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An Ecological Approach to Phytoremediation

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Environmental Sustainability and Applications".

Deadline for manuscript submissions: closed (15 September 2023) | Viewed by 2175

Special Issue Editor


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Guest Editor
National Botanical Research Institute India, Lucknow, India
Interests: molecular biology; biotechnology

Special Issue Information

Dear Colleagues,

Globally, cities and lands are experiencing increasing contamination as a result of urbanization and industrialization. Consequently, there are many abandoned lands, biodiversity is drastically reduced, and urban residents are exposed to serious health risks.  Restoring and revitalizing the environment is required to keep an ecosystem intact, or to boost the renewal of impaired environmental mediums; soil, water, and air.  To return any environmental medium to its natural or original state, removing contaminants from the environment is crucial. As a result, the term "environmental restoration" is used. Phytoremediation is the process of reducing toxic or harmful contaminants by letting plants or microbes absorb them in their metabolism. Restoring the ecosystem in a sustainable and natural way improves the fertility of the soil, and the area where the technique is applied is greener and aesthetically pleasing at the same time. In our book, we explore phytoremediation in the context of specific environmental and toxicological concerns. It will cover the following topics:

  • The use of traditional phytoremediation processes to restore the environment;
  • The use of modern technologies (plant genetic engineering, targeted genetic modification technologies, etc.) to restore the environment;
  • Phytoremediation mechanisms (molecular and cellular);
  • Phytotoxicity studies;
  • Phytomonitoring;
  • Nano-phytoremediation;
  • Limitations to phytoremediation;
  • Phytoremediation and future prospects.

I look forward to receiving your contributions.

Prof. Dr. Debasis Chakrabarty
Guest Editor

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Keywords

  • phytoremediation mechanisms
  • phytomonitoring
  • nano-phytoremediation
  • phytotoxicity studies

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Published Papers (1 paper)

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Research

12 pages, 2807 KiB  
Article
Mowing Improves Chromium Phytoremediation in Leersia hexandra Swartz
by Sairu Ma, Xusheng Jiang, Jie Liu, Zhifan Ding, Demin Dai, Shiqi Chen and Guo Yu
Sustainability 2023, 15(7), 6244; https://doi.org/10.3390/su15076244 - 5 Apr 2023
Cited by 5 | Viewed by 1644
Abstract
To improve the efficiency of chromium (Cr) phytoextraction by Leersia hexandra Swartz, the effects of mowing on Cr accumulation in L. hexandra were investigated using hydroponic experiments. Mowing heights (0, 5, and 10 cm), mowing interval (30, 60, 90 and 120 days), and [...] Read more.
To improve the efficiency of chromium (Cr) phytoextraction by Leersia hexandra Swartz, the effects of mowing on Cr accumulation in L. hexandra were investigated using hydroponic experiments. Mowing heights (0, 5, and 10 cm), mowing interval (30, 60, 90 and 120 days), and mowing frequencies (1, 2, and 3 times) were optimized. Mowing at 10 cm above roots significantly increased shoot biomass of L. hexandra (32.9 g/pot). The 90 days mowing interval achieved the highest shoot biomass (62.8 g/pot). The shoot biomass with thrice mowing (67.0 g/pot) was higher than those with one and twice mowing, as well as no mowing (CK). The increases in biomass might ascribe to the changes in endogenous hormone balance by mowing. Proper mowing significantly increased contents of Gibberellin 3 (GA3), 6-Benzylaminopurine (6-BA), 6-Kinetin (6-KT), and trans-Zeatin-riboside (TZR) in leaves, and 3-Indolepropionic acid (IPA) in stems, but decreased Jasmonic acid (JA) in the leaves and stems, thereby enhancing the regeneration of plant. The enhancement of plant regeneration resulted in the increases of biomass and Cr accumulation. Compared to CK, the optimal mowing method (10 cm, 90 days, 3 times) increased shoot biomass and Cr accumulation by 91.4% and 36.0%, respectively. These findings suggested that proper mowing had application potential to promote efficiency of Cr phytoextraction by L. hexandra. Full article
(This article belongs to the Special Issue An Ecological Approach to Phytoremediation)
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