Reclamation of saline soil by planting annual euhalophyte Suaeda salsa with drip irrigation: A three-year field experiment in arid northwestern China

Wang, Lei; Wang, Xu; Jiang, Li; Zhang, Ke; Tanveer, Mohsin; Chen, Tian; Zhao, Zhuo

doi:10.1016/j.ecoleng.2020.106090

Cited by 41 publications

(27 citation statements)

References 14 publications

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“…Phytoremediation, popularly known as vegetative bioremediation or biological reclamation, is a promising option over other remediation techniques, which involves cultivating certain salt-tolerant species to remove salt ions from the soil to restore salinity-degraded soils [ 20 , 126 , 133 ]. Its acceptance is increasing progressively due to numerous benefits.…”

Section: Halophyte-mediated Phytoremediation Of Salinity-affected Soilsmentioning

confidence: 99%

“…First, halophytic plants can help remove salts by taking salt ions through root system and store them in aboveground plant parts ( Figure 4 ). S. salsa has recently been successfully used to reclaim saline soil in the northwest of China due to its salt extraction potential, which ranges from 3.75 to 3.91 T ha −1 year −1 [ 133 ]. It is important to note that S. salsa can theoretically remove 3.0–3.8 T Na + ha −1 with a population density of 15 plants m −2 [ 134 ].…”

Section: Halophyte-mediated Phytoremediation Of Salinity-affected Soilsmentioning

confidence: 99%

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Adaptive Mechanisms of Halophytes and Their Potential in Improving Salinity Tolerance in Plants

Rahman

Mostofa

Keya

et al. 2021

IJMS

111

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Soil salinization, which is aggravated by climate change and inappropriate anthropogenic activities, has emerged as a serious environmental problem, threatening sustainable agriculture and future food security. Although there has been considerable progress in developing crop varieties by introducing salt tolerance-associated traits, most crop cultivars grown in saline soils still exhibit a decline in yield, necessitating the search for alternatives. Halophytes, with their intrinsic salt tolerance characteristics, are known to have great potential in rehabilitating salt-contaminated soils to support plant growth in saline soils by employing various strategies, including phytoremediation. In addition, the recent identification and characterization of salt tolerance-related genes encoding signaling components from halophytes, which are naturally grown under high salinity, have paved the way for the development of transgenic crops with improved salt tolerance. In this review, we aim to provide a comprehensive update on salinity-induced negative effects on soils and plants, including alterations of physicochemical properties in soils, and changes in physiological and biochemical processes and ion disparities in plants. We also review the physiological and biochemical adaptation strategies that help halophytes grow and survive in salinity-affected areas. Furthermore, we illustrate the halophyte-mediated phytoremediation process in salinity-affected areas, as well as their potential impacts on soil properties. Importantly, based on the recent findings on salt tolerance mechanisms in halophytes, we also comprehensively discuss the potential of improving salt tolerance in crop plants by introducing candidate genes related to antiporters, ion transporters, antioxidants, and defense proteins from halophytes for conserving sustainable agriculture in salinity-prone areas.

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Section: Halophyte-mediated Phytoremediation Of Salinity-affected Soilsmentioning

confidence: 99%

Section: Halophyte-mediated Phytoremediation Of Salinity-affected Soilsmentioning

confidence: 99%

Adaptive Mechanisms of Halophytes and Their Potential in Improving Salinity Tolerance in Plants

Rahman

Mostofa

Keya

et al. 2021

IJMS

111

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“…Suaeda salsa , an annual halophyte, grows in saline and alkaline soils on lake shores and beaches of Asia and Europe ( Zhu et al, 2003 ). This plant can accumulate high amount of salt in aboveground parts ( Zhao, 1991 ; Wang et al, 2020 ). S. salsa has been studied for its potential in phytoremediation of saline soils and as gourmet vegetable, edible oil, and animal feed ( Song and Wang, 2015 ; Shang et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Differential Responses of Dimorphic Seeds and Seedlings to Abiotic Stresses in the Halophyte Suaeda salsa

Zhang

et al. 2021

Front. Plant Sci.

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The period between seed germination and seedling establishment is one of the most vulnerable stages in the life cycle of annuals in the saline environments. Although germination characteristics of Suaeda salsa seeds have been reported, the comparative germination patterns of dimorphic seeds and seedling growth to different abiotic stresses remain poorly understood. In this study, germination responses of dimorphic seeds to light and temperature were compared. Meanwhile, responses of dimorphic seeds and thereafter seedlings of S. salsa to different concentrations of NaCl and Na2SO4 were also tested. The results showed that the light did not significantly affect germination percentage of brown seeds, but significantly promoted germination of black seeds. Brown seeds could reach high germination percentage over a wide temperature range, however, germination of black seeds gradually increased with the increase of temperature. Brown seeds had higher germination percentage and velocity than black seeds under the same salt conditions. However, black seeds had higher recovery germination than brown seeds when transferred to deionized water. Young seedlings had lower salt tolerance than germinating seeds. At the same concentrations, Na2SO4 had stronger inhibitory effect on seed germination and seedling growth than NaCl. This study comprehensively compared germination traits of dimorphic seeds and seedling growth of S. salsa, and then developed a conceptual model to explain their adaptation to harsh saline environment.

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“…Wu et al [ 10 ] reported that hydrocarbon-degrading and plant growth-promoting bacterial endophytes were effective to facilitate the phytoremediation of petroleum-contaminated soils with high salinity. Moreover, many other halophytes, such as Sedum aizoon L. [ 11 ], Suaeda salsa [ 12 ], Suaeda maritima and Sesuvium portulacastrum [ 13 ]), and Salicornia ramosissima [ 14 ], are reported to be favorable plants that could be used for the phytoremediation of saline- and heavy metals–contaminated soil.…”

Section: Introductionmentioning

confidence: 99%

Metabolomics Analyses Reveal Metabolites Affected by Plant Growth-Promoting Endophytic Bacteria in Roots of the Halophyte Mesembryanthemum crystallinum

Kataoka

Akashi

Taniguchi

et al. 2021

IJMS

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Mesembryanthemum crystallinum L. (common ice plant) is an edible halophyte. However, if ice plants are used to phytoremediate salinity soil, there are problems of slow initial growth, and a long period before active NaCl uptake occurs under higher salinity conditions. Application of endophytic bacteria may improve the problem, but there remain gaps in our understanding of how endophytic bacteria affect the growth and the biochemical and physiological characteristics of ice plants. The aims of this study were to identify growth-promoting endophytic bacteria from the roots of ice plants and to document the metabolomic response of ice plants after application of selected endophytic bacteria. Two plant growth-promoting endophytic bacteria were selected on the basis of their ability to promote ice plant growth. The two strains putatively identified as Microbacterium spp. and Streptomyces spp. significantly promoted ice plant growth, at 2-times and 2.5-times, respectively, compared with the control and also affected the metabolome of ice plants. The strain of Microbacterium spp. resulted in increased contents of metabolites related to the tricarboxylic acid cycle and photosynthesis. The effects of salt stress were alleviated in ice plants inoculated with the endobacterial strains, compared with uninoculated plants. A deeper understanding of the complex interplay among plant metabolites will be useful for developing microbe-assisted soil phytoremediation strategies, using Mesembryanthemum species.

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Reclamation of saline soil by planting annual euhalophyte Suaeda salsa with drip irrigation: A three-year field experiment in arid northwestern China

Cited by 41 publications

References 14 publications

Adaptive Mechanisms of Halophytes and Their Potential in Improving Salinity Tolerance in Plants

Adaptive Mechanisms of Halophytes and Their Potential in Improving Salinity Tolerance in Plants

Differential Responses of Dimorphic Seeds and Seedlings to Abiotic Stresses in the Halophyte Suaeda salsa

Metabolomics Analyses Reveal Metabolites Affected by Plant Growth-Promoting Endophytic Bacteria in Roots of the Halophyte Mesembryanthemum crystallinum

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