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- Title
The effects of lead on photosynthetic performance of waxberry seedlings (Myrica rubra).
- Authors
He, B.; Gu, M.; Wang, X.; He, X.
- Abstract
The photosynthesis was investigated 30 d after Pb treatment in Myrica rubra seedlings. The Pb treatment resulted in significantly increased Pb concentrations in shoots. Low Pb concentration exposure (≤2 mM) reduced the net photosynthetic rate (PN), transpiration rate (E), and stomatal conductance (gs) without affecting the intercellular CO2 concentration (Ci), chlorophyll (Chl) content, and Chl fluorescence parameters. At 10 d after severe Pb treatment (≥4 mM), PN was inhibited and accompanied by Chl damage, while at 30 d, the inhibition of PN was followed by an increase of Ci and a decrease of gs, E, Chl content, and Chl fluorescence parameters. M. rubra showed a promising prospect for use in the soil phytoremediation, when Pb concentration is low, but the remediation efficiency of M. rubra is limited if Pb exceeds 2 mM.
- Subjects
PHOTOSYNTHESIS; MYRICA; PHOTOSYNTHETIC rates; CHLOROPHYLL; FLUORESCENCE; PHYTOREMEDIATION
- Publication
Photosynthetica, 2018, Vol 56, Issue 4, p1147
- ISSN
0300-3604
- Publication type
Article
- DOI
10.1007/s11099-018-0800-1