found: Lawrence, E. Henderson's dict. of biological terms, 1995:under photoreceptor (molecule sensitive and responding to light, such as rhodopsin in retina, chlorophyll in plants)
found: Encyc. of molecular biology, 1994:under photoreceptor (known photoreceptors include: bacteriochlorophyll, bacteriorhodopsin, chlorophyll, cryptochrome, phytochrome, protochlorophyll, rhodopsin, and certain carotenoid, biliprotein, flavoprotein and haem pigments)
found: Blum, D. The role of red and blue light in leaf and cotyledon expansion, 1998:leaf 12 ("Chlorophyll, which absorbs red and blue light, is by far the most abundant photoreceptor in plants.")
