Involvement of proline and non-protein thiols in response to low temperature and cadmium stresses in wheat

Repkina, Natalia; Таланова, В. В.; Ignatenko, Anna; Титов, А. Ф.

doi:10.32615/bp.2019.009

Cited by 19 publications

(5 citation statements)

References 31 publications

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“…Moreover, in our study the higher GSH concentrations in the winter conditions can be attributed also to higher Cd tissue concentrations observed in this season, since GSH synthesis is strongly Cd‐induced (Seth et al 2012). Also, Repkina et al (2019) observed higher GSH synthesis in leaf blades of Triticum aestivum grown at 4°C exposed to Cd than in plants grown at 4°C without Cd exposure. According to these authors, the higher GSH synthesis in the leaf blades of plants exposed to Cd decreased the lipid peroxidation in the tissue, as we also observed in our study (Fig.…”

Section: Discussionmentioning

confidence: 95%

Unraveling the mechanisms controlling Cd accumulation and Cd‐tolerance in Brachiaria decumbens and Panicum maximum under summer and winter weather conditions

et al. 2020

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We evaluated the mechanisms that control Cd accumulation and distribution, and the mechanisms that protect the photosynthetic apparatus of Brachiaria decumbens Stapf. cv. Basilisk and Panicum maximum Jacq. cv. Massai from Cd‐induced oxidative stress, as well as the effects of simulated summer or winter conditions on these mechanisms. Both grasses were grown in unpolluted and Cd‐polluted Oxisol (0.63 and 3.6 mg Cd kg−1 soil, respectively) at summer and winter conditions. Grasses grown in the Cd‐polluted Oxisol presented higher Cd concentration in their tissues in the winter conditions, but the shoot biomass production of both grasses was not affected by the experimental conditions. Cadmium was more accumulated in the root apoplast than the root symplast, contributing to increase the diameter and cell layers of the cambial region of both grasses. Roots of B. decumbens were more susceptible to disturbed nutrients uptake and nitrogen metabolism than roots of P. maximum. Both grasses translocated high amounts of Cd to their shoots resulting in oxidative stress. Oxidative stress in the leaves of both grasses was higher in summer than winter, but only in P. maximum superoxide dismutase (SOD) and ascorbate peroxidase (APX) activities were increased. However, CO2 assimilation was not affected due to the protection provided by reduced glutathione (GSH) and phytochelatins (PCs) that were more synthesized in shoots than roots. In summary, the root apoplast was not sufficiently effective to prevent Cd translocation from roots to shoot, but GSH and PCs provided good protection for the photosynthetic apparatus of both grasses.

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Section: Discussionmentioning

confidence: 95%

Unraveling the mechanisms controlling Cd accumulation and Cd‐tolerance in Brachiaria decumbens and Panicum maximum under summer and winter weather conditions

et al. 2020

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“…The physiological indexes (MDA content, PRO content, POD activity, CAT activity, and SOD activity) of bread wheat seedlings also verified their sensitivity to drought and salt stress. In addition, in TaRS15-3B -silenced bread wheat plants, stress resistance-related genes ( TaP5CS , TaLEA7 , TaDREB1 ) [ 77 , 78 , 79 ] and ROS scavenging system-related genes ( TaPOD , TaSOD1 , and TaCAT3 ) [ 80 , 81 , 82 ] were down-regulated to varying degrees. The results showed that the silencing of the TaRS15-3B gene would lead to the decline of the ability of bread wheat plants to cope with stress and ROS scavenging system, thus further showing the enhanced sensitivity to drought and salt.…”

Section: Discussionmentioning

confidence: 99%

Analysis of Raffinose Synthase Gene Family in Bread Wheat and Identification of Drought Resistance and Salt Tolerance Function of TaRS15-3B

Guo

Yang

Wang

et al. 2023

IJMS

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Raffinose synthase (RS) plays a crucial role in plant growth and development, as well as in responses to biotic stresses and abiotic stresses, yet few studies have been conducted on its role in bread wheat. Therefore, in this study we screened and identified a family of bread wheat raffinose synthase genes based on bread wheat genome information and analyzed their physicochemical properties, phylogenetic evolutionary relationships, conserved structural domains, promoter cis-acting elements, and expression patterns. The BSMV-induced silencing of TaRS15-3B resulted in the bread wheat seedlings being susceptible to drought and salt stress and reduced the expression levels of stress-related and ROS-scavenging genes in bread wheat plants. This further affected the ability of bread wheat to cope with drought and salt stress. In conclusion, this study revealed that the RS gene family in bread wheat plays an important role in plant response to abiotic stresses and that the TaRS15-3B gene can improve the tolerance of transgenic bread wheat to drought and salt stresses, provide directions for the study of other RS gene families in bread wheat, and supply candidate genes for use in molecular breeding of bread wheat for stress resistance.

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“…The role of wheat in phytoremediation is sparingly studied; however, few studies reported an increase in the expression of the PC synthase (TaPCS1) gene under Cd stress and Pb stress (Repkina et al, 2019;Rahman et al, 2022). The application of Si to the wheat plants under As stress induces the level of PCs and MTs, which further reduces the translocation of As to the shoot by sequestrating it into the roots of wheat (Hossain et al, 2018).…”

Section: Metal-binding Proteins In Wheatmentioning

confidence: 99%

Phytoremediation technologies and their mechanism for removal of heavy metal from contaminated soil: An approach for a sustainable environment

et al. 2023

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The contamination of soils with heavy metals and its associated hazardous effects are a thrust area of today’s research. Rapid industrialization, emissions from automobiles, agricultural inputs, improper disposal of waste, etc., are the major causes of soil contamination with heavy metals. These contaminants not only contaminate soil but also groundwater, reducing agricultural land and hence food quality. These contaminants enter the food chain and have a severe effect on human health. It is important to remove these contaminants from the soil. Various economic and ecological strategies are required to restore the soils contaminated with heavy metals. Phytoremediation is an emerging technology that is non-invasive, cost-effective, and aesthetically pleasing. Many metal-binding proteins (MBPs) of the plants are significantly involved in the phytoremediation of heavy metals; the MBPs include metallothioneins; phytochelatins; metalloenzymes; metal-activated enzymes; and many metal storage proteins, carrier proteins, and channel proteins. Plants are genetically modified to enhance their phytoremediation capacity. In Arabidopsis, the expression of the mercuric ion-binding protein in Bacillus megaterium improves the metal accumulation capacity. The phytoremediation efficiency of plants is also enhanced when assisted with microorganisms, biochar, and/or chemicals. Removing heavy metals from agricultural land without challenging food security is almost impossible. As a result, crop selections with the ability to sequester heavy metals and provide food security are in high demand. This paper summarizes the role of plant proteins and plant–microbe interaction in remediating soils contaminated with heavy metals. Biotechnological approaches or genetic engineering can also be used to tackle the problem of heavy metal contamination.

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Involvement of proline and non-protein thiols in response to low temperature and cadmium stresses in wheat

Abstract: This is an open access article distributed under the terms of the Creative Commons BY-NC-ND Licence

Cited by 19 publications

References 31 publications

Unraveling the mechanisms controlling Cd accumulation and Cd‐tolerance in Brachiaria decumbens and Panicum maximum under summer and winter weather conditions

Unraveling the mechanisms controlling Cd accumulation and Cd‐tolerance in Brachiaria decumbens and Panicum maximum under summer and winter weather conditions

Analysis of Raffinose Synthase Gene Family in Bread Wheat and Identification of Drought Resistance and Salt Tolerance Function of TaRS15-3B

Phytoremediation technologies and their mechanism for removal of heavy metal from contaminated soil: An approach for a sustainable environment

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