Journal ArticleDOI
Phytoremediation: A Novel Strategy for the Removal of Toxic Metals from the Environment Using Plants
David E. Salt,Michael J. Blaylock,Nanda P. B. A. Kumar,Viatcheslav. Dushenkov,Burt D. Ensley,Ilan Chet,Ilya Raskin +6 more
TLDR
Biological mechanisms of toxic metal uptake, translocation and resistance as well as strategies for improving phytoremediation are also discussed.Abstract:
Toxic metal pollution of waters and soils is a major environmental problem, and most conventional remediation approaches do not provide acceptable solutions. The use of specially selected and engineered metal-accumulating plants for environmental clean-up is an emerging technology called phytoremediation. Three subsets of this technology are applicable to toxic metal remediation: (1) Phytoextraction--the use of metal-accumulating plants to remove toxic metals from soil; (2) Rhizofiltration--the use of plant roots to remove toxic metals from polluted waters; and (3) Phytostabilization--the use of plants to eliminate the bioavailability of toxic metals in soils. Biological mechanisms of toxic metal uptake, translocation and resistance as well as strategies for improving phytoremediation are also discussed.read more
Citations
More filters
Journal ArticleDOI
Reactive Oxygen Species, Oxidative Damage, and Antioxidative Defense Mechanism in Plants under Stressful Conditions
TL;DR: The generation, sites of production and role of ROS as messenger molecules as well as inducers of oxidative damage are described and the antioxidative defense mechanisms operating in the cells for scavenging of ROS overproduced under various stressful conditions of the environment are described.
Journal ArticleDOI
Heavy metals, occurrence and toxicity for plants: a review
TL;DR: In this article, the range of heavy metals, their occurrence and toxicity for plants, and their effects on the ecosystem is discussed, where the authors focus mainly on zinc, cadmium, copper, mercury, chromium, lead, arsenic, cobalt, nickel, manganese and iron.
Journal ArticleDOI
Response to cadmium in higher plants
TL;DR: It is proposed that, above all in response to acute cadmium stress, various mechanisms might operate both in an additive and in a potentiating way, and a holistic and integrated approach seems to be necessary in the study of the response of higher plants to Cadmium.
Journal ArticleDOI
Plant Growth-Promoting Bacteria: Mechanisms and Applications
TL;DR: It is envisioned that in the not too distant future, plant growth-promoting bacteria (PGPB) will begin to replace the use of chemicals in agriculture, horticulture, silviculture, and environmental cleanup strategies.
Journal ArticleDOI
Plant responses to abiotic stresses: heavy metal‐induced oxidative stress and protection by mycorrhization
TL;DR: The present results indicate that mycorrhization stimulated the phenolic defence system in the Paxillus-Pinus mycorRhizal symbiosis and Plants in certain mycor rhizal associations are less sensitive to cadmium stress than non-mycorrhizal plants.
References
More filters
Book
The Mineral Nutrition of Higher Plants
M. H. Martin,H. Marschner +1 more
TL;DR: This chapter discusses the relationship between Mineral Nutrition and Plant Diseases and Pests, and the Soil-Root Interface (Rhizosphere) in Relation to Mineral Nutrition.
Book
Mineral Nutrition of Higher Plants
TL;DR: In this article, the authors discuss the relationship between mineral nutrition and plant diseases and pests, and diagnose deficiency and toxicity of mineral nutrients in leaves and other aerial parts of a plant.
Terrestrial higher plants which hyperaccumulate metallic elements. a review of their distribution, ecology and phytochemistry
TL;DR: Phytochemical studies suggest that hyperaccumulation is closely linked to the mechanism of metal tolerance involved in the successful colonization of metalliferous and otherwise phytotoxic soils.
Journal ArticleDOI
Phytoextraction: The Use of Plants To Remove Heavy Metals from Soils
TL;DR: The high metal accumulation by some cultivars of B. juncea suggests that these plants may be used to clean up toxic metal-contaminated sites in a process termed phytoextraction.
Journal ArticleDOI
Global inventory of natural and anthropogenic emissions of trace metals to the atmosphere.
TL;DR: The worldwide inventories of the natural and anthropogenic sources and emissions of airborne cadmium, copper, lead, nickel and zinc are presented here.