Journal of Earth Science & Climatic Change
Like us on:
Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.
or the degradation of an organophosphorus insecticide, malathion, five plant growth promoting rhizobacteria viz.
meliloti, Azotobacter chroococcum, Azospirillum lipoferum, Pseudomonas fluorescens
were used. These
were isolated from the root nodule of
Trigonella foenum graecum (Rhizobium), sugarcane rhizoplane (Azospirillum)
(Azotobacter chroococcum, Azospirillum lipoferum
The tolerance to the malathion was observed by
measuring the colony diameter of these PGPR on their respective cultivation media. The
showed growth up to
200 μg/ml concentrations. The remaining PGPR i.e.
Azospirillum lipoferum, Pseudomonas fluorescens
showed growth up to 1000 μg/ml. By taking the sub lethal concentration of malathion in the respective
broth cultivation media these PGPR were inoculated and incubated for 10 days at room temperature.
The amount of residual malathion after the treatment of PGPR was measured by GCMS method. The estimation of
residual malathion after 10 days was calculated on the basis of area occupied in the gas chromatogram under GCMS analysis.
The maximum degradation was found in case of
while least degradation was
found in case of
. Other two PGPR were moderate. To identify the degradation whether extracellular
or intracellular the TLC analysis was performed by taking the cell free extract of the malathion degradation assay which showed
that there were no degradation of malathion but after sonication of the bacterial cells, the malathion degradation products were
reported which were analyzed by GCMS
Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals