Infrared Spectra of Dyestuff Intermediates

Absorption Spectra of Phytochrome Intermediates

Native phytochrome (124kdalton) was isolated from etiolated seedlings o f Avena sativa L. cv. Pirol (Baywa, Munich). From low temperature spectra (0 °C to — 165°C ) o f phytochrom e samples irradiated either with red or far-red light, spectra o f intermediates were calculated. Both absorption bands o f the phytochrome chromophore were reported. On the pathway P r i V r , native phytochrome does...

Infrared and visible absolute and difference spectra of bacteriorhodopsin photocycle intermediates.

We have used new kinetic fitting procedures to obtain infrared (IR) absolute spectra for intermediates of the main bacteriorhodopsin (bR) photocycle(s). The linear-algebra-based procedures of Hendler et al. (J. Phys. Chem. B, 105, 3319-3228 (2001)) for obtaining clean absolute visible spectra of bR photocycle intermediates were adapted for use with IR data. This led to isolation, for the first ...

Infrared Spectra of Tissues.

Near-Infrared Spectra of Ultraluminous Infrared Galaxies.

Near-infrared spectra with a resolution of lambda&solm0;Deltalambda approximately 1100 in the rest-wavelength range of 1.8-2.2 µm have been obtained for a complete sample of 33 ultraluminous infrared galaxies (ULIRGs). Of the 33 objects observed, two show evidence of a central active galactic nucleus (AGN) through either a broad Paschen-alpha line or emission in the 1.963 µm fine structure of [...

Taxonomic Value of Infrared Spectra.

Efforts to demonstrate species or generic relationships among bacteria throu-h the use of infrared (IR) spectra of whole cells (Norris, J. Hyg. 57:326, 1959) have been increasing despite frequent cautions (Kenner et al., J. B3acteriol. 75:16, 1958) that such procedures are fraught with experimental pitfalls. AIany of the reports concerning bacterial identification by this technique are favorabl...