The effect of global warming on soil salinity in arid regions

Pankova, Ye. I.; Konyushkova, M. V.

doi:10.19047/0136-1694-2013-71-3-15

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…The concerns of primary salinization due to the factors such as seawater intrusion and volcanic bedrock weathering (Alfarrah and Walraevens, 2018;Mirzavand et al, 2020) have been grossly aggravated by secondary salinization due to anthropogenic manipulation of the hydrologic cycle (Herbert et al, 2015). Rising mean temperatures in many parts of the world enhance secondary salinization by increasing evapotranspiration, leading to salt buildup in the soil (Pankova and Konyushkova, 2014;Okur and Örçen, 2020). According to the 2013 estimate, current annual economic losses due to salt-induced land degradation could be as much as $27 billion (Shahid et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Transcriptome and Metabolome Analyses Reveal Potential Salt Tolerance Mechanisms Contributing to Maintenance of Water Balance by the Halophytic Grass Puccinellia nuttalliana

2021

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Elevated soil salinity exacerbated by human activities and global climate change poses serious threats to plant survival. Although halophytes provide many important clues concerning salt tolerance in plants, some unanswered questions remain to be addressed, including the processes of water and solute transport regulation. We performed high-throughput RNA-sequencing in roots and metabolome characterizations in roots and leaves of Puccinellia nuttalliana halophytic grass subjected to 0 (control) and 150 mM NaCl. In RNAseq, a total of 31 Gb clean bases generated were de novo assembled into 941,894 transcripts. The PIP2;2 and HKT1;5 transcript levels increased in response to the NaCl treatment implying their roles in water and ion homeostasis. Several transcription factors, including WRKY39, DEK3, HY5, and ABF2, were also overexpressed in response to NaCl. The metabolomic analysis revealed that proline and dopamine significantly increased due to the upregulation of the pathway genes under salt stress, likely contributing to salt tolerance mechanisms. Several phosphatidylcholines significantly increased in roots suggesting that the alterations of membrane lipid composition may be an important strategy in P. nuttalliana for maintaining cellular homeostasis and membrane integrity under salt stress. In leaves, the TCA cycle was enriched suggesting enhanced energy metabolism to cope with salt stress. Other features contributing to the ability of P. nuttalliana to survive under high salinity conditions include salt secretion by the salt glands and enhanced cell wall lignification of the root cells. While most of the reported transcriptomic, metabolomics, and structural alterations may have consequences to water balance maintenance by plants under salinity stress, the key processes that need to be further addressed include the role of the changes in the aquaporin gene expression profiles in the earlier reported enhancement of the aquaporin-mediated root water transport.

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Section: Introductionmentioning

confidence: 99%

Transcriptome and Metabolome Analyses Reveal Potential Salt Tolerance Mechanisms Contributing to Maintenance of Water Balance by the Halophytic Grass Puccinellia nuttalliana

2021

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“…It is known that salinized soils largely lose their natural properties [4][5][6][7]. Therefore, the determination of the factors causing salinization, its prevention, as well as the preservation, restoration of the fertility of saline soils and their rational use in agriculture are urgent tasks at a time when the area of saline lands is increasing as a result of natural processes and anthropogenic impact [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…The saline soils of different regions have been the subject of attention of many eminent scientists. In this regard, large-scale and research on the study of properties, ameliorative state and biological activity, improvement and increase in the fertility of saline soils common in different regions of the world in different years were carried out by N V Kimberg [8], V G Popov [12], V A Kovdym [9], A M Rasulov [13], E I Pankova [10,11], L T Tursunov [14] , I T Turapov [15] , S A Abdullaev [16]. Obviously, scientific research is being carried out in the world to prevent salinization processes that occur in the context of global climate change and mitigate its consequences, to identify the influence of external factors on soil properties, taking into account natural and climatic conditions [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Biodiagnostic survey of salt soils of the desert zone of Uzbekistan

Saidova

Gafurova

Kodirova

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The unfavorable climatic conditions of the desert territory are the reason for the reduced biological activity of the studied soils; the highest BA was observed mainly in spring. This is due to the presence of favorable hydrothermal conditions and nutrients for the occurrence of biological processes at this time, in summer there is a slight decrease and by autumn a slight increase in the biological activity of the soil. Also, it was found that the change in the general biological activity of soils depends on the content of humus and nutrients in them, the mechanical composition, the duration of irrigation and the degree of salinity. Thus, the results show that the integral indicator of soil biological activity can be widely used in assessing the response of the region’s soils to external influences, as well as the effectiveness of measures taken to preserve and increase soil fertility.

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Long-term changes in the area of saline soils recognized by LANDSAT images in Shauldersk irrigated massive

Savin

Otarov

Жоголев

et al. 2014

DSB

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Possibilities to use the archive images obtained by Landsat TM5 in different years have been comprehensively analyzed with the aim at recognizing the soils with different salinity degree. Special approaches were proposed to study the dynamics of saline soils by using the satellite imagery. Based upon a computer analysis of the information transmitted by Landsat in 1987-1988 and 2009-2010 as well as the data of field soil survey, it seemed reasonable to identify changes in the area of such soils in Shauldersk irrigated massive (the South-Kazakhstan region, Republic of Kazakhstan). It was concluded that the share of saline soils revealed an increase at the studied territory within the period from 1987 to 2010.

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The effect of global warming on soil salinity in arid regions

Cited by 5 publications

References 3 publications

Transcriptome and Metabolome Analyses Reveal Potential Salt Tolerance Mechanisms Contributing to Maintenance of Water Balance by the Halophytic Grass Puccinellia nuttalliana

Transcriptome and Metabolome Analyses Reveal Potential Salt Tolerance Mechanisms Contributing to Maintenance of Water Balance by the Halophytic Grass Puccinellia nuttalliana

Biodiagnostic survey of salt soils of the desert zone of Uzbekistan

Long-term changes in the area of saline soils recognized by LANDSAT images in Shauldersk irrigated massive

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