Features of Prooxidant and Antioxidant Systems of Greater Plantain Plantago major Growing for a Long Time under Conditions of Radioactive Contamination

Shimalina, Nadezhda S.; Orekhova, N. A.; Pozolotina, V. N.

doi:10.1134/s1067413618050120

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…Analysis of the results obtained and their comparison with the literature data show that the functioning of the antioxidant system components and their relationship with the rates of lipid peroxidation processes are regulated differently depending on the type of stressor affecting them (Polesskaya, 2007;Shimalina et al, 2017Shimalina et al, , 2018Słomka et al, 2008;Sharma et al, 2012;Morozova et al, 2016). The antioxidant system response is determined by the degree and duration of exposure to the stress (Polesskaya, 2007).…”

Section: Discussionmentioning

confidence: 93%

Comparative Evaluation of Prooxidant/Antioxidant Balance in Seed Progeny of Plantago major L. from Radioactively and Chemically Contaminated Areas

Shimalina¹,

Orekhova²,

Pozolotina³

2001

J. Sib. Fed. Biol.

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There are many studies addressing plant responses to radioactive and chemical contamination of soils, but few works have been devoted to comparison of biological effects in the areas affected by these human-induced factors. Ionizing radiation and heavy metals have different mechanisms of interaction with biota. Both factors, however, are capable of increasing the generation of reactive oxygen species, which cause enzyme malfunction and cell structure damage. The efficiency of antioxidant systems plays an important role in plant resistance to these impacts. The present study offers a comparative evaluation of prooxidant/antioxidant balance in seed progeny of Plantago major L. growing in the East Ural Radioactive Trace (EURT), in the zone affected by operation of the Karabash Copper Smelter (KCS), and in the reference sites. Lipid peroxidation was assessed by determining malondialdehyde. Evaluation of the antioxidant system was based on the activities of superoxide dismutase, catalase, and total peroxidase, and on the content of low-molecular-weight antioxidants. The study showed that the prooxidant and antioxidant statuses of seed progeny of P. major from the contaminated sites were different from the reference samples and from each other. The pooled EURT sample exhibited a prooxidant shift relative to the reference samples, i. e. not only malondialdehyde but also activities of superoxide dismutase and catalase and the content of low-molecular-weight antioxidants were higher than in the reference samples. Malondialdehyde content in seedlings from the KCS zone did not differ from the reference values; superoxide dismutase and catalase activities were decreased whereas peroxidase activity was higher compared to the activities of these enzymes in the reference samples. Thus, the differences in the plant adaptive responses to ionizing radiation and heavy metals are caused by the dissimilarities in the induction of reactive oxygen species

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Section: Discussionmentioning

confidence: 93%

Comparative Evaluation of Prooxidant/Antioxidant Balance in Seed Progeny of Plantago major L. from Radioactively and Chemically Contaminated Areas

Shimalina¹,

Orekhova²,

Pozolotina³

2001

J. Sib. Fed. Biol.

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“…These areas have become unique testing sites for studying radiobiological effects in the organisms and communities that have been exposed to radiation stress for generations [2,3]. The increased frequency of morphological anomalies and variations in viability, radiosensitivity, and biochemical parameters have been shown in natural plant populations under conditions of radioactive contamination [4][5][6]. An elevated level of mutagenesis that has persisted for many years has been observed in populations of many plant species in both the Kyshtym and Chernobyl accident areas [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Of particular interest are radiosensitive organisms, such as greater plantain (Plantago major L.), which is a widespread medicinal plant [23]. Our previous studies have revealed upregulation of an oxidative-stress marker called malondialdehyde and of the activity of antioxidant enzymes in seedlings of this species from the EURT zone [5]. In a random group from the most contaminated local population, the effects have persisted in subsequent generations of this species after the removal of the radiation load [12].…”

Section: Introductionmentioning

confidence: 99%

Multiannual Assessment of Quality of Plantago major L. Seed Progeny from Kyshtym Radiation Accident Area: Weather-Dependent Effects

Shimalina

Антонова

Pozolotina

2023

Plants

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The effects of low-dose radiation that are observed in plant populations in radioactively contaminated areas are variable. One of the reasons is the influence of fluctuating weather conditions and the interaction of radiation with weather factors. This article summarizes results of 12-year research on the viability and radioresistance of greater plantain (Plantago major L.) seed progeny growing in the East Ural Radioactive Trace (EURT) zone and in control (nonradioactive) areas, with consideration of weather conditions’ variability. The EURT was formed by the Kyshtym accident, which occurred in 1957 at the Mayak Production Association. Absorbed dose rates of P. major parental plants in the pollution gradient were 14.5–165.9 μGy h−1, which correspond to a low-dose range. Seed progeny quality was evaluated as seed weight, the survival rate, and root length of 21-day seedlings. Interannual variability in the studied parameters was high, and their ranges overlapped between EURT groups of seeds and control groups in most cases. The number of significant correlations between the parameters of seed quality and weather conditions was higher in EURT groups than in control populations. In the control groups of seeds, 88.9% of correlations were negative, whereas in the EURT groups, 78.5% were positive.

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Biochemical and genetic polymorphism of Bromopsis inermis populations under chronic radiation exposure

Антонова

Shoeva

Khlestkina

2019

Planta

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Features of Prooxidant and Antioxidant Systems of Greater Plantain Plantago major Growing for a Long Time under Conditions of Radioactive Contamination

Cited by 6 publications

References 19 publications

Comparative Evaluation of Prooxidant/Antioxidant Balance in Seed Progeny of Plantago major L. from Radioactively and Chemically Contaminated Areas

Comparative Evaluation of Prooxidant/Antioxidant Balance in Seed Progeny of Plantago major L. from Radioactively and Chemically Contaminated Areas

Multiannual Assessment of Quality of Plantago major L. Seed Progeny from Kyshtym Radiation Accident Area: Weather-Dependent Effects

Biochemical and genetic polymorphism of Bromopsis inermis populations under chronic radiation exposure

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