As a general coordinator, auxin plays a key role in regulating plant growth and development through triggering diverse responses in plants. Auxin also regulates absorption, transport and utilization of mineral elements N, P, Fe, Zn and Al etc. Recent studies revealed the crucial roles of auxin in regulating agricultural traits including yield, quality and architecture, of crops.
The function of auxin depends on signal transduction that includes auxin receptor TIR1/AFB (transport inhibitor response 1/auxin signaling F-box), transcription repressor auxin/Indole-3-acetic acid (Aux/IAA), auxin response factor (ARF) and downstream target genes. Moreover, the level and distribution of the free auxin, which are accurately controlled through biosynthesis, conjugation, degradation and polar transport, also affects plant growth and morphogenesis. In addition, auxin cooperates or antagonizes with other phytohormones (cytokinin, gibberellin, ethylene, abscisic acid, brassinolide, jasmonates, salicylic acid and strigolactone etc) to achieve the comprehensive functions in both plant development and environmental adaptations. All above aspects of auxin are fine-regulated at multiple levels, and the detailed molecular mechanisms as well as the distinct auxin effect on plant development, remain unanswered.
This Research Topic welcomes Original Research, Reviews, and Opinion articles providing new insights into auxin signaling and function. We particularly welcome studies focused on:
• Auxin signal transduction in plants
• Auxin effects in plant growth and development
• Molecular mechanism of polar auxin transport (PAT)
• IAA metabolism including biosynthesis, conjugation, and degradation
• Interaction between auxin and other plant hormones/signaling pathways
• Auxin and utilization of mineral elements, regulation of crop traits
As a general coordinator, auxin plays a key role in regulating plant growth and development through triggering diverse responses in plants. Auxin also regulates absorption, transport and utilization of mineral elements N, P, Fe, Zn and Al etc. Recent studies revealed the crucial roles of auxin in regulating agricultural traits including yield, quality and architecture, of crops.
The function of auxin depends on signal transduction that includes auxin receptor TIR1/AFB (transport inhibitor response 1/auxin signaling F-box), transcription repressor auxin/Indole-3-acetic acid (Aux/IAA), auxin response factor (ARF) and downstream target genes. Moreover, the level and distribution of the free auxin, which are accurately controlled through biosynthesis, conjugation, degradation and polar transport, also affects plant growth and morphogenesis. In addition, auxin cooperates or antagonizes with other phytohormones (cytokinin, gibberellin, ethylene, abscisic acid, brassinolide, jasmonates, salicylic acid and strigolactone etc) to achieve the comprehensive functions in both plant development and environmental adaptations. All above aspects of auxin are fine-regulated at multiple levels, and the detailed molecular mechanisms as well as the distinct auxin effect on plant development, remain unanswered.
This Research Topic welcomes Original Research, Reviews, and Opinion articles providing new insights into auxin signaling and function. We particularly welcome studies focused on:
• Auxin signal transduction in plants
• Auxin effects in plant growth and development
• Molecular mechanism of polar auxin transport (PAT)
• IAA metabolism including biosynthesis, conjugation, and degradation
• Interaction between auxin and other plant hormones/signaling pathways
• Auxin and utilization of mineral elements, regulation of crop traits
