Haem pigments of cytoplasmic particles from non-photosynthetic plant tissues

Keilin (1925) first described the cytochromes in a wide variety of whole tissues from animals and plants.Yakushiji (1935) and Okunuki (1939) later studied the distribution of several cytochromes in higher plants, and, in particular, in algae, from which Yakushiji (1935) extracted cytochrome c.Mann (1938) found that the haematin of non- photosynthetic plant tissues is largely concentrated in the meristematic zones.From the disrupted