N.B. You realize, of course, that the relationship between dye
production and the actual number of surviving bugs would depend on quite
a few environmental factors ? Bacteria shut down metabolic mathways 'at
will' and you would have to prove first that dye production and
bacterial counts are in direct correlation. I am certain that thre are
bugs that have all the desired properties, but these bugs my be
inaccessible or reqire quaint growth mediums or be pathogenic, etc.
Thus, direct count of surviving cells (roughly approximated by
colony-count) is still the most accurate method.
>> Cyanobacteria: Anabaena, Nostoc, Plectonema, Phormidium, even
> They grow slow, but if die fast, bright-blue to deep blue phycocyanine
> looks just great. It is water soluble
>> Ethidium wrote:
> > Hi
> > I'm after finding any common strains of bacteria that may produce visible
> > water soluble pigments for a research project on bacterial growth/survival .
> > I'm after using the pigment production as an indicator of growth/survival.
> > So far the only bacteria I have found is pseudomonas aeruginosa ... are
> > there any others that are common?
|Dr. Artem Evdokimov Protein Engineering |
| NCI-Frederick Tel. (301)846-5401 |
| FAX (301)846-7148 |
|eudokima at mail.ncifcrf.gov |