Effects of increased seawater salinity irrigation on growth and quality of the edible halophyte Mesembryanthemum crystallinum L. under field conditions

Atzori, Giulia; Vos, Arjen C. de; Rijsselberghe, Marc van; Vignolini, Pamela; Rozema, J.; Mancuso, Stefano; Bodegom, Peter M. van

doi:10.1016/j.agwat.2017.03.020

Cited by 66 publications

(52 citation statements)

References 65 publications

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“…Salinity perturbs plant water relations and photosynthetic performance by reducing leaf gas exchange, the content of photosynthetic pigments, distorting chloroplast ultrastructure, and PSII (Betzen et al 2019;Pan et al 2021). However, moderate salinity stress can be beneficial as it induces production of secondary metabolites without adversely affecting growth of M. crystallinum (Herppich et al 2008;Atzori et al 2017).…”

Section: Introductionmentioning

confidence: 99%

LED spectral quality and NaCl salinity interact to affect growth, photosynthesis and phytochemical production of

Koh

Qin

2021

Funct. Plant Biol.

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The edible halophyte Mesembryanthemum crystallinum L. was grown at different NaCl salinities under different combined red and blue light-emitting diode (LED) light treatments. High salinity (500 mM NaCl) decreased biomass, leaf growth, and leaf water content. Interactions between LED ratio and salinity were detected for shoot biomass and leaf growth. All plants had F v /F m ratios close to 0.8 in dark-adapted leaves, suggesting that they were all healthy with similar maximal efficiency of PSII photochemistry. However, measured under the actinic light near or above the growth light, the electron transport rate (ETR) and photochemical quenching (qP) of M. crystallinum grown at 100 and 250 mM NaCl were higher than at 500 mM NaCl. Grown under red/blue LED ratios of 0.9, M. crystallinum had higher ETR and qP across all salinities indicating higher light energy utilisation. Crassulacean acid metabolism (CAM) was induced in M. crystallinum grown at 500 mM NaCl. CAM-induced leaves had much higher nonphotochemical quenching (NPQ), suggesting that NPQ can be used to estimate CAM induction. M. crystallinum grown at 250 and 500 mM NaCl had higher total chlorophyll and carotenoids contents than at 100 mM NaCl. Proline, total soluble sugar, ascorbic acid, and total phenolic compounds were higher in plants at 250 and 500 mM NaCl compared with those at 100 mM NaCl. An interaction between LED ratio and salinity was detected for proline content. Findings of this study suggest that both salinity and light quality affect productivity, photosynthetic light use efficiency, and proline accumulation of M. crystallinum.

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Section: Introductionmentioning

confidence: 99%

LED spectral quality and NaCl salinity interact to affect growth, photosynthesis and phytochemical production of

Koh

Qin

2021

Funct. Plant Biol.

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“…Salinity is a growing problem in several countries around the world [ 5 , 6 , 7 ]. Plants grown under salinity stress conditions accumulate excessive amounts of salt, generating physicochemical disturbances resulting in oxidative stress, suppression of photosynthesis, generation of reactive oxygen species (ROS), and metabolic disorders, all of which contribute to a decrease in plant growth and yields [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Seawater Stress Tolerance in Barley by the Endophytic Fungus Aspergillus ochraceus

et al. 2021

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Symbiotic plant-fungi interaction is a promising approach to alleviate salt stress in plants. Moreover, endophytic fungi are well known to promote the growth of various crop plants. Herein, seven fungal endophytes were screened for salt tolerance; the results revealed that Aspergillus ochraceus showed a great potentiality in terms of salt tolerance, up to 200 g L−1. The indole acetic acid (IAA) production antioxidant capacity and antifungal activity of A. ochraceus were evaluated, in vitro, under two levels of seawater stress, 15 and 30% (v/v; seawater/distilled water). The results illustrated that A. ochraceus could produce about 146 and 176 µg mL−1 IAA in 15 and 30% seawater, respectively. The yield of IAA by A. ochraceus at 30% seawater was significantly higher at all tryptophan concentrations, as compared with that at 15% seawater. Moreover, the antioxidant activity of ethyl acetate extract of A. ochraceus (1000 µg mL−1) at 15 and 30% seawater was 95.83 ± 1.25 and 98.33 ± 0.57%, respectively. Crude extracts of A. ochraceus obtained at 15 and 30% seawater exhibited significant antifungal activity against F. oxysporum, compared to distilled water. The irrigation of barley plants with seawater (15 and 30%) caused notable declines in most morphological indices, pigments, sugars, proteins, and yield characteristics, while increasing the contents of proline, malondialdehyde, and hydrogen peroxide and the activities of antioxidant enzymes. On the other hand, the application of A. ochraceus mitigated the harmful effects of seawater on the growth and physiology of barley plants. Therefore, this study suggests that the endophytic fungus A. ochraceus MT089958 could be applied as a strategy for mitigating the stress imposed by seawater irrigation in barley plants and, therefore, improving crop growth and productivity.

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“…Hence, among its main structural modifi cations, there are patterns of secondary thickening and formation of the internal phloem (Rajput et al 2008). Although, the phytodesalination capacity of the species S. verrucosum was lower than other reported species, such as Mesambryanthemum crystallinum (179.08 mg•g −1 DM) (Atzori et al 2017), it was higher than Suaeda paradoxa (44.27 mg•g −1 DM) (Hidri et al 2016) or Atriplex lentiformi (46.2 mg•g −1 DM) (Diaz et al 2013) to mention just a few; however, the duration of the process, the properties of the soil (salinity, sodicity and porosity), the number and the initial weight of the species per experimental unit could explain such discrepancy (Rahbi et al 2010).…”

Section: Parametersmentioning

confidence: 59%

Phytodesalination of a moderately saline soil combined with two inorganic amendments

et al. 2019

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The shortage of water and the increasing salinity are the main limiting environmental factors that directly affect the establishment and the development of crops. In this research, phytodesalination capacity of Sesuvium verrucosum was evaluated alone and in combination with agricultural gypsum (CaSO 4 ·2H 2 O) and Polisul-C, in order to remedy a moderately saline soil at greenhouse level and under nonleaching conditions. The treatments studied were the following: T1 (soil), T2 (soil + S. verrucosum), T3 (soil + S. verrucosum + Polisul-C), T4 (soil + S. verrucosum + CaSO 4 ·2H 2 O). Polyvinyl chloride (PVC) tubes filled with 8 kg of clay soil with an electrical conductivity of the saturation paste extract (ECe) of 6.21 dS.m -1 were used. Soil samples were analyzed to determine the ECe, and the soluble and interchangeable cations (Na + , K + ,

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Effects of increased seawater salinity irrigation on growth and quality of the edible halophyte Mesembryanthemum crystallinum L. under field conditions

Cited by 66 publications

References 65 publications

LED spectral quality and NaCl salinity interact to affect growth, photosynthesis and phytochemical production of

LED spectral quality and NaCl salinity interact to affect growth, photosynthesis and phytochemical production of

Enhancement of Seawater Stress Tolerance in Barley by the Endophytic Fungus Aspergillus ochraceus

Phytodesalination of a moderately saline soil combined with two inorganic amendments

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