Beneficial role of exogenous silicon on yield, antioxidant systems, osmoregulation and oxidative stress in fenugreek (Trigonella foenum-graecum L.) under salinity stress

Beneficial role of exogenous silicon on yield, antioxidant systems, osmoregulation and oxidative stress in fenugreek (Trigonella foenum-graecum L.) under salinity stress

Purpose In the Earth’s crust, silicon (Si) is the most abundant element after oxygen, while, under salt stress, its role in the tolerance of aromatic and medicinal plants (AMPs) is not yet detailed. For this reason, in this study we evaluated the effect of exogenous Si on some tolerance-related para...

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Bibliographic Details
Published in:SILICON Vol. 15; no. 1; pp. 547 - 561
Main Authors: Lamsaadi, Nadia, El Moukhtari, Ahmed, Irouane, Ziati, Mouradi, Mohammed, El Hassni, Majida, Ghoulam, Cherki, Farissi, Mohamed
Format: Journal Article
Language:English
Published: Dordrecht Springer Netherlands 2023
Springer Nature B.V
Subjects:
Antioxidants
Calcium ions
Chemistry
Chemistry and Materials Science
Earth crust
Environmental Chemistry
Fenugreek
Herbal medicine
Hydrogen peroxide
Inorganic Chemistry
Lasers
Materials Science
Moisture content
Optical Devices
Optics
Original Paper
Oxidative stress
Parameters
Photonics
Polymer Sciences
Salinity
Silicon
Fenugreek
Tolerance
Silicon
Yield
Oxidative Stress
Salinity
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Summary:Purpose In the Earth’s crust, silicon (Si) is the most abundant element after oxygen, while, under salt stress, its role in the tolerance of aromatic and medicinal plants (AMPs) is not yet detailed. For this reason, in this study we evaluated the effect of exogenous Si on some tolerance-related parameters in salt-stressed fenugreek, as an important AMP. Methods 3 mM of exogenous Si was applied to assess its impact on plant biomass and on some tolerance-related parameters in fenugreek ( Trigonella foenum-graecum L.) grown under 150 mM NaCl stress. Results Results showed that salinity reduced growth parameters, relative water content, photosystem II efficiency, stomatal conductance and K + and Ca 2+ contents, while it increased the Na + content, which could explain the obtained reduction in fenugreek growth and yield. However, Si supply reversed the depressive effects of salinity and improved fenugreek growth and yield. Adding exogenous Si also caused a significant reduction in Na + content and increased K + and Ca 2+ concentrations. The content of malonyldialdehyd and hydrogen peroxide and the level of electrolyte leakage were significantly increased in salt-stressed fenugreek, while were significantly decreased after Si supplementation. The reduction in oxidative stress markers in Si-treated plants was correlated with a significant increase in both enzymatic and non-enzymatic antioxidant systems and an important accumulation of compatible solutes. Conclusion Therefore, exogenous Si was directly involved in the central defensive mechanisms to enhance salt tolerance of fenugreek, thus its application could be a promoting strategy to alleviate the damages of salinity on fenugreek growth and yield.
ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-022-02034-6