Search Results - "Backor, M."

Zn/Pb-tolerant lichens with higher content of secondary metabolites produce less phytochelatins than specimens living in unpolluted habitats by Pawlik-Skowrońska, B., Bačkor, M.

“…Many lichens can cope with heavy-metal stress, however, the mechanisms of lichen tolerance are still not fully understood. Some lichen secondary metabolites…”
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Short-term influence of Cu, Zn, Ni and Cd excess on metabolism, ultrastructure and distribution of elements in lichen Xanthoria parietina (L.) Th. Fr by Piovár, J., Weidinger, M., Bačkor, M., Bačkorová, M., Lichtscheidl, I.

“…Lichens are symbiotic organisms that are very sensitive to heavy metal pollution. However, there is little evidence of how heavy metal pollution affects the…”
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Allelopathic effects of lichen secondary metabolites and their naturally occurring mixtures on cultures of aposymbiotically grown lichen photobiont Trebouxia erici (Chlorophyta) by Lokajova, V, Backorova, M, Backor, M

“…In the present work, the phytotoxic effects of secondary metabolites extracted from five lichen species (Cladonia arbuscula var. mitis, Cladonia furcata,…”
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Lichen secondary metabolites as DNA-interacting agents by Plsíkova, J., Stepankova, J., Kasparkova, J., Brabec, V., Backor, M., Kozurkova, M.

“…•Interactions of selected lichen secondary metabolites 1–4 with calf thymus DNA were studied.•Binding constants of 4.3×105–2.4×107M−1 were determined from…”
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Physiological attributes of the lichen Cladonia pleurota in heavy metal-rich and control sites near Sudbury (Ont., Canada) by Bačkor, M., Fahselt, D.

“…The recovery of lichen communities on metal-rich historical ore-roasting beds west of Sudbury has been slow, and our objective was to locate and measure metals…”
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Interactions of lichens with heavy metals by Bačkor, M, Loppi, S

“…Recent developments in knowledge about the interactions between lichens and heavy metals at different levels, from populations to cells and from ecology to…”
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Tetrazolium reduction as an indicator of environmental stress in lichens and isolated bionts by Bačkor, M., Fahselt, D.

“…A rapid and inexpensive quantitative method was developed for evaluating the physiological condition of intact lichens and cultured symbionts. Formation of the…”
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P116 Alkaline water is ineffective in preventing breast cancer by Kiskova, T, Demeckova, V, Topitzerova, J, Gancarcikova, S, Mudronova, D, Jendzelovska, Z, Velika, B, Tomeckova, V, Backor, M

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Variable responses of different human cancer cells to the lichen compounds parietin, atranorin, usnic acid and gyrophoric acid by BaAekorova, M, BaAekor, M, Mikes, J, Jendzelovsky, R, FedoroAeko, P

“…One of the ways for searching for potentially new anti-cancer drugs is the testing of various naturally synthesized compounds. Lichens are a source of unique…”
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Lichen secondary metabolites are responsible for induction of apoptosis in HT-29 and A2780 human cancer cell lines by Bačkorová, M., Jendželovský, R., Kello, M., Bačkor, M., Mikeš, J., Fedoročko, P.

“…► Cancer cells are differentially sensitive against secondary metabolites of lichens. ► Atranorin and usnic acid are activators of apoptosis in A2780 and HT-29…”
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Effects of copper on wild and tolerant strains of the lichen photobiont Trebouxia erici (Chlorophyta) and possible tolerance mechanisms by BACKOR, M, FAHSELT, D, DAVIDSON, R. D, WU, C. T

“…The influence of copper was assessed on wild and tolerant strains of the lichen photobiont Trebouxia erici and shown to have multiple toxic effects. Addition…”
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Fire and site type effects on the long-term carbon and nitrogen balance in pristine Siberian Scots pine forests by Wirth, C., Schulze, E.-D., Lühker, B., Grigoriev, S., Siry, M., Hardes, G., Ziegler, W., Backor, M., Bauer, G., Vygodskaya, N. N.

“…Effects of fire and site type on carbon (C) and nitrogen (N) balances were determined by following the change of total and component C and N pools along four…”
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Lichens affect boreal forest ecology and plant metabolism by Pizňak, M., Bačkor, M.

“…Lichens, symbiotic organisms consisting from mycobionts (fungi) and photobionts (algae and/or cyanobacteria), play a substantial role in boreal coniferous…”
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Allelopathic effects of lichen metabolite usnic acid on growth and physiological responses of Norway spruce and Scots pine seedlings by Pizňak, M., Kolarčik, V., Goga, M., Bačkor, M.

“…Lichens are globally widespread organisms playing an important role in diverse ecosystems. They produce secondary metabolites, unique compounds, which play…”
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The presence of usnic acid does not protect the lichen Cladina arbuscula subsp. mitis against the long-term copper excess by Bačkorová, M., Biľová, I., Kimáková, T., Bačkor, M.

“…Cladina arbuscula subsp. mitis grows on the surfaces of historical Cu-mine spoil heaps rich in Cu, as well as on the surfaces of substrata that are not metal…”
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Copper tolerance in the lichen photobiont Trebouxia erici (Chlorophyta) by BACKOR, M, VACZI, P

“…A copper-tolerant strain of Trebouxia erici was obtained from axenic culture (UTEX 911) by increasing the copper concentration of the medium up to 4 mM. On…”
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Zn/Pb-tolerant lichens with higher content of secondary metabolites produce less phytochelatins than specimens living in unpolluted habitats: Metal(loid) tolerance in plants and lichens by PAWLIK-SKOWRONSKA, B, BACKOR, M

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Removal of lichen secondary metabolites affects food choice and survival of lichenivorous moth larvae by Poykko, H, Hyvarinen, M, Backor, M

“…Host use and selection by herbivores are often determined by host chemistry. Lichen secondary chemicals frequently have been assumed to have a defensive role…”
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Physiology of Matricaria chamomilla exposed to nickel excess by Kováčik, Jozef, Klejdus, Bořivoj, Kaduková, Jana, Bačkor, Martin

“…Influence of nickel (Ni) excess on selected physiological aspects of Matricaria chamomilla metabolism after 10 days of presence was studied. Biomass, water…”
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Tolerance of the lichen Xanthoria parietina (L.) Th. Fr. to metal stress by Dzubaj, Alexander, Bačkor, Martin, Tomko, Jaroslav, Peli, Evelin, Tuba, Zoltán

“…Comparisons were made between the content of Al, Cd, Cu, Fe, Mn, Pb, Sb and Zn in thalli of the lichen Xanthoria parietina and selected physiological…”
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