Effect of NaCl-Induced Salinity Stress on Growth, Osmolytes and Enzyme Activities in Wheat Genotypes

Datir, Sagar S.; Singh, Neha; Joshi, Ila

doi:10.1007/s00128-020-02795-z

Cited by 21 publications

(14 citation statements)

References 20 publications

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“…The highest reduction was observed in 'VBN(Gg)3'. A similar decrease in SV was observed in rice varieties subjected to salt stress (Datir et al, 2020).…”

Section: Effect Of Salt Stress On Seedling Developmentsupporting

confidence: 78%

Morphological, physiological, and biochemical responses to NaCl-induced salt stress in mungbean (Vigna radiata L.) varieties

Mankar¹,

Wayase²,

Shelke³

et al. 2021

Not Sci Biol

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Seventeen mungbean varieties [Vigna radiata (L.) R. Wilczek] were subjected to 100-400 mM salinity stress at the germination stage, and the indices of seed germination and early seedling growth were analysed. With the increasing salinity, seed germination and seedling growth attributes were affected in all varieties. Principal component analysis and hierarchical cluster analysis of varietal responses on the germination and seeding growth attributes at 400 mM NaCl separated seventeen varieties into four distinct clusters. Principal component analysis at lower salt stress levels indicated that the attributes of germination and early seedling growth are reliable to identify salt-tolerant mungbean varieties. In contrast, only germination attributes are reliable at higher salinity levels. Two salt-susceptible and salt-tolerant varieties were further assessed for NaCl-induced physiological and biochemical changes. Levels of proteins, secondary metabolites, osmolyte, and antioxidants were increased at lower salt concentrations but reduced at higher salt concentrations. Photosynthetic pigments decreased and membrane damage increased under salinity. Varieties that showed tolerance to salt stress can be used in salinity-affected agriculture fields after validating their salt tolerance in field experiments.

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“…The highest reduction was observed in 'VBN(Gg)3'. A similar decrease in SV was observed in rice varieties subjected to salt stress (Datir et al, 2020).…”

Section: Effect Of Salt Stress On Seedling Developmentsupporting

confidence: 78%

Morphological, physiological, and biochemical responses to NaCl-induced salt stress in mungbean (Vigna radiata L.) varieties

Mankar¹,

Wayase²,

Shelke³

et al. 2021

Not Sci Biol

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“…The plants grown under salt stress show disturbance in nutrients and ion homeostasis, osmotic balance and oxidative stress resulting in the excess formation of ROS 2 , 30 , 31 . Soil salinity has been found to influence wheat production significantly by adversely affecting photosynthetic efficiency and growth 32 , 33 . Salt stress affects the photosynthesis efficiency of plants through its effect on the expression of psbA and psbB of Photosystem II (PS II) 34 .…”

Section: Introductionmentioning

confidence: 99%

Ethylene reduces glucose sensitivity and reverses photosynthetic repression through optimization of glutathione production in salt-stressed wheat (Triticum aestivum L.)

Sehar

Iqbal

Khan

et al. 2021

Sci Rep

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Ethylene plays a crucial role throughout the life cycle of plants under optimal and stressful environments. The present study reports the involvement of exogenously sourced ethylene (as ethephon; 2-chloroethyl phosphonic acid) in the protection of the photosynthetic activity from glucose (Glu) sensitivity through its influence on the antioxidant system for adaptation of wheat (Triticum aestivum L.) plants under salt stress. Ten-day-old plants were subjected to control and 100 mM NaCl and treated with 200 µl L−1 ethephon on foliage at 20 days after seed sowing individually or in combination with 6% Glu. Plants receiving ethylene exhibited higher growth and photosynthesis through reduced Glu sensitivity in the presence of salt stress. Moreover, ethylene-induced reduced glutathione (GSH) production resulted in increased psbA and psbB expression to protect PSII activity and photosynthesis under salt stress. The use of buthionine sulfoximine (BSO), GSH biosynthesis inhibitor, substantiated the involvement of ethylene-induced GSH in the reversal of Glu-mediated photosynthetic repression in salt-stressed plants. It was suggested that ethylene increased the utilization of Glu under salt stress through its influence on photosynthetic potential and sink strength and reduced the Glu-mediated repression of photosynthesis.

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“…1c, d). Excessive accumulation of Na + in leaf tissues is a determining factor for reduction in RWC, total chlorophyll, glycine betaine, proline, and soluble sugar contents along with antioxidant enzyme activities (Sairam et al 2002;Ashraf and Harris 2004;Datir et al 2020). In this study, salt-tolerant cultivar showed higher RWC, chlorophyll, glycine betaine, and soluble sugar contents with lower fluorescent signals (H 2 O 2 production) representing lower accumulation of Na + in leaf tissues than in salt-sensitive cultivar.…”

Section: Morphological Physiological and Biochemical Responses To Smentioning

confidence: 59%

Transcriptome skimming of lentil (Lens culinaris Medikus) cultivars with contrast reaction to salt stress

Singh

Sharma

et al. 2021

Funct Integr Genomics

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Extensive transcriptomic skimming was conducted to decipher molecular, morphological, physiological, and biochemical responses in salt-tolerant (PDL-1) and salt-sensitive (L-4076) cultivars under control (0 mM NaCl) and salinity stress (120 mM NaCl) conditions at seedling stage. Morphological, physiological, and biochemical studies revealed that PDL-1 exhibited no salt injury and had higher K + / Na + ratio, relative water content (RWC), chlorophyll, glycine betaine, and soluble sugars in leaves while lower H 2 O 2 induced fluorescence signals in roots as compared to L-4076. Transcriptomic profile revealed a total of 17,433 significant differentially expressed genes (DEGs) under different treatments and cultivar combinations that include 2557 upregulated and 1533 downregulated transcripts between contrasting cultivars under salt stress. Accuracy of transcriptomic analysis was validated through quantification of 10 DEGs via quantitative real-time polymerase chain reaction (qRT-PCR). DEGs were functionally characterized by Gene Ontology (GO) analysis and assigned to various metabolic pathways using MapMan. DEGs were found to be significantly associated with phytohormone-mediated signal transduction, cellular redox homoeostasis, secondary metabolism, nitrogen metabolism, and cellular stress signaling. The present study revealed putative molecular mechanism of salinity tolerance in lentil together with identification of 5643 simple sequence repeats (SSRs) and 176,433 single nucleotide polymorphisms (SNPs) which can be utilized to enhance linkage maps density along with detection of quantitative trait loci (QTLs) associated with traits of interests. Stress-related pathways identified in this study divulged plant functioning that can be targeted to improve salinity stress tolerance in crop species.

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Effect of NaCl-Induced Salinity Stress on Growth, Osmolytes and Enzyme Activities in Wheat Genotypes

Cited by 21 publications

References 20 publications

Morphological, physiological, and biochemical responses to NaCl-induced salt stress in mungbean (Vigna radiata L.) varieties

Morphological, physiological, and biochemical responses to NaCl-induced salt stress in mungbean (Vigna radiata L.) varieties

Ethylene reduces glucose sensitivity and reverses photosynthetic repression through optimization of glutathione production in salt-stressed wheat (Triticum aestivum L.)

Transcriptome skimming of lentil (Lens culinaris Medikus) cultivars with contrast reaction to salt stress

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