PJB-2020-188
THE EFFECT STUDY OF CONGO RED AND BRILLIANT GREEN DYES ON ANATOMICAL CHARACTERISTICS OF LEMNA MINOR L.
Sadiq Kadhum alzurfi
Abstract
Aim of the study to test the effect of Congo red and Brilliant green dyes on anatomical Characteristics of Lemna minor L. plant. Collect of the plant from Euphrates River and acclimation in the laboratory during 15-day, cultured in the plastic basin at three frequencies and exposed to different concentrations of Congo red and Brilliant green dyes (10^-5, 4×10^-5, 7×10^-5) ppm. Measurement anatomical variations during (1,7,14,21) days. Anatomical analyses of Lemna minor plant revealed several changes in the Leaves of plants submitted to contaminated treatments. Exposure to dyes texture leads to a reduction in the size of blade thickness, number of conducting elements, the reduced cell size of the epidermis and aerenchyma tissue. Stems undergo changes in size, shape and arrangement of cortical parenchyma cells, plants of the treatment with more contamination had widened cell spaces in the cortex of parenchyma cells, reduced in vascular bundles.
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