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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2016.5(4): 652-658
DOI: http://dx.doi.org/10.20546/ijcmas.2016.504.074


Screening and Characterization of Heavy Metal Resistant Fungi for its Prospects in Bioremediation of Contaminated Soil
H.Desai1*, D. Patel1 and B. Joshi2
1C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University,Bardoli, Surat (Dist) Gujarat, India
2Department of Food Quality Assurance, College of Food Processing and Bioenergy,Anand Agriculture University, Anand, Gujarat, India
*Corresponding author
Abstract:

Developing new bioremediation processes for soils and effluents polluted by heavy metals is one the serious concern. For the same, extensive screening for the fungal resistance to heavy metals such as lead, nickel, cobalt, chromium, copper, manganese and zinc was attempted. During this SG1 isolate was obtained having maximum threshold level of tolerance to manganese (60 mg/ml), copper (5 mg/ml), cobalt (5 mg/ml), lead (4.5 mg/ml), nickel (6 mg/ml), chromium (3.9 mg/ml) and GK1 isolate was obtained having maximum threshold level of tolerance to zinc (80 mg/ml). Maximum growth of the isolate SG1 at threshold concentrations of metals was found to be at pH 5 and temperature 30oC in presence of manganese, pH 5 and 32oC with copper, pH 5 and 30oC with cobalt, pH 5 and 31oC with lead, pH 5 and 30oC with nickel, pH 5 and 29oC with chromium while isolate GK1 showed at pH 4 and 30oC with zinc. Besides metal tolerance further antibiotic resistance pattern of these isolates were also studied. The results revealed that antibiotic resistance and metal resistance were highly coupled. GK1 was found to have multiple antibiotic resistances. UV mutagenesis has been found to be productive in terms of the increase in resistance against the metal ions. A mutant of GK1 was found to show improved resistance against Zn up to 82 mg/ml. Based on the morphological characterization, it was found that the isolates SG1 and GK1 were of Neurospora sp. and Penicillium sp. respectively.


Keywords: Bioremediation, Heavy Metal Resistance, Antibiotics,UV mutagenesis,  Neurospora sp. and Penicillium sp..
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How to cite this article:

Desai, H., D. Patel and Joshi, B. 2016. Screening and Characterization of Heavy Metal Resistant Fungi for its Prospects in Bioremediation of Contaminated Soil.Int.J.Curr.Microbiol.App.Sci. 5(4): 652-658. doi: http://dx.doi.org/10.20546/ijcmas.2016.504.074