Hydrotropism: how roots search for water
Fresh water is an increasingly scarce resource for agriculture. Plant roots mediate water uptake from the soil and have developed a number of adaptive traits such as hydrotropism to aid water foraging. Hydrotropism modifies root growth to respond to a water potential gradient in soil and grow toward...
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| Format: | Article |
| Language: | English |
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Oxford University Press
2018
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| Online Access: | https://eprints.nottingham.ac.uk/51020/ |
| _version_ | 1848798394185678848 |
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| author | Dietrich, Daniela |
| author_facet | Dietrich, Daniela |
| author_sort | Dietrich, Daniela |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Fresh water is an increasingly scarce resource for agriculture. Plant roots mediate water uptake from the soil and have developed a number of adaptive traits such as hydrotropism to aid water foraging. Hydrotropism modifies root growth to respond to a water potential gradient in soil and grow towards areas with a higher moisture content. Abscisic acid (ABA) and a small number of genes, including those encoding ABA signal transducers, MIZ2/GNOM, and the hydrotropism-specific MIZ1, are known to be necessary for the response in Arabidopsis thaliana, whereas the role of auxin in hydrotropism appears to vary depending on the plant species. This review will describe recent progress characterizing the hormonal regulation of hydrotropism. Recent advances in identifying the sites of hydrotropic perception and response, together with its interaction with gravitropism, will also be discussed. Finally, I will describe putative mechanisms for perception of the water potential gradient and a potential role for hydrotropism in acclimatizing plants to drought conditions. |
| first_indexed | 2025-11-14T20:19:04Z |
| format | Article |
| id | nottingham-51020 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:19:04Z |
| publishDate | 2018 |
| publisher | Oxford University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-510202019-02-26T04:30:20Z https://eprints.nottingham.ac.uk/51020/ Hydrotropism: how roots search for water Dietrich, Daniela Fresh water is an increasingly scarce resource for agriculture. Plant roots mediate water uptake from the soil and have developed a number of adaptive traits such as hydrotropism to aid water foraging. Hydrotropism modifies root growth to respond to a water potential gradient in soil and grow towards areas with a higher moisture content. Abscisic acid (ABA) and a small number of genes, including those encoding ABA signal transducers, MIZ2/GNOM, and the hydrotropism-specific MIZ1, are known to be necessary for the response in Arabidopsis thaliana, whereas the role of auxin in hydrotropism appears to vary depending on the plant species. This review will describe recent progress characterizing the hormonal regulation of hydrotropism. Recent advances in identifying the sites of hydrotropic perception and response, together with its interaction with gravitropism, will also be discussed. Finally, I will describe putative mechanisms for perception of the water potential gradient and a potential role for hydrotropism in acclimatizing plants to drought conditions. Oxford University Press 2018-02-26 Article PeerReviewed application/pdf en https://eprints.nottingham.ac.uk/51020/1/Dietrich%20Hydrotropism%20review%20ePrints.pdf Dietrich, Daniela (2018) Hydrotropism: how roots search for water. Journal of Experimental Botany, 69 (11). pp. 2759-2771. ISSN 1460-2431 Abscisic acid auxin drought gravitropism hydrotropism root water water potential gradient https://academic.oup.com/jxb/advance-article/doi/10.1093/jxb/ery034/4910007 doi:10.1093/jxb/ery034 doi:10.1093/jxb/ery034 |
| spellingShingle | Abscisic acid auxin drought gravitropism hydrotropism root water water potential gradient Dietrich, Daniela Hydrotropism: how roots search for water |
| title | Hydrotropism: how roots search for water |
| title_full | Hydrotropism: how roots search for water |
| title_fullStr | Hydrotropism: how roots search for water |
| title_full_unstemmed | Hydrotropism: how roots search for water |
| title_short | Hydrotropism: how roots search for water |
| title_sort | hydrotropism: how roots search for water |
| topic | Abscisic acid auxin drought gravitropism hydrotropism root water water potential gradient |
| url | https://eprints.nottingham.ac.uk/51020/ https://eprints.nottingham.ac.uk/51020/ https://eprints.nottingham.ac.uk/51020/ |