PROTECTION OF PHOTOSYNTHETIC PIGMENTS FROM THE INFLUENCE OF COPPER IONS USING THE EXTRACTS FOLIA SALVIA OFFICINALIS AND RADIX GLYCYRRHIZAE
Abstract
The comparative investigations of photosynthetic pigments state in leaves of 7-days wheat seedlings (Triticum aestivum L.) subjected during 24, 48 and 72 hours to toxic action of Cu2+ ions (10-3M) were conducted. The results obtained in all medium pH and time exposition chlorophyll b (Chl b) has been shown to be more stable to action of copper ions. The extracts obtained from roots of liquorice (Radix glycyrrhizae) and leaves of sage (Folia Salvia officinalis) were used for estimation their the protective ability under stress. The action of sage extract under pH 4,5 after 24 hours has shown to increased a chlorophyll content on 51% and under pH 6,8 on 35% relatively to stress. After 48 hours of exposition under pH 4,5 the action of sage extract may be picked out. The content of chlorophyll b was increased on 75%, chlorophyll a (Chl a) on 70%. The extracts of sage and liquorice have restored of both pigments absorbtion capacities. The extracts effect after 72 hour exposition was unsignificant.
The assumption can be proposed that investigated extracts have an antioxidant capacities and are able to suppress of reactive oxygen species (ROS), formed under action of heavy metals.
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