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Article

Synthesis, Characterization, and Encapsulation of Novel Plant Growth Regulators (PGRs) in Biopolymer Matrices

1
Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia
2
Biotechnology Department, M. Auezov South-Kazakhstan University, Tauke-Khan, 160000 Shymkent, Kazakhstan
3
Ukrainian State University of Chemical Technology, Gagarina, 49000 Dnipro, Ukraine
*
Author to whom correspondence should be addressed.
Academic Editor: Iolanda Francolini
Int. J. Mol. Sci. 2021, 22(4), 1847; https://doi.org/10.3390/ijms22041847
Received: 21 January 2021 / Revised: 9 February 2021 / Accepted: 10 February 2021 / Published: 12 February 2021
(This article belongs to the Special Issue Chitosan Functionalizations, Formulations and Composites 2.0)
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-methoxycarbonylacrylic acid (PGR2) and 1-methyl-3-methylamino-maleimide (PGR3) have been synthesized and their growth-regulating properties investigated. Laboratory testing revealed their plant growth-regulating activity. PGR1 showing the most stimulating activity on all laboratory tested cultures were used in field experiments. Results showed that PGR1 is a highly effective environmentally 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 constituents including mainly electrostatic interactions and hydrogen bonds. The differences in the microcapsule 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. View Full-Text
Keywords: biopolymeric microcapsules; encapsulation; dehydroamino acids derivatives; plant growth regulators; agriculture biopolymeric microcapsules; encapsulation; dehydroamino acids derivatives; plant growth regulators; agriculture
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MDPI and ACS Style

Vlahoviček-Kahlina, K.; Jurić, S.; Marijan, M.; Mutaliyeva, B.; Khalus, S.V.; Prosyanik, A.V.; Vinceković, M. Synthesis, Characterization, and Encapsulation of Novel Plant Growth Regulators (PGRs) in Biopolymer Matrices. Int. J. Mol. Sci. 2021, 22, 1847. https://doi.org/10.3390/ijms22041847

AMA Style

Vlahoviček-Kahlina K, Jurić S, Marijan M, Mutaliyeva B, Khalus SV, Prosyanik AV, Vinceković M. Synthesis, Characterization, and Encapsulation of Novel Plant Growth Regulators (PGRs) in Biopolymer Matrices. International Journal of Molecular Sciences. 2021; 22(4):1847. https://doi.org/10.3390/ijms22041847

Chicago/Turabian Style

Vlahoviček-Kahlina, Kristina, Slaven Jurić, Marijan Marijan, Botagoz Mutaliyeva, Svetlana V. Khalus, Alexander V. Prosyanik, and Marko Vinceković. 2021. "Synthesis, Characterization, and Encapsulation of Novel Plant Growth Regulators (PGRs) in Biopolymer Matrices" International Journal of Molecular Sciences 22, no. 4: 1847. https://doi.org/10.3390/ijms22041847

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