Effects of juglone on growth of cucumber seedlings with respect to physiological and anatomical parameters |
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Authors: | Irfan Terzi Ismail Kocaçalişkan Osman Benlioğlu Kemal Solak |
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Affiliation: | (1) Department of Biology, Faculty of Arts and Sciences, Dumlupınar University, Kütahya, Turkey;(2) Department of Biology, Faculty of Education, Gazi University, Ankara, Turkey |
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Abstract: | Effects of juglone on seedling growth of cucumber (Cucumis sativus cv. Beith Alpha) with respect to physiological and anatomical parameters were investigated. Growth parameters (seedling elongation, fresh and dry weights) were reduced by 1 mM juglone. Juglone also decreased chlorophyll a and b contents and reduced some anatomical tissues (xylem vessel and bundle radius of stem, stomata length and stomata number of the cotyledons). The anatomical changes in stem and cotyledon of the seedlings were related to growth inhibiting effect of juglone. On the other hand, increase in catecholase and tyrosinase activities by the effect of juglone were also recorded. |
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Keywords: | Anatomy catecholase chlorophyll content cucumber juglone seedling growth tyrosinase |
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