Independent action of ELF3 and phyB to control hypocotyl elongation and flowering time
UNSPECIFIED. (2000) Independent action of ELF3 and phyB to control hypocotyl elongation and flowering time. PLANT PHYSIOLOGY, 122 (4). pp. 1149-1160. ISSN 0032-0889Full text not available from this repository.
Light regulates various aspects of plant growth, and the photoreceptor phytochrome B (phyB) mediates many responses to red light. In a screen for Arabidopsis mutants with phenotypes similar to those of phyB mutants, we isolated two new elf3 mutants. One has weaker morphological phenotypes than previously identified elf3 alleles, but still abolishes circadian rhythms under continuous light. Like phyB mutants, elf3 mutants have elongated hypocotyls and petioles, flower early, and have defects in the red light response. However, we found that elf3 mutations have an additive interaction with a phyB null mutation, with phyA or hy4 null mutations, or with a PHYB overexpression construct, and that an elf3 mutation does not prevent nuclear localization of phyB. These results suggest that either there is substantial redundancy in phyB and elf3 function, or the two genes regulate distinct signaling pathways.
|Item Type:||Journal Article|
|Subjects:||S Agriculture > SB Plant culture|
|Journal or Publication Title:||PLANT PHYSIOLOGY|
|Publisher:||AMER SOC PLANT PHYSIOLOGISTS|
|Number of Pages:||12|
|Page Range:||pp. 1149-1160|
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