ID Help Please

gjones · Post by **gjones** » Fri Jul 22, 2011 7:50 am

This one seems to have characteristics of Pediastrum and Eudorina.

Franz Neidl · Post by **Franz Neidl** » Sat Jul 23, 2011 3:21 am

Could it be Pandorina or Eudorina with a fungal parasite?

Franz

gjones · Post by **gjones** » Mon Jul 25, 2011 6:45 am

It could be some sort of parasite but I have never seen it before!

Ecki · Post by **Ecki** » Sat Jul 30, 2011 4:24 pm

This is indeed a fungal parasite infecting a green algae. 2009 I found Gonium pectorale being infected:

Unfortunately I had a technical problem with my equipment back then and the pictures are pretty bad.

The swarmer looks like a short pin with a large pinhead. When they start to feed it looks like your photo. When they are finished the entire algae has the grey color.

Regards
Ecki

gjones · Post by **gjones** » Sat Jul 30, 2011 8:53 pm

Thanks so much for your insight and photos.

uaalgae · Post by **uaalgae** » Sun Jan 08, 2012 10:19 am

This is parasite in the the group of fungi known as chytrids - maybe the genus Rhizophidium.[/u]