to determine the effects of vinasse on physicochemical properties of a calcareous and an acidic soil experiment was factorial and had a complete randomized design and three replications. factorial combinations of five vinasse levels (0, 5, 10, 20 and 40 t/ha) and three exposure times (10, 20 and 30 days) were considered as the treatments of this experiment. the result of experiment showed that ...

Two lysosomal proenzymes, procathepsins L and D, bind to mouse fibroblast microsomal membranes at acidic pH. This membrane association is independent of the mannose-6-phosphate receptors and requires the presence of the N-terminal propeptides of the enzymes. We have identified the protein that specifically binds procathepsin L at pH 5. A 43-kDa membrane protein coimmunoprecipitated with procath...

The dimeric structure of the N-terminal 12 residues drives the interaction of α-synuclein protein with membranes. Moreover, experimental studies indicated that the aggregation of α-synuclein is faster at low pH than neutral pH. Nevertheless, the effects of different pH on the structural characteristics of the α-syn12 dimer remain poorly understood. We performed 500 ns temperature replica exchan...

A novel dextran-based nanoprobe was synthesized and demonstrated the pH-activated near-infrared (NIR) fluorescence in the physiologically acidic aqueous solutions and acidic compartments in human glioblastoma cancer cells.

Tundra adjacent to the gravel Dalton Highway in northern Alaska was examined for effects of 15 yr of chronic road and road dust disturbance. Road effects at a nonacidic site (soil pH 2 5.0) and an acidic site (soil pH < 5.0) were compared to examine differential susceptibility. Overall, effects on vegetation were more pronounced in acidic tundra. Initial substrate pH appears to control the degr...

introduction: the aim of this study was to demonstrate changes in nature of mucin and production of acidic forms using pas-alcian blue stain at ph=2.5. appearance of non-goblet metaplastic columnar cells of lower esophagus is considered as an early sign of barrette sophagus, simultaneous in conjunction or before the appearance of goblet cells in patients with gastroesophageal reflux disease. ma...

Biosynthesis of kasugamycin could be greatly enhanced by applying a nonnutritional stress of pH shock, that is, sequential pH changes from a neutral pH to an acidic condition and then back to the neutral condition. During the acidic period, cell growth decreased to nil. After recovery of the neutral condition, the cell growth resumed after a time lag concurrently with the biosynthesis of kasuga...