, Volume 56, Issue 4, pp 1147–1153 | Cite as

The effects of lead on photosynthetic performance of waxberry seedlings (Myrica rubra)

  • B. He
  • M. Gu
  • X. Wang
  • X. He
Original paper


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.

Additional key words

chlorophyll fluorescence lead stress photosynthesis 



activated oxygen species


intercellular CO2 concentration




transpiration rate


minimal fluorescence of the dark-adapted state


effective quantum yield of PSII photochemistry


maximal quantum yield of PSII photochemistry


stomatal conductance


net photosynthetic rate


nonphotochemical quenching coefficient


photochemical quenching coefficient


water-use efficiency


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Copyright information

© The Institute of Experimental Botany 2018

Authors and Affiliations

  1. 1.Guangxi Key Laboratory of Agri-environment and Agri-products Safety, College of AgricultureGuangxi UniversityNanning, GuangxiChina
  2. 2.College of AgricultureGuangxi UniversityNanning, GuangxiChina

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