Article
Gamma-zeins are essential for endosperm modification in quality protein maize.
Proceedings of the National Academy of Sciences of the United States of America - 20 Jul 2010
Wu Yongrui, Holding David R, Messing Joachim
Abstract excerpt
Essential amino acids like lysine and tryptophan are deficient in corn meal because of the abundance of zein storage proteins that lack these amino acids. A natural mutant, opaque 2 (o2) causes reduction of zeins, an increase of nonzein proteins, and as a consequence, a doubling of lysine levels. However, o2's soft inferior kernels precluded its commercial use. Breeders subsequently overcame kernel softness,...
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