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Potential Selection System for Mutants with Increased Lysine, Threonine, and Methionine in Cereal Crops 1
Author(s) -
Green C. E.,
Phillips R. L.
Publication year - 1974
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/cropsci1974.0011183x001400060015x
Subject(s) - threonine , methionine , lysine , biology , callus , amino acid , biochemistry , homoserine , mutant , amino acid synthesis , botany , serine , gene , phosphorylation , quorum sensing , virulence
Simultaneous addition of lysine and threonine inhibits growth in maize ( Zea mays L.) callus cultures and embryo cultures from several cereals. Methionine or homoserine reverses lysine‐threonine inhibition. Isolation of feedback inhibition resistance mutants is proposed for several cereals by selecting callus or seedlings which grow in the presence of lysine‐threonine. Resulting mutants may be overproducers of lysine, threonine, or methionine.