AI Article Synopsis
- Unusually high numbers of pigmentless variants and sectored colonies were observed in cultures of frozen Serratia marcescens.
- Clonal analysis indicated that the unstable sectored colonies can continue to sector again when plated.
- Further studies revealed that the lack of pigment affects oxygen uptake, pigment formation, and production of an inducible protease.
Article Abstract
Unusually high numbers of pigmentless variants and sectored colonies in cultures of lyophylized Serratia marcescens are reported. Clonal analyses of sectored colonies show the presence of unstable bacteria that continue to sector again when plated. Further analysis of pigmentless variants suggest that pigment formation, oxygen uptake, and the production of an inducible protease are affected.
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Source |
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC378064 | PMC |
| http://dx.doi.org/10.1128/am.18.4.689-691.1969 | DOI Listing |
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