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Diurnal water fluxes and growth patterns in potato tubers under drought stress

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Diurnal water fluxes and growth patterns in potato tubers under drought stress. / Huntenburg, Katharina; Pflugfelder, Daniel; Koller, Robert et al.
In: Plant and Soil, Vol. 507, No. 1-2, 01.02.2025, p. 269-282.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Huntenburg, K, Pflugfelder, D, Koller, R, Dodd, IC & van Dusschoten, D 2025, 'Diurnal water fluxes and growth patterns in potato tubers under drought stress', Plant and Soil, vol. 507, no. 1-2, pp. 269-282. https://doi.org/10.1007/s11104-023-06108-1

APA

Huntenburg, K., Pflugfelder, D., Koller, R., Dodd, I. C., & van Dusschoten, D. (2025). Diurnal water fluxes and growth patterns in potato tubers under drought stress. Plant and Soil, 507(1-2), 269-282. https://doi.org/10.1007/s11104-023-06108-1

Vancouver

Huntenburg K, Pflugfelder D, Koller R, Dodd IC, van Dusschoten D. Diurnal water fluxes and growth patterns in potato tubers under drought stress. Plant and Soil. 2025 Feb 1;507(1-2):269-282. Epub 2023 Jun 15. doi: 10.1007/s11104-023-06108-1

Author

Huntenburg, Katharina ; Pflugfelder, Daniel ; Koller, Robert et al. / Diurnal water fluxes and growth patterns in potato tubers under drought stress. In: Plant and Soil. 2025 ; Vol. 507, No. 1-2. pp. 269-282.

Bibtex

@article{bf34407d26f1439b86779068af88b48b,
title = "Diurnal water fluxes and growth patterns in potato tubers under drought stress",
abstract = "Background and aims Potato tubers comprise 83% water at harvest, but surprisingly few studies address tuber water relations in drying soil. This study aims to understand whether soil drying alters tuber water fluxes and their effect on tuber volume growth. Methods Tuber water content and volume growth were investigated every 4 h using magnetic resonance imaging (MRI) during soil drying and re-watering, with leaf gas exchange, leaf water potential and foliar abscisic acid (ABA) concentration measured concurrently. Results Tubers of well-watered plants showed a diurnal growth pattern with their volume and average water content (TWC) increasing overnight. Withholding irrigation caused typical shoot drought stress responses (e.g. stomatal closure), dampened fluctuations in total TWC and paused nocturnal volume growth. Irrespective of soil moisture, tubers lost water (likely to the shoot) during the daytime when the plant transpires, while tuber water loss to the soil was minimal. Re-watering restored tuber volume growth and average TWC due to root water uptake and transport to the tuber. Conclusions Potato tubers can supply water to the shoot. Nocturnal water influx needs to exceed daytime water efflux for net tuber volume growth, which should be considered in irrigation management.",
keywords = "Plant Science, Soil Science",
author = "Katharina Huntenburg and Daniel Pflugfelder and Robert Koller and Dodd, {Ian Charles} and {van Dusschoten}, Dagmar",
year = "2025",
month = feb,
day = "1",
doi = "10.1007/s11104-023-06108-1",
language = "English",
volume = "507",
pages = "269--282",
journal = "Plant and Soil",
issn = "0032-079X",
publisher = "Springer International Publishing AG",
number = "1-2",

}

RIS

TY - JOUR

T1 - Diurnal water fluxes and growth patterns in potato tubers under drought stress

AU - Huntenburg, Katharina

AU - Pflugfelder, Daniel

AU - Koller, Robert

AU - Dodd, Ian Charles

AU - van Dusschoten, Dagmar

PY - 2025/2/1

Y1 - 2025/2/1

N2 - Background and aims Potato tubers comprise 83% water at harvest, but surprisingly few studies address tuber water relations in drying soil. This study aims to understand whether soil drying alters tuber water fluxes and their effect on tuber volume growth. Methods Tuber water content and volume growth were investigated every 4 h using magnetic resonance imaging (MRI) during soil drying and re-watering, with leaf gas exchange, leaf water potential and foliar abscisic acid (ABA) concentration measured concurrently. Results Tubers of well-watered plants showed a diurnal growth pattern with their volume and average water content (TWC) increasing overnight. Withholding irrigation caused typical shoot drought stress responses (e.g. stomatal closure), dampened fluctuations in total TWC and paused nocturnal volume growth. Irrespective of soil moisture, tubers lost water (likely to the shoot) during the daytime when the plant transpires, while tuber water loss to the soil was minimal. Re-watering restored tuber volume growth and average TWC due to root water uptake and transport to the tuber. Conclusions Potato tubers can supply water to the shoot. Nocturnal water influx needs to exceed daytime water efflux for net tuber volume growth, which should be considered in irrigation management.

AB - Background and aims Potato tubers comprise 83% water at harvest, but surprisingly few studies address tuber water relations in drying soil. This study aims to understand whether soil drying alters tuber water fluxes and their effect on tuber volume growth. Methods Tuber water content and volume growth were investigated every 4 h using magnetic resonance imaging (MRI) during soil drying and re-watering, with leaf gas exchange, leaf water potential and foliar abscisic acid (ABA) concentration measured concurrently. Results Tubers of well-watered plants showed a diurnal growth pattern with their volume and average water content (TWC) increasing overnight. Withholding irrigation caused typical shoot drought stress responses (e.g. stomatal closure), dampened fluctuations in total TWC and paused nocturnal volume growth. Irrespective of soil moisture, tubers lost water (likely to the shoot) during the daytime when the plant transpires, while tuber water loss to the soil was minimal. Re-watering restored tuber volume growth and average TWC due to root water uptake and transport to the tuber. Conclusions Potato tubers can supply water to the shoot. Nocturnal water influx needs to exceed daytime water efflux for net tuber volume growth, which should be considered in irrigation management.

KW - Plant Science

KW - Soil Science

U2 - 10.1007/s11104-023-06108-1

DO - 10.1007/s11104-023-06108-1

M3 - Journal article

VL - 507

SP - 269

EP - 282

JO - Plant and Soil

JF - Plant and Soil

SN - 0032-079X

IS - 1-2

ER -