Developmental Expression of a Catalase Inhibitor in Maize 1

AUTOR(ES)

Sorenson, John C.

RESUMO

The expression of an endogenous catalase inhibitor has been studied during development of Zea mays. In the 3-day seedling, the inhibitor is expressed primarily in the scutellum and in the aleurone layer of the endosperm. These tissues also show the highest catalase activity at this stage. Inhibitor expression has also been studied temporally in the scutellum, roots, and shoot over the first 12 days of germination. Inhibitor expression shows an inverse relationship with catalase activity in the scutellum and in the shoot. The relationship is less rigid in the root, due probably to the low levels of inhibitor found in that tissue. The role of the inhibitor in catalase regulation is discussed.

Documentos Relacionados

• Biochemical Characterization of a Catalase Inhibitor from Maize 1
• Developmental Expression of Genetically Defined Peptidases in Maize 1
• Genetic regulation of the catalase developmental program in maize scutellum: Identification of a temporal regulatory gene
• Promoter elements required for developmental expression of the maize Adh1 gene in transgenic rice.
• Cell-type-specific gene expression and acatalasemic peroxisomes in a null Cat2 catalase mutant of maize