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Auxin Interactions with Other Hormones in Plant Development
Serina M Mazzoni-Putman1, Javier Brumos1, Chengsong Zhao1
1Department of Plant and Microbial Biology, North Carolina State University, Raleigh, North Carolina 27695, USA.
Cold Spring Harbor Perspectives in Biology
|April 27, 2021
Summary
Plant hormone auxin is vital for growth and environmental responses. Its complex interactions with other plant hormones are crucial but not fully understood, highlighting gaps in current knowledge.
Area of Science:
- Plant Biology
- Hormone Signaling
- Developmental Biology
Background:
- Auxin is a key plant growth regulator essential for development and environmental responses.
- It influences processes from embryogenesis to senescence and interaction with stimuli.
- Auxin's function is deeply intertwined with other plant hormones.
Purpose of the Study:
- To review the complex interactions between auxin and other plant hormones.
- To highlight the current fragmented understanding of plant hormone crosstalk.
- To underscore the need for further research into these intricate signaling networks.
Main Methods:
- Literature review of existing research on plant hormone interactions.
- Analysis of studies detailing crosstalk mechanisms at synthesis, transport, and response levels.
- Synthesis of findings on shared regulatory pathways and transcriptional targets.
Main Results:
- Auxin interacts with abscisic acid, brassinosteroids, cytokinins, ethylene, gibberellic acid, jasmonates, salicylic acid, and strigolactones.
- Hormone crosstalk occurs via regulation of synthesis, transport, and response pathways.
- Interactions involve physical contact between hormone-specific regulators and convergence on common genes.
Conclusions:
- The intricate network of plant hormone interactions involving auxin is complex.
- Current understanding of this hormonal crosstalk remains incomplete and fragmentary.
- Further investigation is required to fully elucidate these vital plant signaling pathways.
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