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Germination and stress tolerance of oats treated with pulsed electric field at different phases of seedling growth

Al-Khafaji, Alia Hussain LU ; Kwao, Stephen ; Gómez Galindo, Federico LU and Sajeevan, Radha Sivarajan (2024) In Bioelectrochemistry 158.
Abstract

This study explores the impact of pulsed electric field (PEF) application on oat seedling growth and stress tolerance. PEF treatment (99 monopolar, rectangular pulses lasting 10 µs each, with a frequency of 13 Hz and a nominal electric field strength of 2250 V/cm) was applied at two growth stages: (i) when the seedlings had 0.2 cm roots emerging from the kernel, and (ii) when they had a 0.4 cm shoot emerging from the kernel. Post-treatment, the seedlings were hydroponically grown for 8 days. To induce stress, the hydroponic medium was augmented with PEG (15 %) to induce drought stress and NaCl (150 mM) to induce salinity stress. Results demonstrate that applying PEF improved the growth of the root and shoot of oat seedlings. This effect... (More)

This study explores the impact of pulsed electric field (PEF) application on oat seedling growth and stress tolerance. PEF treatment (99 monopolar, rectangular pulses lasting 10 µs each, with a frequency of 13 Hz and a nominal electric field strength of 2250 V/cm) was applied at two growth stages: (i) when the seedlings had 0.2 cm roots emerging from the kernel, and (ii) when they had a 0.4 cm shoot emerging from the kernel. Post-treatment, the seedlings were hydroponically grown for 8 days. To induce stress, the hydroponic medium was augmented with PEG (15 %) to induce drought stress and NaCl (150 mM) to induce salinity stress. Results demonstrate that applying PEF improved the growth of the root and shoot of oat seedlings. This effect was more pronounced when applied to more developed seedlings. When PEF was applied during the later stage of germination, seedlings exposed to salinity stress showed enhanced shoot growth compared to the control. Under the studied conditions, the application of PEF had no impact on the growth of seedlings under drought stress.

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author
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type
Contribution to journal
publication status
published
subject
keywords
Drought stress, Electrostimulation, Rooting, Salinity stress, Shoot elongation
in
Bioelectrochemistry
volume
158
article number
108692
publisher
Elsevier
external identifiers
  • pmid:38547778
  • scopus:85189041269
ISSN
1567-5394
DOI
10.1016/j.bioelechem.2024.108692
language
English
LU publication?
yes
id
26896cdf-1a8d-4f9d-ade3-1146a1c417f7
date added to LUP
2024-04-17 12:57:08
date last changed
2024-04-18 03:00:10
@article{26896cdf-1a8d-4f9d-ade3-1146a1c417f7,
  abstract     = {{<p>This study explores the impact of pulsed electric field (PEF) application on oat seedling growth and stress tolerance. PEF treatment (99 monopolar, rectangular pulses lasting 10 µs each, with a frequency of 13 Hz and a nominal electric field strength of 2250 V/cm) was applied at two growth stages: (i) when the seedlings had 0.2 cm roots emerging from the kernel, and (ii) when they had a 0.4 cm shoot emerging from the kernel. Post-treatment, the seedlings were hydroponically grown for 8 days. To induce stress, the hydroponic medium was augmented with PEG (15 %) to induce drought stress and NaCl (150 mM) to induce salinity stress. Results demonstrate that applying PEF improved the growth of the root and shoot of oat seedlings. This effect was more pronounced when applied to more developed seedlings. When PEF was applied during the later stage of germination, seedlings exposed to salinity stress showed enhanced shoot growth compared to the control. Under the studied conditions, the application of PEF had no impact on the growth of seedlings under drought stress.</p>}},
  author       = {{Al-Khafaji, Alia Hussain and Kwao, Stephen and Gómez Galindo, Federico and Sajeevan, Radha Sivarajan}},
  issn         = {{1567-5394}},
  keywords     = {{Drought stress; Electrostimulation; Rooting; Salinity stress; Shoot elongation}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Bioelectrochemistry}},
  title        = {{Germination and stress tolerance of oats treated with pulsed electric field at different phases of seedling growth}},
  url          = {{http://dx.doi.org/10.1016/j.bioelechem.2024.108692}},
  doi          = {{10.1016/j.bioelechem.2024.108692}},
  volume       = {{158}},
  year         = {{2024}},
}