. 21 Le n and Kevin S.Gould 123 Hypotheses Reluctance to Accept Hypotheses on Defensive Colouration 2 Colour Vision in Animals Anthocyanins and Other Red Pigments.... 41 Olfactory Signals. 2 2.7 Aposematic Colouration.. 2.7.1 Poisonous Plants.... 2.7.2 Thorny plants.… ..26Contents Preface ........................................................................................................................v Contributors.......................................................................................................... xvii 1. Anthocyanin Function in Vegetative Organs.....................................................1 Jean-Hugues B. Hatier and Kevin S. Gould 1.1 Introduction ...................................................................................................1 1.2 Anthocyanins and Stress Responses..............................................................2 1.3 Photoprotection .............................................................................................3 1.4 Protection Against Ultraviolet Radiation.......................................................6 1.5 Free Radical Scavenging ...............................................................................7 1.6 Paradigm Shift.............................................................................................10 1.7 Modulation of Signalling Cascades: A New Hypothesis.............................10 References............................................................................................................12 2. Role of Anthocyanins in Plant Defence ............................................................21 Simcha Lev-Yadun and Kevin S. Gould 2.1 Introduction .................................................................................................21 2.2 Hypotheses ..................................................................................................23 2.3 Reluctance to Accept Hypotheses on Defensive Colouration .....................23 2.4 Colour Vision in Animals............................................................................24 2.5 Anthocyanins and Other Red Pigments.......................................................25 2.6 Olfactory Signals.........................................................................................25 2.7 Aposematic Colouration..............................................................................26 2.7.1 Poisonous Plants ...............................................................................26 2.7.2 Thorny plants ....................................................................................26