IJBST 2016 Volume 9 Issue 13
International Journal of BioSciences and Technology (IJBST) ISSN: 0974-3987
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Isolation and characterization of soil bacteria in the vicinity of brick field under air pollution condition and their potential role as plant growth promoter. Ananya RoyChowdhury and Chandan Sengupta. IJBST (2016), 9(13):82-88
Title:
Isolation and characterization of soil bacteria in the vicinity of brick field under air pollution condition and their potential role as plant growth promoter
Authors & Affiliation:
Ananya RoyChowdhury and Chandan Sengupta
Microbiology Research Laboratory, Department of Botany, University of Kalyani, Kalyani – 741 235, West Bengal, INDIA
ananya.chakdaha1@gmail.com, chandansenguptaku@gmail.com
Abstract:
The excessive air pollution has tremendous effect on soil borne microorganisms as well as it affects the soil fertility in greater extent. The continuous exposure of these air pollutants in agricultural crops often lead to reduction of soil fertility and it has a tremendous deleterious effect on annual crop yield also. The industrial development as well as the aerial pollutants are also one of the most responsible cause of decreasing of crop yield. The dense aerial pollutant gases emitted from brick field also has dangerous effect on crop yield. In this article we are going to focus on the potential role of soil bacteria having plant growth promoting activities, isolated from the agricultural land situated in vicinity of brick field .We examined the growth of spinach plant with four isolated soil bacterial strains under exposure of air pollutant gases near the brick field which is situated just beside of 34 no. National high way. In all studied cases, we observed that different growth parameters in the uninoculated spinach (Spinacia oleracea L.) plants (i.e-without soil bacteria) were reduced as compared with treated plants. Air pollutant toxicity were assessed by observing different growth parameters like reduced growth and weak rooting and low chlorophyll content. Inoculation of soil bacteria in spinach plant reduced the deleterious effects of air pollution to some extent and enhanced the different growth parameters as compared with un inoculated aerially polluted plants. Our present study conducted with 4 out of 25 phenotypically and genotypically different bacterial isolates and observed results indicated that SIC 1,SIC 2,SIC3 ,SIC4 (named according to the place and priority of isolate such as, Sample Isolate Chakdaha 1) were very effective to promote plant growth.
Key words: Air pollution stress, soil bacteria, Spinacia oleracea L. , reduced growth, weak rooting.