Synthesis, characterization, and encapsulation of novel plant growth regulators (Pgrs) in biopolymer matrices
Vlahoviček‐kahlina K. Jurić S. Marijan M. Mutaliyeva B. Khalus S.V. Prosyanik A.V. Vinceković M.
2 February 2021MDPI AG
International Journal of Molecular Sciences
2021#22Issue 41 - 17 pp.
Novel plant growth regulators (PGRs) based on the derivatives of dehydroamino acids 2,3‐dehydroaspartic acid dimethyl ester (PGR1), Z‐isomer of the potassium salt of 2‐amino‐3‐meth-oxycarbonylacrylic acid (PGR2) and 1‐methyl‐3‐methylamino‐maleimide (PGR3) have been synthe-sized and their growth‐regulating properties investigated. Laboratory testing revealed their plant growth‐regulating activity. PGR1 showing the most stimulating activity on all laboratory tested cul-tures were used in field experiments. Results showed that PGR1 is a highly effective environmen-tally friendly plant growth regulator with effects on different crops. Biopolymeric microcapsule formulations (chitosan/alginate microcapsule loaded with PGR) suitable for application in agriculture were prepared and characterized. Physicochemical properties and release profiles of PGRs from microcapsule formulations depend on the molecular interactions between microcapsule constitu-ents including mainly electrostatic interactions and hydrogen bonds. The differences in the micro-capsule formulations structure did not affect the mechanism of PGRs release which was identified as diffusion through microcapsules. The obtained results opened a perspective for the future use of microcapsule formulations as new promising agroformulations with a sustained and target release for plant growth regulation.
Agriculture , Biopolymeric microcapsules , Dehydroamino acids derivatives , Encapsulation , Plant growth regulators
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Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, Zagreb, 10000, Croatia
Biotechnology Department, M. Auezov South‐Kazakhstan University, Tauke‐Khan, Shymkent, 160000, Kazakhstan
Ukrainian State University of Chemical Technology, Gagarina, Dnipro, 49000, Ukraine
Department of Chemistry
Biotechnology Department
Ukrainian State University of Chemical Technology
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