TdSHN1, a WIN1/SHN1-type transcription factor, imparts multiple abiotic stress tolerance in transgenic tobacco

Djemal, Rania; Khoudi, Habib

doi:10.1016/j.envexpbot.2016.07.005

Cited by 32 publications

(15 citation statements)

References 66 publications

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“…Similarly, overexpression of an ethylene-responsive transcription factor (TdSHN1) from durum wheat resulted in the development of a cuticle and lower stomatal density than WT. TdSHN1 overexpression lines, therefore, showed enhanced tolerance to salinity stress because of a reduced water loss from the leaf lamina [81]. On exposure to salinity stress, MdERF4 from apple is induced to decrease the salinity stress tolerance by binding and inhibiting the expression of MdERF3, suggesting that the MdERF4-MdERF3 interaction may be a feedback regulation mechanism in salinity stress to maintain ethylene homeostasis in plants [82].…”

Section: Effects Of Salinity Stress On Erfs and Other Ethylene-responmentioning

confidence: 98%

Ethylene: A Master Regulator of Salinity Stress Tolerance in Plants

et al. 2020

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Salinity stress is one of the major threats to agricultural productivity across the globe. Research in the past three decades, therefore, has focused on analyzing the effects of salinity stress on the plants. Evidence gathered over the years supports the role of ethylene as a key regulator of salinity stress tolerance in plants. This gaseous plant hormone regulates many vital cellular processes starting from seed germination to photosynthesis for maintaining the plants’ growth and yield under salinity stress. Ethylene modulates salinity stress responses largely via maintaining the homeostasis of Na+/K+, nutrients, and reactive oxygen species (ROS) by inducing antioxidant defense in addition to elevating the assimilation of nitrates and sulfates. Moreover, a cross-talk of ethylene signaling with other phytohormones has also been observed, which collectively regulate the salinity stress responses in plants. The present review provides a comprehensive update on the prospects of ethylene signaling and its cross-talk with other phytohormones to regulate salinity stress tolerance in plants.

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Section: Effects Of Salinity Stress On Erfs and Other Ethylene-responmentioning

confidence: 98%

Ethylene: A Master Regulator of Salinity Stress Tolerance in Plants

et al. 2020

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“…Further, the overexpression of OsWR1 upregulates an oxidative stress response and expression of membrane stability‐related genes (Wang et al, ). The ectopic expression of TdSHN1 , the SHN1 orthologue from durum wheat, in tobacco plants led to an increased tolerance to several abiotic stresses including salt, cold and water stresses, along with the upregulation of genes involved in oxidative and osmotic stress responses and cuticle metabolism, and a significant reduction in stomatal density (Djemal & Khoudi, ).…”

Section: Introductionmentioning

confidence: 99%

Overexpression of the TaSHN1 transcription factor in bread wheat leads to leaf surface modifications, improved drought tolerance, and no yield penalty under controlled growth conditions

Shi

Kovalchuk

et al. 2018

Plant Cell & Environment

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Transcription factors regulate multiple networks, mediating the responses of organisms to stresses, including drought. Here, we investigated the role of the wheat transcription factor TaSHN1 in crop growth and drought tolerance. TaSHN1, isolated from bread wheat, was characterized for molecular interactions and functionality. The overexpression of TaSHN1 in wheat was followed by the evaluation of T and T transgenic lines for drought tolerance, growth, and yield components. Leaf surface changes were analysed by light microscopy, SEM, TEM, and GC-MS/GC-FID. TaSHN1 behaves as a transcriptional activator in a yeast transactivation assay and binds stress-related DNA cis-elements, determinants of which were revealed using 3D molecular modelling. The overexpression of TaSHN1 in transgenic wheat did not result in a yield penalty under the controlled plant growth conditions of a glasshouse. Transgenic lines had significantly lower stomatal density and leaf water loss and exhibited improved recovery after severe drought, compared with control plants. The comparative analysis of cuticular waxes revealed an increased accumulation of alkanes in leaves of transgenic lines. Our data demonstrate that TaSHN1 may operate as a positive modulator of drought stress tolerance. Positive attributes could be mediated through an enhanced accumulation of alkanes and reduced stomatal density.

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“…At the same case and in addition to cellulose and hemicellulose, the membrane contains lipids, phospholipids, and galactolipids [11, 27]. In particular, those last compounds were judged playing very important roles on the membrane integrity and also functionality against various biotic and abiotic stresses [11, 31].…”

Section: Resultsmentioning

confidence: 99%

“…Five leaf discs (0.5 cm diameter) were cut from leaves derived from the studied Arabidopsis thaliana lines and placed in glass tubes containing 5 ml of deionised water. Thereafter, tubes were kept at room temperature with gentle agitation for 24 h. Electrolyte leakage was determined by measuring the electrical conductivity of the glass tube solution using a conductivity meter and data were expressed as mS.cm −1 like described by [31].…”

Section: Methodsmentioning

confidence: 99%

Causal Enzymology and Physiological Aspects May Be Accountable to Membrane Integrity in Response to Salt Stress in Arabidopsis thaliana Lines

Bouazzi

Feki

Zouari

et al. 2019

BioMed Research International

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Apart from their significance in the protection against stress conditions, the plant cell membranes are essential for proper development of the diverse surface structures formed on aerial plant organs. In addition, we signal that membrane remodeling and integrity are function of some of causal physiological and enzymological aspects such as the MDA, the ion leakage and also the monitoring of some phytozymes involved in lipid and cellulose metabolisms. Those last ones are related to the membrane structure (lipases and cellulases), that were assessed in durum wheat dehydrin transgenic context (YS, K1-K2, DH2, and DH4), proline metabolic mutant (P5CS1-4) per comparison with the wild-type plant (Wt). We report also the docking data reinforcing the fact that the membrane integrity seems to be function of causal enzymological behaviors, through the molecular dynamic investigation resulting from the dehydrin-phytozyme interactions and also from the inhibition effect of the durum wheat LTP4 on the lipase activity.

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TdSHN1, a WIN1/SHN1-type transcription factor, imparts multiple abiotic stress tolerance in transgenic tobacco

Cited by 32 publications

References 66 publications

Ethylene: A Master Regulator of Salinity Stress Tolerance in Plants

Ethylene: A Master Regulator of Salinity Stress Tolerance in Plants

Overexpression of the TaSHN1 transcription factor in bread wheat leads to leaf surface modifications, improved drought tolerance, and no yield penalty under controlled growth conditions

Causal Enzymology and Physiological Aspects May Be Accountable to Membrane Integrity in Response to Salt Stress in Arabidopsis thaliana Lines

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