Effect of Methyl Jasmonate on Carbohydrate Composition, α-Amylase Activity and Growth of Triticale (Triticosecale Witmmack) Seedlings

Authors
L. Lahuta 1
K. Zalewski 2
K. Głowacka 1
B. Nitkiewicz 3
R. Amarowicz 4
1 Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, Poland.
2 Department of Biochemistry, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
3 Department of Biochemistry, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
4 Department of Chemical and Physical Properties of Food, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences in Olsztyn, Poland.
Abstract
The effect of Methyl Jasmonate (MJ, jasmonic acid methyl ether) at 10-6-10-3M concentrations on triticale kernels germination, seedling growth, changes in soluble carbohydrates content and composition, and activity of α-amylase was studied. MJ inhibited the germination of triticale kernels, possibly due to decreasing activity of α-amylase, leading to the depletion of soluble carbohydrates in both embryonic and endosperm tissues. In this way, MJ reduced starch degradation. A lower amount of soluble carbohydrates in germinating seeds decreased water uptake (between 24 and 72 hours of germination) and delayed seedling development. The above effect can be attributed to high concentrations of MJ in the incubation mixture (10-3M, 10-4M). MJ reduced the number of embryonic roots in 5-days-old seedlings in all examined concentration ranges.

Keywords

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Journal of Agricultural Science and Technology
Volume 19, Issue 5
September and October 2017
Pages 1127-1137