pistachio green stink bug, acrosternum hegeeri, due to its inflicting damages on crop quantity and quality, is of a great economical importance in pistachio production. on the other hand, a knowledge of digestive enzymes, is quite indispensable in the study and application of new pest management technologies. results of studeies have shown that midgut in this insect is divided into four section...

The effect of cysteine concentration and cysteine source [cysteine, methionine or 2-oxo-thiazolidine-4-carboxylate (OTC)] on the metabolism of [35S]cysteine was studied in isolated rat hepatocytes. Production of each of the major metabolites of cysteine (glutathione, sulfate, taurine) increased as cysteine or methionine, but not OTC, concentration in the medium was increased. At equimolar exoge...

Cryopreservation is associated with the production of reactive oxygen species, which leads to lipid peroxidation of the sperm membrane and consequently a reduction in sperm motility and decreased fertility potential. The aim of this study was to determine the optimal concentration of L-cysteine needed for cryopreservation of boar semen. Twelve boars provided semen of proven motility and morphol...

The effects of L-cysteine on mitochondrial DNA (mtDNA) in mouse brain were investigated both in vivoandin vitro. An intracerebroventricular (icv) injection of L-cysteine (1.25 micromol/animal) caused mtDNA damage in brain frontal and central portions of the cortex, broad-spectrum limbic and severe sustained seizures in mice, and increased lipid peroxidation in the whole brain. The L-cysteine-me...

In higher plants the biosynthesis of l-cysteine from l-serine, acetylCoA, and sulfide requires serine transacetylase and O-acetylserine sulfhydrylase. The distribution of these enzymes in kidney bean (Phaseolus vulgaris L. cv. Red Kidney) seedlings was determined. Between one-third and two-thirds of the serine transacetylase activity was associated with mitochondria, whereas all of the O-acetyl...

A novel PVDF hybrid membrane with excellent active–passive integrated antifouling and antibacterial properties is fabricated. PDA guiding effect created directed toward AgNP l -cysteine formation, the performance of entire structure enhanced greatly.