Effects of Salinity Stress on Physiological Performance of Various Wheat and Barley Cultivars

Izadi, Mohammad Hossein; Rabbani, Javad; Emam, Y.; Pessarakli, Mohammad; Tahmasebi, Ahmad

doi:10.1080/01904167.2013.867980

Cited by 46 publications

(27 citation statements)

References 41 publications

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“…Various abiotic and biotic stresses affect numerous biochemical and physiological pathways in plants and ultimately responsible for yield loss (Munns and Tester, 2008; Prasad et al, 2011; Pradhan et al, 2012; Izadi et al, 2014). The calcium signaling has been reported as an important mechanism for these kinds of stress sensing in plants (Tuteja and Sopory, 2008; Kader and Lindberg, 2010; Zhang et al, 2014a).…”

Section: Resultsmentioning

confidence: 99%

Ca2+/Cation Antiporters (CaCA): Identification, Characterization and Expression Profiling in Bread Wheat (Triticum aestivum L.)

et al. 2016

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The Ca2+/cation antiporters (CaCA) superfamily proteins play vital function in Ca2+ ion homeostasis, which is an important event during development and defense response. Molecular characterization of these proteins has been performed in certain plants, but they are still not characterized in Triticum aestivum (bread wheat). Herein, we identified 34 TaCaCA superfamily proteins, which were classified into TaCAX, TaCCX, TaNCL, and TaMHX protein families based on their structural organization and evolutionary relation with earlier reported proteins. Since the T. aestivum comprises an allohexaploid genome, TaCaCA genes were derived from each A, B, and D subgenome and homeologous chromosome (HC), except chromosome-group 1. Majority of genes were derived from more than one HCs in each family that were considered as homeologous genes (HGs) due to their high similarity with each other. These HGs showed comparable gene and protein structures in terms of exon/intron organization and domain architecture. Majority of TaCaCA proteins comprised two Na_Ca_ex domains. However, TaNCLs consisted of an additional EF-hand domain with calcium binding motifs. Each TaCaCA protein family consisted of about 10 transmembrane and two α-repeat regions with specifically conserved signature motifs except TaNCL, which had single α-repeat. Variable expression of most of the TaCaCA genes during various developmental stages suggested their specified role in development. However, constitutively high expression of a few genes like TaCAX1-A and TaNCL1-B indicated their role throughout the plant growth and development. The modulated expression of certain genes during biotic (fungal infections) and abiotic stresses (heat, drought, salt) suggested their role in stress response. Majority of TaCCX and TaNCL family genes were found highly affected during various abiotic stresses. However, the role of individual gene needs to be established. The present study unfolded the opportunity for detail functional characterization of TaCaCA proteins and their utilization in future crop improvement programs.

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Section: Resultsmentioning

confidence: 99%

Ca2+/Cation Antiporters (CaCA): Identification, Characterization and Expression Profiling in Bread Wheat (Triticum aestivum L.)

et al. 2016

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“…It is well documented that a greater degree of salt tolerance in plants is associated with a more efficient system for selective uptake of K + over Na + (Tester and Davenport, 2003;Islam et al,2011). The decrease in K + occurs due to the presence of excessive Na + in the growth medium; high external Na + content is known to have an antagonistic effect on K + uptake in plants (Ashraf, 2004;Izadi et al, 2014). It was reported that antagonism between the absorption of K + and Na + occurs at the root surface under salinity stress (Ahmadi et al, 2009).…”

Section: Adverse Effects Of Salinity On Morphological Physiologicalmentioning

confidence: 99%

“…However, the severity of drought is a non-uniform phenomenon that adversely influences plants, depending on the plant's development stage at the time of its occurrence (Martiniello and Teixeira da Silva, 2011;Hossain et al, 2012b); high temperatures combined with drought cause considerable damage to on crops by shortening plant life span and consequently reducing yield (Vollenweider and Gunthardt-Goerg, 2005;Martiniello and Teixeira da Silva, 2011). Although barley is a salt-tolerant field crop, its growth and development is severely affected by ionic and osmotic potential (ψ) in predominantly saline soils (Izadi et al, 2014;Fayez and Bazaid, 2014). Salinity significantly reduces the production potential of most crops including barley also and can result in disruption of osmotic effects, ion-specific stress, ionic imbalance, and oxidative stress (Tabatabaei and Ehsanzadeh, 2016).…”

Section: Introductionmentioning

confidence: 99%

Drought and salinity stresses in barley: Consequences and mitigation strategies

et al. 2019

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Recent trends show reductions in crop productivity worldwide due to severe climatic change. Different abiotic stresses significantly affect the growth and development of plants, leading to decreased crop yields. Salinity and drought stresses are the most common abiotic stresses, especially in arid and semi-arid regions, and are major constraints for barley production. The present review attempts to provide comprehensive information related to barley plant responses and adaptations to drought and salinity stresses, including physiological and agronomic, in order to alleviate the adverse effect of stresses in barley. These stresses reduce assimilation rates, as they decrease stomatal conductance, disrupt photosynthetic pigments, reduce gas exchange, enhance production of reactive oxygen species, and lead to decreased plant growth and productivity. This review focuses on the strategies plants use to respond and adapt to drought and salinity stress. Plants utilize a range of physiological and biochemical mechanisms such as adaptation strategies, through which the adverse effects can be mitigated. These include soil management practices, crop establishment, as well as foliar application of anti-oxidants and growth regulators that maintain an appropriate level of water in the leaves to facilitate adjustment of osmotic and stomatal performance. The present review highlighted the adverse effect of drought and salinity stresses barley and their mitigation strategies for sustainable barley production under changing climate. They review also underscored that exogenous application of different antioxidants could play a significant role in the alleviation of salinity and drought stress in plant systems.

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“…In addition, as a limiting factor, salinity stress can adversely affect normal plant establishment (Houle et al, 2001;Pessarakli et al, 2015), reduce plant growth and development (Panuccio et al, 2014;Izadi et al, 2014;Pessarakli, 2015;Pakar et al, 2016), stunt plant growth and survival (Parida et al, 2005;Akhzari et al, 2016) in different ways, e.g., photosynthesis, nutritional condition, metabolism, drought stress, oxidative stress, membrane damage, and limited cell division (Aflaki Manjili et al, 2012;Houle et al, 2001;Panuccio et al, 2014). However, osmotic and ionic toxicity are more harmful than aforementioned factors (Panuccio et al, 2014).…”

Section: Investigation Of Seed Germination Indices For Early Selectiomentioning

confidence: 99%

Investigation of seed germination indices for early selection of salinity tolerant genotypes: a case study in wheat

Aflaki

Sedghi

Pazuki

et al. 2017

Emir. J. Food Agric

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Effects of Salinity Stress on Physiological Performance of Various Wheat and Barley Cultivars

Cited by 46 publications

References 41 publications

Ca2+/Cation Antiporters (CaCA): Identification, Characterization and Expression Profiling in Bread Wheat (Triticum aestivum L.)

Ca2+/Cation Antiporters (CaCA): Identification, Characterization and Expression Profiling in Bread Wheat (Triticum aestivum L.)

Drought and salinity stresses in barley: Consequences and mitigation strategies

Investigation of seed germination indices for early selection of salinity tolerant genotypes: a case study in wheat

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