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Effects of exogenous nitric oxide on cadmium toxicity in black poplar (Populus nigra): physiological approaches

References Ahlfors, R., Brosché, M., Kollist, H., Kangasjärvi J., 2008: Nitric oxide modulates ozone-induced cell death, hormone biosyn-thesis and gene expression in Arabidopsis thaliana . Plant Journal 58, 1–12. Amani, A.L., 2008: Cadmium induced changes in pigment content, ion uptake, proline content and phosphoenolpyruvate carboxylase activity in Triticum aestivum seedlings. Australian Journal of Basic and Applied Sciences 2, 57–62. Arasimowicz, M., Floryszak-Wieczorek, J., 2007: Nitric oxide as a bioactive signalling molecule in plant

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Flora and Vegetation of a Copper Mine Heap in Richtárová (The Starohorské Vrchy Mts., Slovakia)

Abstract

The paper presents the results of floristic and phytosociological research conducted during growing season 2011 on a copper mine heap Richtárová, near the village Staré Hory situated in buffer zone of the Low Tatras National Park. In total, we found 147 taxa of vascular plants. The dominant plant species of the mine heap is Agrostis capillaris, which sometimes forms relatively continuous cover, and other species growing in small islands of plants tolerant to specific environmental conditions, especially Silene dioica, Acetosella vulgaris, Arabidopsis arenosa. We sampled 8 phytosociological relevés. Localities of relevés were selected considering variability of plant communities on the all mine heap.

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Xerothermic vegetation of fallow lands in western Małopolska

Xerothermic vegetation of fallow lands in western Małopolska

In 2005-2011 the occurrence of xerothermic vegetation on fallow lands located on hills near Trzebinia and Jaworzno was studied. The Braun-Blanquet relevés were performed on SE, S and SW slopes. Well-drained brown loamy soils developed on shallow sands on Triassic dolomites, lime-stone and Myślachowice conglomerate dominating at the sites. Investigations were also conducted on amid-field balks and fallow lands where in 2005 moderate agricultural activity was resumed. In general, superficial ploughing has not eliminated plant cover, but only disturbed turf and uncovered soil seed bank of former cultivation weeds.

Fields 10-15 years after they had been abandoned, were dominated by the Dauco-Picridetum hieracioidis xerothermic ruderal association, with considerable share of Malva alcea and Verbascum species (V densiflorum, V. lychnitis, V. phlomoides and V. thapsus) in younger fallows. These communities were characterized by occurrence of xerothermic grasslands and warm thickets taxons from Festuco-Brometea and Trifolio-Geranietea sanguinei classes, i.a.: Achillea pannonica, Allium scorodoprasum, Bromus erectus, Centaurea stoebe, Cerinthe minor, Filipendula vulgaris, Fragaria viridis, Gentianella ciliata, Phleum phleoides, Valeriana angustifolia, Veronica spicata, Viola hirta and Thesium linophyllon.

Additionally, on ploughed fallows in gaps of turf numerous annual and biennial segetal as well as ruderal species were observed. In many places thermophilous segetal association of Papaveretum argemones developed, in which a significant share of Avena fatua, Camelina microcarpa subsp. sylvestris, Consolida regalis, Lithospermum arvense and Papaver rhoeas was noted in addition to Arabidopsis thaliana, Papaver argemone and Veronica triphyllos.

The oldest fallows (20-25 years after abandonment), amid-fields steep slopes and balks were covered by Geranio-Peucedanietum cervariae associations. Their physiognomy was formed by Agrimonia eupatoria, Brachypodium pinnatum and Origanum vulgare, sometimes also by Geranium sanguineum, Peucedanum cervaria and P. oreoselinum. This vegetation was in spatial contact with thermophilous thickets of Berberidion alliance with Cornus sanguinea, Crataegus monogyna, Prunus spinosa, Rhamnus cathartica, and Rosa canina.

On xerothermic post-agricultural areas specific stable communities formed by thermophilous species from meadows, ruderals, grasslands and thickets occurred. A new phenomenon of recent years, related to EU benefits - superficial ploughing of fallows, not followed by regular cultivation - favours segetal vegetation. Weeds communities are regressing in Europe as an effect of modern agriculture. Post-agricultural secondary habitats are important elements that should be taken into account in studies of appearance and protection of xerothermic plants.

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Pollen grain on the compatible and incompatible stigma of Secale cereale L. / Ziarno pyłku na zgodnych i niezgodnych znamionach Secale cereale L.

regulation of pollen tube growth in Arabidopsis. Development 120: 3405-3418. Kirpes C., Lynn G. C., Lersten N. R. 1996. Systematic significance of pollen arrangement in microsporangia of Poaceae and Cyperaceae: review and observations on representative taxa. Am. J. Bot. 83, (12): 1609-1622. Knox R. B. 1984. Pollen-pistil Interaction. In: H. F. Linskens, J. Heslop-Harrison (eds). Cellular Interaction. Springer Verlag, Berlin-Heidelberg-New York-Tokio 102: 9-24. Lord E. 2000. Adhesion and cell movement during pollination

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Effects of salt stress on proline content, expression of delta-1-pyrroline-5-carboxylate synthetase, and activities of catalase and ascorbate peroxidase in transgenic tobacco plants

. 1981. Hydrogen peroxide is scavenged by ascorbate- specific peroxidase in spinach chloroplast. Plant Cell Physiol. 22: 867-880. Nanjo T., Kobayashi M., Yoshiba Y., Yukika S., Keishiro W., Tsukaya H., Kakubari Y., Yamaguchi-Shinozaki K., Shinozaki K. 1999. Biological functions of proline in morphogenesis and osmotolerance revealed in antisense transgenic Arabidopsis thaliana. The Plant Journal. 18: 185-193. Okuma E., Soeda K., Tada M., Murata Y. 2000. Exogenous proline mitigates the inhibition of growth of

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Cytokinin influence on the nDNA and enzyme activity of sucrose metabolizing pathway during senescence of sugar beet (Beta vulgaris L.) leaves

References Bate N. J., Straus N. A., Thompson J. E. (1990) Expression of chloroplast photosynthesis genes during leaf senescence. Physiol. Plant. 80, 217-225. Buchanan-Wollaston V. (1997) The molecular biology of leaf senescence. Exp. Biol. 48, 181-199. Daia N., Schaffer A., Petreicov M., Shahak L., Gillr L., Rather K., Levine A., Granot D. (1998) Overexpression of Arabidopsis hexokinase in tomato plants inhibits growth, reduces photosynthesis and induces rapid senescence

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The Role of Biostimulants in Increasing Barley Plant Growth and Yield under Newly Cultivated Sandy Soil

protein from common plant leaves for use as human food. Am.J.Appl.Sci., 7(3):331-342. Hare, P.D. & Cress, W.A.(1996). Tissue-specific accumulation of transcript encoding Δ1-pyrroline-5-carboxylate reductase in Arabidopsis thaliana . Plant Growth Regul., 19(3): 249-256, DOI: 10.1007/BF00037798 Helaly, M.N., Farouk, S., Arafa, S.A. & Amhimmid Naema, B.I.A. (2018). Inducing salinity tolerance of rosemary ( Rosmarinus officinalis L.) plants by chitosan or zeolite application. Asian J.Adv.Agric.Res., 5(4):1-20, DOI: 10.9734/AJAAR/2018/40051 Hobara

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Protein pattern of canola (Brassica napus L.) changes in response to salt and salicylic acid in vitro

. Physiol. Biochem. 7: 250-267. Blumwald E., Grover A. 2006. Salt tolerance. In: Plant biotechnology: current and future uses of genetically modified crops (HALFORD N. G., Eds), pp. 206-224, John Wiley and Sons Ltd, UK. Borsani O., Valpuesta V., Botella M. A. 2001. Evidence for a role of salicylic acid in the oxidative damage generated by NaCl and osmotic stress in Arabidopsis seedlings. Plant Physiol. 126: 1024-1030. Bradford M. 1976. A rapid and sensitive method for the quantitation of microgram quantities of protein

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Effect of nanosilver on potato plant growth and protoplast viability

. Plant Physiol. 50: 117-124. Arifa S., Subramanim S., Lawson, T., Avistunenko D., Colbeck L., Demidchik V. 2012. Nanoparticle inhibit root and leaf growth, induce generation of reactive oxygen species and trigger elevation of cytosolic calcium in Arabidopsis thaliana . In: Abstracts of Plant Biology Congress. 29 July - 3 August, 2012, Albert - Ludwigs - University Freiburg, Germany, p 296. Batarseh K. I. 2004. Anomaly and correlation of killing in the therapeutic properties of silver (I) chelation with glutamic and tartaric acids. J

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Suitable Priming for Rice Yield Improvement

., Tabassum, R. & Ahmad, N. (2005). Physiological and biochemical aspects of pre-sowing seed treatments in fine rice ( Oryza sativa L.). Seed Sci.Technol., 33(3): 623-628, DOI:10.15258/sst.2005.33.3.09 Basra, S.M.A., Farooq, M., Wahid, A. & Khan, M.B. (2006). Rice seed invigoration by hormonal and vitamin priming, Seed Sci.Technol., 34(3): 753-758, DOI: 10.15258/sst.2006. 34.3.23 Borsani, O., Valpuesta, V. & Botella, M.A. (2001). Evidence for a role of salicylic acid in the oxidative damage generated by NaCl and osmotic stress in Arabidopsis seedlings

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