in situ without melanocytes

Herwig Baier hbaier at
Thu Jun 3 12:34:46 EST 1999

Hi Petur,
you can suppress melanization in zebrafish embryos for up to a week by bath
application of phenyl thiocarbamide (or phenyl thiourea/PTU; 200uM)
starting on the morning of day 2.

Good luck,

>    I am thinking about doing an in situ on zebrafish emryos but am
>afraid that the melanocytes might interfere with my staining, I have
>heard that there is a method to somehow fix this. Anyone heard of this?
>petur petersen
>email: petur.petersen at

Herwig Baier

University of California, San Francisco
Department of Physiology
Programs in Neuroscience, Genetics, and Human Genetics
513 Parnassus Avenue, Room S-762
San Francisco, CA 94143-0444

Email: hbaier at
Phone: +1(415)502-4301
Fax: +1(415)476-4929

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