The use of multivariate analysis for the design of selective isolation conditions for mutants of Streptomyces cattleya with improved antibiotic titre

Autor: Adekunle O. Onadipe, Michael E. Bushell
Rok vydání: 2007
Předmět:
Zdroj: Journal of Chemical Technology & Biotechnology. 39:237-249
ISSN: 1097-4660
0268-2575
DOI: 10.1002/jctb.280390405
Popis: Twenty-three tests which did not include antibiotic production were carried out on ultraviolet-induced mutants of Streptomyces cattleya NRRL 8057. Principal component analysis of the results indicated the taxometric relationships between members of a population consisting of 77 isolates. Highlitre antibiotic producers were then marked on the population distribution diagram and clusters containing high-titre antibiotic producers noted. Discriminant analysis for the high-titre clusters provided a discriminant function which was derived from data from seven of the tests. These were used to formulate a positive selection procedure which was successful in selecting for a population of mutants which contained a significantly higher number of high-titre isolates than a control population.
Databáze: OpenAIRE