
The xerobranching response represses lateral root formation when roots are not in contact with water
- Author
- Beata Orman-Ligeza (UGent) , Emily C Morris, Boris Parizot (UGent) , Tristan Lavigne, Aurelie Babé, Aleksander Ligeza, Stephanie Klein, Craig Sturrock, Wei Xuan, Ondřey Novák, Karin Ljung, Maria A Fernandez, Pedro L Rodriguez, Ian C Dodd, Ive De Smet (UGent) , François Chaumont, Henri Batoko, Claire Périlleux, Jonathan P Lynch, Malcolm J Bennett, Tom Beeckman (UGent) and Xavier Draye
- Organization
- Abstract
- 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 optimizing 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 signaling 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.
- Keywords
- ABSCISIC-ACID, ARABIDOPSIS-THALIANA, GENE-EXPRESSION, SYSTEM ARCHITECTURE, INITIATION, DROUGHT, ABA, MERISTEM, EXPLORATION, PATTERNS
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-8584708
- MLA
- Orman-Ligeza, Beata, et al. “The Xerobranching Response Represses Lateral Root Formation When Roots Are Not in Contact with Water.” CURRENT BIOLOGY, vol. 28, no. 19, 2018, pp. 3165–73, doi:10.1016/j.cub.2018.07.074.
- APA
- Orman-Ligeza, B., Morris, E. C., Parizot, B., Lavigne, T., Babé, A., Ligeza, A., … Draye, X. (2018). The xerobranching response represses lateral root formation when roots are not in contact with water. CURRENT BIOLOGY, 28(19), 3165–3173. https://doi.org/10.1016/j.cub.2018.07.074
- Chicago author-date
- Orman-Ligeza, Beata, Emily C Morris, Boris Parizot, Tristan Lavigne, Aurelie Babé, Aleksander Ligeza, Stephanie Klein, et al. 2018. “The Xerobranching Response Represses Lateral Root Formation When Roots Are Not in Contact with Water.” CURRENT BIOLOGY 28 (19): 3165–73. https://doi.org/10.1016/j.cub.2018.07.074.
- Chicago author-date (all authors)
- Orman-Ligeza, Beata, Emily C Morris, Boris Parizot, Tristan Lavigne, Aurelie Babé, Aleksander Ligeza, Stephanie Klein, Craig Sturrock, Wei Xuan, Ondřey Novák, Karin Ljung, Maria A Fernandez, Pedro L Rodriguez, Ian C Dodd, Ive De Smet, François Chaumont, Henri Batoko, Claire Périlleux, Jonathan P Lynch, Malcolm J Bennett, Tom Beeckman, and Xavier Draye. 2018. “The Xerobranching Response Represses Lateral Root Formation When Roots Are Not in Contact with Water.” CURRENT BIOLOGY 28 (19): 3165–3173. doi:10.1016/j.cub.2018.07.074.
- Vancouver
- 1.Orman-Ligeza B, Morris EC, Parizot B, Lavigne T, Babé A, Ligeza A, et al. The xerobranching response represses lateral root formation when roots are not in contact with water. CURRENT BIOLOGY. 2018;28(19):3165–73.
- IEEE
- [1]B. Orman-Ligeza et al., “The xerobranching response represses lateral root formation when roots are not in contact with water,” CURRENT BIOLOGY, vol. 28, no. 19, pp. 3165–3173, 2018.
@article{8584708, abstract = {{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 optimizing 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 signaling 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.}}, author = {{Orman-Ligeza, Beata and Morris, Emily C and Parizot, Boris and Lavigne, Tristan and Babé, Aurelie and Ligeza, Aleksander and Klein, Stephanie and Sturrock, Craig and Xuan, Wei and Novák, Ondřey and Ljung, Karin and Fernandez, Maria A and Rodriguez, Pedro L and Dodd, Ian C and De Smet, Ive and Chaumont, François and Batoko, Henri and Périlleux, Claire and Lynch, Jonathan P and Bennett, Malcolm J and Beeckman, Tom and Draye, Xavier}}, issn = {{0960-9822}}, journal = {{CURRENT BIOLOGY}}, keywords = {{ABSCISIC-ACID,ARABIDOPSIS-THALIANA,GENE-EXPRESSION,SYSTEM ARCHITECTURE,INITIATION,DROUGHT,ABA,MERISTEM,EXPLORATION,PATTERNS}}, language = {{eng}}, number = {{19}}, pages = {{3165--3173}}, title = {{The xerobranching response represses lateral root formation when roots are not in contact with water}}, url = {{http://doi.org/10.1016/j.cub.2018.07.074}}, volume = {{28}}, year = {{2018}}, }
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