A PCR technique based on the Hip1 interspersed repetitive sequence distinguishes cyanobacterial species and strains

Article Abstract:

Primers based on the Hip1 sequence have been used as a typing technique for cyanobacteria. PCR-based methods for typing have been developed over the years. An octameric palindromic sequence Hip1 is present in the chromosomal DNA of many cyanobacteria. PCR primers were used to extend the Hip1 sequence and five produced different products when used to prime PCR from cyanobacterial genomic DNA. RFLP and Hip1 typing produced similar results and each technique could distinguish different strains.

author: Smith, R.J., Day, J.D., Smith, J.K., Parry, J.D.
Cyanobacteria

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA

Repression and inactivation of alpha-amylase in Thermomonospora species during growth on cellobiose

Article Abstract:

Thermomonospora species were grown on a mixture of cellulose and starch in mineral salts minimal medium to understand thermophilic actinomycetes' inducer control over biosynthesis of unusual alpha-amylase. Results show that cellulose or cellobiose blocks induction of alpha-amylase via inducer exclusion and initiates inactivation of the amylase via proteolysis. It was also found that the rapid decrease of alpha amylase activity is not influenced by thermal instability of the enzyme.

author: Busch, J.E., Stutzenberger, F.J.
Proteases, Proteolysis, Amylases

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA

Tracking adhesion factors in Staphylococcus caprae strains responsible for human bone infections following implantation of orthopaedic material

Article Abstract:

Research was conducted to examine the 10 Staphylococcus caprae strains isolated from four patients that were suffering from joint and bone infections following the implantation of orthopaedic material. The objective was to characterize the strains as well as four unrelated S. caprae strains isolated from the milk of mastitis-free goats. Results reveal atlE and ica genes in goat and human strains of S. caprae.

author: Allignet, Jeanine, Galdbart, Jacques-Olivier, Morvan, Anne, Dyke, Keith G.H., Vaudaux, Pierre, Aubert, Sylvie, Desplaces, Nicole, Solh, Nevine El
Infection, Bones, Surgical wound infections, Staphylococcus, Orthopedic implants

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


subjects list: Research
This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.