scholarly journals Manipulation of the Blue Light Photoreceptor Cryptochrome 2 in Tomato Affects Vegetative Development, Flowering Time, and Fruit Antioxidant Content

2004 ◽  
Vol 137 (1) ◽  
pp. 199-208 ◽  
Author(s):  
Leonardo Giliberto ◽  
Gaetano Perrotta ◽  
Patrizia Pallara ◽  
James L. Weller ◽  
Paul D. Fraser ◽  
...  
Keyword(s):  
Flowering Time ◽  
Blue Light ◽  
Vegetative Development ◽  
Blue Light Photoreceptor ◽  
Antioxidant Content ◽  
Cryptochrome 2

Identification of Six New Photoactive Yellow ProteinsDiversity and StructureFunction Relationships in a Bacterial Blue Light Photoreceptor

2008 ◽  
Vol 84 (4) ◽  
pp. 956-969 ◽  
Author(s):  
Masato Kumauchi ◽  
Miwa T. Hara ◽  
Page Stalcup ◽  
Aihua Xie ◽  
Wouter D. Hoff
Keyword(s):  
Blue Light ◽  
Blue Light Photoreceptor

Cryptochrome 2 is involved in betacyanin decomposition induced by blue light in Suaeda salsa

2006 ◽  
Vol 33 (7) ◽  
pp. 697 ◽  
Author(s):  
Wang Chang-Quan ◽  
Liu Tao
Keyword(s):  
Western Blot ◽  
Blue Light ◽  
Hypocotyl Elongation ◽  
Suaeda Salsa ◽  
Biosynthesis Pathway ◽  
Tyrosine Hydroxylation ◽  
Key Enzyme ◽  
Cryptochrome 2 ◽  
Hydroxylation Activity

Seeds of the halophyte Suaeda salsa (L.) Pall. were cultured in 24 h dark and 14 h blue light / 10 h dark to examine the role of blue light and the blue-light-absorbing photoreceptor cryptochrome 2 (CRY2) in betacyanin accumulation, hypocotyl elongation and cotyledon opening in S. salsa seedlings. Darkness significantly promoted betacyanin accumulation and hypocotyl elongation but inhibited cotyledon opening. Blue light suppressed betacyanin accumulation and hypocotyl elongation but stimulated cotyledon opening. Betacyanin in S. salsa seedlings decomposed with time in blue light. Western blot analysis showed that CRY2 protein accumulated both in hypocotyls and cotyledons of S. salsa seedlings grown in dark, but degraded with time in blue light, which was paralleled by a decrease of tyrosine hydroxylation activity of tyrosinase, a key enzyme involved in the betalain biosynthesis pathway. These results suggest that CRY2 protein mediates betacyanin decomposition via inactivation of tyrosinase in S. salsa seedlings, and the blue-light-dependent degradation of CRY2 protein is crucial to its function.

Is the photoactive yellow protein a UV-B/blue light photoreceptor?

2011 ◽  
Vol 10 (4) ◽  
pp. 464 ◽  
Author(s):  
Elizabeth C. Carroll ◽  
Marijke Hospes ◽  
Carmen Valladares ◽  
Klaas J. Hellingwerf ◽  
Delmar S. Larsen
Keyword(s):  
Blue Light ◽  
Protein A ◽  
Photoactive Yellow Protein ◽  
Blue Light Photoreceptor

scholarly journals Single mutation in a novel bacterial LOV protein yields a singlet oxygen generator

2019 ◽  
Vol 18 (11) ◽  
pp. 2657-2660 ◽  
Author(s):  
Eleonora Consiglieri ◽  
Qianzhao Xu ◽  
Mikkel Bregnhøj ◽  
Michael Westberg ◽  
Peter R. Ogilby ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Blue Light ◽  
Single Mutation ◽  
Facultative Methylotroph ◽  
Blue Light Photoreceptor ◽  
Oxygen Generator ◽  
Singlet Oxygen Generator

The first blue light photoreceptor isolated from Methylobacterium radiotolerans, a pink-pigmented facultative methylotroph, has been turned into an efficient singlet oxygen generator by introducing a single mutation.

Cryptochrome 1, Cryptochrome 2, and Phytochrome A Co-Activate the Chloroplast psbD Blue Light-Responsive Promoter

2001 ◽  
Vol 13 (12) ◽  
pp. 2747
Author(s):  
Karen E. Thum ◽  
Minkyun Kim ◽  
David A. Christopher ◽  
John E. Mullet
Keyword(s):  
Blue Light ◽  
Phytochrome A ◽  
Cryptochrome 2 ◽  
Cryptochrome 1

Riboflavin-binding sites associated with flagella of Euglena: A candidate for blue-light photoreceptor?

Planta ◽  
1991 ◽  
Vol 185 (1) ◽  
Author(s):  
A. Nebenf�hr ◽  
A. Sch�fer ◽  
P. Galland ◽  
H. Senger ◽  
R. Hertel
Keyword(s):  
Blue Light ◽  
Binding Sites ◽  
Blue Light Photoreceptor
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