Design and characterization of a novel indicator dosimeter for blue-light radiation

2009 ◽  
Vol 36 (2) ◽  
pp. 642-644 ◽  
Author(s):  
G. R. Ferreira ◽  
C. K. B. de Vasconcelos ◽  
R. F. Bianchi
Keyword(s):  
Blue Light ◽  
Light Radiation

Influences of ultra‐violet (UV)‐blue light radiation on the growth of cotton. II. Photosynthesis, leaf anatomy, and iron reduction

1987 ◽  
Vol 10 (17) ◽  
pp. 2283-2297 ◽  
Author(s):  
James C. Pushnik ◽  
Gene W. Miller ◽  
Von D. Jolley ◽  
John C. Brown ◽  
Tim D. Davis ◽  
...  
Keyword(s):  
Blue Light ◽  
Leaf Anatomy ◽  
Iron Reduction ◽  
Ultra Violet ◽  
Light Radiation

scholarly journals Characterization of an Unstable Allele of the Arabidopsis HY4 Locus

Genetics ◽  
1998 ◽  
Vol 149 (3) ◽  
pp. 1575-1585
Author(s):  
Edward P Bruggemann ◽  
Bernard Doan ◽  
Korie Handwerger ◽  
Gisela Storz
Keyword(s):  
Fast Neutron ◽  
Blue Light ◽  
Large Deletion ◽  
The Other ◽  
Epigenetic Mechanisms ◽  
Loss Of Function ◽  
Wild Type ◽  
Unusual Behavior ◽  
Recessive Lethal

Abstract The Arabidopsis HY4 gene encodes the nonessential blue light photoreceptor CRY1. Loss-of-function hy4 mutants have an elongated hypocotyl phenotype after germination under blue light. We previously analyzed 20 independent hy4 alleles produced by fast neutron mutagenesis. These alleles were grouped into two classes based on their genetic behavior and corresponding deletion size: (1) null hy4 alleles that were semidominant over wild type and contained small or moderate-sized deletions at HY4 and (2) null hy4 alleles that were recessive lethal and contained large HY4 deletions. Here we describe one additional fast neutron hy4 mutant, B144, that did not fall into either of these two classes. Mutant B144 was isolated as a heterozygote with an intermediate hy4 phenotype. One allele from this mutant, hy4-B144Δ, contains a large deletion at HY4 and is recessive lethal. The other allele from this mutant, HY4-B144*, appears to be intact and functional but is unstable and spontaneously converts to a nonfunctional hy4 allele. In addition, HY4-B144* is lethal in homozygotes and suppresses local recombination. We discuss genetic and epigenetic mechanisms that may account for the unusual behavior of the HY4-B144* allele.

Sign in / Sign up

Export Citation Format

Share Document