Selenium nanoparticle protected strawberry against salt stress through modifications in salicylic acid, ion homeostasis, antioxidant machinery, and photosynthesis performance

Since plant responses to selenium nanoparticles (nSe) had not been clarified, this study was carried out to evaluate the effects of nSe (10 and 100 μM) on photosynthesis performance, ion homeostasis, antioxidant system, and phenylpropanoids in strawberry exposed to salt stress. Inductively Coupled P...

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Bibliographic Details
Published in:Acta biologica cracoviensia. Series Botanica. 2020-01, Vol.62 (1), p.33
Main Authors: Soleymanzadeh, Reza, Iranbakhsh, Alireza, Habibi, Ghader, Ardebili, Zahra Oraghi
Format: Article
Language:English
Subjects:
Abiotic stress
Acids
Antioxidants
Caffeic acid
Catalase
Catechin
Hemostasis
Hemostatics
Homeostasis
Hydrogen peroxide
Inductively coupled plasma mass spectrometry
Lipid peroxidation
Lipids
Machinery
Mass spectroscopy
Nanoparticles
Oxidants
Oxidizing agents
Peroxidation
Phenylpropanoids
Photosynthesis
Photosystem II
Salicylic acid
Salinity
Salinity effects
Salinity tolerance
Salts
Selenium
Sodium chloride
Strawberries
Stress
Water splitting
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Summary:Since plant responses to selenium nanoparticles (nSe) had not been clarified, this study was carried out to evaluate the effects of nSe (10 and 100 μM) on photosynthesis performance, ion homeostasis, antioxidant system, and phenylpropanoids in strawberry exposed to salt stress. Inductively Coupled Plasma-Mass Spectroscopy analyses indicated that foliar-applied nSe can be taken up by leaves and trans-located to roots. Salinity led to an increase in Na concentration and reductions in Ca and K contents which were relieved by the nSe applications. Moreover, the nSe treatment at 10 μM alleviated the NaCl-induced lesion to PSII functioning, contributing to improvement in water-splitting complex (Fv/Fo) under salinity. The exposure to nSe at a concentration of 100 µM exhibited a moderate stress, determined by the increases in hydrogen peroxide (H2O2) and lipid peroxidation rate (membrane integrity index). The nSe10 treatment increased catalase activity and phenylpropanoid derivatives contents (salicylic acid, catechin, and caffeic acid) and decreased the content of oxidants under salinity condition. Consequently, nSe utilization at a suitable dose can be an effective method to alleviate signs of salt stress via improvements in photosynthesis, ion hemostasis, photosynthesis performance, salicylic acid (a vital signaling defensive hormone), and antioxidant machinery.
ISSN:0001-5296
1898-0295
DOI:10.24425/abcsb.2019.127751