Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate
Root traits such as root angle and hair length influence resource acquisition particularly for immobile nutrients like phosphorus (P). Here, we attempted to modify root angle in rice by disrupting the OsAUX1 auxin influx transporter gene in an effort to improve rice P acquisition efficiency. We show...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2018
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| Online Access: | https://eprints.nottingham.ac.uk/51120/ |
| _version_ | 1848798421331214336 |
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| author | Giri, Jitender Bhosale, Rahul Huang, Guoqiang Pandey, Bipin K. Parker, Helen Zappala, Susan Yang, Jing Dievart, Anne Bureau, Charlotte Ljung, Karin Price, Adam Rose, Terry Larrieu, Antoine Mairhofer, Stefan Sturrock, Craig J. White, Philip Dupuy, Lionel Hawkesford, Malcolm Perin, Christophe Liang, Wanqi Peret, Benjamin Hodgman, Charlie T. Lynch, Jonathan Wissuwa, Matthias Zhang, Dabing Pridmore, Tony Mooney, Sacha J. Guiderdoni, Emmanuel Swarup, Ranjan Bennett, Malcolm J. |
| author_facet | Giri, Jitender Bhosale, Rahul Huang, Guoqiang Pandey, Bipin K. Parker, Helen Zappala, Susan Yang, Jing Dievart, Anne Bureau, Charlotte Ljung, Karin Price, Adam Rose, Terry Larrieu, Antoine Mairhofer, Stefan Sturrock, Craig J. White, Philip Dupuy, Lionel Hawkesford, Malcolm Perin, Christophe Liang, Wanqi Peret, Benjamin Hodgman, Charlie T. Lynch, Jonathan Wissuwa, Matthias Zhang, Dabing Pridmore, Tony Mooney, Sacha J. Guiderdoni, Emmanuel Swarup, Ranjan Bennett, Malcolm J. |
| author_sort | Giri, Jitender |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Root traits such as root angle and hair length influence resource acquisition particularly for immobile nutrients like phosphorus (P). Here, we attempted to modify root angle in rice by disrupting the OsAUX1 auxin influx transporter gene in an effort to improve rice P acquisition efficiency. We show by X-ray microCT imaging that root angle is altered in the osaux1 mutant, causing preferential foraging in the top soil where P normally accumulates, yet surprisingly, P acquisition efficiency does not improve. Through closer investigation, we reveal that OsAUX1 also promotes root hair elongation in response to P limitation. Reporter studies reveal that auxin response increases in the root hair zone in low P environments. We demonstrate that OsAUX1 functions to mobilize auxin from the root apex to the differentiation zone where this signal promotes hair elongation when roots encounter low external P. We conclude that auxin and OsAUX1 play key roles in promoting root foraging for P in rice. |
| first_indexed | 2025-11-14T20:19:30Z |
| format | Article |
| id | nottingham-51120 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:19:30Z |
| publishDate | 2018 |
| publisher | Nature Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-511202018-04-13T05:33:46Z https://eprints.nottingham.ac.uk/51120/ Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate Giri, Jitender Bhosale, Rahul Huang, Guoqiang Pandey, Bipin K. Parker, Helen Zappala, Susan Yang, Jing Dievart, Anne Bureau, Charlotte Ljung, Karin Price, Adam Rose, Terry Larrieu, Antoine Mairhofer, Stefan Sturrock, Craig J. White, Philip Dupuy, Lionel Hawkesford, Malcolm Perin, Christophe Liang, Wanqi Peret, Benjamin Hodgman, Charlie T. Lynch, Jonathan Wissuwa, Matthias Zhang, Dabing Pridmore, Tony Mooney, Sacha J. Guiderdoni, Emmanuel Swarup, Ranjan Bennett, Malcolm J. Root traits such as root angle and hair length influence resource acquisition particularly for immobile nutrients like phosphorus (P). Here, we attempted to modify root angle in rice by disrupting the OsAUX1 auxin influx transporter gene in an effort to improve rice P acquisition efficiency. We show by X-ray microCT imaging that root angle is altered in the osaux1 mutant, causing preferential foraging in the top soil where P normally accumulates, yet surprisingly, P acquisition efficiency does not improve. Through closer investigation, we reveal that OsAUX1 also promotes root hair elongation in response to P limitation. Reporter studies reveal that auxin response increases in the root hair zone in low P environments. We demonstrate that OsAUX1 functions to mobilize auxin from the root apex to the differentiation zone where this signal promotes hair elongation when roots encounter low external P. We conclude that auxin and OsAUX1 play key roles in promoting root foraging for P in rice. Nature Publishing Group 2018-04-12 Article PeerReviewed application/pdf en cc_by https://eprints.nottingham.ac.uk/51120/1/s41467-018-03850-4.pdf Giri, Jitender, Bhosale, Rahul, Huang, Guoqiang, Pandey, Bipin K., Parker, Helen, Zappala, Susan, Yang, Jing, Dievart, Anne, Bureau, Charlotte, Ljung, Karin, Price, Adam, Rose, Terry, Larrieu, Antoine, Mairhofer, Stefan, Sturrock, Craig J., White, Philip, Dupuy, Lionel, Hawkesford, Malcolm, Perin, Christophe, Liang, Wanqi, Peret, Benjamin, Hodgman, Charlie T., Lynch, Jonathan, Wissuwa, Matthias, Zhang, Dabing, Pridmore, Tony, Mooney, Sacha J., Guiderdoni, Emmanuel, Swarup, Ranjan and Bennett, Malcolm J. (2018) Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate. Nature Communications, 9 (1). 1408/1-1408/7. ISSN 2041-1723 https://www.nature.com/articles/s41467-018-03850-4 doi10.1038/s41467-018-03850-4 doi10.1038/s41467-018-03850-4 |
| spellingShingle | Giri, Jitender Bhosale, Rahul Huang, Guoqiang Pandey, Bipin K. Parker, Helen Zappala, Susan Yang, Jing Dievart, Anne Bureau, Charlotte Ljung, Karin Price, Adam Rose, Terry Larrieu, Antoine Mairhofer, Stefan Sturrock, Craig J. White, Philip Dupuy, Lionel Hawkesford, Malcolm Perin, Christophe Liang, Wanqi Peret, Benjamin Hodgman, Charlie T. Lynch, Jonathan Wissuwa, Matthias Zhang, Dabing Pridmore, Tony Mooney, Sacha J. Guiderdoni, Emmanuel Swarup, Ranjan Bennett, Malcolm J. Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate |
| title | Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate |
| title_full | Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate |
| title_fullStr | Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate |
| title_full_unstemmed | Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate |
| title_short | Rice auxin influx carrier OsAUX1 facilitates root hair elongation in response to low external phosphate |
| title_sort | rice auxin influx carrier osaux1 facilitates root hair elongation in response to low external phosphate |
| url | https://eprints.nottingham.ac.uk/51120/ https://eprints.nottingham.ac.uk/51120/ https://eprints.nottingham.ac.uk/51120/ |