The discus is a very popular and expensive aquarium fish belonging to the family Cichlidae, genus Symphysodon, formed by three Amazon basin endemic species: Symphysodon aequifasciatus, S. discus and S. tarzoo. The taxonomic status of these fish is very controversial, with a paucity of molecular research on their population genetic structure and species identification. Information on molecular g...

On June 27, 2016, the Minnesota Department of Health (MDH) Public Health Laboratory (PHL) was notified of a suspected Francisella tularensis isolate cultured at a hospital laboratory. The isolate was confirmed as F. tularensis type B at MDH PHL by reverse transcription-polymerase chain reaction, culture, and direct fluorescent antibody testing. Francisella tularensis subspecies tularensis (type...

Four enzymes, namely, the maize C(4)-specific phosphoenolpyruvate carboxylase (PEPC), the maize C(4)-specific pyruvate, orthophosphate dikinase (PPDK), the sorghum NADP-malate dehydrogenase (MDH), and the rice C(3)-specific NADP-malic enzyme (ME), were overproduced in the mesophyll cells of rice plants independently or in combination. Overproduction individually of PPDK, MDH or ME did not affec...

An inverse linear relationship was observed between the levels of l-malate dehydrogenase (MDH) and growth rates of Aerobacter aerogenes when grown under aerobic and anaerobic conditions on various substrates which served as the sole carbon and energy sources. Deviations from this linearity were found. MDH levels of cells grown aerobically on oxalacetate, l-malate, d-mannose and d-galactose, and...

Zinc content of testes, bones, esophagus, kidneys, and muscles was decreased, whereas iron content was increased in the testes of zinc-deficient rats compared to restrictedly fed control rats. Histochemical enzyme determinations revealed reduced activities of certain enzymes in the testes, bones, esophagus, and kidneys. In the testes, lactic dehydrogenase (LDH), malic dehydrogenase (MDH), alcoh...

Abstract: Using polymorphic loci of allozyme as genetic marker and horizontal sliceable gel electrophoresis as method to examine the genotypes of 4 Bruguiera gymnorrhiza populations in Fugong of Fujian (24°24′), Futian of Guangdong (22°32′), Shankou of Guangxi (21°28′) and Dongzhai Harbor of Hainan (19°51′), China. The mating system was also decided by Multi Locus Testing. The polymorphic loci ...

The effects of different aluminum species on malate dehydrogenase (MDH) activity were investigated by monitoring amperometric i-t curves for the oxidation of NADH at low overpotential using a functionalized multi-wall nanotube (MWNT) modified glass carbon electrode (GCE). The results showed that Al(III) and Al(13) can activate the enzymatic activity of MDH, and the activation reaches maximum le...

This paper contributes to the literature on market disciplining of the sovereign governments in two ways: Firstly, it distinguishes the both sides of the market discipline hypothesis (MDH) by adopting three-stage least square estimation (3SLS) to incorporate the contemporaneous feedback effects between primary structural budget balances and country default risk premium. Secondly, by utilizing t...

Enzymes from females of five Pratylenchus brachyurus populations and one P. scribneri population were analyzed by isoelectric focusing electrophoresis. Of the 18 enzyme systems investigated, only malate dehydrogenase (MDH), phosphoglucomutase (PGM), and phosphoglucose isomerase (PGI) were detected from all five P. brachyurus populations and P. scribneri. Faint bands were detected for isocitrate...

L-Tartrate in wines and grapes was enzymatically quantified by using the secondary activity of D-malate dehydrogenase (D-MDH). NADH formed by the D-MDH reaction was monitored spectrophotometrically. Under the optimal conditions, L-tartrate (a 1.0 mM sample solution) was fully oxidized by D-MDH in 30 min. A linear relationship was obtained between the absorbance difference and the L-tartrate con...