Anatomical Response of Amaranthus hybridus Linn. as Influenced by Pharmaceutical Effluents

  • Clement Oluseye OGUNKUNLE Department of Plant Biology University of Ilorin Ilorin (NG)
  • Abdullahi Alanamu ABDULRAHAMAN Department of Plant Biology, University of Ilorin (NG)
  • Tinuola Abimbola ALUKO Department of Plant Biology, University of Ilorin (NG)
  • Opeyemi Saheed KOLAWOLE Department of Plant Biology, University of Ilorin (NG)
  • Paul Ojo FATOBA Department of Plant Biology, University of Ilorin (NG)
  • Felix Ayotunde OLADELE Department of Plant Biology, University of Ilorin (NG)
Keywords: irrigation; parenchyma cells; pharmaceutical effluent; phloem cells; vegetables; vessel walls

Abstract

Anatomical studies were carried out on the leaves, stems and roots of Amaranthus hybridus subjected to irrigation of 10%, 20%, 30% and 40% concentrations of pharmaceutical effluents to identify the responses of this plant to the treatment. Leaf structures of A. hybridus showed no significant change due to the effect of the effluents. Significant reduction was observed in the trichome density and number of epidermal cells at the adaxial surface as from the 20% effluent concentration upward (p<0.05). Stomatal size significantly reduced on both leaf surfaces as from 20% effluent concentration upward while stomatal density increased significantly at the adaxial surface from the 20% effluent concentration (p<0.05). Tetracytic and anisocytic stomatal complex-types were observed in A. hybridus with varied modifications from 20% effluent concentration upward at both leaf surfaces. Vessels and phloem cells in the stems and roots of A. hybridus were seriously affected by the effluent. Vessel walls were thickened and their width reduced significantly as from 20% effluent concentration upward while phloem cells experienced progressive loss of structural integrity from the same concentration (20%) upward in both the stems and roots. This study showed that the pharmaceutical effluents have toxic effect on A. hybridus and the effects were more pronounced as from 20% concentration.

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Published
2013-11-30
How to Cite
OGUNKUNLE, C. O., ABDULRAHAMAN, A. A., ALUKO, T. A., KOLAWOLE, O. S., FATOBA, P. O., & OLADELE, F. A. (2013). Anatomical Response of Amaranthus hybridus Linn. as Influenced by Pharmaceutical Effluents. Notulae Scientia Biologicae, 5(4), 431-437. https://doi.org/10.15835/nsb549117
Section
Research articles
CITATION
DOI: 10.15835/nsb549117