The investigation of allelopathic effects of catechin from physiological and biochemical aspects

Razavi, Seyed Mehdi The investigation of allelopathic effects of catechin from physiological and biochemical aspects. University of Mohaghegh Ardabili.

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Abstract

Catechin with chemical name of flavane-3 ol is a compound from flavnoid group. It is considerably produced in some plants such as green tea. Some reprorts implied to allelopathic potential of the cmpound. In this investigation, allelopathic response of catechin on lettuce, as a model plant, was evaluated. The results indicated that the compound tend to reduction in lettuce growth parameters such as roots and aerial parts dry - wet weights and lenthghts. On the other hand, after catechin treatment a significant increase was observed in antioxidant enzymes activities. The results indicated that a certain changes was seen in electrophoretic pattern of proteins bands in the lettuce catechin treated plants. Some new protein bands were seen in the treated plants. The HPLC analyses showed that after catechin treatment, a considerable rise in catechin level was obvious in the treated plants. The increase fall to primary level after many days indicated catechin metabolism in the lettuce plants.In conclusion, it was depicted from the results that catechin exhibited an inhibitoty effects on lettuce plants and can be regarded as an allelpathic substance may be used for synthesis a bioherbicide.

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