Physiological responses and adaptive strategies of wheat seedlings to salt and alkali stresses

Li, Xiaoyü; Lü, Jiaju; Zhang, Yuting; Lin, Jixiang; Mu, Changkao

doi:10.1111/j.1747-0765.2009.00408.x

Cited by 24 publications

(23 citation statements)

References 15 publications

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“…In our study, under 150 mM NaHCO 3 and NaCl conditions, the fresh weight of S. corniculata declined slightly, the plants responded to alkali and salt stress by a significant inhibition of growth with increasing concentration treatment, and the phenotype changes caused by NaHCO 3 stress were more obvious than the results of NaCl stress. These results indicated that the injurious effects of alkali stress on the growth of S. corniculata were more severe than for salt stress, which was consistent with previous reports (Li et al 2009;Guo et al 2009). …”

Section: Discussionsupporting

confidence: 82%

Integrated proteomics and metabolomics for dissecting the mechanism of global responses to salt and alkali stress in Suaeda corniculata

et al. 2016

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Background and aims Soil alkalinity and salinity are two of the most common environmental stress factors that impact plant growth and productivity. S. corniculata is native to the saline-alkali soil of Northeast China which shows a higher alkali tolerance than other suaeda plants. It will be very important to identify the effect of salt and alkali stress on S. corniculata through proteomics and metabolomics analysis to improve understanding of the resistance of plants. Methods S. corniculata seedlings were exposed to salt and alkali stress for 72 h, respectively. Metabolic changes were quantified by conducting MS-based proteomics and NMR-based metabolomics analysis.Results The response of S. corniculata to salt stress was distinct from that of plants subjected to alkali stress at both physiological and molecular levels. The integrated-omic studies identified 22 and 19 differentially expressed proteins and metabolites mainly involved in carbohydrate metabolism and amino acid metabolism. Conclusions On account of the up-regulation of energy metabolism and higher accumulation of organic osmolytes, S. corniculata shows high pH resistance when it suffers alkali stress. These findings provide insights into the different regulatory mechanisms in halophyte S. corniculata response to salt and alkali stresses.

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Section: Discussionsupporting

confidence: 82%

Integrated proteomics and metabolomics for dissecting the mechanism of global responses to salt and alkali stress in Suaeda corniculata

et al. 2016

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“…In this study, both species accumulated high levels of Na + , while the K + concentration decreased (Figure 2). Similar results were found in wheat by Li et al [38] and barley by Yang et al [39]. Under such conditions, most plants can accumulate proline and soluble sugars in the protoplasm to maintain their osmotic balance.…”

Section: Physiological Response Of Annual and Perennial Ryegrass Undesupporting

confidence: 84%

Physiological and Proteomic Analyses Reveal Adaptive Mechanisms of Ryegrass (Annual vs. Perennial) Seedlings to Salt Stress

Peng

Yan

et al. 2019

Agronomy

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Ryegrass has a relatively high salt tolerance and is considered to be a promising species for both foraging and turf purposes in salt-affected soils in China. While annual ryegrass and perennial ryegrass are two different species, they have similar genomes. However, little is known about their physiological and molecular response mechanisms to salinity stress. Here, biomass, chlorophyll fluorescence, and inorganic ion and organic solute content were measured. 2-DE-based proteomic technology was then used to identify the differentially expressed proteins in the salt-treated seedlings. The results showed that salt stress reduced growth and photosynthesis in the seedlings of both species, but much more so in annual ryegrass. With increasing salinity, the Na+ concentration increased while the K+ concentration decreased in both species, and the sugars and proline increased as the primary organic solutes used to cope with osmotic stress. Additionally, proteomic analysis revealed 33 and 37 differentially expressed proteins in annual and perennial ryegrass, respectively. Most of the identified proteins were involved in carbohydrate and energy metabolism, photosynthesis, genetic information processes, amino acid metabolism, stress defense, and protein synthesis and folding. The results suggest that the two-ryegrass species had different physiological and proteomic responses. These findings can provide new insights into physiological mechanisms by which ryegrass species respond to salt stress.

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“…Accumulation of betaine, proline, soluble sugar and compartmentalize of Na + ions into the vacuole are considered as the basic strategies for plant re-established cellular homeostasis under alkaline stress (Li et al 2009;Yang et al 2009). MDA is one of the end-products of oxidation unsaturated fatty acids in cellular membranes.…”

Section: Discussionmentioning

confidence: 99%

“…Yang et al (2007) reported that alkalinity stress can inhibit uptake of inorganic anions such as Cl -, NO 3 -and H 2 PO 4 -, largely affect the selective absorption of K + -Na + , and disrupt the ionic balance. However, accumulation of compatible solutes, such as betaine, proline and soluble sugar into the vacuole are considered as the basic strategies for plant re-established cellular homeostasis under alkalinity stress (Li et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Germination and Biochemical Responses to Alkalinity Stress in Two Sesame Cultivars

Mahdavi¹

2016

Plant Breeding and Seed Science

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In this study, the effect of different alkaline concentrations (0, 10, 20, 30, 40, 50, 60 mM) on germination and biochemical characteristics of the two sesame (Sesamum indicum L.) cultivares (Dashtestan and GL-13) which are registered cultivars of Iran were investigated. The experiment was carried out in a completely randomized design with three replications. Results showed that , germination percentage, germination rate, shoot length and dry weight, root length and dry weight and K + content decreased, whereas, malondialdehyde (MDA), proline, total soluble sugars and Na + contents increased with increasing alkalinity stress. GL-13 cultivar had the least root and shoot length, proline and K + content than Dashtestan.

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Physiological responses and adaptive strategies of wheat seedlings to salt and alkali stresses

Cited by 24 publications

References 15 publications

Integrated proteomics and metabolomics for dissecting the mechanism of global responses to salt and alkali stress in Suaeda corniculata

Integrated proteomics and metabolomics for dissecting the mechanism of global responses to salt and alkali stress in Suaeda corniculata

Physiological and Proteomic Analyses Reveal Adaptive Mechanisms of Ryegrass (Annual vs. Perennial) Seedlings to Salt Stress

Germination and Biochemical Responses to Alkalinity Stress in Two Sesame Cultivars

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