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Re: glugea? TB

>This a.m. I found one of my adult Heterandria formosa dead, with a small
>hole in her body wall.  She had seemed maybe a bit too "plump" in recent
>days, but she gave birth to a healthy youngster last night.  I was
>unable to xamine her innards w/ anything but the naked eye, and though I
>saw no granulomas of cysts, my eyes are only 1X ;-)
>Could this be the dreaded Glugea anomala, of does it sound like TB? Are
>Rivulus that suceptible to Glugea?  How about Jordanella?
>Any info would be appreciated.
>
>P.S. The original source guy I obtained the formosas from keeps
>sticklebacks...Am I just being paranoid?  All his fish seemed quite
>healthy.
>
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Glugea anomala infection does not usually produce an actual hole in the
body wall. Macroscopically visible lesions usually consist of white lumps,
which can be in various parts of the body. The so-called xenomas in the
intestinal tissue are usually visible to the naked eye as small white
granules. If you didn't see those you probably don't have Glugea, but I
can't be certain of that. Sticklebacks are the natural host for Glugea
anomala, but the identification of the organism affecting various killie
species as G. anomala is based on morphologic similarity of the organism
and is not absolutely certain. If the sticklebacks have no xenomas, it
would be difficult to implicate them. I have not seen this disease in
Rivulus or Jordanella personally, but I would assume that they might be
susceptible. I have seen the infection in Nothos, Cynolebias, and
Fundulopanchax.

Barry

__________________________________________________________________
Barry Cooper, Chair			email:  bjc3 at cornell_edu
Department of Biomedical Sciences		Voice:  (607)253-3336
Section of Pathology			FAX:    (607)253-3317
College of Veterinary Medicine
Cornell University
Ithaca, NY 14853
__________________________________________________________________
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