scholarly journals Interconnection of the Antenna Pigment 8-HDF and Flavin Facilitates Red-Light Reception in a Bifunctional Animal-like Cryptochrome

Biochemistry ◽  
2019 ◽  
Vol 59 (4) ◽  
pp. 594-604
Author(s):  
Sabine Oldemeyer ◽  
Andrew Z. Haddad ◽  
Graham R. Fleming
Keyword(s):  
Red Light ◽  
Antenna Pigment

scholarly journals Evidence that chlorophyll f functions solely as an antenna pigment in far-red-light photosystem I from Fischerella thermalis PCC 7521

2020 ◽  
Vol 1861 (5-6) ◽  
pp. 148184 ◽  
Author(s):  
Dmitry A. Cherepanov ◽  
Ivan V. Shelaev ◽  
Fedor E. Gostev ◽  
Arseniy V. Aybush ◽  
Mahir D. Mamedov ◽  
...  
Keyword(s):  
Photosystem I ◽  
Red Light ◽  
Antenna Pigment ◽  
Chlorophyll F

Postnatal growth rate and gonadal development in circadian tau mutant hamsters reared in constant dim red light

Reproduction ◽  
2000 ◽  
pp. 327-330 ◽  
Author(s):  
RJ Lucas ◽  
JA Stirland ◽  
YN Mohammad ◽  
AS Loudon
Keyword(s):  
Time Course ◽  
Red Light ◽  
Somatic Growth ◽  
Postnatal Growth ◽  
Gonadal Development ◽  
Testicular Development ◽  
Wild Type ◽  
Similar Time ◽  
Syrian Hamsters ◽  
Body Weights

The role of the circadian clock in the reproductive development of Syrian hamsters (Mesocricetus auratus was examined in wild type and circadian tau mutant hamsters reared from birth to 26 weeks of age under constant dim red light. Testis diameter and body weights were determined at weekly intervals in male hamsters from 4 weeks of age. In both genotypes, testicular development, subsequent regression and recrudescence exhibited a similar time course. The age at which animals displayed reproductive photosensitivity, as exhibited by testicular regression, was unrelated to circadian genotype (mean +/- SEM: 54 +/- 3 days for wild type and 59 +/- 5 days for tau mutants). In contrast, our studies revealed a significant impact of the mutation on somatic growth, such that tau mutants weighed 18% less than wild types at the end of the experiment. Our study reveals that the juvenile onset of reproductive photoperiodism in Syrian hamsters is not timed by the circadian system.

Inhibition of Various Steps in the Replication Cycle of Vesicular Stomatitis Virus Contributes to Its Photoinactivation by AlPcS4 or Pc4 and Red Light

1999 ◽  
Vol 69 (3) ◽  
pp. 353 ◽  
Author(s):  
Anne C. E. Moor ◽  
Angeline E. Wagenaars-van Gompel ◽  
Ralph C. A. Hermanns ◽  
Jannes van der Meulen ◽  
Jolanda Smit ◽  
...  
Keyword(s):  
Vesicular Stomatitis Virus ◽  
Red Light ◽  
Replication Cycle ◽  
Vesicular Stomatitis

Using watermark visibility measurements to select an optimized pair of spot colors for use in a binary watermark

2020 ◽  
Vol 2020 (15) ◽  
pp. 197-1-197-7
Author(s):  
Alastair Reed ◽  
Vlado Kitanovski ◽  
Kristyn Falkenstern ◽  
Marius Pedersen
Keyword(s):  
Food Packaging ◽  
Red Light ◽  
Human Observer ◽  
Viewing Distance ◽  
Point Of Sale ◽  
Complementary Color ◽  
Low Visibility ◽  
Packaging Industry ◽  
Spot Color ◽  
Selection Of

Spot colors are widely used in the food packaging industry. We wish to add a watermark signal within a spot color that is readable by a Point Of Sale (POS) barcode scanner which typically has red illumination. Some spot colors such as blue, black and green reflect very little red light and are difficult to modulate with a watermark at low visibility to a human observer. The visibility measurements that have been made with the Digimarc watermark enables the selection of a complementary color to the base color which can be detected by a POS barcode scanner but is imperceptible at normal viewing distance.

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