An antibiotic, heavy metal resistant and halotolerant Bacillus cereus SIU1 and its thermoalkaline protease.

Microbial Cell Factories
Sanjay K SinghSatyendra K Garg

Abstract

Many workers have reported halotolerant bacteria from saline conditions capable of protease production. However, antibiotic resistance and heavy metal tolerance pattern of such organisms is not documented very well. Similarly, only a few researchers have reported the pattern of pH change of fermentation medium during the course of protease production. In this study, we have isolated a halotolerant Bacillus cereus SIU1 strain from a non-saline environment and studied its antibiotic and heavy metal resistance pattern. The isolate produces a thermoalkaline protease and changes the medium pH during the course of fermentation. Thermostability of protease was also studied for 30 min. Seventy bacterial strains isolated from the soils of Eastern Uttar Pradesh, India were screened for protease production. All of them exhibited protease activity. However, 40% bacterial isolates were found good protease producers as observed by caseinolytic zones on milk agar plates. Among them, culture S-4 was adjudged as the best protease producer, and was identified as Bacillus cereus by morphological, biochemical and 16 S rDNA sequence analyses. The isolate was resistant to heavy metals (As2+, Pb2+, Cs1+) and antibiotics (penicillin, lincomycin, cloxa...Continue Reading

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Citations

Oct 12, 2013·Applied Biochemistry and Biotechnology·Chittoor Jabeena Thaz, Gurunathan Jayaraman
May 3, 2014·Environmental Science and Pollution Research International·Saurabh GuptaNagaraja Tejo Prakash
Feb 9, 2016·Environmental Science & Technology·Synthia MaesTom Hennebel
Oct 25, 2013·Preparative Biochemistry & Biotechnology·Muthusamy GovarthananByung-Taek Oh
Feb 15, 2015·Applied and Environmental Microbiology·Kyle C PeetJanelle R Thompson
Sep 11, 2012·Journal of Basic Microbiology·Deepali BishtNandan Singh Darmwal
Feb 26, 2019·Microbiology Resource Announcements·Olubukola Oluranti BabalolaAyansina Segun Ayangbenro
Jun 14, 2020·International Microbiology : the Official Journal of the Spanish Society for Microbiology·Samaneh AbdollahiFatemeh Shahryari
Jul 5, 2017·World Journal of Microbiology & Biotechnology·Viridiana Rodríguez-SánchezLuz Elena Vidales-Rodríguez
Jun 1, 2017·Journal, Genetic Engineering & Biotechnology·Kanupriya Miglani SharmaAshwani Kumar
Dec 20, 2013·Environmental Science & Technology·Baharak HosseinkhaniNico Boon

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Methods Mentioned

BETA
PCR

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Excel

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