alexa Survey of urease activity in ruminal bacteria isolated from domestic and wild ruminants.
Bioinformatics & Systems Biology

Bioinformatics & Systems Biology

Journal of Proteomics & Bioinformatics

Author(s): Laukov A, Koniarov I

Abstract Share this page

Abstract A total of 909 strains, including Selenomonas ruminantium, Lactobacillus sp., Enterococcus sp. and Staphylococcus sp., from the rumen of 104 domestic and wild ruminants was used in tests for urease activity. Tests showed that 56.7\% of S. ruminantium strains and 18.5\% of lactobacilli manifested medium urease activity with mean values of 14.4 +/- 2.5 and 13.85 +/- 0.25 nkat ml-1, respectively. Most of the Enterococcus faecium (62.2\%) and all of the E. faecalis isolates expressed urease activity with mean values of 3.9 +/- 0.05 and 4.1 +/- 0.06 nkat ml-1. E. malodoratus, E. solitarius, E. mundtii, Streptococcus bovis and S. uberis did not produce any urease. All the staphylococci screened were urease-producing strains, mostly with medium or low urease activity. The highest level of urease was measured in the rumen epithelial wall of isolates SE30 (19.7 +/- 2.71 nkat ml-1 of rumen content), SCU32 (29.3 +/- 1.6 nkat ml-1) and also in the rumen content isolates EF35 (19.9 +/- 0.94 nkat ml-1) and S. ruminantium 77 (25.35 nkat ml-1). This survey contributes new data to existing information relating to the ureolytic microbial ecosystem in ruminants.
This article was published in Microbios and referenced in Journal of Proteomics & Bioinformatics

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

  • 9th International Conference on Bioinformatics
    October 23-24, 2017 Paris, France
  • 9th International Conference and Expo on Proteomics
    October 23-25, 2017 Paris, France

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords