Enhancement of abiotic stress tolerance in poplar by overexpression of key Arabidopsis stress response genes, AtSRK2C and AtGolS2

2017 ◽  
Vol 37 (5) ◽  
Author(s):  
Xiang Yu ◽  
Misato Ohtani ◽  
Miyako Kusano ◽  
Nobuyuki Nishikubo ◽  
Misa Uenoyama ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Stress Response ◽  
Stress Tolerance ◽  
Abiotic Stress Tolerance ◽  
Stress Response Genes

Calcium-Dependent Protein Kinases (CDPK) in Abiotic Stress Tolerance

2018 ◽  
Vol 34 (2) ◽  
pp. 259-265 ◽  
Author(s):  
Hemant B Kardile ◽  
◽  
Vikrant ◽  
Nirmal Kant Sharma ◽  
Ankita Sharma ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Stress Tolerance ◽  
Protein Kinases ◽  
Abiotic Stress Tolerance ◽  
Calcium Dependent ◽  
Dependent Protein ◽  
Calcium Dependent Protein Kinases

Roles of Nitric Oxide in Conferring Multiple Abiotic Stress Tolerance in Plants and Crosstalk with Other Plant Growth Regulators

2021 ◽  
Author(s):  
Rajesh Kumar Singhal ◽  
Hanuman Singh Jatav ◽  
Tariq Aftab ◽  
Saurabh Pandey ◽  
Udit Nandan Mishra ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Abiotic Stress ◽  
Plant Growth ◽  
Stress Tolerance ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Abiotic Stress Tolerance

scholarly journals Genome-Wide Identification and Expression Profiling of the PDI Gene Family Reveals Their Probable Involvement in Abiotic Stress Tolerance in Tomato (Solanum lycopersicum L.)

Genes ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 23
Author(s):  
Antt Htet Wai ◽  
Muhammad Waseem ◽  
A B M Mahbub Morshed Khan ◽  
Ujjal Kumar Nath ◽  
Do Jin Lee ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Gene Family ◽  
Stress Tolerance ◽  
Solanum Lycopersicum ◽  
Expression Profiling ◽  
Abiotic Stress Tolerance ◽  
Dependent Manner ◽  
Solanum Lycopersicum L ◽  
Genome Wide ◽  
Protein Disulfide

Protein disulfide isomerases (PDI) and PDI-like proteins catalyze the formation and isomerization of protein disulfide bonds in the endoplasmic reticulum and prevent the buildup of misfolded proteins under abiotic stress conditions. In the present study, we conducted the first comprehensive genome-wide exploration of the PDI gene family in tomato (Solanum lycopersicum L.). We identified 19 tomato PDI genes that were unevenly distributed on 8 of the 12 tomato chromosomes, with segmental duplications detected for 3 paralogous gene pairs. Expression profiling of the PDI genes revealed that most of them were differentially expressed across different organs and developmental stages of the fruit. Furthermore, most of the PDI genes were highly induced by heat, salt, and abscisic acid (ABA) treatments, while relatively few of the genes were induced by cold and nutrient and water deficit (NWD) stresses. The predominant expression of SlPDI1-1, SlPDI1-3, SlPDI1-4, SlPDI2-1, SlPDI4-1, and SlPDI5-1 in response to abiotic stress and ABA treatment suggested they play regulatory roles in abiotic stress tolerance in tomato in an ABA-dependent manner. Our results provide new insight into the structure and function of PDI genes and will be helpful for the selection of candidate genes involved in fruit development and abiotic stress tolerance in tomato.

scholarly journals Citric Acid-Mediated Abiotic Stress Tolerance in Plants

2021 ◽  
Vol 22 (13) ◽  
pp. 7235
Author(s):  
Md. Tahjib-Ul-Arif ◽  
Mst. Ishrat Zahan ◽  
Md. Masudul Karim ◽  
Shahin Imran ◽  
Charles T. Hunter ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Citric Acid ◽  
Stress Tolerance ◽  
Metabolic Networks ◽  
Abiotic Stress Tolerance ◽  
Heavy Metal Stress ◽  
Stress Conditions ◽  
Growth And Yield ◽  
Antioxidant Defense Systems ◽  
Physiological Outcomes

Several recent studies have shown that citric acid/citrate (CA) can confer abiotic stress tolerance to plants. Exogenous CA application leads to improved growth and yield in crop plants under various abiotic stress conditions. Improved physiological outcomes are associated with higher photosynthetic rates, reduced reactive oxygen species, and better osmoregulation. Application of CA also induces antioxidant defense systems, promotes increased chlorophyll content, and affects secondary metabolism to limit plant growth restrictions under stress. In particular, CA has a major impact on relieving heavy metal stress by promoting precipitation, chelation, and sequestration of metal ions. This review summarizes the mechanisms that mediate CA-regulated changes in plants, primarily CA’s involvement in the control of physiological and molecular processes in plants under abiotic stress conditions. We also review genetic engineering strategies for CA-mediated abiotic stress tolerance. Finally, we propose a model to explain how CA’s position in complex metabolic networks involving the biosynthesis of phytohormones, amino acids, signaling molecules, and other secondary metabolites could explain some of its abiotic stress-ameliorating properties. This review summarizes our current understanding of CA-mediated abiotic stress tolerance and highlights areas where additional research is needed.

scholarly journals Enhanced Abiotic Stress Tolerance of Vicia faba L. Plants Heterologously Expressing the PR10a Gene from Potato

Plants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 173
Author(s):  
Abeer F. Desouky ◽  
Ahmed H. Ahmed ◽  
Hartmut Stützel ◽  
Hans-Jörg Jacobsen ◽  
Yi-Chen Pao ◽  
...  
Keyword(s):  
Salt Stress ◽  
Abiotic Stress ◽  
Stress Tolerance ◽  
Vicia Faba ◽  
Faba Bean ◽  
Abiotic Stress Tolerance ◽  
Wild Type ◽  
Stress Injury ◽  
Bean Plants ◽  
Vicia Faba L

Pathogenesis-related (PR) proteins are known to play relevant roles in plant defense against biotic and abiotic stresses. In the present study, we characterize the response of transgenic faba bean (Vicia faba L.) plants encoding a PR10a gene from potato (Solanum tuberosum L.) to salinity and drought. The transgene was under the mannopine synthetase (pMAS) promoter. PR10a-overexpressing faba bean plants showed better growth than the wild-type plants after 14 days of drought stress and 30 days of salt stress under hydroponic growth conditions. After removing the stress, the PR10a-plants returned to a normal state, while the wild-type plants could not be restored. Most importantly, there was no phenotypic difference between transgenic and non-transgenic faba bean plants under well-watered conditions. Evaluation of physiological parameters during salt stress showed lower Na+-content in the leaves of the transgenic plants, which would reduce the toxic effect. In addition, PR10a-plants were able to maintain vegetative growth and experienced fewer photosystem changes under both stresses and a lower level of osmotic stress injury under salt stress compared to wild-type plants. Taken together, our findings suggest that the PR10a gene from potato plays an important role in abiotic stress tolerance, probably by activation of stress-related physiological processes.

scholarly journals Humic acids trigger the weak acids stress response in maize seedlings

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Daiane Carvalho Baía ◽  
Fábio L. Olivares ◽  
Daniel B. Zandonadi ◽  
Cleiton de Paula Soares ◽  
Riccardo Spaccini ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Stress Response ◽  
Intracellular Ph ◽  
Humic Acids ◽  
Abiotic Stress Tolerance ◽  
Molecular Response ◽  
Maize Seedlings ◽  
Weak Acids ◽  
Acetoxymethyl Ester ◽  
Chemical Priming

Abstract Background Plants primed by humic acids showed physiological and molecular response against different abiotic stresses without the presence of stressor agents (salinity, drought, heavy metal toxicity). It is plausible that humic acids themselves can act as chemical priming substances in plants. We hypothesized that humic acids can trigger the weak acids stress response in cell plants acidifying the cytosol and thus eliciting the transduction signalling response cascade. Methods The dose–response curves of maize seedlings roots with different concentrations of humic, acetic and salicylic acids determined the most active and inhibitory concentration. These data were further used to evaluate changes on intracellular pH using BCECF-AM probe (2,7-bis(2-carboxyethyl)-5(and 6)-carboxyfluorescein, acetoxymethyl ester) and differential transcription level of genes related to weak stress response in plants by qPCR real time. Results Humic acids like short chain organic acids decrease the intracellular pH showed by the increased fluorescence of BCECF probe. The drop in cytosolic pH promoted by humic acids was not transient. We observed a high level of protein kinases related to cell energy-sensing and transcription factors associated to transduction of stress signalling. Conclusion The humic acids can be considered as a chemical priming agent, since in the appropriate concentration they can induce the typical plant abiotic stress response of weak acids inducing plant acclimation and enhancing the abiotic stress tolerance.

Sign in / Sign up

Export Citation Format

Share Document