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Selenium and Salt Interactions in Black Gram (Vigna mungo L.): Ion Uptake, Antioxidant Defense System, and Photochemistry Efficiency

Niemi, Henrik and Hassan, Muhammad Jawad and Raza, Muhammad Ali and Khan, Imran and Meraj, Tehseen Ahmad and Ahmed, Mukhtar and Shah, Ghulam Abbas and Ansar, Muhammad and Awan, Samrah Afzal and Iqbal, Nasir and Khan, Nanak and Peng, Yan (2020). Selenium and Salt Interactions in Black Gram (Vigna mungo L.): Ion Uptake, Antioxidant Defense System, and Photochemistry Efficiency. . 9 , 467 , 1-16
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Abstract

Salinity is a major abiotic stress which limits crop production, especially under rainfed conditions. Selenium (Se), as an important micronutrient, plays a vital role in mitigating detrimental effects of different abiotic stresses. The objective of this research was to examine the effect of Se fertilization on black gram (Vigna mungo) under salt stress. Our results showed that salt stress (100 mM NaCl) in leaves significantly induced oxidative damage and caused a decline in relative water content, chlorophyll (Chl), stomatal conductance (gs), photochemical efficiency (Fv/Fm), sucrose, and reducing sugars. A low dose of Se (1.5 ppm) significantly reduced hydrogen peroxide content, malondialdehyde formation, cell membrane damage, and also improved antioxidative enzyme activities, including superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase, and glutathione peroxidase under salt stress. Se-treated plants exhibited higher Chl, gs, Fv/Fm, sucrose, and reducing sugars than untreated plants in response to salt stress. In addition, Se application enhanced Se uptake and reduced Na+ uptake, but Cl remained unaffected. Our results indicated that a low dose of Se effectively alleviated salt damage via inhibition of Na+ uptake and enhanced antioxidant defense resulting in a significant decrease in oxidative damage, and maintained gaseous exchange and PS II function for sucrose and reducing sugars accumulation in black gram.

Authors/Creators:Niemi, Henrik and Hassan, Muhammad Jawad and Raza, Muhammad Ali and Khan, Imran and Meraj, Tehseen Ahmad and Ahmed, Mukhtar and Shah, Ghulam Abbas and Ansar, Muhammad and Awan, Samrah Afzal and Iqbal, Nasir and Khan, Nanak and Peng, Yan
Title:Selenium and Salt Interactions in Black Gram (Vigna mungo L.): Ion Uptake, Antioxidant Defense System, and Photochemistry Efficiency
Year of publishing :2020
Volume:9
Article number:467
Number of Pages:16
Publisher:MDPI
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:ascorbate-glutathione cycle, micronutrient, fertilization, oxidative damage, chlorophyll, sugar
URN:NBN:urn:nbn:se:slu:epsilon-p-106827
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-106827
Additional ID:
Type of IDID
DOI10.3390/plants9040467
Web of Science (WoS)000539578900061
ID Code:17306
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Agricultural Research for Northern Sweden
(VH) > Dept. of Agricultural Research for Northern Sweden
Deposited By: SLUpub Connector
Deposited On:20 Aug 2020 08:47
Metadata Last Modified:20 Aug 2020 08:47

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