Abstract
To investigate the physiological effects of rare earth ions, we have studied the effect of LaCl3 on the photosynthetic light reactions in tobacco (Nicotiana tobacum). When treated with 5–20 mg/L LaCl3 in Hoagland solution by water culture, the dry matter accumulation of different parts in tobacco, the content of chlorophyll increased gradually, but decreased when the concentration of LaCl3 was ≥ 50 mg/L. The optimum concentration for growth appeared to be about 20 mg/L of LaCl3 in nutrient solution. La3+ promoted the activities of the Hill reaction, Mg2+-ATPase, and stimulated the rate of photophosphorylation in chloroplast at low concentrations, but inhibited them at high concentrations. It is concluded that La3+ stimulated the growth of tobacco seedlings and accelerated the photosynthetic light reactions at suitable concentration in vivo.
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References
B. S. Guo, Rare Earths in Agriculture, China Agricultural Science and Technology Press, Beijing (1988).
J. Z. Ni, Bioinorganic Chemistry of Rare Earth Elements, Science Press, Beijing (1995).
Z. M. Wu, X. K. Tang, Z. W. Jia, et al., Studies on the effect of rare earth elements on the increment of yield in agriculture, J. Chin. Rare Earth Soc. 2(2), 76–80 (1984).
K. S. Chen, J. R. Zhang, Z. H. Peng, et al., Effect of NaCl3 on the grwth and iPA level of detached etiolated cotyledons of Brassica chinensis, J. Chin. Rare Earth Soc. 14(4), 379–381 (1996).
Q. H. Hu and Z. J. Ye. Physiological effects of rare earth elements on plant. Chin. Plant Physiol. Commun. 32(4), 296–300 (1996).
D. I. Arnon, Copper enzymes in isolated chloroplasts: polyphenol oxidase in Beta vulgaris, Plant Physiol. 24, 1–15 (1949).
J. Y. Ye and Q. Qian, Determination of Hill reaction by spectrophotometer. in Handbook of Plant Physiological Experiment, Y. L. Xue, ed. Shanghai Science and Technology Press, Shanghai, pp. 104–107 (1985).
Z. H. Huang, Determination of Mg2+-ATPase activity for chloroplast, in Handbook of Plant Physiological Experiment, Y. L. Xue, ed. Shanghai Science and Technology Press, Shanghai, pp. 111–114 (1985).
X. H. Yuan and H. Z. Yang, Determination of photophosphorylation rate for chloroplast, in Plant Physiological and Biochemical Experiment, X. H. Yuan and H. Z. Yang, eds. Higher Education Press, Beijing, pp. 183–186 (1983).
M. M. Bradford, A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding, Anal. Biochem. 72, 248–254 (1976).
B. L. Shen and X. B. Dai, Effect of rare earths on photosynthetic light reaction in chloroplast of Tricum aeseirum, Chinese Rare Earth 15(2), 71–72 (1994).
F. L. Zeng, M. F. Zhang, S. M. Zhou, et al., The effect of lanthanide chloride on abscisic acid and electron-transport activity of some crops. Biol. Trace Element Res. 67, 277–284 (1999).
W. J. Chen, Y. H. Gu, G. W. Zhao, et al., Effects of rare earth ions on activity of RuBP-case in tobacco, Plant Sci. 152, 145–151 (2000).
W. W. Cleland, T. J. Andrews, S. Gutteridge, et al., Mechanism of Rubisco: the carbamate as general base, Chem. Rev. 98, 549–561 (1998).
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Chen, WJ., Tao, Y., Gu, YH. et al. Effect of lanthanide chloride on photosynthesis and dry matter accumulation in tobacco seedlings. Biol Trace Elem Res 79, 169–176 (2001). https://doi.org/10.1385/BTER:79:2:169
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DOI: https://doi.org/10.1385/BTER:79:2:169