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IJSTR >> Volume 3- Issue 12, December 2014 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Effects of Particulate Matter on the Anatomy of some Tropical Plants (Alchonea cordifolia, Musa paradisiaca, and Manihot esculenta)

[Full Text]



Ajuru, Mercy Gospel, Friday, Upadhi



Key words: Anatomy, Ashpalt plant, Particulate matter, vascular bundles, plant, environment trichomes



Abstract: The problem of impact of particulate matter on vegetation is quite complex. Relatively little attention is given to the effect of particulate matter on different tropical plants, compared to the effect on tropical animals. A comparative study aimed at showing the effect of asphalt particulate matter on the anatomical characteristics of some tropical plants was carried out. Samples from three plant species namely: Manihot esculentus Crantz (Cassava), family Euphorbiaceae; Musa paradisiaca L. (Plantain), family Musaceae; and Alchornea cordifolia (Schum. & Thonn.) Mull. Arg. (Christmas bush), family Euphorbiaceae, were collected from two sites designated as non-polluted site (Site 1), and asphalt polluted site (Site 2). Plant materials were fixed in FAA (Formalin: Acetic acid: alcohol) solution immediately after collection. For anatomical studies, free hand sectioning method was used, and photomicrographs of good sections taken with a Leitz Diaplan photomicroscope fitted with Leica WILD MPS 52 camera. The results showed that there was significant increase in the number of vascular bundles from plant samples collected at the polluted site. Possibly, this may be one of the adaptive features by these plants to reduce damage caused by asphalt particulate matter. However, the cortex, the epidermis, and pith tissues were unaffected and seem to be resistant to asphalt particulate matter. From the present study, it is apparent that the vascular bundles are more affected compared to other tissue systems. In other words, they are more sensitive to pollutants than other tissues. The different tissues of the same plant species differ in their responses to the same pollutant. This is a clear indication that particulate matter exercised a decisive influence on the different anatomical plant features



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