Heavy Metal Toxicity and their Remediation by Soil Microbes: Effect of heavy metals and their detoxification by plant growth promoting rhizobacteria

Heavy Metal Toxicity and their Remediation by Soil Microbes: Effect of heavy metals and their detoxification by plant growth promoting rhizobacteria


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von Parvaze Ahmad Wani, Mohd. Saghir Khan

Beschreibung

Among various contaminants, heavy metals, discharged from metal processing industries are known to have adverse effects on microbial diversity, soil fertility and yields of various crops. The excessive accumulation of these heavy metals can modify essential protein structure or replace an essential element causing chlorosis, growth impairment, browning of roots, and inactivation of photosystems. Also the ingestion of contaminated food or drinking water can expose humans and animals to toxic levels of the heavy metals. Recently, the use of biological materials for effective remediation of heavy metals, often termed bioremediation, from metal contaminated sites has emerged as a potential alternative to conventional treatment techniques. Bioremediation is a process that uses microorganisms or their enzymes to detoxify these contaminants and keep the environment free from these contaminants. Microorganisms and plants are usually used for the removal of these heavy metals. Several microbes such as Bacillus sp., Pseudomonas sp., Acinetiobacter sp. and Arthobacter sp. are reported to detoxify heavy metals.


Tags: Biologie, Mikrobiologie


Taschenbuch - 9783845404479
Verlag: LAP Lambert Acad. Publ.
Ersterscheinung: August 2011
ISBN-13: 9783845404479
Größe: 220 mm x 150 mm x 20 mm
Gewicht: 511 Gramm
332 Seiten
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