Title : Brassinosteroids regulate the differential growth of Arabidopsis hypocotyls through auxin signaling components IAA19 and ARF7.

Pub. Date : 2013 May

PMID : 23125315






7 Functional Relationships(s)
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1 Brassinosteroids regulate the differential growth of Arabidopsis hypocotyls through auxin signaling components IAA19 and ARF7. Brassinosteroids Transcriptional factor B3 family protein / auxin-responsive factor AUX/IAA-like protein Arabidopsis thaliana
2 Here, we demonstrate that high BR concentration or enhanced BR signaling induce the differential growth of etiolated hypocotyls and result in the morphological changes, while auxin-resistant mutants, msg2 (dominant mutant of IAA19) and arf7, are insensitive to the BR effect and can partially suppress the phenotype of bzr1-D (dominant mutant of BZR1 with enhanced BR signaling). Brassinosteroids Transcriptional factor B3 family protein / auxin-responsive factor AUX/IAA-like protein Arabidopsis thaliana
3 Here, we demonstrate that high BR concentration or enhanced BR signaling induce the differential growth of etiolated hypocotyls and result in the morphological changes, while auxin-resistant mutants, msg2 (dominant mutant of IAA19) and arf7, are insensitive to the BR effect and can partially suppress the phenotype of bzr1-D (dominant mutant of BZR1 with enhanced BR signaling). Brassinosteroids Transcriptional factor B3 family protein / auxin-responsive factor AUX/IAA-like protein Arabidopsis thaliana
4 Here, we demonstrate that high BR concentration or enhanced BR signaling induce the differential growth of etiolated hypocotyls and result in the morphological changes, while auxin-resistant mutants, msg2 (dominant mutant of IAA19) and arf7, are insensitive to the BR effect and can partially suppress the phenotype of bzr1-D (dominant mutant of BZR1 with enhanced BR signaling). Brassinosteroids Transcriptional factor B3 family protein / auxin-responsive factor AUX/IAA-like protein Arabidopsis thaliana
5 Here, we demonstrate that high BR concentration or enhanced BR signaling induce the differential growth of etiolated hypocotyls and result in the morphological changes, while auxin-resistant mutants, msg2 (dominant mutant of IAA19) and arf7, are insensitive to the BR effect and can partially suppress the phenotype of bzr1-D (dominant mutant of BZR1 with enhanced BR signaling). Brassinosteroids Transcriptional factor B3 family protein / auxin-responsive factor AUX/IAA-like protein Arabidopsis thaliana
6 Systemic microarray analysis revealed that a number of BR-responsive genes showed reduced BR response in msg2, confirming that BR employs auxin signaling components IAA19 and ARF7 to modulate the specific downstream processes. Brassinosteroids Transcriptional factor B3 family protein / auxin-responsive factor AUX/IAA-like protein Arabidopsis thaliana
7 Systemic microarray analysis revealed that a number of BR-responsive genes showed reduced BR response in msg2, confirming that BR employs auxin signaling components IAA19 and ARF7 to modulate the specific downstream processes. Brassinosteroids Transcriptional factor B3 family protein / auxin-responsive factor AUX/IAA-like protein Arabidopsis thaliana