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Journal of Bioactive and Compatible Polymers
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Polyethers with 8-Hydroxy-54-Quinolinyl Chelating End-Groups: Effect on Iron Nutrition of Plants and Antibacterial/Antimycotic Effects

M. Ignatova

Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

N. Manolova

Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

I. Rashkov

Laboratory of Bioactive Polymers, Institute of Polymers, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

G. Ignatov

Institute of Plant Physiology "Acad. M. Popov", Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

E. Russeva

Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

The effect of Fe3+ chelates of polyethers having terminal 8-quinolinol (8Q) residues linked to the polymer chain at different ring positions on the remedy of iron-deficient maize plants was studied. It was found that Fe3+ chelates of polymers with 8Q groups attached at the 5-position (HOQ-P-QOH) were the most effective. Decreasing the temperature and photosynthetic photon flux density caused a four-fold retardation in the remedy of iron-deficient plants. The results are explained in terms of the stability of the Fe3+ complexes. The microbiological tests showed that the polyethers were active against Gram-positive and Gram-negative bacteria. HOQ-P-QOH also exhibited antimycotic activity.

Journal of Bioactive and Compatible Polymers, Vol. 15, No. 4, 321-333 (2000)
DOI: 10.1177/088391150001500404
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