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A Review on Mechanisms of Plant Tolerance and Role of Transgenic Plants in Environmental Clean-up

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Abstract

This article deals with the advances and implication of phytoremediation technologies with emphasis on remediation of toxic heavy metals from contaminated soil. Most of the conventional remedial technologies are expensive and inhibit the soil fertility and cause negative impacts on various ecosystem services. However, phytoremediation is a cost effective and ecofriendly approach, which does not adversely affect soil properties and ecosystem services. In recent years, major progresses have been made in understanding the physiological mechanisms of metal uptake and transport in hyper accumulators. However, the molecular mechanisms of metal uptake, translocation, accumulation and detoxification in plants and their further implication in transgenic development for efficient phytoremediation are not well understood. In view of above, present review article brings together existing bits of information to create a new direction for future research, critical gap in knowledge and a new perspective on remediation of toxic pollutants.

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Acknowledgments

Thanks are due to Director, Institute of Himalayan Bioresource Technology, Palampur for his keen interest in the present work. Dr. R.D. Singh, Head Biodiversity Division, IHBT, Palampur is gratefully acknowledged for his valuable suggestions in the manuscript. The author is grateful to Council of Scientific and Industrial Research (CSIR), New Delhi, India, for providing the necessary fund requirement in our research works. This is IHBT publication number 2088.

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  1. Institute of Himalayan Bioresource Technology, Biotechnology Division, Council of Scientific and Industrial Research, Post Box No. 6, Palampur, 176061, Himachal Pradesh, India

    Chandra Shekhar Seth

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Capsule: ‘ Transgenic plants with desired characters of increased uptake of heavy metals, translocation and detoxification of metals would be an effective approach for environmental clean-up ’

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Seth, C.S. A Review on Mechanisms of Plant Tolerance and Role of Transgenic Plants in Environmental Clean-up. Bot. Rev. 78, 32–62 (2012). https://doi.org/10.1007/s12229-011-9092-x

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