African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12236

Full Length Research Paper

Effect of cadmium on the morphology and anatomy of Salvinia auriculata

Rodrigues, D. A.
  • Rodrigues, D. A.
  • University of Rio Verde-Farm Sources of Knowledge, PO Box 104 CEP: 75901-970, Rio Verde, GO-Brazil.
  • Google Scholar
Vasconcelos Filho, S. C.
  • Vasconcelos Filho, S. C.
  • Federal Institute of Education and Technology Goiás, Rio Verde Campus. South highway Goiana Km 01, Zona Rural, Rio Verde - GO - CEP 75901-970. PO Box 66, Brazil.
  • Google Scholar
Rodrigues, A. A.
  • Rodrigues, A. A.
  • Federal Institute of Education and Technology Goiás, Rio Verde Campus. South highway Goiana Km 01, Zona Rural, Rio Verde - GO - CEP 75901-970. PO Box 66, Brazil.
  • Google Scholar
Rampazzo, D. F.
  • Rampazzo, D. F.
  • Federal Institute of Education and Technology Goiás, Rio Verde Campus. South highway Goiana Km 01, Zona Rural, Rio Verde - GO - CEP 75901-970. PO Box 66, Brazil.
  • Google Scholar
Rodrigues, C. L.
  • Rodrigues, C. L.
  • Federal Institute of Education and Technology Goiás, Rio Verde Campus. South highway Goiana Km 01, Zona Rural, Rio Verde - GO - CEP 75901-970. PO Box 66, Brazil.
  • Google Scholar
Vasconcelos, J. M.
  • Vasconcelos, J. M.
  • University of Brasilia, Campus Darcy Ribeiro, S / N - North Wing, CEP 70910-900, Brasília-Brazil.
  • Google Scholar
Magalhães, P. A. N. R.
  • Magalhães, P. A. N. R.
  • University of Rio Verde-Farm Sources of Knowledge, PO Box 104 CEP: 75901-970, Rio Verde, GO-Brazil.
  • Google Scholar


  •  Received: 24 November 2015
  •  Accepted: 28 April 2016
  •  Published: 25 May 2016

Abstract

This study aimed to evaluate the morphological and anatomical changes of Salvinia auriculata exposed to different concentrations 0, 2.5, 5, 7.5 and 10 µM of cadmium (Cd)  and its effect on plant growth. The experiment was conducted in the laboratory of Plant Anatomy of the IF Goiano/Rio Verde Campus, Goiás. Cd free samples of S. auriculata, was obtained from the Aquários Plantados company, located in Belo Horizonte. The material was grown hydroponically for 20 days and after the experimental period, the leaf samples were fixed, including in historesin, cut to 5 μm thick thick, stained with toluidine blue and the images were obtained in an optical microscope. The toxic effects of Cd on S. auriculata was observed at lowest concentration with the appearance of chlorotic and necrotic spots. Microscopic analysis showed increased height and width of the aerenchyma gaps, mesophyll and a reduction in abaxial surface epidermal cells, due to increased doses of this metal. It was observed that S. auriculata is a plant sensitive to Cd, and thus indicated for environmental monitoring.

 

Key words: Ecological, aquatic species, pollution.