Bradyrhizobium japonicum

Mike O'Hara mjohara at pacbell.net
Sat Nov 29 19:15:25 EST 1997


icurkovic at HWCN.ORG wrote:
> 
> Hello,
> 
> I've never tried a newgroup before so this is all kind of new to me.
> 
> Anyway, I was wondering if there is anyone who could help me out. I'm a
> 3rd year university student taking a intro microbiology course. I just
> finished a lab where we have to identify an unknown bacteria.
> 
> I have narrowed it down to 2 choices: Bradyrhizobium japonicum and
> Serratia marcescens. I am pretty sure it is the latter, but I want to know
> if someone could answer a question for me: Are most colonies of B.
> japonicum red or white?
> 
> I am also in some dire need of some biochemical test results for this
> species...indole test, urea, lead acetate, Vogues Proskauer & methyl red
> test. Bergey's Manual of Bacteriology has been pretty useless for this
> species.
> 
> I would appreciate any kind of help. Thanks!
> 
> Ivan
  An unusual but very appropriate differentiation would be to find out
if the organism causes nodules to form on soyabeans.....

Mike



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