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• Species-specificity of the glutathione reduced form accumulation in the arboreal plants, testing influence of industrial emissions

  105-110

  Dmitry Syshchykov

  Views:

  72

  Conducted are researches of dynamics of glutathione reduced form maintenance in the leaves of arboreal plants which grow in the zones of different level of contamination by industrial emissions of“Red Lead Factory” LTD and ArselorMittal Kryvyi Rig. For comparison, similar  investigations were conducted in the intact Botanic Garden in s.c.t. Sofievka. Findings testify to absence of negative influence of industrial emissions and, thus, the arboretum of botanical garden also can be examined as conditional control. It was stated that it is set a few strategies of active oxygen forms and their metabolites deactivation, appearing in cells under action of environment negative factors. To our opinion, fluctuation of glutathione reduced form maintenance can examine as an index of plants stability, on which investigational species can be distributed on steady and moderato steady.

• Plant production possibilities on a heavy metal contaminated soil with the purpose of biorefinery

  215-222

  Ágnes Dergez

  Lajos Blaskó

  Diána Bordás

  György Zsigrai

  István Kiss

  Sándor szabó

  Views:

  86

  Significant part of not cultivated area of Hungary is not suitable for agricultural utilization because of industrial
  pollution. Technologies of biorefinery make reutilization of contaminated areas possible. Biomass of plants
  produced on polluted soils can be raw material of valuable products. Applicability of biorefinery was tested on a
  heavy metal polluted soil, where the contamination originated from previous mining activity. Complete biomass
  utilization was aimed to obtain cosmetic ingredients, pharmaceutical agents, and precursors. During our research
  work 88 plant species and varieties were produced and tested for potential utilizable components. Levels of
  possible contaminants in these plants were monitored, and amounts of carbohydrates, protein, organic acid and
  cellulose were determined as well. Different plant extracts were tested as potential sources of biologically effective
  components or as raw materials for lactic acid fermentation. Our results show that biorefinery is a real possibility
  for utilization of polluted areas. Numerous plants could be cultivated on contaminated areas without increased
  levels of contaminants in their tissues, thus they can be sources of valuable compounds.

• The importance of selenium in the living world and in the scientific research

  278-286

  Éva Széles

  Árpád Tóth

  Attila Nagy

  József Prokisch

  Béla Kovács

  Zoltán Győri

  Views:

  147

  Presently, selenium (Se) is one of the most investigated microelements. It has an important proven role in many vital processes. Directly or indirectly, selenium deficiency can play a role in the development of many diseases. On the other hand, the concentration range in which selenium is essential is narrow; there is a narrow gap between necessary and toxic content in dietary intake. In this context, selenium contamination poses a further health risk for people if they live near the industrial areas and mining activity.
  In this paper, we comprehensively introduce the very important trace element selenium. We studied the base parameters, deposit, analytic and deficiencies, problem of contamination and also the solution of contamination problems of selenium.

• Intensity of free radical processes in the leaves of arboreal plants under act of industrial dust borne extracts

  83-87

  Olga Piskova

  Vitalii Gryshko

  Views:

  65

  The influence of industrial pollutants on the intensity of lipid peroxidation in the assimilatory organs of arboreal plant was investigated. The differential changes of the probed indexes are set depending on the species. Information is got can testify to participation of lipid peroxidation products in forming of reactions-answers of arboreal plants on influence of industrial dust borne extract with content of heavy metals. Determination of level and rates of accumulation of Zn, Ni, Pb and Cd, in the leaves of arboreal plants in the conditions of different 
  contamination level allowed to take species to two groups. To the first (phytoextraction potential exceeds a base-line level in 10 times) belong Populus bolleana Lauche, P. italica (Du Roi) Moench, Picea pungens Engelm and Sorbus aucuparia L. To the second (exceeds a base-line level from 5 to 10 times) belong Acer negundo L., Aesculus hippocastanum L., Betula pendula Roth and Tilia cordata Mill. The most substantial increase of peroxidation secondary product content (more than in 2.5 times) is peculiar for B. pendula, A. hippocastanum and P. pungens Engelm., that well conforms to the rates of heavy metals translocation, it has however species-specific character.