PMID- 9414562
OWN - NLM
STAT- MEDLINE
DCOM- 19980223
LR  - 20240109
IS  - 0032-0889 (Print)
IS  - 1532-2548 (Electronic)
IS  - 0032-0889 (Linking)
VI  - 115
IP  - 4
DP  - 1997 Dec
TI  - Fluence and wavelength requirements for Arabidopsis CAB gene induction by 
      different phytochromes.
PG  - 1533-40
AB  - The roles of different phytochromes have been investigated in the photoinduction 
      of several chlorophyll a/b-binding protein genes (CAB) of Arabidopsis thaliana. 
      Etiolated seedlings of the wild type, a phytochrome A (PhyA) null mutant (phyA), 
      a phytochrome B (PhyB) null mutant (phyB), and phyA/phyB double mutant were 
      exposed to monochromatic light to address the questions of the fluence and 
      wavelength requirements for CAB induction by different phytochromes. In the wild 
      type and the phyB mutant, PhyA photoirreversibly induced CAB expression upon 
      irradiation with very-low-fluence light of 350 to 750 nm. In contrast, using the 
      phyA mutant, PhyB photoreversibly induced CAB expression with low-fluence red 
      light. The threshold fluences of red light for PhyA- and PhyB-specific induction 
      were about 10 nmol m-2 and 10 mumol m-2, respectively. In addition, CAB 
      expression was photoreversibly induced with low-fluence red light in the 
      phyA/phyB double mutant, revealing that another phytochrome(s) (PhyX) regulated 
      CAB expression in a manner similar to PhyB. These data suggest that plants 
      utilize different phytochromes to perceive light of varying wave-lengths and 
      fluence, and begin to explain how plants respond so exquisitely to changing light 
      in their environment.
FAU - Hamazato, F
AU  - Hamazato F
AD  - Hitachi Advanced Research Laboratory, Saitama, Japan.
FAU - Shinomura, T
AU  - Shinomura T
FAU - Hanzawa, H
AU  - Hanzawa H
FAU - Chory, J
AU  - Chory J
FAU - Furuya, M
AU  - Furuya M
LA  - eng
GR  - R01GM52413/GM/NIGMS NIH HHS/United States
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, P.H.S.
PL  - United States
TA  - Plant Physiol
JT  - Plant physiology
JID - 0401224
RN  - 0 (Arabidopsis Proteins)
RN  - 0 (Light-Harvesting Protein Complexes)
RN  - 0 (PHYA protein, Arabidopsis)
RN  - 0 (PHYB protein, Arabidopsis)
RN  - 0 (Photosynthetic Reaction Center Complex Proteins)
RN  - 0 (Phytochrome A)
RN  - 0 (Transcription Factors)
RN  - 11121-56-5 (Phytochrome)
RN  - 136250-22-1 (Phytochrome B)
SB  - IM
MH  - Arabidopsis/genetics/*metabolism/radiation effects
MH  - Arabidopsis Proteins
MH  - Darkness
MH  - Gene Expression Regulation, Plant/*radiation effects
MH  - Genes, Plant
MH  - Light
MH  - Light-Harvesting Protein Complexes
MH  - Lighting
MH  - Mutagenesis
MH  - *Photoreceptor Cells
MH  - Photosynthetic Reaction Center Complex Proteins/*biosynthesis/genetics
MH  - Phytochrome/genetics/*physiology
MH  - Phytochrome A
MH  - Phytochrome B
MH  - *Transcription Factors
MH  - Transcriptional Activation
PMC - PMC158619
EDAT- 1998/01/01 00:00
MHDA- 1998/01/01 00:01
PMCR- 1998/12/01
CRDT- 1998/01/01 00:00
PHST- 1998/01/01 00:00 [pubmed]
PHST- 1998/01/01 00:01 [medline]
PHST- 1998/01/01 00:00 [entrez]
PHST- 1998/12/01 00:00 [pmc-release]
AID - 115/4/1533 [pii]
AID - 10.1104/pp.115.4.1533 [doi]
PST - ppublish
SO  - Plant Physiol. 1997 Dec;115(4):1533-40. doi: 10.1104/pp.115.4.1533.