Treatment of Polessky 185 hybrid maize seed with 0.001% aqueous solutions of oligochitosans (OC) with molecular weights (MW): 6.9 kDa; 18.4 kDa; 28.6 kDa stimulates root growth and increase in mass of seedlings. Oligochitosan with MW 28.6 kDa had the greatest elicitor activity. Treatment of seeds with 0.001% OC aqueous solutions with varying degrees of acetylation (AD): 7.0 %; 9.7 %; 16.4 %; 34.7 % led to an increase in the total mass of seedlings, regardless of the AD. Analysis of metabolites content using GC-MS in methanol extracts of the roots of corn on the 14th day of the vegetation showed, that the seeds that were processed with OC with MW 28.6 kDa and AD 28.3% showed a relative increase of the content of intermediate metabolites of hormone synthesis pathways: brassinosteroids, abscisic acid.
Elicitor activity of oligohytosanes with different molecular mass and degree of acetylation when treating seeds of corn
V. P. Kurchenko, M. A. Kapustin, N. V. Sushinskaya, E. V. Chudnovskaya, K. I. Mayorova, V. E. Tikhonov; Elicitor activity of oligohytosanes with different molecular mass and degree of acetylation when treating seeds of corn. AIP Conf. Proc. 11 January 2019; 2063 (1): 030010. https://doi.org/10.1063/1.5087318
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