Effect of triclosan on germination and seedling growth of mustard seeds

Rakesh Kumar Bhardwaja, Vibha Bhardwaj

Abstract


Triclosan (TCS) is a widely used antimicrobial agent found in consumer products and is released to the environment at sub-ppb concentrations following incomplete removal by wastewater treatment plant (WWTP) processing. TCS released to the environment is acutely and chronically toxic to aquatic organisms. The study is aimed to determine the effects of domestic waste waters on seed germination and seedling growth of some selected plants under laboratory conditions. The effect of effluent was compared to that of control (distilled water). The results revealed that the two types of polluted water significantly affect germination, root & shoot elongation and highly affected in domestic waste water and Triclosan containing waste water. As WWTPs discharge into aquatic habitats and as constructed wetlands are of increasing interest for polishing wastewater for reuse purposes, understanding the effect of TCS on wetland plants is necessary to understand impacts on wetland functions and services. We have studied the effect of TCS on germination of four types of mustard seed germination Physical parameters: Length & weight of Root and Shoot of the germinated seed. Moreover the Protein, Chlorophyll, Potassium, Magnesium and Calcium have also been quantitatively measured in the root and shoot of the germinated seeds. The greening of the coleoptile was delayed with the increase in the effluent concentration. Percentage of germination, viability, number of roots, shoot and root length, fresh weight, and dry weight of the rice seedlings showed an inverse relationship with the effluent concentration.


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