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Pseudomonas aeruginosa SN4 enhances Seedling Growth of Oryza sativa in Cadmium Contaminated Soil

Soumitra Nath1*, Bibhas Deb2, Indu Sharma3and Piyush Pandey3*

1Bioinformatics Centre, Gurucharan College, Silchar, 788004 India

2Department of Botany, Gurucharan College, Silchar, 788004 India

3Department of Microbiology, Assam University, Silchar, 788011 India

DOI:http://dx.doi.org/10.12944/CWE.9.2.32

Pseudomonasspp.were isolated from different locations of Ponta Sahib, Himachal Pradesh, India and were characterized on the basis of morphological, biochemical and 16S rRNA gene sequencing analysis. Minimal inhibitory concentrations of Cd2+for allPseudomonasisolates were detected andP. aeruginosaSN4 exhibited highest cadmium tolerance upto 1800μg/ml. Most of the isolated strains showed multi-metal and multi antibiotic tolerance. In pot experimental studies, application ofP. aeruginosaSN4 showed a remarkable increase in shoot length when sown in Cd incorporated soil (at 50 mg/kg). After 20 days of seedling inoculation in Cd incorporated soil and application ofP. aeruginosaSN4, it has been observed that rice plant attains 12% increased seedling growth and germination as compared to uninoculated control pots. Overall study demonstrated thatP. aeruginosaSN4 could increase the growth ofOryza sativain cadmium incorporated soil, thus dedicating the sites which are set aside for long term agricultural purpose.

Minimum Inhibitory Concentration; Cadmium; Tolerance; Oryza Sativa; Pseudomonas AeruginosaSN4

Copy the following to cite this article:

Nath S, Deb B, Sharma I, Pandey P. Pseudomonas aeruginosa SN4 enhances Seedling Growth of Oryza sativa in Cadmium Contaminated Soil. Curr World Environ 2014;9 (2) DOI:http://dx.doi.org/10.12944/CWE.9.2.32

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Nath S, Deb B, Sharma I, Pandey P. Pseudomonas aeruginosa SN4 enhances Seedling Growth of Oryza sativa in Cadmium Contaminated Soil. Curr World Environ 2014;9(2). Available from://www.a-i-l-s-a.com/?p=6367

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