The catalase multi-gene family in Arabidopsis includes three genes encoding individual subunits which associate to form at least six isozymes that are readily resolved by non-denaturing gel electrophoresis. CAT1 and CAT3 map to chromosome 1, and CAT2 maps to chromosome 4. The nucleotide and deduced amino acids sequences of the three coding regions are highly related to each other and to other c...

gene/compound/concentration combination examined. The reThe role of hydrogen peroxide (H2O2) and various antioxidants in the regulation of expression of the three Cat and Gst1 sponse of each gene to each antioxidant compound tested was unique, suggesting that the ability of these compounds to genes of maize (Zea mays L.) has been investigated. Low concentrations of H2O2 appeared to inhibit Cat1...

There is circumstantial evidence implicating reactive oxygen species (ROS) in the highly ordered temporal and spatial regulation of expression of the Cat and Sod antioxidant genes during seed development and germination in maize. In order to understand and provide experimental data for the regulatory role of ROS, the expression patterns of the Cat1, Cat2, Cat3, GstI, Sod3, Sod4, and Sod4A genes...

This paper presents a system for computer-aided thinking. We propose the idea of reflecting the mental world indirectly into a metric space to support such human thinking activities as externalizing and forming new ideas. We use a method that maps text-objects into metric spaces for visualizing a user’s thought space structure. Text-objects imply fragments of a user’s idea, which have several k...

Excess Leu reduces the availability of Ile and Val in pigs likely by reducing absorption of the latter amino acids (AA). Twenty-four crossbred pigs were used to evaluate the effect of excess Leu alone or with surplus Ile and Val on the expression of cationic (b(0),(+)AT and CAT1) and neutral (B(0)AT1) AA transporters in the small intestine, liver, and skeletal muscle. Dietary treatments include...

BACKGROUND Bemisia tabaci MEAM1 (Middle East-Asia Minor 1) feeding alters antioxidative enzyme activity in some plant species. Infestation of B. tabaci nymphs decreases Myzus persicae performance on systemic, but not local leaves of tobacco plants. However, it is unclear if B. tabaci nymphs induced antioxidant activities contributing to the aphid resistance. METHODOLOGY/PRINCIPAL FINDINGS We ...