Salinity responses of three halophytes from inland saltmarshes of Jaén (southern Spain)

Bueno, Milagros; Lendínez, María Lucía; Calero, Julio; Cordovilla, María del Pilar

doi:10.1016/j.flora.2020.151589

Cited by 33 publications

(33 citation statements)

References 67 publications

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“…Proline accumulation under NaCl treatment was also indicated for other halophytes, including some euhalophyte/partly recretohalophytes of the Limonium genus (5-to 25-fold) (Al Hassan et al 2017), Atriplex prostrata (up to 10-fold), Frankenia pulverulenta (up to fivefold) (Bueno et al 2020), and succulent halophytes, such as Plantago crassifolia (up to 70-fold) and Inula crithmoides (up to 100-fold) (Pardo-Domenech et al 2016). Under natural saline conditions, proline accumulates in the succulent halophyte/partly recretohalophyte Nitraria retusa (up to 30-fold) and the euhalophyte Salsola tetrandra (1.5-to 2-fold) (Youssef et al 2003).…”

Section: Proline and Potassium In Halophytesmentioning

confidence: 89%

“…For example, the proline content in barley did not change at 205 mM NaCl but increased at 410 mM NaCl (Voetberg and Stewart 1984), and the proline content in Elaeagnus oxycarpa did not change at 100 mM NaCl yet increased at 200-300 mM NaCl (Maimaiti et al 2014). Non-linear correlation of proline content and salinity level was found in salt-tolerant species Thermopsis turcica and Atriplex prostrata, where the proline content did not change at 100 mM NaCl but increased at 200 mM NaCl (Yildiztugay et al 2014;Bueno et al 2020). In two Mediterranean succulent halophytes, namely, Inula crithmoides and Plantago crassifolia, the proline content increased 70-100 times at 450-600 mM NaCl but did not change at lower NaCl levels (Pardo-Domenech et al 2016).…”

Section: Proline and Potassium In Halophytesmentioning

confidence: 95%

“…For example, there are species that are capable of accumulating a certain amount of sodium in leaves (as euhalophytes) under saline conditions while also excreting excess ions through their salt glands or salt hairs (as recretohalophytes), such as Limonium ssp. (Al Hassan et al 2017), Frankenia pulverulenta, and Atriplex prostrata (Bueno et al 2020) (Fig. 2).…”

Section: Proline and Potassium In Halophytesmentioning

confidence: 99%

“…High salinity levels were shown to stimulate the expression of genes associated with proline biosynthesis and inhibit genes associated with their degradation (Huang et al 2013). However, the correlation among proline accumulation, its proposed functions, and salinity adaptation is not always observed (Mansour and Ali 2017;Bueno et al 2020). In addition, it was shown that proline hyperaccumulation is species-specific and depends on the strength and duration of salt stress (Mansour and Ali 2017).…”

Section: Introductionmentioning

confidence: 99%

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Role of Proline and Potassium in Adaptation to Salinity in Different Types of Halophytes

Shuyskaya¹,

Рахманкулова²,

Toderich³

2020

Handbook of Halophytes

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This review considers the specific mechanisms of salinity adaptation in different salt-tolerant plant species. The differences among salt tolerance mechanisms are primarily associated with the organization of long-distance ion transport, including limitation of Na + and Cl À inflow to aboveground organs, their accumulation in vacuoles, or their excretion back to the environment (by salt glands on the leaf surface), maintaining a high K + /Na + ratio in the cytoplasm and additional synthesis of organic osmolytes. The review provides the current data on the role of proline, one of the most common organic osmolytes, in salinity adaptation in different plant species. Proline biosynthesis and catabolism regulation, as well as its multiple functions in plant cells, were described under normal and stress conditions. The changes in contents of proline and K + were analyzed in different types of halophytes, including salt-tolerant glycophytes, succulent euhalophytes, xerohalophytes, and recretohalophytes. Proline response to osmotic and ionic components of salinity, as well as its participation in fundamentally different adaptation mechanisms, was considered in different types of halophytes. The

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Section: Proline and Potassium In Halophytesmentioning

confidence: 89%

Section: Proline and Potassium In Halophytesmentioning

confidence: 95%

Section: Proline and Potassium In Halophytesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Role of Proline and Potassium in Adaptation to Salinity in Different Types of Halophytes

Shuyskaya¹,

Рахманкулова²,

Toderich³

2020

Handbook of Halophytes

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“…Soil moisture and salinity are the two most important factors affecting halophyte growth [10][11][12]; therefore, some researchers have focused on the relationship between the growth and population distribution of Suaeda salsa and salt stress and chemical elements in the soil [13][14][15][16][17][18]. Salt-induced vegetation growth and physiology response, such as changes in biomass and chlorophyll content, usually lead to corresponding changes in canopy reflectance spectra.…”

Section: Introductionmentioning

confidence: 99%

Monitoring Suaeda salsa Spectral Response to Salt Conditions in Coastal Wetlands: A Case Study in Dafeng Elk National Nature Reserve, China

Xia¹,

Zhang²,

Tian³

et al. 2020

Remote Sensing

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This paper reports on monitored Suaeda salsa spectral response to salt conditions in coastal wetlands, using spectral measurements and remotely sensed algorithms. Suaeda salsa seedlings were collected from the Dafeng Elk National Nature Reserve (DENNR) in Jiangsu Province, China. We treated 21 Suaeda salsa seedlings planted in pots with 7 different salt concentrations (n = 3 for each concentration) to assess their response to varying salt conditions. Various plant growth indicators, including chlorophyll content, fresh weight, dry weight, and canopy hyperspectral reflectance, were measured. One-way analysis of variance (ANOVA) and post hoc multiple comparisons of least-significant difference (LSD) were used to explore the physiological indicators of sensitivity to salt treatment. Red edge parameters and spectral reflectance indices were used to analyze spectral response to salt conditions and to investigate the potential for remotely sensing physiological parameters which are sensitive to salt conditions. The results indicated that among these physiological indicators, the total chlorophyll content differed significantly with salt conditions, being highest at 50 mmol/L, whereas the differences observed for the morphological parameters were highest at 200 mmol/L. In addition, new vegetation indices were significantly more responsive to salt concentrations than were traditional red edge parameters. The two vegetation indices, D854/D792 and (D792 − D854)/(D792 + D854), were the most sensitive to the total chlorophyll content, and these also strongly correlated with salt concentrations. An analysis of the responses of plant growth indicators to salt treatment showed that soil having a salt concentration of 50~200 mmol/L is most suitable for the growth of Suaeda salsa. These results suggest the potential for using remote sensing to effectively interpret the causes of salt-induced spectral changes in Suaeda salsa. This methodology also provides a new reference for the inversion model of estimating the total chlorophyll content of Suaeda salsa under different salt concentrations in similar coastal wetlands, whether in China or elsewhere.

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Sodium substitutes potassium requirements of sugar beet under saline–sodic conditions

Tayyab

Sanaullah

Wakeel

2023

J. Plant Nutr. Soil Sci.

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Background: Potassium (K) substitution by sodium (Na) in sugar beet nutrition has been investigated during the last two decades and promising results have been revealed. However, substitution is still not used in agriculture although it has been recommended that Na can replace K to a large degree, proposing an interesting fertilization strategy for such plants. This study investigates the feasibility of sugar beet production on saline-sodic soils considering Na as a substituent for K. Aims:The aim of this study is to develop a fertilizer strategy considering Na concentration in saline-sodic soils as a partial substituent to K fertilizer and to determine the level of substitution.Methods: Two saline-sodic soils (SAR15 and SAR19 representing sodium adsorption ratios 15 and 19 [mmol L -1 ] 1/2 , respectively) with low plant-available K were selected to investigate the substitution of K fertilizer requirements with indigenous soil Na. A pot experiment was conducted with 20 kg soil per pot having four treatments, that is, K A : recommended K; K B : recommended K-K equivalent to 2.5% of soil Na; K C : recommended K-K equivalent to 5% of soil Na; and control without K fertilizer application were established mixing potassium sulfate (K 2 SO 4 ) in the soil at the time of sugar beet sowing. The sugar beet plants were harvested 90 days after sowing. Results:The results revealed that total plant biomass was significantly improved in K B as compared to K A . This indicates that K requirement of sugar beet was substituted by Na, and K B provided optimum results on SAR15 as compared SAR19 considering all other K combinations. Conclusion:In sugar beet nutrition, K can be replaced by Na to a large degree on salinesodic soils under K-deficient conditions. Therefore, sugar beet production on marginal saline-sodic soil can be a win-win strategy boosting sugar beet production and reducing input cost.

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Salinity responses of three halophytes from inland saltmarshes of Jaén (southern Spain)

Cited by 33 publications

References 67 publications

Role of Proline and Potassium in Adaptation to Salinity in Different Types of Halophytes

Role of Proline and Potassium in Adaptation to Salinity in Different Types of Halophytes

Monitoring Suaeda salsa Spectral Response to Salt Conditions in Coastal Wetlands: A Case Study in Dafeng Elk National Nature Reserve, China

Sodium substitutes potassium requirements of sugar beet under saline–sodic conditions

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