I found this ciliate and I would like to know the ID.
Rogelio
ID??? (Prorodon)
Moderators: rjlittlefield, ChrisR, Chris S., Pau
-
- Posts: 2979
- Joined: Fri Nov 20, 2009 11:24 am
- Location: Panama
ID??? (Prorodon)
Last edited by RogelioMoreno on Mon May 28, 2012 3:16 pm, edited 1 time in total.
-
- Posts: 827
- Joined: Thu Jun 23, 2011 4:49 pm
- Location: Wakefield, Quebec / Ottawa, Ontario
- Contact:
-
- Posts: 2979
- Joined: Fri Nov 20, 2009 11:24 am
- Location: Panama
Marek, thank you for your comments.
Bruce, thank you very much for enlighten me to Prorodon. I did a search of Prorodon and I found that it could be Holophrya based on the info by Bernhard here.
Rogelio
Bruce, thank you very much for enlighten me to Prorodon. I did a search of Prorodon and I found that it could be Holophrya based on the info by Bernhard here.
Rogelio
-
- Posts: 827
- Joined: Thu Jun 23, 2011 4:49 pm
- Location: Wakefield, Quebec / Ottawa, Ontario
- Contact:
Aha. Bernhard is citing Foissner's "User-friendly guide" (a great resource by a giant in the field). I was puzzled by Foissner's use of the macronucleus to differentiate Holophrya from Prorodon, since most sources (micro*scope, NIES, etc.) list many Prorodon species with oval macronuclei.
Here, for instance is Prorodon, as it appears in DJ Patterson's book (and reproduced in EOL):
The reason seems to be that Foissner himself has revised the genus Prorodon, incorporating many members of the genus into Holophrya. I don't have access to Foissner's 1994 Ciliate Atlas, but here's Denis Lynn on the subject:
Here, for instance is Prorodon, as it appears in DJ Patterson's book (and reproduced in EOL):
The reason seems to be that Foissner himself has revised the genus Prorodon, incorporating many members of the genus into Holophrya. I don't have access to Foissner's 1994 Ciliate Atlas, but here's Denis Lynn on the subject:
So, the systematics of the prostomes are in flux, and sources that keep these oval-nucleated guys in the genus Prorodon are either being cautious, or are simply "behind the times." And I have some more reading to do.Foissner, Berger, and Kohmann (1994)
discovered that for years ciliates assigned to the
genus Prorodon ought properly to have been
assigned to the genus Holophrya based on the
features of its type species, Holophrya ovum
Ehrenberg, 1831, which exhibits brosse kineties .
Furthermore, they concluded that Prorodon ought
to include only species with a slit-like oral region
and a brosse that extends the length of the body
(Foissner et al., 1994), based on its type species,
Prorodon niveus Ehrenberg, 1833. Foissner et al.
(1994) established a new genus Apsiktrata based
on Urotricha gracilis , a Urotricha species without
a brosse , and a new family Apsiktratidae , to
include those prostomes without a brosse . We have
assumed throughout this chapter that ciliates identified
as Prorodon , Pseudoprorodon , and Holophrya
prior to Foissner et al. actually ought to have been
identified as Holophrya , Prorodon , and Apsiktrata ,
respectively. Throughout the chapter, we have used
the new names but followed these in parentheses
by the genus name used in the literature cited.
Last edited by Bruce Taylor on Tue Jun 19, 2012 6:17 am, edited 1 time in total.
- arturoag75
- Posts: 1600
- Joined: Fri Feb 05, 2010 1:05 am
- Location: italy
- Contact:
-
- Posts: 827
- Joined: Thu Jun 23, 2011 4:49 pm
- Location: Wakefield, Quebec / Ottawa, Ontario
- Contact:
-
- Posts: 2979
- Joined: Fri Nov 20, 2009 11:24 am
- Location: Panama