Red light-induced reaction of NO2 with 2,3-dimethyl-2-butene in a low-temperature argon matrix

1994 ◽  
Vol 50 (8-9) ◽  
pp. 1455-1465 ◽  
Author(s):  
Munetaka Nakata
Keyword(s):  
Low Temperature ◽  
Red Light ◽  
Argon Matrix ◽  
Induced Reaction

scholarly journals Thermal Stress, Aggregation of Chlorophyll-Protein Complexes, and Light-Dependent Recovery of PSII activity in Wheat Seedlings

2021 ◽  
Vol 68 (5) ◽  
pp. 867-872
Author(s):  
M. S. Khristin ◽  
T. N. Smolova ◽  
V. D. Kreslavski
Keyword(s):  
Low Temperature ◽  
Structural Changes ◽  
Protein Complexes ◽  
Red Light ◽  
Photochemical Activity ◽  
Wheat Seedlings ◽  
Psii Activity ◽  
Temperature Spectra ◽  
Chlorophyll Protein Complexes ◽  
Chlorophyll Protein

Abstract The dynamics of changes in the photochemical activity of photosystem II (PSII) and low-temperature spectra at 77 K in the first leaves of 11-day winter wheat plants Triticum aestivum L., as well as structural changes in chlorophyll-protein complexes (CPC) of thylakoid membranes during recovery after a short-term (20 min) heating at a temperature of 42°C, were studied. Changes in the Fv/Fm, F735/F695, and F735/F685 ratios indicate inhibition of PSII immediately after heating. Using nondenaturing electrophoresis, it was shown that the light-harvesting Chl a/b complex of PSII does not aggregate immediately after heating but after several hours, after 6 h the desagregation of CPC was observed, which was consistent with an increase in the Fv/Fm ratio upon recovery. The influence of temperature, intensity, and quality of light (white, blue, and red light) on the recovery of PSII activity and low-temperature fluorescence spectra was studied. It was concluded that the recovery is a photo-activated low-energy process, independent of photosynthesis, and the most effective in blue light.

Theoretical and Experimental Studies of Enflurane. Infrared Spectra in Solution, in Low-Temperature Argon Matrix and Blue Shifts Resulting from Dimerization

2007 ◽  
Vol 111 (42) ◽  
pp. 12228-12238 ◽  
Author(s):  
Danuta Michalska ◽  
Dariusz C. Bieńko ◽  
Bogusława Czarnik-Matusewicz ◽  
Maria Wierzejewska ◽  
Camille Sandorfy ◽  
...  
Keyword(s):  
Low Temperature ◽  
Infrared Spectra ◽  
Experimental Studies ◽  
Argon Matrix

5-Methylhydantoin: From Isolated Molecules in a Low-Temperature Argon Matrix to Solid State Polymorphs Characterization

2017 ◽  
Vol 121 (28) ◽  
pp. 5267-5279 ◽  
Author(s):  
B. A. Nogueira ◽  
G. O. Ildiz ◽  
J. Canotilho ◽  
M. E. S. Eusébio ◽  
M. S. C. Henriques ◽  
...  
Keyword(s):  
Solid State ◽  
Low Temperature ◽  
Argon Matrix ◽  
Isolated Molecules

NO+O chemiluminescence in low temperature argon matrix

1977 ◽  
Vol 67 (12) ◽  
pp. 5688-5690 ◽  
Author(s):  
J. Fournier ◽  
J. Deson ◽  
C. Vermeil
Keyword(s):  
Low Temperature ◽  
Argon Matrix
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