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      Phylogenetic Analysis of Polygalacturonase-Producing Bacillus and Pseudomonas Isolated From Plant Waste Material

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          Abstract

          Background:

          Keeping in mind the commercial application of polygalacturonase (PG) in juice and beverages industry, bacterial strains were isolated from rotten fruits and vegetables to screen for competent producers of PG.

          Objectives:

          In this study, the plate method was used for preliminary screening of polygalacturonase-producing bacteria, while the Dinitrosalicylic Acid (DNS) method was used for quantifications of PG.

          Materials and Methods:

          Biochemically-identified polygalacturonase-producing Bacillus and Pseudomonas species were further characterized by molecular markers. The genetic diversity among these selected strains was analyzed by investigating microsatellite distribution in their genome. Out of 110 strains, 17 competent strains of Bacillus and eight strains of Pseudomonas were selected, identified and confirmed biochemically. Selected strains were characterized by 16S rRNA sequencing and data was submitted to the national center for biotechnology information (NCBI) website for accession numbers.

          Results:

          Among the Bacillus, Bacillus vallismortis (JQ990307) isolated from mango was the most competent producer of PG; producing up to 4.4 U/µL. Amongst Pseudomonas, Pseudomonas aeruginosa (JQ990314) isolated from oranges was the most competent PG producer equivalent to B. vallismortis (JQ990307). To determine genetic diversity of different strains of Pseudomonas and Bacillus varying in PG production, fingerprinting was done on the basis of Simple Sequence Repeats (SSR) or microsatellites. The data was analyzed and a phylogenetic tree was constructed using the Minitab 3 software for comparison of bacterial isolates producing different concentrations of PG. Fingerprinting showed that presence or absence of certain microsatellites correlated with the ability of PG production.

          Conclusions:

          Bacteria from biological waste were competent producers of PG and must be used on an industrial scale to cope with the demand of PG in the food industry.

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          Most cited references16

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          Interlaboratory testing of methods for assay of xylanase activity

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            Microbial pectinolytic enzymes: A review

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              Pectin lyase: A review

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                Author and article information

                Journal
                Jundishapur J Microbiol
                Jundishapur J Microbiol
                10.5812/jjm
                Kowsar
                Jundishapur Journal of Microbiology
                Kowsar
                2008-3645
                2008-4161
                02 January 2016
                January 2016
                : 9
                : 1
                : e28594
                Affiliations
                [1 ]Department of Microbiology and Molecular Genetics, University of the Punjab, Lahore, Pakistan
                Author notes
                [* ]Corresponding author: Muhammad Sohail, Department of Microbiology and Molecular Genetics, University of the Punjab, Lahore- 54590, Pakistan. Tel: +92-3335535984, Fax: +92-42 35952855, E-mail: drsohailmmg@ 123456gmail.com
                Article
                10.5812/jjm.28594
                4834142
                27099686
                60b9294b-7442-4cf0-82c9-caf1d716472c
                Copyright © 2016, Ahvaz Jundishapur University of Medical Sciences.

                This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License ( http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

                History
                : 10 March 2015
                : 19 June 2015
                : 20 August 2015
                Categories
                Research Article

                polygalacturonase,phylogenetic dna,dinitrosalicylic acid (dns) method,bacillus spp.,pseudomonas spp.

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