Display options
Cite
Nagatani A, Reed JW, Chory J. Isolation and Initial Characterization of Arabidopsis Mutants That Are Deficient in Phytochrome A. Plant Physiol. 1993;102(1):269-277doi: 10.1104/pp.102.1.269.
Nagatani, A., Reed, J. W., & Chory, J. (1993). Isolation and Initial Characterization of Arabidopsis Mutants That Are Deficient in Phytochrome A. Plant physiology, 102(1), 269-277. https://doi.org/10.1104/pp.102.1.269
Nagatani, A., et al. "Isolation and Initial Characterization of Arabidopsis Mutants That Are Deficient in Phytochrome A." Plant physiology vol. 102,1 (1993): 269-277. doi: https://doi.org/10.1104/pp.102.1.269
Nagatani A, Reed JW, Chory J. Isolation and Initial Characterization of Arabidopsis Mutants That Are Deficient in Phytochrome A. Plant Physiol. 1993 May;102(1):269-277. doi: 10.1104/pp.102.1.269. PMID: 12231818; PMCID: PMC158772.
Copy Download .nbib Format: NLM
Share it on

Plant Physiol. 1993 May;102(1):269-277. doi: 10.1104/pp.102.1.269.

Isolation and Initial Characterization of Arabidopsis Mutants That Are Deficient in Phytochrome A.

Plant physiology

A. Nagatani, J. W. Reed, J. Chory

Affiliations

  1. Laboratory of Photoperception and Signal Transduction, Frontier Research Program, Riken Institute, Hirosawa 2-1, Wako City, Saitama, Japan 351-01 (A.N.).

PMID: 12231818 PMCID: PMC158772 DOI: 10.1104/pp.102.1.269

Abstract

Phytochrome, a red/far-red-light photoreceptor protein of plants, is encoded by a small gene family. Phytochrome A (PHYA), the product of the PHYA gene, is the predominant molecular species of phytochrome in etiolated tissue and has been best characterized biochemically. To define a role for PHYA, we isolated new mutants, designated fre1 (far-red elongated), in Arabidopsis thaliana that were specifically deficient in PHYA spectral activity and protein accumulation. These mutants were identified on the basis of their long hypocotyl phenotype under continuous far-red light. Although the fre1 mutants lacked the hypocotyl response to continuous far-red light, their responses to continuous white light and to end-of-day far-red-light treatments were normal. Thus, PHYA appears to play only a minor role in the regulation of hypocotyl elongation under natural conditions. In contrast, the fre1 mutation affected greening a fre1 mutant was less able than the wild type to deetiolate after growth in the dark. However, the potentiation effect of a red-light pulse on accumulation of chlorophyll was not changed significantly in the fre1 mutants. Thus, the function of PHYA might be highly specialized and restricted to certain phases of Arabidopsis development.

References

  1. Plant Cell. 1989 Sep;1(9):867-880 - PubMed
  2. Plant Cell. 1991 Nov;3(11):1177-1186 - PubMed
  3. Mol Gen Genet. 1991 Feb;225(2):305-13 - PubMed
  4. Plant Physiol. 1987 Jun;84(2):304-10 - PubMed
  5. Plant Physiol. 1991 Oct;97(2):714-9 - PubMed
  6. Plant Cell. 1991 Dec;3(12):1263-1274 - PubMed
  7. Plant Cell. 1992 Mar;4(3):241-51 - PubMed
  8. Plant Mol Biol. 1992 Nov;20(4):589-600 - PubMed
  9. Plant Cell. 1993 Feb;5(2):147-57 - PubMed
  10. Plant Cell. 1993 Jan;5(1):39-48 - PubMed
  11. Plant Physiol. 1992 Nov;100(3):1442-7 - PubMed
  12. Adv Biophys. 1989;25:133-67 - PubMed

Publication Types