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Cited by 221

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A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate

Open access
Bhosale, Rahul, Giri, Jitender, Pandey, Bipin K., Giehl, Ricardo F. H., Hartmann, Anja, Traini, Richard, Truskina, Jekaterina, Leftley, Nicola, Hanlon, Meredith, Swarup, Kamal, Rashed, Afaf, Voß, Ute, Alonso, Jose, Stepanova, Anna, Yun, Jeonga, Ljung, Karin, Brown, Kathleen M., Lynch, Jonathan P., Dolan, Liam, Vernoux, Teva, Bishopp, Anthony, Wells, Darren, von Wirén, Nicolaus, Bennett, Malcolm J., Swarup, Ranjan·2018·Nature Communications

Abstract

Phosphate (P) is an essential macronutrient for plant growth. Roots employ adaptive mechanisms to forage for P in soil. Root hair elongation is particularly important since P is immobile. Here we report that auxin plays a critical role promoting root hair growth in Arabidopsis in response to low external P. Mutants disrupting auxin synthesis ( taa1 ) and transport ( aux1 ) attenuate the low P root hair response. Conversely, targeting AUX1 expression in lateral root cap and epidermal cells rescues this low P response in aux1 . Hence auxin transport from the root apex to differentiation zone promotes auxin-dependent hair response to low P. Low external P results in induction of root hair expressed auxin-inducible transcription factors ARF19, RSL2, and RSL4. Mutants lacking these genes disrupt the low P root hair response. We conclude auxin synthesis, transport and response pathway components play critical roles regulating this low P root adaptive response.

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Metadata

Authors
Bhosale, R., Giri, J., Pandey, B. K., Giehl, R. F. H., Hartmann, A., Traini, R., Truskina, J., Leftley, N., Hanlon, M., Swarup, K., Rashed, A., Voß, U., Alonso, J., Stepanova, A., Yun, J., Ljung, K., Brown, K. M., Lynch, J. P., Dolan, L., Vernoux, T., Bishopp, A., Wells, D., von Wirén, N., Bennett, M. J., & Swarup, R.
Venue
Nature Communications
Published
2018-04-12
Volume
9
Issue
1
Pages
1409-1409
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2798030806
Cited by
221
References
1
FWCI
17.60
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate. https://app.cochat.ai/papers/10.1038/s41467-018-03851-3
The paper
Bhosale, R., Giri, J., Pandey, B. K., Giehl, R. F. H., Hartmann, A., Traini, R., Truskina, J., Leftley, N., Hanlon, M., Swarup, K., Rashed, A., Voß, U., Alonso, J., Stepanova, A., Yun, J., Ljung, K., Brown, K. M., Lynch, J. P., Dolan, L., . . . Swarup, R. (2018). A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate. Nature Communications. https://doi.org/10.1038/s41467-018-03851-3

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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