The group of scientist and environmentalist are developing wastewater treatment system, where the wastewater are allowed to mix with the roots of the plant and the roots will work on the wastewater and infiltration will take place to recharge the aquifer. We need resources materials on studies. A studies on antimicrobial activity of plumbago zeylanica was completed for water and wastewater treatment , where the root part of the plants are more active than the rest parts. The roots part did more well to kill pathogenic microorganisms especially E-coli check this weblink: http://aasrc.org/aasrj/index.php/aasrj/article/view/1612