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Effects of cadmium on growth, photosynthetic rate and chlorophyll content in leaves of soybean seedlings

Biologia Plantarum volume 57, pages 587–590 (2013)Cite this article

Abstract

Cadmium is a widely spread pollutant and the objective of this study was to study the effects of different concentrations of Cd (0, 50, and 100 μM) on the soybean seedlings treated for 10 d. The growth was inhibited and chlorophyll content, net photosynthetic rate, stomatal conductance, intercellular CO2 concentration, probability that a trapped exciton moves an electron into the electron transport chain beyond QA — (ETO/TRO), performance indexes (PIABS), and amount of active reaction centres per excited cross section (RC/CSO) were decreased with the increasing Cd concentration. The leaf reflectance increased in visual range (500–670 nm) and decreased in near-infrared range (750–1 000 nm). The accumulation of Cd in the roots was much higher than that in the stems and leaves.

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Abbreviations

Chl:

chlorophyll

ci :

intercellular CO2 concentration

ETO/TRO :

probability that a trapped exciton moves an electron into the electron transport chain beyond QA −

gs :

stomatal conductance

PFFD:

photosynthetic photon flux density

PIABS :

performance indexes

PN :

net photosynthetic rate

PS :

photosystem

RC/CSO :

amount of active reaction centres per excited cross section

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Authors and Affiliations

  1. State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, 271018, P.R. China

    Z. -C. Xue, H. -Y. Gao & L. -T. Zhang

  2. College of Life Sciences, Shandong Agricultural University, Tai’an, 271018, P.R. China

    Z. -C. Xue, H. -Y. Gao & L. -T. Zhang

  3. Forestry School, Shandong Agricultural University, Tai’an, 271018, P.R. China

    Z. -C. Xue

  4. Luanping County Agricultural and Animal Husbandry Bureau, Chengde, 068250, P.R. China

    Z. -C. Xue

Authors
  1. Z. -C. Xue
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  2. H. -Y. Gao
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  3. L. -T. Zhang
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Correspondence to H. -Y. Gao.

Additional information

Acknowledgements: We are grateful to the State Key Basic Research and Development Plan of China (2009CB118500) and the China National Nature Science Foundation (No. 30671451; No. 30571125) for their financial support of this study.

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Xue, Z.C., Gao, H.Y. & Zhang, L.T. Effects of cadmium on growth, photosynthetic rate and chlorophyll content in leaves of soybean seedlings. Biol Plant 57, 587–590 (2013). https://doi.org/10.1007/s10535-013-0318-0

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  • DOI: https://doi.org/10.1007/s10535-013-0318-0

Additional key words

  • chlorophyll fluorescence
  • Glycine max
  • reflectance
  • stomatal conductance