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Hydraulic flux-responsive hormone redistribution determines root branching.

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Title: Hydraulic flux-responsive hormone redistribution determines root branching.
Authors: Mehra, Poonam, Pandey, Bipin K., Melebari, Dalia, Banda, Jason, Leftley, Nicola, Couvreur, Valentin, Rowe, James, Anfang, Moran, De Gernier, Hugues, Morris, Emily, Sturrock, Craig J., Mooney, Sacha J., Swarup, Ranjan, Faulkner, Christine, Beeckman, Tom, Bhalerao, Rishikesh P., Shani, Eilon, Jones, Alexander M., Dodd, Ian C., Sharp, Robert E.
Source: Science (pre-March 2025). 11/18/2022, Vol. 378 Issue 6621, p762-768. 7p. 5 Color Photographs.
Subjects: Distributed resources (Electric utilities), Branching (Botany), Plant hormones, Plant roots, Phenotypic plasticity in plants, Soil moisture
Abstract: Plant roots exhibit plasticity in their branching patterns to forage efficiently for heterogeneously distributed resources, such as soil water. The xerobranching response represses lateral root formation when roots lose contact with water. Here, we show that xerobranching is regulated by radial movement of the phloem-derived hormone abscisic acid, which disrupts intercellular communication between inner and outer cell layers through plasmodesmata. Closure of these intercellular pores disrupts the inward movement of the hormone signal auxin, blocking lateral root branching. Once root tips regain contact with moisture, the abscisic acid response rapidly attenuates. Our study reveals how roots adapt their branching pattern to heterogeneous soil water conditions by linking changes in hydraulic flux with dynamic hormone redistribution. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Hydraulic flux-responsive hormone redistribution determines root branching.
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  Data: <searchLink fieldCode="AR" term="%22Mehra%2C+Poonam%22">Mehra, Poonam</searchLink><br /><searchLink fieldCode="AR" term="%22Pandey%2C+Bipin+K%2E%22">Pandey, Bipin K.</searchLink><br /><searchLink fieldCode="AR" term="%22Melebari%2C+Dalia%22">Melebari, Dalia</searchLink><br /><searchLink fieldCode="AR" term="%22Banda%2C+Jason%22">Banda, Jason</searchLink><br /><searchLink fieldCode="AR" term="%22Leftley%2C+Nicola%22">Leftley, Nicola</searchLink><br /><searchLink fieldCode="AR" term="%22Couvreur%2C+Valentin%22">Couvreur, Valentin</searchLink><br /><searchLink fieldCode="AR" term="%22Rowe%2C+James%22">Rowe, James</searchLink><br /><searchLink fieldCode="AR" term="%22Anfang%2C+Moran%22">Anfang, Moran</searchLink><br /><searchLink fieldCode="AR" term="%22De+Gernier%2C+Hugues%22">De Gernier, Hugues</searchLink><br /><searchLink fieldCode="AR" term="%22Morris%2C+Emily%22">Morris, Emily</searchLink><br /><searchLink fieldCode="AR" term="%22Sturrock%2C+Craig+J%2E%22">Sturrock, Craig J.</searchLink><br /><searchLink fieldCode="AR" term="%22Mooney%2C+Sacha+J%2E%22">Mooney, Sacha J.</searchLink><br /><searchLink fieldCode="AR" term="%22Swarup%2C+Ranjan%22">Swarup, Ranjan</searchLink><br /><searchLink fieldCode="AR" term="%22Faulkner%2C+Christine%22">Faulkner, Christine</searchLink><br /><searchLink fieldCode="AR" term="%22Beeckman%2C+Tom%22">Beeckman, Tom</searchLink><br /><searchLink fieldCode="AR" term="%22Bhalerao%2C+Rishikesh+P%2E%22">Bhalerao, Rishikesh P.</searchLink><br /><searchLink fieldCode="AR" term="%22Shani%2C+Eilon%22">Shani, Eilon</searchLink><br /><searchLink fieldCode="AR" term="%22Jones%2C+Alexander+M%2E%22">Jones, Alexander M.</searchLink><br /><searchLink fieldCode="AR" term="%22Dodd%2C+Ian+C%2E%22">Dodd, Ian C.</searchLink><br /><searchLink fieldCode="AR" term="%22Sharp%2C+Robert+E%2E%22">Sharp, Robert E.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 11/18/2022, Vol. 378 Issue 6621, p762-768. 7p. 5 Color Photographs.
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  Data: Plant roots exhibit plasticity in their branching patterns to forage efficiently for heterogeneously distributed resources, such as soil water. The xerobranching response represses lateral root formation when roots lose contact with water. Here, we show that xerobranching is regulated by radial movement of the phloem-derived hormone abscisic acid, which disrupts intercellular communication between inner and outer cell layers through plasmodesmata. Closure of these intercellular pores disrupts the inward movement of the hormone signal auxin, blocking lateral root branching. Once root tips regain contact with moisture, the abscisic acid response rapidly attenuates. Our study reveals how roots adapt their branching pattern to heterogeneous soil water conditions by linking changes in hydraulic flux with dynamic hormone redistribution. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=160417513
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        Value: 10.1126/science.add3771
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        Text: English
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      – SubjectFull: Plant hormones
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      – SubjectFull: Soil moisture
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