Environmental impact on morphological and anatomical structure of Tansy
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Morphological and anatomical structure of Tansy (Tanacetum vulgare L.) from two specific locations in one town, depending on environmental conditions, were carried out: anthropogenic Ada Huja (polluted zone) and non anthropogenic Topcider park (unpolluted). Study included the diferences in the structure of leaves, stem and roots. The plants from both cites showed visible morphological and anatomical changes in leaves. However, some reduction in these features were observed in leaves, which were collected from the anthropogenic Ada Huja site. Significant reduction in thickness of Tansy leaves from Ada Huja was recorded. Also, thickness reduction of leaf mesophyll, palisade parenchyma and upper and lower epidermis in plants from anthropogenic Ada Huja site was noticed. Similarly, reduction in the anatomical structures of leaves from polluted areas was also observed. Chlorophyll content in leaves from polluted and non poluted Topcider park, which is control site in this case, was measured too. Due to unfavourable environmental conditions, leaves of Ada Huja plants had lower chlorophyll a and b content. All recorded diferences in morfological and anatomical structure and chlorophyll content of the Tansy were caused by differences of cumulative environmental conditions with dominant efects of the contamination degree of the location, soil type and microclimate.
Извор:African Journal of Biotechnology, 2010, 9, 16, 49-2421