Home|Journals|Articles by Year|Audio Abstracts
 

Original Research

Egypt. J. Exp. Biol. (Bot.). 2010; 6(2): 195-200


TAXONOMICAL AND MOLECULAR CHARACTERIZATION OF SOME BACTERIAL ISOLATES OF FAMILY ACETOBACTERACEAE

Hala M. Abushady Hayam Abd-elnabi Sayed.




Abstract

Acetic Acid Bacteria (AAB) are Gram-negative bacteria, live under strict need of oxygen. They are characterized by their ability to undergo incomplete alcohol and sugar oxidations to produce organic acids as end products. They are ubiquitous in niches with high sugar concentrations and most of them have potent capabilities to oxidize ethanol to acetic acid. These criteria make AAB very good candidates to be exploited in different industrial applications. AAB taxonomy subjected to many changes making it very attractive for further investigations. Our work aims to identify some isolates belonging to family Acetobacteraceae using 16sr-DNA molecular typing technique. After isolation, 48 isolates were identified as members of Acetobacteraceae. Four out of them identified as Gluconoacetobacter sacchari, Acetobacter pasteurianus, Gluconobacter fraturii and Acetobacter malorum by 16sr-DNA molecular typing technique. Neighbor-joining phylogenetic tree based on 16s-rDNA sequences analysis for the four identified isolates was created showing the relationship among these isolates and representative species of the genera Acetobacter, Gluconoacetobacter and Gluconobacter.

Key words: Acetobacter, Gluconobacter, Gluconoacetobacter, Sequencing, 16sr-DNA.






Full-text options


Share this Article


Online Article Submission
• ejmanager.com




ejPort - eJManager.com
Refer & Earn
JournalList
About BiblioMed
License Information
Terms & Conditions
Privacy Policy
Contact Us

The articles in Bibliomed are open access articles licensed under Creative Commons Attribution 4.0 International License (CC BY), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.