PJB-2018-659
THE ROLE OF MICROBIOTA AND MACROFLORA IN REMEDIATION OF POLLUTANTS: A REVIEW
Shehrose Anum
Abstract
The increase in modern trend of industrial establishment and anthropogenic activities contribute addition of heavy metals to the environment that effect soil structure. At optimum concentration heavy metals play important role in cell that are required for growth and development of plant but exceeding that limit heavy metal are toxic to all life forms. The elevated level of heavy metal disturbs the ecosystem of soil microbiota. Plants growing in such type of environment respond to elevated level of heavy metal by activating their defense system and store metal in their vacuoles. There are numerous environmental factors in rhizosphere that limits metal bioavailability in soil. At acidic pH metals and nutrients are readily available in soluble form for plant uptake. Phytoremediation is emerging and environment friendly technique for removal of pollutants from environment. Plant interaction with microbe plays an essential role in plant growth, metabolism and in heavy metal uptake. The role of chelating agents is to break soil metal complex and bind metal with itself for plant uptake. This review focuses the role of microbes and chelating agents that play an effective role in nutrient availability and phytoremediation of plant.
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