Soil salinization management for sustainable development: A review

Singh, Ajay

doi:10.1016/j.jenvman.2020.111383

Cited by 192 publications

(62 citation statements)

References 203 publications

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“…Excessive accumulation of sodium in plants confers both ion toxicity and osmotic stress, which in turn dramatically affect the morphological, physiological, biochemical, and metabolic status of plants [ 1 ]. Currently, more than 20% of the irrigated lands in the world are threatened by high salinity, and the area of saline soils is increasing gradually every year accompanied by the global climate change and poor irrigation practices [ 2 , 3 , 4 ]. It is expected the global population will reach to nearly 10 billion in 2050, and to meet the increasing food demand in future, the utilization of saline soils to grow major crops tends to be inevitable.…”

Section: Introductionmentioning

confidence: 99%

Maintenance of Cell Wall Integrity under High Salinity

Liu

Zhang

Long

et al. 2021

IJMS

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Cell wall biosynthesis is a complex biological process in plants. In the rapidly growing cells or in the plants that encounter a variety of environmental stresses, the compositions and the structure of cell wall can be dynamically changed. To constantly monitor cell wall status, plants have evolved cell wall integrity (CWI) maintenance system, which allows rapid cell growth and improved adaptation of plants to adverse environmental conditions without the perturbation of cell wall organization. Salt stress is one of the abiotic stresses that can severely disrupt CWI, and studies have shown that the ability of plants to sense and maintain CWI is important for salt tolerance. In this review, we highlight the roles of CWI in salt tolerance and the mechanisms underlying the maintenance of CWI under salt stress. The unsolved questions regarding the association between the CWI and salt tolerance are discussed.

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Section: Introductionmentioning

confidence: 99%

Maintenance of Cell Wall Integrity under High Salinity

Liu

Zhang

Long

et al. 2021

IJMS

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“…Damage from these stresses is responsible for significant economic losses worldwide. Salinity is a key environmental abiotic stress (Liao et al, 2020), and the increase in arable land salinization is likely to have worrying global consequences (Singh, 2021). Saudi Arabia's semi-arid and arid weather represents a substantial challenge to agriculture, and the issue of increasing salinity in cultivated land is becoming a prominent threat.…”

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of bacteria from tomato and assessment of its plant growth-promoting traits in three economically important crops in Al-Ahsa region, Saudi Arabia

Aldayel¹,

Khalifa²

2021

JEB

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Aim: This study aimed to isolate, characterize and assess the plant growth-promoting traits of bacterial isolates inhabiting the rhizosphere of Solanum lycopersicum L. (tomato) against three plants—Eruca sativa, Lepidium sativum and Raphanus sativum—from Saudi Arabia's Al-Ahsa region. Methodology: bacterial isolate designated as SLK10 was obtained from the rhizosphere of tomato grown in the Al-Ahsa region, Saudi Arabia. SLK10 was further characterized morphologically, biochemically and genotypically using 16S rRNA gene sequencing. The roles in alleviating salt stress effects on three important economic crops were also assessed by implementing a cross-inoculation strategy. Results: SLK10 formed a circular, non-pigmented and raised colony with an entire margin. The cells were rod shaped and Gram negative. SLK10 displayed multiple plant growth-stimulating features, such as the solubilization of inorganic phosphate and the production of phytohormones and acetoin. Comparative sequence analysis of 16S rRNA gene revealed that SLK10 belonged to Pseudomonas monteilii, to which it exhibited 99.86% sequence homology. SLK10 significantly promoted the length of primary root, stem and number of leaves in Eruca sativa, Lepidium sativumand Raphanus sativus growing under 1000 ppm salt stress. The number of leaves in L. sativum and R. sativus growing under 2000 ppm salt stress was substantially enhanced by SLK10. Interpretation: SLK10 is a plant growth-promoting bacterium and can be used as a green fertilizer to increase soil fertility and plant productivity in the Eastern region of Saudi Arabia.

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“…Soil salinization has become a major constraint to the sustainable development of the ecological environment, more than 20% of arable land suffered from soil salinization (Shrivastava and Kumar, 2015;Rui and Ricardo, 2017) and a trend for ever increasing salinization has been observed (Cuevas et al, 2019;Singh, 2021). The area of salinized soil in the world is gradually expanding due to human activity and natural phenomena.…”

Section: Introductionmentioning

confidence: 99%

Overexpression of NtSOS2 From Halophyte Plant N. tangutorum Enhances Tolerance to Salt Stress in Arabidopsis

Zhu

Huo

et al. 2021

Front. Plant Sci.

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The Salt Overly Sensitive (SOS) signaling pathway is key in responding to salt stress in plants. SOS2, a central factor in this pathway, has been studied in non-halophytes such as Arabidopsis and rice, but has so far not been reported in the halophyte Nitraria tangutorum. In order to better understand how Nitraria tangutorum acquires its tolerance for a high salt environment, here, the NtSOS2 was cloned from Nitraria tangutorum, phylogenetic analyses showed that NtSOS2 is homologous to the SOS2 of Arabidopsis and rice. Gene expression profile analysis showed that NtSOS2 localizes to the cytoplasm and cell membrane and it can be induced by salt stress. Transgenesis experiments showed that exogenous expression of NtSOS2 reduces leaf mortality and improves the germination rate, biomass and root growth of Arabidopsis under salt stress. Also, exogenous expression of NtSOS2 affected the expression of ion transporter-related genes and can rescue the phenotype of sos2-1 under salt stress. All these results revealed that NtSOS2 plays an important role in plant salt stress tolerance. Our findings will be of great significance to further understand the mechanism of salt tolerance and to develop and utilize molecular knowledge gained from halophytes to improve the ecological environment.

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Soil salinization management for sustainable development: A review

Cited by 192 publications

References 203 publications

Maintenance of Cell Wall Integrity under High Salinity

Maintenance of Cell Wall Integrity under High Salinity

Isolation and characterization of bacteria from tomato and assessment of its plant growth-promoting traits in three economically important crops in Al-Ahsa region, Saudi Arabia

Overexpression of NtSOS2 From Halophyte Plant N. tangutorum Enhances Tolerance to Salt Stress in Arabidopsis

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