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Comparisons of Lysine and Zein and Nonzein Protein Contents in Immature and Mature Maize Endosperm Mutants 1
Author(s) -
Dalby A.,
Tsai C. Y.
Publication year - 1975
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1975.0011183x001500040018x
Subject(s) - endosperm , mutant , biology , starch , lysine , storage protein , botany , maturity (psychological) , biochemistry , horticulture , amino acid , gene , psychology , developmental psychology
Maize ( Zea mays L.) endosperm mutant shrunken ‐4 ( sh 4 ) was compared with nine other starch mutants and three “high‐lysine” mutants for lysine and zein and nonzein protein content at 22 days after pollination and at maturity. The sh 4 mutant was unique in showing no zein at 22 days and only 10% of the normal value at maturity. Nonzein protein and lysine/kernel were extremely low at maturity in sh 4 , showing almost no increase after 22 years. The effects of sh 4 on protein content appear to be an exaggerated form of those produced by the highlysine mutant opaque ‐7.