文摘
Environment damages by pollutants from various sources have become a very serious predicament posing grave threats to mankind, plant wealth and other life forms. It is a challenging and daunting task to overcome this problem for which various physical, chemical and biological remedies have been followed successfully in some cases. Among the biological sources, research focused on plants has generated promising results for establishing an inexpensive, safe and economically viable technology. Several plants of diverse origin have been exploited rewardingly for converting perilous compounds into harmless and less dangerous products. The present review describes mainly three pollutants from textile dyes, paint preservative and heavy metal contaminants which are having carcinogenic and other life threatening properties. Role of plants has been demonstrated convincingly in several examples for removal of toxic chemicals from the environment. Recently, plant biotechnology has opened up new avenues for phytoremediation research offering numerous advantages for determining precise and accurate process of remediation of pollutants under controlled experimental conditions. This overview is an attempt to present a concise description of research currently underway on phytoremediation.