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Descriptor English: Phytochrome B
Descriptor Spanish: Fitocromo B
Descriptor fitocromo B
Scope note: Proteína fotorreguladora de las plantas que existe en dos formas, reversiblemmente interconvertibles por la acción de la LUZ. Como respuesta a la luz, pasa al NÚCLEO CELULAR y regula la transcripción de genes diana. El fitocromo B tiene un importante papel en la evitación del déficit lumínico e interviene en la desetiolación por la luz roja.
Descriptor Portuguese: Fitocromo B
Descriptor French: Phytochrome B
Entry term(s): PhyB Phytochrome
Phytochrome B Protein
Phytochrome, PhyB
Tree number(s): D12.776.765.675.500
D23.767.712.500
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D051939
Scope note: A plant photo regulatory protein that exists in two forms that are reversibly interconvertible by LIGHT. In response to light it moves to the CELL NUCLEUS and regulates transcription of target genes. Phytochrome B plays an important role in shade avoidance and mediates plant de-etiolation in red light.
Allowable Qualifiers: AD administration & dosage
AE adverse effects
AG agonists
AI antagonists & inhibitors
AN analysis
BI biosynthesis
BL blood
CF cerebrospinal fluid
CH chemistry
CL classification
CS chemical synthesis
DE drug effects
DF deficiency
EC economics
GE genetics
HI history
IM immunology
IP isolation & purification
ME metabolism
PD pharmacology
PH physiology
PK pharmacokinetics
PO poisoning
RE radiation effects
SD supply & distribution
ST standards
TO toxicity
TU therapeutic use
UL ultrastructure
UR urine
Registry Number: 136250-22-1
Public MeSH Note: 2006; PHYTOCHROME B was indexed under PHOTORECEPTORS & PHYTOCHROME & TRANSCRIPTION FACTORS 1991-2005, & under PLANT PROTEINS 1991-2004
History Note: 2006(1991)
DeCS ID: 51169
Unique ID: D051939
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 2006/01/01
Date of Entry: 2005/06/30
Phytochrome B - Preferred
Concept UI M0185924
Scope note A plant photo regulatory protein that exists in two forms that are reversibly interconvertible by LIGHT. In response to light it moves to the CELL NUCLEUS and regulates transcription of target genes. Phytochrome B plays an important role in shade avoidance and mediates plant de-etiolation in red light.
Preferred term Phytochrome B
Entry term(s) PhyB Phytochrome
Phytochrome B Protein
Phytochrome, PhyB



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