ArticlePlant physiology2009
Modeling the hydraulics of root growth in three dimensions with phloem water sources.
Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 41 citations in OpenAlex.
- Review
- Not so hidden anymore: Advances and challenges in understanding root growth under water deficits.The Plant cell · 2024Review
- Modelling time variations of root diameter and elongation rate as related to assimilate supply and demand.Journal of experimental botany · 2020Article
- Apoplastic Hydrogen Peroxide in the Growth Zone of the Maize Primary Root. Increased Levels Differentially Modulate Root Elongation Under Well-Watered and Water-Stressed Conditions.Frontiers in plant science · 2020Article
- Water transport, perception, and response in plants.Journal of plant research · 2019Review
- MdMYB88 and MdMYB124 Enhance Drought Tolerance by Modulating Root Vessels and Cell Walls in Apple.Plant physiology · 2018Article
- Growth is required for perception of water availability to pattern root branches in plants.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Increased Uptake of Chelated Copper Ions by Lolium perenne Attributed to Amplified Membrane and Endodermal Damage.International journal of molecular sciences · 2015Article
- The divining root: moisture-driven responses of roots at the micro- and macro-scale.Journal of experimental botany · 2015Review
- Response of millet and sorghum to a varying water supply around the primary and nodal roots.Annals of botany · 2013Article
- Vertex-element models for anisotropic growth of elongated plant organs.Frontiers in plant science · 2013Article
- Getting to the roots of it: Genetic and hormonal control of root architecture.Frontiers in plant science · 2013Article
- Multiscale systems analysis of root growth and development: modeling beyond the network and cellular scales.The Plant cell · 2012Review
- Plant cell growth in tissue.Plant physiology · 2010Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Primary growth is characterized by cell expansion facilitated by water uptake generating hydrostatic (turgor) pressure to inflate the cell, stretching the rigid cell walls. The multiple source theory of root growth hypothesizes that root growth involves transport of water both from the soil surrounding the growth zone and from the mature tissue higher in the root via phloem and protophloem. Here, protophloem water sources are used as boundary conditions in a classical, three-dimensional model of growth-sustaining water potentials in primary roots. The model predicts small radial gradients in water potential, with a significant longitudinal gradient. The results improve the agreement of theory with empirical studies for water potential in the primary growth zone of roots of maize (Zea mays). A sensitivity analysis quantifies the functional importance of apical phloem differentiation in permitting growth and reveals that the presence of phloem water sources makes the growth-sustaining water relations of the root relatively insensitive to changes in root radius and hydraulic conductivity. Adaptation to drought and other environmental stresses is predicted to involve more apical differentiation of phloem and/or higher phloem delivery rates to the growth zone.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.