Plant Responses and Tolerance to Extreme Salinity: Learning from Halophyte Tolerance to Extreme Salinity

Abobatta, Waleed Fouad

doi:10.1007/978-3-030-40277-8_7

Cited by 9 publications

(5 citation statements)

References 104 publications

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“… 1 , 25 , 26 The current understanding of how life prevails under such extreme conditions via intermolecular and surface forces is far from satisfactory. 3 , 27 − 29 …”

Section: Introductionmentioning

confidence: 99%

“…This severity echoes in “The Rime of the Ancient Mariner”: “Water, water everywhere and not a drop to drink” . However, some life forms thrive even in harsh environments, including salty, arid, pressurized, hot, or cold environments, where the amounts of solutes (ions) and solvent (water) can vary dramatically, thereby catastrophically affecting the electrostatics and inducing osmotic imbalance. ,, The current understanding of how life prevails under such extreme conditions via intermolecular and surface forces is far from satisfactory. ,− …”

Section: Introductionmentioning

confidence: 99%

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Zwitterions Layer at but Do Not Screen Electrified Interfaces

et al. 2022

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The role of ionic electrostatics in colloidal processes is well-understood in natural and applied contexts; however, the electrostatic contribution of zwitterions, known to be present in copious amounts in extremophiles, has not been extensively explored. In response, we studied the effects of glycine as a surrogate zwitterion, ion, and osmolyte on the electrostatic forces between negatively charged mica–mica and silica–silica interfaces. Our results reveal that while zwitterions layer at electrified interfaces and contribute to solutions’ osmolality, they do not affect at all the surface potentials, the electrostatic surface forces (magnitude and range), and solutions’ ionic conductivity across 0.3–30 mM glycine concentration. We infer that the zwitterionic structure imposes an inseparability among positive and negative charges and that this inseparability prevents the buildup of a counter-charge at interfaces. These elemental experimental results pinpoint how zwitterions enable extremophiles to cope with the osmotic stress without affecting finely tuned electrostatic force balance.

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“… 1 , 25 , 26 The current understanding of how life prevails under such extreme conditions via intermolecular and surface forces is far from satisfactory. 3 , 27 − 29 …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Zwitterions Layer at but Do Not Screen Electrified Interfaces

et al. 2022

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“…Salinity stress is responsible for the deterioration of the condition of almost 20% of total cultivated and 33% of irrigated agricultural land globally (Qadir et al 2014, Shrivastava and Kumar 2015, Abobatta 2020). An imbalance in the cellular ion exchange process is responsible for the overall salinity stress in the cell.…”

Section: Introductionmentioning

confidence: 99%

Ion homeostasis for salinity tolerance in plants: a molecular approach

Amin

Rasool²,

Mir

et al. 2020

Physiologia Plantarum

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Soil salinity is one of the major environmental stresses faced by the plants. Sodium chloride is the most important salt responsible for inducing salt stress by disrupting the osmotic potential. Due to various innate mechanisms, plants adapt to the sodic niche around them. Genes and transcription factors regulating ion transport and exclusion such as salt overly sensitive (SOS), Na+/H+ exchangers (NHXs), high sodium affinity transporter (HKT) and plasma membrane protein (PMP) are activated during salinity stress and help in alleviating cells of ion toxicity. For salt tolerance in plants signal transduction and gene expression is regulated via transcription factors such as NAM (no apical meristem), ATAF (Arabidopsis transcription activation factor), CUC (cup‐shaped cotyledon), Apetala 2/ethylene responsive factor (AP2/ERF), W‐box binding factor (WRKY) and basic leucine zipper domain (bZIP). Cross‐talk between all these transcription factors and genes aid in developing the tolerance mechanisms adopted by plants against salt stress. These genes and transcription factors regulate the movement of ions out of the cells by opening various membrane ion channels. Mutants or knockouts of all these genes are known to be less salt‐tolerant compared to wild‐types. Using novel molecular techniques such as analysis of genome, transcriptome, ionome and metabolome of a plant, can help in expanding the understanding of salt tolerance mechanism in plants. In this review, we discuss the genes responsible for imparting salt tolerance under salinity stress through transport dynamics of ion balance and need to integrate high‐throughput molecular biology techniques to delineate the issue.

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“…10 Furthermore, closing stomatal is considered the chief response of plants that are subjected to salinity stress, which leads to a reduced average of transpiration, consequently, minimizing photosynthesis due to low CO 2 available. 11,12 Salinity causes various negative impacts on citrus trees like decay tree (Figure 1), abortion fruit set, reduction in fruit yield, and poor fruit quality, in addition, to limiting the expansion of this tree in new regions. Furthermore, salinity causes direct effects on the root system, which predisposes trees to different pathogens such as attacks by fungi, bacteria, and nematodes, which inhibit the whole tree growth.…”

Section: Citriculture and Salinitymentioning

confidence: 99%

Abiotic stress and citriculture

Abobatta¹

2022

JABB

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Salinity stress affects the growth and productivity of various fruit crops, furthermore, salinity is considered one of the main determining factors for cultivation. Under fluctuation in climate conditions, citrus growers must use various techniques to deal with increasing salinity levels to alleviate injuries, such as grafting with resistance rootstocks, canopy management, the Shading net technique, and using plant growth substances to sustain citriculture

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Plant Responses and Tolerance to Extreme Salinity: Learning from Halophyte Tolerance to Extreme Salinity

Cited by 9 publications

References 104 publications

Zwitterions Layer at but Do Not Screen Electrified Interfaces

Zwitterions Layer at but Do Not Screen Electrified Interfaces

Ion homeostasis for salinity tolerance in plants: a molecular approach

Abiotic stress and citriculture

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