Projects per year
Abstract
Summary: Plant roots must exclude almost all of the Na+ and Cl– in saline soil while taking up water, otherwise these ions would build up to high concentrations in leaves. Plants evaporate c. 50 times more water than they retain, so 98% exclusion would result in shoot NaCl concentrations equal to that of the external medium. Taking up just 2% of the NaCl allows a plant to osmotically adjust the Na+ and Cl– in vacuoles, while organic solutes provide the balancing osmotic pressure in the cytoplasm. We quantify the costs of this exclusion by roots, the regulation of Na+ and Cl– transport through the plant, and the costs of osmotic adjustment with organic solutes in roots.
Original language | English |
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Pages (from-to) | 1091-1096 |
Journal | New Phytologist |
Volume | 225 |
Issue number | 3 |
DOIs | |
Publication status | Published - Feb 2020 |
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Projects
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ARC Centre of Excellence in Plant Energy Biology 2014 (CPEB2)
Millar, H., Pogson, B., Tyerman, S., Small, I., Whelan, J., Borevitz, J., Lister, R., Atkin, O. & Munns, R.
1/01/14 → 31/05/21
Project: Research
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Legumes for Sustainable Agriculture
Colmer, T., Day, D., Kaiser, B., Trethowan, R., Mathesius, U., Denton, M., Barbour, M. & Adams, M.
1/01/16 → 31/12/20
Project: Research