Effect of stress conditions on the activity and isozyme composition of peroxidase of vacuoles and tissue extract of red beet roots

Pradedova, E. V.; Nimaeva, O. D.; Salyaev, R. K.

doi:10.1134/s106235901403008x

Cited by 5 publications

(5 citation statements)

References 21 publications

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“…The highly efficient osmotic regulation in B. maritime may account for the delayed induction of APX expression. Peroxidase (POX) is another well-known antioxidant enzyme that protects plant cells from oxidative damage, and its enzymatic activity was induced in the roots of sugar beet under stress conditions (Pradedova et al, 2014). Recently, it was reported that the level of POX gene transcription under salt stress was related to the elevated levels of acetylation in H3K9 and H3K27 sites in sugar beet (Yolcu et al, 2016).…”

Section: Primary Mechanisms Of Salt Tolerance In Sugar Beetmentioning

confidence: 99%

Advances in Understanding the Physiological and Molecular Responses of Sugar Beet to Salt Stress

Chen

Wang

2019

Front. Plant Sci.

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Soil salinity is a major environmental stress on crop growth and productivity. A better understanding of the molecular and physiological mechanisms underlying salt tolerance will facilitate efforts to improve crop performance under salinity. Sugar beet is considered to be a salt-tolerant crop, and it is therefore a good model for studying salt acclimation in crops. Recently, many determinants of salt tolerance and regulatory mechanisms have been studied by using physiological and ‘omics approaches. This review provides an overview of recent research advances regarding sugar beet response and tolerance to salt stress. We summarize the physiological and molecular mechanisms involved, including maintenance of ion homeostasis, accumulation of osmotic-adjustment substances, and antioxidant regulation. We focus on progress in deciphering the mechanisms using ‘omic technologies and describe the key candidate genes involved in sugar beet salt tolerance. Understanding the response and tolerance of sugar beet to salt stress will enable translational application to other crops and thus will have significant impacts on agricultural sustainability and global food security.

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Section: Primary Mechanisms Of Salt Tolerance In Sugar Beetmentioning

confidence: 99%

Advances in Understanding the Physiological and Molecular Responses of Sugar Beet to Salt Stress

Chen

Wang

2019

Front. Plant Sci.

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“…Peroxidase is a catalyst for the oxidation of various inorganic and organic compounds (Rogozhin et al, 1996). Peroxidase can display oxidase properties due to its broad substrate specificity (Pradedova et al, 2014). Having antioxidant activity, peroxidase inhibits free radical oxidation of lipids (Noori et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

The Impact of UV Irradiation of Winter Wheat Seeds on Enzymatic Activity in the Germination Period

Šimonová

Ayrapetyan

Ерошенко

et al. 2019

IJARe

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There have been conducted comprehensive studies of the effect of UV irradiation on enzymatic activity in the germination period of winter wheat seeds under different irradiation regimes. They have identified the maximum increase in amylase activity on the fourth day from the beginning of seed germination in variants with three and five minute UV irradiation and this indicator’s value exceeded that of the control variant on 58.6 % and 64.1%, respectively. Catalase activity was of its maximum value by the fourth day from the beginning of seed germination in variants with three and five minute UV irradiation and exceeded the value of the control variant on 14.7% and 17.7%, respectively. Peroxidase activity was of its maximum on the eighth day from the beginning of seed germination in all experimental variants. In a variant with three minute UV irradiation, peroxidase activity exceeded the control values of this indicator on 50% and in a variant with five minute UV irradiation on 55%. The use of a mercury-quartz lamp BNPO 2-30-001U3.5 to stimulate physio-logical and biochemical processes in germinating seeds made it possible to identify different enzymatic activities depending on the time exposure to UV irradiation.

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“…For instance, in flower buds of potted lemon tree, POD activity did not significantly change during the winter rest period, but increased 4–fivefold upon reaching dormancy release [ 30 ]. In beetroot, POD activity was the highest during the growth stage and the lowest during the dormant period [ 31 , 32 ]. In addition, during germination, the POD activity of Berberis seeds increased [ 33 ], whereas that of mung bean ( Vigna radiata ) increased initially but then decreased [ 34 ].…”

Section: Discussionmentioning

confidence: 99%

Functional analysis of a wheat class III peroxidase gene, TaPer12-3A, in seed dormancy and germination

Gao,

Jiang,

Yang

et al. 2024

BMC Plant Biol

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Background Class III peroxidases (PODs) perform crucial functions in various developmental processes and responses to biotic and abiotic stresses. However, their roles in wheat seed dormancy (SD) and germination remain elusive. Results Here, we identified a wheat class III POD gene, named TaPer12-3A, based on transcriptome data and expression analysis. TaPer12-3A showed decreasing and increasing expression trends with SD acquisition and release, respectively. It was highly expressed in wheat seeds and localized in the endoplasmic reticulum and cytoplasm. Germination tests were performed using the transgenic Arabidopsis and rice lines as well as wheat mutant mutagenized with ethyl methane sulfonate (EMS) in Jing 411 (J411) background. These results indicated that TaPer12-3A negatively regulated SD and positively mediated germination. Further studies showed that TaPer12-3A maintained H2O2 homeostasis by scavenging excess H2O2 and participated in the biosynthesis and catabolism pathways of gibberellic acid and abscisic acid to regulate SD and germination. Conclusion These findings not only provide new insights for future functional analysis of TaPer12-3A in regulating wheat SD and germination but also provide a target gene for breeding wheat varieties with high pre-harvest sprouting resistance by gene editing technology.

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Effect of stress conditions on the activity and isozyme composition of peroxidase of vacuoles and tissue extract of red beet roots

Cited by 5 publications

References 21 publications

Advances in Understanding the Physiological and Molecular Responses of Sugar Beet to Salt Stress

Advances in Understanding the Physiological and Molecular Responses of Sugar Beet to Salt Stress

The Impact of UV Irradiation of Winter Wheat Seeds on Enzymatic Activity in the Germination Period

Functional analysis of a wheat class III peroxidase gene, TaPer12-3A, in seed dormancy and germination

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