Mechanism of rare earth element neodymium (Nd) affecting photosynthesis of oil seed rape (Brassica napus L.)
Concentration of leaf chlorophyll, rate of photosynthesis and Mg<sup>2+</sup>-ATPase activity on chloroplast membrane of oil seed rape (Brassica napus L.) treated with different concentrations of Nd(NO<sub>3</sub>)<sub>3</sub> (3, 6 and 60 μmol·L<sup>-1</...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
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Zhejiang University Press
2000-05-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/1008-9209.2000.03.0271 |
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| Summary: | Concentration of leaf chlorophyll, rate of photosynthesis and Mg<sup>2+</sup>-ATPase activity on chloroplast membrane of oil seed rape (Brassica napus L.) treated with different concentrations of Nd(NO<sub>3</sub>)<sub>3</sub> (3, 6 and 60 μmol·L<sup>-1</sup>) were measured. Ultrastructure of leaf cell was also observed with TEM (transmission electronic microscopy) after Nd(NO<sub>3</sub>)<sub>3</sub> treatment. Photosynthesis was enhanced by low concentration of Nd(NO<sub>3</sub>)<sub>3</sub> of 3 μmol·L<sup>-1</sup>. In contrast, high concentration of Nd(NO<sub>3</sub>)<sub>3</sub> of 60 μmol·L<sup>-1</sup> inhibited photosynthesis. It is concluded that the effect of Nd on chloroplast structure and Mg<sup>2+</sup>-AT-Pase activity on chloroplast membrane result in Nd affecting photosynthesis of oil seed rape. |
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| ISSN: | 1008-9209 2097-5155 |