Use of Natural Antimicrobial Peptides and Bacterial Biopolymers for Cultured Pearl Production

Use of Natural Antimicrobial Peptides and Bacterial Biopolymers for Cultured Pearl Production

Cultured pearls are the product of grafting and rearing of Pinctada margaritifera pearl oysters in their natural environment. Nucleus rejections and oyster mortality appear to result from bacterial infections or from an inappropriate grafting practice. To reduce the impact of bacterial infections, synthetic antibiotics have been applied during the grafting practice. However, the use of such ant...

The Natural Antimicrobial Chromogranins/Secretogranins-Derived Peptides – Production, Lytic Activity and Processing by Bacterial Proteases

Antimicrobial peptides targeting bacterial ribosome

Antibiotics kill bacteria by inhibiting vital enzymes involved in cellular metabolism, including protein production. However, extensive and sometimes gratuitous usage of antibiotics has led to microbial resistance, which is constantly emerging against every antibiotic class, raising serious public health concerns and the urgency for the development of new antibacterial therapeutics. Different s...

New developments in cultured pearl production: use of organic and baroque shell nuclei

Cultured pearls can be produced both with and without a nucleus. Marine pearl oysters that produce Akoya, South Sea and Tahitian cultured pearls typically use nuclei for their pearl products. The nucleus material used for these beaded cultured pearls is traditionally from freshwater Mississippi mussels. In recent years, there have been a number of attempts to use alternative pearl and shell mat...

‏‎faciliting lexical access for the fluent production of speech‎‏

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis,a one-way anova experimental design was carried out. 24 sednior students of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inter...