Fig. 1.7

Fig. 1.7 The fluorescence spectra of Petunia hybrida pollen. A. Clone without anthocyanins, B. Clone with anthocyanins and without azulenes; C. Clone with azulenes and without anthocyanins. A and B. unbroken lines - intact pollen; broken lines - water extracts from pollen (1: 50 w/v); C. intact pollen before any treatm ent (1); or after the removal of the pigments with solvents for 3 h a t first with the 80% acetone (1:50 w/w) (2) and then with benzene (1:50 w/w) (3).