New Water-Soluble Cytokinin Derivatives and Their Beneficial Impact on Barley Yield and Photosynthesis.

Autor:	Klos D; Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic., Dušek M; Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, CZ-182 21 Praha, Czech Republic., Samol'ová E; Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, CZ-182 21 Praha, Czech Republic., Zatloukal M; Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic., Nožková V; Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic., Nesnas N; Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, Melbourne, Florida 32901, United States., Plačková L; Laboratory of Growth Regulators, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic., Koprna R; Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic., Spíšek Z; Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic., Vylíčilová H; Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic., Plíhal O; Laboratory of Growth Regulators, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic., Doležal K; Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic.; Laboratory of Growth Regulators, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic., Voller J; Department of Experimental Biology, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic.; Institute of Molecular and Translational Medicine, Faculty of Medicine, Palacký University, Hněvotínská 5, CZ-77515 Olomouc, Czech Republic., Kadlecová A; Laboratory of Growth Regulators, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic.; Institute of Molecular and Translational Medicine, Faculty of Medicine, Palacký University, Hněvotínská 5, CZ-77515 Olomouc, Czech Republic., Strnad M; Laboratory of Growth Regulators, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic., Plíhalová L; Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic.; Laboratory of Growth Regulators, Palacký University & Institute of Experimental Botany ASCR, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic.
Jazyk:	angličtina
Zdroj:	Journal of agricultural and food chemistry [J Agric Food Chem] 2022 Jun 15; Vol. 70 (23), pp. 7288-7301. Date of Electronic Publication: 2022 Jun 06.
DOI:	10.1021/acs.jafc.2c00981
Abstrakt:	Solubility of growth regulators is essential for their use in agriculture. Four new cytokinin salts─6-benzylaminopurine mesylate ( 1 ), 6-(2-hydroxybenzylamino)purine mesylate ( 2 ), 6-(3-hydroxybenzylamino)purine mesylate ( 3 ), and 6-(3-methoxybenzylamino)purine mesylate ( 4 )─were synthesized, and their crystal structures were determined to clarify structural influence on water solubility. The mesylates were several orders of magnitude more water-soluble than the parent CKs. The new salts significantly reduced chlorophyll degradation and impairment of photosystem II functionality in barley leaf segments undergoing artificial senescence and had pronounced effects on the leaves' endogenous CK pools, maintaining high concentrations of functional metabolites for several days, unlike canonical CKs. A foliar treatment with 1 and 3 increased the harvest yield of spring barley by up to 8% when compared to treatment with the parent CKs while also increasing the number of productive tillers. This effect was attributed to the higher bioavailability of the mesylate salts and the avoidance of dimethyl sulfoxide exposure.
Databáze:	MEDLINE
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