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Water, Air, and Soil Pollution

, Volume 27, Issue 1–2, pp 15–18 | Cite as

Heavy metal pollutant tolerance of Azolla Pinnata

  • Amar Sarkar
  • Sasadhar Jana
Article

Abstract

The effects of Hg, As, Pb, Cu, Cd, and Cr (1, 2, and 5 mg L−1 each) on Azolla pinnata R. Br. were analyzed. The treatments (2 and 5 mg L−1) of the heavy metal pollutants decreased Hill activity, chlorophyll, protein and dry wt, and increased tissue permeability over control values. The effects were most pronounced with the treatment of 5 mg L−1. The harmful effects of the metals were, in general, found by the treatments in the order: Cd 〉 Hg 〉 Cu 〉 As 〉 Pb 〉 Cr. There was no significant change in these parameters at 1 mg L−1 of the metals over control. Thus Azolla pinnata shows tolerance to the heavy metals tested up to 1 mg L−1 each.

Keywords

Permeability Heavy Metal Chlorophyll Harmful Effect Metal Pollutant 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • Amar Sarkar
    • 1
  • Sasadhar Jana
    • 1
  1. 1.Botany DepartmentBurdwan University, BurdwanWest BengalIndia

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