Effect of salinity on growth, ion accumulation and the roles of ions in osmotic adjustment of two populations of Suaeda salsa

Song, Jie; Chen, Min; Feng, Gu; Jia, Yonghui; Wang, Baoshan; Zhang, Fusuo

doi:10.1007/s11104-008-9712-3

Cited by 96 publications

(70 citation statements)

References 33 publications

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“…Similarly in a field investigation, the root/shoot ratio of S. salsa from the intertidal zone was higher than that in the inland population (Table 1). S. salsa from the intertidal zone shows much fewer main stem branches and lower shoot dry mass compared with S. salsa from saline inland in older seedling stage (Song et al 2009), and similar result was shown from a field investigation (Liu 2006). The tide is one challenge for S. salsa growing in the intertidal zone during their germination and seedling stages.…”

Section: Discussionsupporting

confidence: 78%

Root morphology is related to the phenotypic variation in waterlogging tolerance of two populations of Suaeda salsa under salinity

Song

2009

Plant Soil

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The effects of waterlogging and salinity on seedling emergence, seedling growth and ion accumulation in a euhalophyte Suaeda salsa in an intertidal zone and on saline inland soil were investigated. Seedlings of S. salsa from the intertidal zone emerged more rapidly than those of the inland population under both waterlogged and drained conditions. Waterlogging and salinity had no adverse effects on seedling emergence of S. salsa from the intertidal zone, but markedly inhibited this parameter in the inland population. Waterlogging did not affect the seedling survival, shoot dry mass, and shoot height in high salinity in S. salsa from the intertidal zone, while the opposite trend was shown in the inland population. The root dry mass was higher in S. salsa from the intertidal zone as compared to the inland population, in waterlogged treatments by 1.9, 1.3, and 1.5 times in 1, 200, and 600 mM NaCl, respectively, and in drained treatments by 1.8, 2.3, and 3.0 times in 1, 200, and 600 mM NaCl, respectively. Waterlogging increased Na + and K + concentrations in high salinity, but waterlogging had no effect on Clconcentration in shoots of S. salsa from the intertidal zone. In all NaCl treatments, waterlogging had no effect on concentrations of these ions in shoots of S. salsa from the saline inland site. In a field investigation, the fresh mass of shoots and roots were lower, whereas the root/shoot ratio was 1.5 times higher in S. salsa from the intertidal zone, compared with the inland population. These findings indicate that S. salsa population from the intertidal zone is more waterlogging tolerant than the inland population. S. salsa from the intertidal zone produced relatively more root biomass and this might help anchor plants against tidal action in the intertidal zone. The physiological and morphological characteristics may determine the natural distributions of the two S. salsa populations in their different saline environments.

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Section: Discussionsupporting

confidence: 78%

Root morphology is related to the phenotypic variation in waterlogging tolerance of two populations of Suaeda salsa under salinity

Song

2009

Plant Soil

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“…Salinity damages plants mainly through the osmotic effect, the effect of specific ion toxicity and subsequently through nutritional stress (Song et al, 2009). In order to fight with the stress effects, the plants make materials which adjust osmotic pressure and accumulate them.…”

Section: Introductionmentioning

confidence: 99%

“…Meloni et al (2008) reported that resistance to salt is correlated negatively with Na + concentration and positively with K + concentration. Also, high K + /Na + in plant tissues, has been considered as an important physiological solution for salinity tolerance in some plants (Meloni et al, 2008;Song et al, 2009). Since different plants react to salinity in different ways, therefore, the study of salinity tolerance mechanisms in plants is necessary.…”

Section: Introductionmentioning

confidence: 99%

The effect of salinity on the growth, morphology and physiology of Echium amoenum Fisch. Mey.

Ramezani¹,

Sepanlou²,

Badi³

2011

Afr. J. Biotechnol.

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The salinity of water and soil decreases the growth and yield of agricultural products. Salinity affects many physiological and morphological processes of plant by influencing soil solution osmotic potential and ion absorption and accumulation of minerals. To evaluate the effect of salinity on some physiological and morphological characteristics of the medicinal plant of Echium amoenum, an experiment was carried out with completely random design in four replications. In this study, the effect of different levels of salinity, including control (non-saline water), 3, 6, 9 and 12 dS m -1 from natural saline water was examined on root length, leaf area, dry weight of roots and shoots, also on the amount of absorption of salts Na + , K + , Cl -, Ca 2+ , Mg 2+ and the ratio of Na + /K + and Ca 2+ /Na + in root and shoot of plants and proline and total soluble sugars of leaf in the vegetative growth stage in the greenhouses. Results indicated that the application of saline water reduces significantly all morphological traits under study. Also, as the salinity increased, the density of K + , Ca 2+ and Mg 2+ and the ratio of Na + /K + and Ca 2+ /Na + in root and shoot of E. amoenum declined. In contrast, by increasing salinity, Na + and Cl -concentration in roots and shoots significantly increased. As the salinity increased, proline concentration and leaf total soluble sugars also increased significantly compared with the control. The results showed that the accumulation of proline and soluble sugars are good indicators of salinity tolerance. Results also suggest that the plant resists against salinity through osmotic adjustment and ion absorption and sharing within its cells. This process is essential for the survival of plants in saline conditions.

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“…Four-week-old seedlings were transferred to hydroponic culture containers in half strength Hoagland's solution, which were changed daily, 12 plants were placed in each container filled with 1000 mL solution. After a week, the seedlings were treated with half strength Hoagland's solution containing 0, 100,150, 200, 300 mM NaCl (pH 6.12 ± 0.08) and 0, 50, 100, 150, 200 mM NaHCO 3 (pH 8.37 ± 0.15), the concentrations setting refer to previous studies on S.salsa, S. maritime and S. glauca (Flowers et al 1976;Song et al 2009). Five independent biological replicates were used in physiological analysis.…”

Section: Methodsmentioning

confidence: 99%

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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Effect of salinity on growth, ion accumulation and the roles of ions in osmotic adjustment of two populations of Suaeda salsa

Cited by 96 publications

References 33 publications

Root morphology is related to the phenotypic variation in waterlogging tolerance of two populations of Suaeda salsa under salinity

Root morphology is related to the phenotypic variation in waterlogging tolerance of two populations of Suaeda salsa under salinity

The effect of salinity on the growth, morphology and physiology of Echium amoenum Fisch. Mey.

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

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