Hydraulic flux–responsive hormone redistribution determines root branching

Poonam Mehra; Bipin K. Pandey; Dalia Melebari; Jason Banda; Nicola Leftley; Valentin Couvreur; James Rowe; Moran Anfang; Hugues De Gernier; Emily Morris; Craig J. Sturrock; Sacha J. Mooney; Ranjan Swarup; Christine Faulkner; Tom Beeckman; Rishikesh P. Bhalerao; Eilon Shani; Alexander M. Jones; Ian C. Dodd; Robert E. Sharp; Ari Sadanandom; Xavier Draye; Malcolm J. Bennett

doi:https://doi.org/10.1126/science.add3771

Hydraulic flux–responsive hormone redistribution determines root branching

Poonam Mehra, Bipin K. Pandey, Dalia Melebari, Jason Banda, Nicola Leftley, Valentin Couvreur, James Rowe, Moran Anfang, Hugues De Gernier, Emily Morris, Craig J. Sturrock, Sacha J. Mooney, Ranjan Swarup, Christine Faulkner, Tom Beeckman, Rishikesh P. Bhalerao, Eilon Shani, Alexander M. Jones, Ian C. Dodd, Robert E. SharpAri Sadanandom, Xavier Draye, Malcolm J. Bennett

School of Plant Sciences and Food Security

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	762-768
Number of pages	7
Journal	Science
Volume	378
Issue number	6621
DOIs	https://doi.org/10.1126/science.add3771
State	Published - 18 Nov 2022

All Science Journal Classification (ASJC) codes

General

Access to Document

https://doi.org/10.1126/science.add3771

Cite this

Mehra, P., Pandey, B. K., Melebari, D., Banda, J., Leftley, N., Couvreur, V., Rowe, J., Anfang, M., De Gernier, H., Morris, E., Sturrock, C. J., Mooney, S. J., Swarup, R., Faulkner, C., Beeckman, T., Bhalerao, R. P., Shani, E., Jones, A. M., Dodd, I. C., ... Bennett, M. J. (2022). Hydraulic flux–responsive hormone redistribution determines root branching. Science, 378(6621), 762-768. https://doi.org/10.1126/science.add3771

@article{a49b03e3486344a0bc2a497c6c130de8,

title = "Hydraulic flux–responsive hormone redistribution determines root branching",

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.",

author = "Poonam Mehra and Pandey, {Bipin K.} and Dalia Melebari and Jason Banda and Nicola Leftley and Valentin Couvreur and James Rowe and Moran Anfang and {De Gernier}, Hugues and Emily Morris and Sturrock, {Craig J.} and Mooney, {Sacha J.} and Ranjan Swarup and Christine Faulkner and Tom Beeckman and Bhalerao, {Rishikesh P.} and Eilon Shani and Jones, {Alexander M.} and Dodd, {Ian C.} and Sharp, {Robert E.} and Ari Sadanandom and Xavier Draye and Bennett, {Malcolm J.}",

year = "2022",

month = nov,

day = "18",

doi = "https://doi.org/10.1126/science.add3771",

language = "الإنجليزيّة",

volume = "378",

pages = "762--768",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6621",

}

Mehra, P, Pandey, BK, Melebari, D, Banda, J, Leftley, N, Couvreur, V, Rowe, J, Anfang, M, De Gernier, H, Morris, E, Sturrock, CJ, Mooney, SJ, Swarup, R, Faulkner, C, Beeckman, T, Bhalerao, RP, Shani, E, Jones, AM, Dodd, IC, Sharp, RE, Sadanandom, A, Draye, X & Bennett, MJ 2022, 'Hydraulic flux–responsive hormone redistribution determines root branching', Science, vol. 378, no. 6621, pp. 762-768. https://doi.org/10.1126/science.add3771

TY - JOUR

T1 - Hydraulic flux–responsive hormone redistribution determines root branching

AU - Mehra, Poonam

AU - Pandey, Bipin K.

AU - Melebari, Dalia

AU - Banda, Jason

AU - Leftley, Nicola

AU - Couvreur, Valentin

AU - Rowe, James

AU - Anfang, Moran

AU - De Gernier, Hugues

AU - Morris, Emily

AU - Sturrock, Craig J.

AU - Mooney, Sacha J.

AU - Swarup, Ranjan

AU - Faulkner, Christine

AU - Beeckman, Tom

AU - Bhalerao, Rishikesh P.

AU - Shani, Eilon

AU - Jones, Alexander M.

AU - Dodd, Ian C.

AU - Sharp, Robert E.

AU - Sadanandom, Ari

AU - Draye, Xavier

AU - Bennett, Malcolm J.

PY - 2022/11/18

Y1 - 2022/11/18

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85142208054&partnerID=8YFLogxK

U2 - https://doi.org/10.1126/science.add3771

DO - https://doi.org/10.1126/science.add3771

M3 - مقالة

C2 - 36395221

SN - 0036-8075

VL - 378

SP - 762

EP - 768

JO - Science

JF - Science

IS - 6621

ER -

Hydraulic flux–responsive hormone redistribution determines root branching

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this