EXPRESSION OF THE PEROXIDASE GENE FROM PINUS SYLVESTRIS L. IN SEEDLINGS UNDER ABIOTIC STRESS

V.A. Kovaleva, N.I. Hrunyk, Yu.M. Yusypovych, R.T. Gout

Abstract


Abiotic factors such as cold, salt, drought, flooding, and heavy metal pollutants cause production of reactive oxygen species in different intracellular andextracellular compartments in plants.Peroxidases play a key role in the control of cellular H2Olevel. Extracellular peroxidases are involved in a wide range of physiological processes such as lignification, suberization, cross-linking of cell wall proteins, stress tolerance, and defense against phytopathogenic attacks. The activity of extracellular peroxidases in roots of seven-day-old Scots pine seedlings was detected. Expression of the Scots pine peroxidase gene was up-regulated by copper, cobalt, zinc, sodium chloride, flooding and hydrogen peroxide treatments. High temperature and drought suppressed expression of the gene.

Keywords


abiotic stress; gene expression; peroxidase; Scots pine

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DOI: https://doi.org/10.15421/40260813

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