Fig. 2.10

Fig. 2.10 The image in transparent light (1) and the fluorescent images of the pistil stigma of Campanula grandiflora L. and its pollen (shown with the arrows), lying on the stigma surface (2 and 3). Bar = 150 ^m. 3 demonstrates the increased light emission from the pistil after 2-5 min of the addition of pollen grains from the same plant species.