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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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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.2018.7(8): 3583-3591
DOI: https://doi.org/10.20546/ijcmas.2018.708.362


Resistance of Potential Plant Growth Promoting Rhizobacteria to Heavy Metals (Ni, Cd, Co, Pb) Isolated from Polluted Areas of Hyderabad
M. Nissi Paul1*, Sodimalla Triveni1, P.C. Latha2, M. Chandini Patnaik3 and A. Manohar Rao4
1Department of Agriculture Microbiology & Bioenergy
4Department of Horticulture, College of Agriculture, PJTSAU, Hyderabad, India
2Deparment of Microbiology, ICAR- Indian Institute of Rice Research, Hyderabad, India
3AICRP on Micronutrients, Agriculture Research Institute, Hyderabad, India
*Corresponding author
Abstract:

The toxicity and bioaccumulation tendency of heavy metals in the environment is a serious threat to the health of living organisms. Unlike organic contaminants, heavy metals cannot be broken down by chemical or biological processes. Hence, they can only be transformed into less toxic species. The present study was conducted to isolate promising heavy metal tolerant bacteria from various industrial polluted areas of Hyderabad, India and was tested for their plant growth promoting characteristics. Eleven strains isolated were identified as Bacillus (6) and Rhizobium (5) species and were tested for their maximum tolerance to heavy metals (Ni, Cd, Co, Pb) by supplementing its respective salts in different concentrations (0, 25, 50, 100, 150 and 200 mg/l) to Nutrient agar and Yeast extract mannitol agar. Among all strains AfSB-1, SfSB-5, AfSR-1 andSfSR-4 were able to tolerate upto 100 mg/l concentration. All the isolates were also screened for various biochemical traits like, Mineral solubilisation (P, K, Zn), HCN production, IAA production, Siderophore production, EPS production ACC deaminase activity. The best strains with both metal tolerance and multifunctional traits will enrich the studies on genetic diversity and could be exploited for bioremediation of heavy metal polluted environment.


Keywords: PGPR activity, Bacillus, Rhizobium, Minimal inhibitory concentration, Heavy metal tolerance
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How to cite this article:

Nissi Paul, M., Sodimalla Triveni, P.C. Latha, M. Chandini Patnaik and Manohar Rao, A. 2018. Resistance of Potential Plant Growth Promoting Rhizobacteria to Heavy Metals (Ni, Cd, Co, Pb) Isolated from Polluted Areas of Hyderabad.Int.J.Curr.Microbiol.App.Sci. 7(8): 3583-3591. doi: https://doi.org/10.20546/ijcmas.2018.708.362