ArticlePlant physiology2002
Auxin and ethylene response interactions during Arabidopsis root hair development dissected by auxin influx modulators.
Article in Plant physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.
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Who cites it
84 citing papers in PubMed, 237 citations in OpenAlex.
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- RAPID ALKALINIZATION FACTOR 22 is a key modulator of the root hair growth responses to fungal ethylene emissions in Arabidopsis.Plant physiology · 2024Article
- Understanding role of roots in plant response to drought: Way forward to climate-resilient crops.The plant genome · 2024Review
- Loss-of-function ofPlant signaling & behavior · 2023Article
- Fine-tuned nitric oxide and hormone interface in plant root development and regeneration.Journal of experimental botany · 2023Review
- A cryptic natural variant allele of BYPASS2 suppresses the bypass1 mutant phenotype.Plant physiology · 2023Article
- Comparative Transcriptome Analysis Reveals the Interaction of Sugar and Hormone Metabolism Involved in the Root Hair Morphogenesis of the Endangered FirPlants (Basel, Switzerland) · 2023Article
- Sugarcane Genotypes with Contrasting Biological Nitrogen Fixation Efficiencies Differentially Modulate Nitrogen Metabolism, Auxin Signaling, and Microorganism Perception Pathways.Plants (Basel, Switzerland) · 2022Article
- Root hair-specific transcriptome reveals response to low phosphorus inFrontiers in plant science · 2022Article
- Naturally based ionic liquids with indole-3-acetate anions and cations derived from cinchona alkaloids.RSC advances · 2021Article
- Coumarin Interferes with Polar Auxin Transport Altering Microtubule Cortical Array Organization inInternational journal of molecular sciences · 2021Article
- MYB30 and ETHYLENE INSENEITIVE3 antagonistically regulate root hair growth and phosphorus uptake under phosphate deficiency in Arabidopsis.Plant signaling & behavior · 2021Article
- Induction of Systemic Resistance against Bacterial Leaf Streak Disease and Growth Promotion in Rice Plant by Streptomyces shenzhenesis TKSC3 and Streptomyces sp. SS8.The plant pathology journal · 2021Article
- The Diverse Salt-Stress Response of ArabidopsisPlants (Basel, Switzerland) · 2021Article
- Alternative Oxidase Inhibition Impairs Tobacco Root Development and Root Hair Formation.Frontiers in plant science · 2021Article
- Integrative Roles of Phytohormones on Cell Proliferation, Elongation and Differentiation in theFrontiers in plant science · 2021Review
- Science and application of strigolactones.The New phytologist · 2020Review
- Fluctuating auxin response gradients determine pavement cell-shape acquisition.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Hormonal regulation of root hair growth and responses to the environment in Arabidopsis.Journal of experimental botany · 2020Review
24 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The plant hormones auxin and ethylene have been shown to play important roles during root hair development. However, cross talk between auxin and ethylene makes it difficult to understand the independent role of either hormone. To dissect their respective roles, we examined the effects of two compounds, chromosaponin I (CSI) and 1-naphthoxyacetic acid (1-NOA), on the root hair developmental process in wild-type Arabidopsis, ethylene-insensitive mutant ein2-1, and auxin influx mutants aux1-7, aux1-22, and double mutant aux1-7 ein2. Beta-glucuronidase (GUS) expression analysis in the BA-GUS transgenic line, consisting of auxin-responsive domains of PS-IAA4/5 promoter and GUS reporter, revealed that 1-NOA and CSI act as auxin uptake inhibitors in Arabidopsis roots. The frequency of root hairs in ein2-1 roots was greatly reduced in the presence of CSI or 1-NOA, suggesting that endogenous auxin plays a critical role for the root hair initiation in the absence of an ethylene response. All of these mutants showed a reduction in root hair length, however, the root hair length could be restored with a variable concentration of 1-naphthaleneacetic acid (NAA). NAA (10 nM) restored the root hair length of aux1 mutants to wild-type level, whereas 100 nM NAA was needed for ein2-1 and aux1-7 ein2 mutants. Our results suggest that insensitivity in ethylene response affects the auxin-driven root hair elongation. CSI exhibited a similar effect to 1-NOA, reducing root hair growth and the number of root hair-bearing cells in wild-type and ein2-1 roots, while stimulating these traits in aux1-7and aux1-7ein2 roots, confirming that CSI is a unique modulator of AUX1.
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