Cereal Chem 60:155 - 160.  |  VIEW ARTICLE
Anatomy and Histochemistry of Echinochloa turnerana (Channel Millet) Spikelet.

D. W. Irving. Copyright 1983 by the American Association of Cereal Chemists, Inc. 

Mature spikelets of Echinochloa turnerana were studied by means of scanning electron, fluorescence, and brightfield microscopy to delineate anatomical features and to localize storage components in the seed. The pericarp was a thin, two-cell layered structure and contained anisotrophic substances in cell walls. The cuticle was localized beneath the pericarp, and in the mature caryopsis the seed coat had been completely obliterated, as is common in the gramineae. The aleurone was a layer of thick-walled cells. Beneath the embryo, at the base of the fruit, were large aleurone transfer cells and a pigment strand. Embryo morphology was typical of cereal grains. The scutellum, coleorhiza, and coleoptile contained protein bodies, carbohydrate, and small vacuoles. The starchy endosperm contained nearly spherical starch granules, lipid, and protein.