Intraspecific variation in Melandrium album along a radioactive contamination gradient at the Eastern Ural radioactive trace

Антонова, Е. В.; Karimullina, E. M.; Pozolotina, V. N.

doi:10.1134/s1067413613010025

Cited by 19 publications

(8 citation statements)

References 23 publications

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“…Karimullina et al (2013) and Antonova et al (2014) described the methods used to make detailed estimate of the radiation load on the vegetative and generative organs of the smooth brome. The radiation absorbed dose rate by the parent plants and its seeds, and also the absorbed dose over a growing period (from May to September) were calculated (Table 1).…”

Section: Assessment Of the Radiation Dose On The B Inermis Maternal mentioning

confidence: 99%

“…June 2011 (Brown et al, 2008), which were worked out using empirical concentration ratios of radionuclides from the soil into plants ( Karimullina et al, 2013). The ERICA Tool Tier 3 allowed probabilistic estimating the radiation doses that embryos were exposed to during the maturation and storage period during the year-long experiment.…”

Section: Calculating the Total Dose Rates For Maternal Plants And Seedsmentioning

confidence: 99%

“…Many years of experiments have revealed the effect of the combination of radiation exposure and weather conditions on the viability of seeds from different plants: common dandelion and plantain (Pozolotina et al, 2008), heath stitchwort (Pozolotina et al, 2010a), white campion (Antonova et al, 2013) and smooth brome . During the different seasons in the EURT synergistic, antagonistic or additive effects were seen.…”

Section: Introductionmentioning

confidence: 99%

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Time-dependent changes of the physiological status ofBromus inermisLeyss. seeds from chronic low-level radiation exposure areas

Антонова

Pozolotina

Karimullina

2015

Biological Rhythm Research

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The seed progeny of smooth brome (Bromus inermis Leyss.) were evaluated over a year for their viability, mutation rate, resistance to radiation and antioxidant status in response to chronic radiation exposure. Bromus inermis is found in the Eastern Ural Radioactive Trace (EURT) area and the background territories (surrounding territories that are used as controls as they only have natural background radiation). The absorbed doses by smooth brome from the EURT area were 1.5-18.5 times higher compared to background locations for parent plants and 1.1-11.6 times higher for the seed embryos. There are predictable and asynchronous changes in the survival of shoots and root growth rate between background populations and chronically irradiated samples. The provocative dose of 250 Gy is more damaging in the winter months, than in the summer and autumn. The frequency of anomalies in shoots varied in different months, with the biggest rate of mutation recorded in physiologically harsher period (autumn-winter). There is no correlation between resulting survival rate of shoots and their resistance to radiation. The intense activity of the antioxidant systems (estimated by the content of low molecular weight antioxidants) allowed faster growth of the shoots and reduced the number of abnormalities seen in development.

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Section: Assessment Of the Radiation Dose On The B Inermis Maternal mentioning

confidence: 99%

Section: Calculating the Total Dose Rates For Maternal Plants And Seedsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Time-dependent changes of the physiological status ofBromus inermisLeyss. seeds from chronic low-level radiation exposure areas

Антонова

Pozolotina

Karimullina

2015

Biological Rhythm Research

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“…In long-term studies of P. sylvestris in the Chernobyl-contaminated Bryansk Oblast of Russia, germinating seeds have rates of cytogenetic damage of up to 1.3% that correlate with dose rate ( Geras’kin et al, 2011 ), and that is repeated elsewhere at even lower dose rates ( Evseeva et al, 2011 ). Several detailed studies of plants growing in the East Urals Radioactive Trace, which has the longest history (1957 onwards) of any widely studied radioactively contaminated site and has dose rates of up to 240 mGy/y ( c. 28 μGy/h), have shown dose-dependent effects on germination or viability of seeds of Taraxacum officinale ( Pozolotina et al, 2012 ), Melandrium album ( Antonova et al, 2013 ), and Leonurus quinquelobatus ( Karimullina et al, 2015 ). Several authors have noted that chronic low dose rates of IR can make germination more variable, particularly in response to weather conditions ( Antonova et al, 2013 ; Geras’kin et al, 2016 ) and other soil contaminants ( Evseeva et al, 2009 ; Karimullina et al, 2015 ).…”

Section: The Effects Of Ionizing Radiation On Plantsmentioning

confidence: 99%

Ionizing Radiation, Higher Plants, and Radioprotection: From Acute High Doses to Chronic Low Doses

2018

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Understanding the effects of ionizing radiation (IR) on plants is important for environmental protection, for agriculture and horticulture, and for space science but plants have significant biological differences to the animals from which much relevant knowledge is derived. The effects of IR on plants are understood best at acute high doses because there have been; (a) controlled experiments in the field using point sources, (b) field studies in the immediate aftermath of nuclear accidents, and (c) controlled laboratory experiments. A compilation of studies of the effects of IR on plants reveals that although there are numerous field studies of the effects of chronic low doses on plants, there are few controlled experiments that used chronic low doses. Using the Bradford-Hill criteria widely used in epidemiological studies we suggest that a new phase of chronic low-level radiation research on plants is desirable if its effects are to be properly elucidated. We emphasize the plant biological contexts that should direct such research. We review previously reported effects from the molecular to community level and, using a plant stress biology context, discuss a variety of acute high- and chronic low-dose data against Derived Consideration Reference Levels (DCRLs) used for environmental protection. We suggest that chronic low-level IR can sometimes have effects at the molecular and cytogenetic level at DCRL dose rates (and perhaps below) but that there are unlikely to be environmentally significant effects at higher levels of biological organization. We conclude that, although current data meets only some of the Bradford-Hill criteria, current DCRLs for plants are very likely to be appropriate at biological scales relevant to environmental protection (and for which they were intended) but that research designed with an appropriate biological context and with more of the Bradford-Hill criteria in mind would strengthen this assertion. We note that the effects of IR have been investigated on only a small proportion of plant species and that research with a wider range of species might improve not only the understanding of the biological effects of radiation but also that of the response of plants to environmental stress.

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“…It is well known that plants respond to ecological instability, including leaf morphoses, root necrosis, and mutations of seed progeny (Gladkov, 2007;Pozo lotina et al, 2010;Antonova et al, 2013). The data that were obtained in the course of studying the mor phology of plant pollen grains can also serve as criteria for the assessment of the quality of the present day environment and the presence of toxic compounds.…”

Section: Introductionmentioning

confidence: 98%

The interrelation between pollen abnormalities and polymorphism and the increased contents of toxic elements in flowers and flower buds in Aconogonon angustifolium (Pall.) Hara. and Papaver nudicaule L.

2015

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The pollen morphology of Aconogonon angustifolium (Pall.) Hara. and Papaver nudicaule L. from Sherlovogorskii ore district of Zabaikalskii krai was considered depending on toxic agent contents in flowers and flower buds. It was determined that the pollen polymorphism rate under the conditions of elevated toxi cant contents was higher in Papaver nudicaule L. than in Aconogonon angustifolium (Pall.) Hara. Morpholog ical abnormalities of Papaver nudicaule pollen can be considered as an indicator of the environmental quality.

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Intraspecific variation in Melandrium album along a radioactive contamination gradient at the Eastern Ural radioactive trace

Cited by 19 publications

References 23 publications

Time-dependent changes of the physiological status ofBromus inermisLeyss. seeds from chronic low-level radiation exposure areas

Time-dependent changes of the physiological status ofBromus inermisLeyss. seeds from chronic low-level radiation exposure areas

Ionizing Radiation, Higher Plants, and Radioprotection: From Acute High Doses to Chronic Low Doses

The interrelation between pollen abnormalities and polymorphism and the increased contents of toxic elements in flowers and flower buds in Aconogonon angustifolium (Pall.) Hara. and Papaver nudicaule L.

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