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ISSN 2410-7751 (Print)
ISSN 2410-776X (Online)

 2 2015

"Biotechnologia Acta" V. 8, No 2, 2015;  
https://doi.org/10.15407/biotech8.02.078
Р. 78-83, Bibliography 18, English
Universal Decimal classification: 57.023 581.1

THE OVEREXPRESSION OF GENE ENCODING RICE POTASSIUM CHANNEL - OsТРКa INCREASES THE SALT AND DROUGHT TOLERANCE OF PLANTS

S.V. Isayenkov 1, A. Mian 2, F. J. M. Maathuis 2

1Institute of Food Biotechnology and Genomics of the National Academy of Sciences of Ukraine, Kyiv
2University of York, UK

The main aim of this study was to investigate the role of potassium TPK channel (OsTPKa) from rice in regulation of salinity and drought stresses, potassium deficiency. In order to elevate the expression level of gene encoding two-pore potassium channel OsTPKa, the stable agrobacterium mediated transformation of plants was performed.

The elevation of OsTPKa expression level in transformed plants leads to improvement of salt and drought tolerance of transformed plants was found during experiments. In conditions of potassium deficiency or salt stress the plants with elevated OsTPKa expression level exhibit better growth rates, decreasing of sodium accumulation in plant tissues.

Key words: OsTPKa overexpression, Oriza sativa, salt stress, drought stress, potassium deficiency, potassium vacuolar channels.

© Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, 2015