African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

The combined effects of cadmium and salinity on some pigments and total phenolic compounds of Myriophyllum heterophyllum Michx. and Potamogeton crispus L.

  Aysel SIVACI1* and Emire ELMAS2  
  1Department of Biology, Faculty of Art and Science, Adıyaman University, Adıyaman, Turkey.  2Department of Biology, Faculty of Art and Science, Sinop University, Sinop, Turkey. 
Email: [email protected]

  •  Accepted: 05 June 2012
  •  Published: 10 July 2012

Abstract

 

In this study, the combined effects of different salinity and cadmium concentrations (0, 0.05‰ NaCl + 4 
mg L-1  Cd, 0.05‰ NaCl + 64 mg L-1  Cd, 5‰ NaCl + 4 mg L-1 Cd, 5‰ NaCl + 64 mg L-1 Cd) on some 
pigments (chlorophyll a, chlorophyll b, carotenoids and anthocyanins) and total phenolic compounds 
were investigated in two aquatic plants (Myriophyllum heterophyllum Michx. and Potamogeton crispus 
L.) at 24 and 96 h. Chlorophyll a, chlorophyll b and carotenoids decreased depending on Cd + NaCl 
concentrations and the time (24 h and 96 h) in both species (P<0.05). The anthocyanin concentrations 
showed differences in combined Cd and NaCl concentrations in both species at 24 and 96 h. In the two 
time periods (24 and 96 h), the levels of phenolic compounds at all concentrations of Cd + NaCl 
increased in both M. heterophyllum and P. crispus (P<0.05).  
 
Key words: Aquatic plants, cadmium, sodium chloride (NaCl), phenolic compounds, photosynthetic pigments.