Abstract
Naphthalene-1-acetic acid (HNAA), dichlorophenoxy acetic acid (HDAA), and indole-3-acetic acid (HIAA) are auxinhormones that can affect the growth of plants. The lanthanide complexes of the above auxinhormone LnA3-3H2O (Ln = La3+, Ce3+, Sm3+, Er3+, Yb3+; HA = HNAA, HDAA, HIAA; A = NAA-, DAA-, IAA-) were synthesized and are characterized in this paper. The solubility and IR spectra of these complexes were also studied. Experiments of the effects of LnCl3-nH2O, HA, and LnA3-3H2O on the growth rate of wheat coleoptile sections show, that LnCl3-nH2O promotes the growth of wheat coleoptile when this compounds concentration is lower than 2 x 10-5 M and the promotion is very significant when the concentration of Ln3+ is lower than 8 x 10-6 M. It was also found that the effect of LnA3· 3H2O on the growth of wheat coleoptile is stronger than that of LnCl3·nH2O and HA, which indicates that the combination of Ln3+ with HA act synergistically.
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Wenmian, H., Jian, F. & Zhengzhi, Z. Effect of auxinhormone lanthanide complexes on the growth of wheat coleoptile. Biol Trace Elem Res 64, 27–35 (1998). https://doi.org/10.1007/BF02783322
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DOI: https://doi.org/10.1007/BF02783322