Signal mediators at induction of heat resistance of wheat plantlets by short-term heating

Karpets, Yu. V.; Kolupaev, Yu. Е.; Yastreb, Т. О.

doi:10.15407/ubj87.06.104

Ukr.Biochem.J.

2015

DOI: 10.15407/ubj87.06.104

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Signal mediators at induction of heat resistance of wheat plantlets by short-term heating

Yu. V. Karpets¹,

Yu. Е. Kolupaev²,

Т. О. Yastreb³

Abstract: the effects of functional interplay of calcium ions, reactive oxygen species (roS) and nitric oxide (No) in the cells of wheat plantlets roots (triticum aestivum l.)

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Cited by 6 publications

References 33 publications

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Mitigating biochar phytotoxicity via lanthanum (La) participation in pyrolysis

Yang

Shen

et al. 2017

Environ Sci Pollut Res

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Biochar (BC) produced from oak sawdust by slow pyrolysis was investigated to check the potential inhibition to early growth of tomato for phytotoxicity assessment. An inverted-U-shaped dose-response relationship between BC dosage and seed germination/seedling growth can be observed. Half maximal effective concentration (EC), based on the inhibition rate of root and stem length, was 65.7 and 74.0 g kg, respectively. At the highest BC dosage of 80.0 g kg, germination rate, root, and shoot length were notably inhibited by 34.9, 62.3, and 62.2% compared with their corresponding controls (without BC). Fluorescence intensity, indicating reactive oxygen species (ROS) generation in leaf and root, was 177.7 and 344.5% higher than the control. Similar results on HO content in leaf and root were observed as well. Besides, membrane leakage from the leaf and root cells was 2.1- and 1.3-fold higher than the corresponding controls. These results proved that BC exhibited significant phytotoxicity in the early growth stage of tomato. Unlike BC, the inhibitions on seed germination and seedling growth, the ROS accumulation, and the plasma membrane damage were not obvious with increasing La-BC dosage. These results indicated that BC phytotoxicity can be greatly mitigated by La involvement in pyrolysis, which was potentially associated with the reduced organic compounds and free radicals in La-BC. Besides, bio-available La in La-BC was partially involved in mitigating the phytotoxicity.

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Mitigating biochar phytotoxicity via lanthanum (La) participation in pyrolysis

Yang

Shen

et al. 2017

Environ Sci Pollut Res

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Gasotransmitters in Plants: Mechanisms of Participation in Adaptive Responses

Kolupaev¹,

Karpets²,

Shkliarevskyi³

et al. 2022

TOASJ

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Plant adaptive responses to environmental stresses occur with the participation of plant hormones and a network of signaling mediators. Among these, a growing attention has been paid over the recent years to gasotransmitters (GT). This term is used to define small gaseous molecules synthesized by living organisms that perform signaling functions. The main GT in plants are nitrogen monoxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S). The mechanisms of GT participation in the processes of plant adaptation to unfavorable environmental conditions have not yet been studied enough, which limits the use of GT in crop production. This review summarizes the latest data on GT synthesis in plants, the ability of GT to induce post-translational protein modifications in plants and to functionally interact with each other and with other signaling mediators. Particular attention is paid to the participation of GT in the regulation of antioxidant system, the state of cytoskeleton, and stomatal reactions of plants. These effects are important for stimulation by gasotransmitters the adaptation of plants to extreme temperatures, drought, and salinity. The possibilities of using GT donors in crop production were also considered.

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Cellular Mechanisms of the Formation of Plant Adaptive Responses to High Temperatures

et al. 2023

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Signal mediators at induction of heat resistance of wheat plantlets by short-term heating

Abstract: the effects of functional interplay of calcium ions, reactive oxygen species (roS) and nitric oxide (No) in the cells of wheat plantlets roots (triticum aestivum l.)

Cited by 6 publications

References 33 publications

Mitigating biochar phytotoxicity via lanthanum (La) participation in pyrolysis

Mitigating biochar phytotoxicity via lanthanum (La) participation in pyrolysis

Gasotransmitters in Plants: Mechanisms of Participation in Adaptive Responses

Cellular Mechanisms of the Formation of Plant Adaptive Responses to High Temperatures

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