Isolation and Characterization of Halophilic Bacteria from Sundarban Soil

Abstract

ABSTRACT-Halophiles, the most predominant organisms found in the mangrove forest, include varied genera of halophilic bacteria in different environment such as salt lakes, saline soils and salted food. The majority of halophilic microorganisms studied so far produce compounds with great potential in industrial process and they have physiological properties which facilitate its use with commercial aims. In this study of Sunderban soil, focus has been made on the isolation of halophilic organisms and their characterisation. Soils were collected from four different places of Sunderban and were used for physiochemical and microbiological analysis. Qualitative screenings of the isolates were done and three among them was selected having moderately good growth which was further optimised in different growth media. Characterisation of the isolates were done and based on 16S rRNA gene sequencing phylogenetic tree were constructed. The isolates showed multiple heavy metal tolerance and antibiotic resistance. The organisms were further tested for EPS as well as various extracellular enzyme productions thereby exploring their usage for various biotechnological purposes.

Conversion of Mangroves Into Rice Cultivation Alters Functional Soil Microbial Community in Sub-Humid Tropical Paddy Soil

“…MS harbored higher CFU of actinomycetes, oligotrophs, sulfuroxidizing bacteria, and nitrifiers which showed a positive response to available phosphorus (AP), urease, and soil pH. Alkaline pH and higher AP in MS primarily favored the growth of these microbes (Bandyopadhyay and Sarkar, 1987;Das et al, 2011;Halder et al, 2015). The present study also showed the higher CFU of phosphate-solubilizing bacteria in MB compared to MS and NRRI.…”

Microbial Prevalence in Soil Water in the River Deltas of the World

“…The maximal humid situation of upstream in comparison to the downstream provides variations in the fungi pollens that also changes the physio-chemical soil texture for a long time period [90][91][92][93][94][95][96][97][98][99][100][101][102][103][104][105][106]. Sundarban river delta is also an example of this largest deltoid soil microbial activity [104,[107][108][109][110][111][112][113][114][115][116][117][118][119][120][121].…”