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  • Analysis of local dandelion (Taraxacum officinale s.l.) cenopopulations from radioactively contaminated zones.

    Author(s) : Pozolotina, V. N.

    Author Affiliation : Institute of Plant and Animal Ecology, Ural Division, Russian Academy of Sciences, ul. Vos'mogo Marta 202, Yekaterinburg 620219, Russia.

    Journal article : Russian Journal of Ecology 2001 Vol.32 No.2 pp.102-109 ref.27

    Abstract : Local dandelion (Taraxacum officinaletaraxacum officinaleSubject Category: Organism Names
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    ) populations were studied in the areas of the Eastern Ural Radioactive Trace and the floodplain of the Techa River near the village of Brodokalmak, RussiarussiaSubject Category: Geographic Entities
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    , in its upper reaches. In impact plots, the density of soil and plant cover contamination with 90Sr and 137Cs exceeded the background level by factors of 13-440 and 2-500, respectively; the radiationradiationSubject Category: Miscellaneous
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    load exceeded the background level by factors of 1.5 to 45. The seed progeny of plantsplantsSubject Category: Organism Names
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    from these plots was characterized by a high proportion of abnormal seedlings and an increased level of chromosome aberrationschromosome aberrationsSubject Category: Miscellaneous
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    in meristem cells. In some years, variation in the seedling viabilityviabilitySubject Category: Properties
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    , growthgrowthSubject Category: Natural Processes
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    rate, and developmental rate in these plots exceeded the reaction norm of plants from the background plot, demonstrating both stimulation and inhibition of growth processes. The response of seeds to acute irradiation at high challenging doses varied depending on the level of background radiation in the plots.

    ISSN : 1067-4136

    DOI : 10.1023/A:1009588531794

    Record Number : 20013151788

    Publisher : International Academic Publishing Company "Nauka/Interperiodica"

    Location of publication : Moscow

    Country of publication : Russia

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Taraxacum officinaletaraxacum officinaleSubject Category: Organism Names
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    Descriptor(s) : caesiumcaesiumSubject Category: Chemicals and Chemical Groups
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    , chromosome aberrationschromosome aberrationsSubject Category: Miscellaneous
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    , floodplainsfloodplainsSubject Category: Topographic Features
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    , genetic variationgenetic variationSubject Category: Properties
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    , growthgrowthSubject Category: Natural Processes
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    , radiationradiationSubject Category: Miscellaneous
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    , radioactive wastesradioactive wastesSubject Category: Commodities and Products
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    , radioactivityradioactivitySubject Category: Miscellaneous
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    , strontiumstrontiumSubject Category: Chemicals and Chemical Groups
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    , viabilityviabilitySubject Category: Properties
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    Identifier(s) : cesiumcesiumSubject Category: Chemicals and Chemical Groups
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    , chromosome abnormalities, flood plains, genetic variability, genotypic variability, genotypic variation, Russian Federation

    Geographical Location(s) : RussiarussiaSubject Category: Geographic Entities
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    Broader term(s) : TaraxacumtaraxacumSubject Category: Organism Names
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    , AsteraceaeasteraceaeSubject Category: Organism Names
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    , AsteralesasteralesSubject Category: Organism Names
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    , eudicotseudicotsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , APEC countriesapec countriesSubject Category: Institutions and Organisations
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    , Developed Countriesdeveloped countriesSubject Category: Miscellaneous
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