TY - JOUR AU - Lyubushkina, I.V. AU - Kirichenko, K.A. AU - Grabelnych, O.I. AU - Pobezhimova, T.P. AU - Fedyaeva, A.V. AU - Stepanov, A.V. AU - Voinikov, V.K. T1 - Role of Changes in Cell Fatty Acids Composition in the Increasing of Frost Resistance of Winter Wheat Suspension Culture JO - Journal of Stress Physiology & Biochemistry Y1 - 2013 VL - 9 IS - 4 SP - 219 EP - 229 UR - http://www.jspb.ru/issues/2013/N4/JSPB_2013_4_219-229.pdf KW - Triticum aestivum L. KW - suspension culture KW - low positive temperatures KW - freezing temperatures KW - cold hardening KW - fatty acids composition N1 - Owner: Алексей N1 - Added to JabRef: 2013.10.14 N2 - Influences of low temperatures (4 and 8 ° С) on the frost tolerance and fatty acid compositions of cells in a winter wheat suspension culture have been studied. It has been found that treatment of the culture with 4 °C (7 days) did not protect cells from subsequent freezing temperature action (-8 °С, 6 h) and was not accompanied significant changes in the fatty acid composition. On the contrary, the treatment of the culture with the temperature 8 °C (7 days) prevented the death caused by freezing temperature and the content of saturated fatty acids decreased: pentadecanoic acid (by 35,0%), palmitic acid (by 19,9%) and stearic acid (by 65,4%), and the content of α-linolenic acid increased by 94%. That was the cause of the double bond index (DBI) increase by 16%. The role of fatty acids composition changes in the process of increasing frost tolerance in plants are discussed. ER -