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MICROSCOPIC CHARACTERIZATION AND TOXICOLOGICAL ASSESSMENT OF IRIS GERMANICA L. CULTIVATED UNDER HYDROPONIC AND GEOPONIC CONDITIONS

PATRICIU CONSTANTIN POPOVICI, VIOREL ROBERT ANCUCEANU *, MIHAELA DINU

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Iris germanica L. has a long tradition of medicinal use. The present paper reports on its microscopic characterization and on the phytotoxicity of the extracts obtained from plants cultivated in geoponic and hydroponic environments. The above and belowground plant parts were used to prepare methanolic and aqueous extracts whose acute toxicity was evaluated on monocot and dicot seedlings as on brine shrimp nauplii. On Triticum seedlings, the extracts showed phytotoxic effects only at high concentrations (5% and 1%). Similar findings were obtained on Lactuca seedlings. On Artemia nauplii all the tested solutions had LC50 values higher than 500 mg/L, a finding indicating low toxicity, results consistent with those seen in phytotoxicity assessments. The results for the plants cultivated in different media were very similar.