Differential Effects of Temperature and Hydrostatic Pressure on the Formation of Quinonoid Intermediates froml-Trp andl-Met by H463F MutantEscherichia coliTryptophan Indole-lyase†

Biochemistry ◽  
2005 ◽  
Vol 44 (43) ◽  
pp. 14289-14297 ◽  
Author(s):  
Robert S. Phillips ◽  
Georg Holtermann
Keyword(s):  
Hydrostatic Pressure ◽  
Differential Effects ◽  
Effects Of Temperature

Effect of temperature and hydrostatic pressure on algal respiration

1974 ◽  
Vol 52 (11) ◽  
pp. 2375-2379 ◽  
Author(s):  
Daniel H. Pope ◽  
Leslie R. Berger
Keyword(s):  
Hydrostatic Pressure ◽  
Dark Respiration ◽  
Anacystis Nidulans ◽  
Dunaliella Tertiolecta ◽  
Effect Of Temperature ◽  
Metabolic Processes ◽  
Differential Effects ◽  
Linear Fashion ◽  
Effects Of Temperature ◽  
Temperature And Pressure

Rates of dark respiration in Anacystis nidulans and Dunaliella tertiolecta, determined as loss of previously fixed 14CO2, were measured as a function of temperature and hydrostatic pressure. The rates of respiration in both algae decreased with decreased temperature over the range 25 to 5 °C in an approximately linear fashion and at 5 °C were only 10 to 20% of the rate at 25 °C. The rate of respiration by A. nidulans decreased with increased hydrostatic pressure. At 600 atm the rate was about 50% of that at 1 atm. Respiration by D. tertiolecta seemed to be unaffected by pressures to 600 atm. These results suggest that algal cells observed to occur in the deep oceans are potentially metabolically active at those depths; that they cannot survive for long periods of time solely through the utilization of previously stored materials; and that a heterotrophic mode of metabolism is most likely to explain their occurrence. The differential effects of temperature and pressure on various metabolic processes and growth of microalgae are also discussed.

scholarly journals Differential Effects of Temperature and Lipids on the Gating of RyR and SR K+ Channels

2016 ◽  
Vol 110 (3) ◽  
pp. 266a ◽  
Author(s):  
Sam El-Ajouz ◽  
Elisa Venturi ◽  
Rebecca Sitsapesan
Keyword(s):  
K Channels ◽  
Differential Effects ◽  
Effects Of Temperature

scholarly journals The Corrosion Performance of Galvanized Steel in Closed Rusty Seawater

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Shuan Liu ◽  
Huyuan Sun ◽  
Ning Zhang ◽  
Lijuan Sun
Keyword(s):  
Hydrostatic Pressure ◽  
Electrochemical Impedance ◽  
Zinc Coating ◽  
Chemical Characterization ◽  
Galvanized Steel ◽  
Corrosion Performance ◽  
Rust Layer ◽  
Tafel Polarization ◽  
Effects Of Temperature

The corrosion performance of galvanized steel in closed rusty seawater (CRS) was investigated using weight loss, Tafel polarization curve, and electrochemical impedance spectroscopy. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) were carried out for morphological and chemical characterization of the rust layer absorbed on the zinc coating. Effects of temperature and hydrostatic pressure on corrosion resistance of galvanized steel were studied. Results indicated that rust layer could induce pitting corrosion on the zinc coating under the Cl−erosion; high temperature accelerated the corrosion rate of zinc coating and inhibited the absorption of rust layer; the polarization resistance (Rp) of galvanized steel increased with the increase of hydrostatic pressure in CRS.

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