Vital Autofluorescence: Application to the Study of Plant Living Cells

Table 3

Pollen biosensors.

Plant species	Colour of pollen autofluorescence	Prevailing fluorophore	Indicator reaction
Hippeastrum hybridum L. (Herb), knight’s star (Amaryllidaceae)	Blue-green	Flavins, phenols	Shifts in the fluorescence maxima and intensity at pollen-pistil or pollen-pollen interactions and neurotransmitters additions [8, 16, 17, 19, 21, 23]
Philadelphus grandiflorus, wild mock-orange (Hydrangeaceae)	Yellow-orange	Carotenoids, azulenes, anthocyanins	Shifts in the fluorescence maxima and intensity after ozone or other reactive oxygen species treatment [26–28]
Knautia arvensis (L.) Coult., field scabious (Dipsacaceae)	Green	Anthocyanins	Shifts in the fluorescence intensity at pollen-pollen interactions [20, 21]