Phytochrome A Negatively Regulates the Shade Avoidance Response by Increasing Auxin/Indole Acidic Acid Protein Stability (Record no. 51059)

MARC details
000 -LEADER
fixed length control field 02324nam a2200289Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625160200.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-16894
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 250602s9999 xx |||||s2 |||| ||und|d
245 10 - TITLE STATEMENT
Title Phytochrome A Negatively Regulates the Shade Avoidance Response by Increasing Auxin/Indole Acidic Acid Protein Stability
490 0# - SERIES STATEMENT
Volume/sequential designation Developmental Cell, 44(1), p.29-41.e4, 2018
520 3# - SUMMARY, ETC.
Summary, etc. The reduction in the red to far-red light ratio (R/FR)and photosynthetically active radiation caused by dense planting initiates shade avoidance responses (SARs)to help plants compete against their neighbors. However, deep shade attenuates shade-induced stem elongation to suppress excessive reversion toward skotomorphogenic development, in which photoreceptor phytochrome A (PHYA)has been known to play the major role. However, the molecular mechanism underlying PHYA function in deep shade is poorly understood. Here, we report that shade-accumulated PHYA can release auxin/indole-3-acetic acid (AUX/IAA), suppressors in the auxin signaling pathway, from SCFTIR1, an auxin receptor, to weaken auxin signaling and negatively regulate shade response. Corroborating this, phyA mutants display an enhanced auxin response to deep shade and auxin treatment. Specifically, PHYA competes with TIR1 by directly binding and stabilizing AUX/IAA. Our findings illustrate a mechanistic model of how plants sense different shade levels to fine-tune auxin signaling and generate appropriate SAR. Light filtered through dense planting initiates a shade avoidance response (SAR)in plants that helps them compete with their neighbors. Yang et al. now show that accumulation of photoreceptor PHYA in shaded plants prevents excessive SAR by stabilizing the auxin signaling repressors AUX/IAA through direct interaction.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element AUX/IAA
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element AUXIN SIGNALING
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PHYTOCHROME A
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PROTEIN STABILITY
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element SHADE AVOIDANCE RESPONSE
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Yang, C.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Xie, F.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Jiang, Y.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Li, Z.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Huang, X.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Li, L.E.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1O_GabtS6gZvf2pqSWpJfdy0iAHU5WY6C/view?usp=drivesdk">https://drive.google.com/file/d/1O_GabtS6gZvf2pqSWpJfdy0iAHU5WY6C/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Clasificación local
Koha item type Documentos solicitados
Holdings
Lost status Source of classification or shelving scheme Damaged status Not for loan Collection Home library Current library Shelving location Date acquired Total checkouts Full call number Date last seen Price effective from Koha item type
  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-16894 25.06.2025 25.06.2025 Documentos solicitados