Developmental Expression of a Catalase Inhibitor in Maize
نویسندگان
چکیده
منابع مشابه
Developmental expression of a catalase inhibitor in maize.
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 ...
متن کاملBiochemical characterization of a catalase inhibitor from maize.
Some biochemical properties of the catalase inhibitor purified from maize scutella are described. The inhibitor is heat-labile and its activity is destroyed by trypsin, indicating that it is a protein. It does not appear to be a lectin nor does the inhibition involve proteolysis. The active inhibitor is a dimer with each subunit having a molecular weight of 5600 as determined by sodium dodecyl ...
متن کاملGenetic regulation of the catalase developmental program in maize scutellum: Identification of a temporal regulatory gene.
Genetic and biochemical analyses suggest that the developmental program of catalase (H(2)O(2):H(2)O(2) oxidoreductase, EC 1.11.1.6) activity in maize scutella is controlled by a temporal regulatory gene (Car1) that is distinct from the structural genes thus far identified. Recombination data show that Car1 is located about 37 map units from the Cat2 structural gene on the chromosome 1S. Turnove...
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Translational control of photo-induced expression of the Cat2 catalase gene during leaf development in maize.
In dark-grown leaves of Zea mays, the catalase (H2O2:H2O2 oxidoreductase; EC 1.11.1.6; CAT) isozyme CAT-2 is absent. With continuous white light, CAT-2 protein levels increase (due to de novo synthesis) and plateau after 24 hr. When total poly(A)+ RNA (mRNA), polysomes, or isolated polysomal mRNA from light- and dark-treated leaves was translated in vitro, CAT-2 was detected only among the ligh...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1976
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.57.3.351