DNase + or - ?

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tjb
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DNase + or - ?

Post by tjb » Wed Dec 10, 2008 4:39 am

Of these four bacteria are any positive for for DNase? I've searched and searched and cannot find (reliable) information on this. I do not have access to Bergey's manual. Pseudomonas aeruginosa, Pseudomonas fluorescens, Proteus mirabilis, and Citrobacter freundii. I've found conflicting information on the internet and thought I would give this a shot. Any help is greatly appreciated.

beautifulmind420
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Post by beautifulmind420 » Thu Dec 11, 2008 5:42 pm

Pseudomonas aeruginosa - negative
Reference:
http://www.pubmedcentral.nih.gov/articl ... tid=535267

Pseudomonas fluorescens - negative
Reference
http://aem.asm.org/cgi/reprint/18/3/355.pdf (check Table 1)

Proteus mirabilis - may be positive

Citrobacter freundii - may be negative
Reference
http://jcm.asm.org/cgi/reprint/4/5/453.pdf

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Sepals
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Re: DNase + or - ?

Post by Sepals » Fri Jan 09, 2009 4:55 pm

Have you even checked the gram stain?! If you did, I may be able to tell you off the top of my head. How can you be working on identification and not have a manual? It doesn't have to be the one you mentioned, other people have published manuals too. Try a library.
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