The xerobranching response represses lateral root formation when roots are not in contact with water
Efficient soil exploration by roots represents an important target for crop improvement and food security [1, 2]. Lateral root (LR) formation is a key trait for optimising soil foraging for crucial resources such as water and nutrients. Here, we report an adaptive response termed xerobranching, exhi...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier (Cell Press)
2018
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| Online Access: | https://eprints.nottingham.ac.uk/53512/ |
| _version_ | 1848798952856485888 |
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| author | Orman-Ligeza, Beata Morris, Emily C. Parizot, Boris Lavigne, Tristan Babé, Aurelie Ligeza, Aleksander Klein, Stephanie Sturrock, Craig Xuan, Wei Novák, Ondřey Ljung, Karin Fernandez, Maria Rodriguez, Pedro L. Dodd, Ian C. De Smet, Ive Chaumont, Francois Batoko, Henri Périlleux, Claire Lynch, Jonathan P. Bennett, Malcolm J. Beeckman, Tom Draye, Xavier |
| author_facet | Orman-Ligeza, Beata Morris, Emily C. Parizot, Boris Lavigne, Tristan Babé, Aurelie Ligeza, Aleksander Klein, Stephanie Sturrock, Craig Xuan, Wei Novák, Ondřey Ljung, Karin Fernandez, Maria Rodriguez, Pedro L. Dodd, Ian C. De Smet, Ive Chaumont, Francois Batoko, Henri Périlleux, Claire Lynch, Jonathan P. Bennett, Malcolm J. Beeckman, Tom Draye, Xavier |
| author_sort | Orman-Ligeza, Beata |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Efficient soil exploration by roots represents an important target for crop improvement and food security [1, 2]. Lateral root (LR) formation is a key trait for optimising soil foraging for crucial resources such as water and nutrients. Here, we report an adaptive response termed xerobranching, exhibited by cereal roots, that represses branching when root tips are not in contact with wet soil. Non-invasive X-ray microCT imaging revealed that cereal roots rapidly repress LR formation as they enter an air space within a soil profile and are no longer in contact with water. Transcript profiling of cereal root tips revealed that transient water deficit triggers the abscisic acid (ABA) response pathway. In agreement with this, exogenous ABA treatment can mimic repression of LR formation under transient water deficit. Genetic analysis in Arabidopsis revealed that ABA repression of LR formation requires the PYR/PYL/RCAR-dependent signalling pathway. Our findings suggest that ABA acts as the key signal regulating xerobranching. We conclude that this new ABA-dependent adaptive mechanism allows roots to rapidly respond to changes in water availability in their local micro-environment and to use internal resources efficiently. |
| first_indexed | 2025-11-14T20:27:57Z |
| format | Article |
| id | nottingham-53512 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:27:57Z |
| publishDate | 2018 |
| publisher | Elsevier (Cell Press) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-535122019-08-03T04:30:14Z https://eprints.nottingham.ac.uk/53512/ The xerobranching response represses lateral root formation when roots are not in contact with water Orman-Ligeza, Beata Morris, Emily C. Parizot, Boris Lavigne, Tristan Babé, Aurelie Ligeza, Aleksander Klein, Stephanie Sturrock, Craig Xuan, Wei Novák, Ondřey Ljung, Karin Fernandez, Maria Rodriguez, Pedro L. Dodd, Ian C. De Smet, Ive Chaumont, Francois Batoko, Henri Périlleux, Claire Lynch, Jonathan P. Bennett, Malcolm J. Beeckman, Tom Draye, Xavier Efficient soil exploration by roots represents an important target for crop improvement and food security [1, 2]. Lateral root (LR) formation is a key trait for optimising soil foraging for crucial resources such as water and nutrients. Here, we report an adaptive response termed xerobranching, exhibited by cereal roots, that represses branching when root tips are not in contact with wet soil. Non-invasive X-ray microCT imaging revealed that cereal roots rapidly repress LR formation as they enter an air space within a soil profile and are no longer in contact with water. Transcript profiling of cereal root tips revealed that transient water deficit triggers the abscisic acid (ABA) response pathway. In agreement with this, exogenous ABA treatment can mimic repression of LR formation under transient water deficit. Genetic analysis in Arabidopsis revealed that ABA repression of LR formation requires the PYR/PYL/RCAR-dependent signalling pathway. Our findings suggest that ABA acts as the key signal regulating xerobranching. We conclude that this new ABA-dependent adaptive mechanism allows roots to rapidly respond to changes in water availability in their local micro-environment and to use internal resources efficiently. Elsevier (Cell Press) 2018-07-23 Article PeerReviewed application/pdf en cc_by_nc_nd https://eprints.nottingham.ac.uk/53512/1/Orman-Ligeza%20Morris%20et%20al.%20Current%20Biology%202018.pdf Orman-Ligeza, Beata, Morris, Emily C., Parizot, Boris, Lavigne, Tristan, Babé, Aurelie, Ligeza, Aleksander, Klein, Stephanie, Sturrock, Craig, Xuan, Wei, Novák, Ondřey, Ljung, Karin, Fernandez, Maria, Rodriguez, Pedro L., Dodd, Ian C., De Smet, Ive, Chaumont, Francois, Batoko, Henri, Périlleux, Claire, Lynch, Jonathan P., Bennett, Malcolm J., Beeckman, Tom and Draye, Xavier (2018) The xerobranching response represses lateral root formation when roots are not in contact with water. Current Biology . ISSN 1879-0445 (In Press) |
| spellingShingle | Orman-Ligeza, Beata Morris, Emily C. Parizot, Boris Lavigne, Tristan Babé, Aurelie Ligeza, Aleksander Klein, Stephanie Sturrock, Craig Xuan, Wei Novák, Ondřey Ljung, Karin Fernandez, Maria Rodriguez, Pedro L. Dodd, Ian C. De Smet, Ive Chaumont, Francois Batoko, Henri Périlleux, Claire Lynch, Jonathan P. Bennett, Malcolm J. Beeckman, Tom Draye, Xavier The xerobranching response represses lateral root formation when roots are not in contact with water |
| title | The xerobranching response represses lateral root formation when roots are not in contact with water |
| title_full | The xerobranching response represses lateral root formation when roots are not in contact with water |
| title_fullStr | The xerobranching response represses lateral root formation when roots are not in contact with water |
| title_full_unstemmed | The xerobranching response represses lateral root formation when roots are not in contact with water |
| title_short | The xerobranching response represses lateral root formation when roots are not in contact with water |
| title_sort | xerobranching response represses lateral root formation when roots are not in contact with water |
| url | https://eprints.nottingham.ac.uk/53512/ |