Protozoa Guide review

Pseudomicrothorax

genus / MICROTHORACIDA / PSEUDOMICROTHORACIDAE Jankowski, edaphic, few

Description

With characters of the family (Fig . 24). 1. Right ora ·····:::::::.·.... of radia .· .·· Notoxoma .. ··:....··· : . ..... kinetoso : .... 1'. Right ora 2. Stomatog left ora many mon 2'. Stomatoge oral pol typicall ··.. ....... 3. Micronu A space o after protargol staining. B. lnfraciliature after silver nitrate staining. (from Dragesco and Dragesco- 4. Left oral Kerneis , 1986) along le oral cav 4'. Oral poly ........ 5. Oral regio and seria closed ci aerial, ......... OLPODEA Small and Lynn, 1981 tic kineties of dikinetids with a h kinetosome ; somatic dikinetids sverse microtubular ribbon and at tciliary microtubule associated with kinetosome and one transverse e postciliary ribbon, and one fibril associated with the posterior osterior transverse ribbons of extend posteriorly and overlap one sting cysts common ; freshwater and marine; six orders . r ( 1993) has provided the most and detailed accounts of the f this class . We have relied heavily e for the keys below. Many figures sner (1993) , who copied these from ces that he cited . b 9 <9 t;? l kinetids at least including a series lly oriented kinetosomal rows (except in which these are reduced to one me) ... .. ..... ........ ....... .... Bryophryida l structures not as above .. ..... .... .. .. .. 2 enesis merotelokinetal (Fig . 1) ; l polykinetid composed of several to okinetidal rows ... ........ ... Colpodida nesis pleurotelokinetal (Fig. 2); left ykinetids of variable shape and y multiple ... ...... ........ ... ... ..... ......... ... . 3 cleus enclosed within perinuclear f macronucleus ... .. Cyrtolophosidida leus and macronucleus separated ... . 4 polykinetids long and many, extending ft side of expansive, deep anterior ity ..... Bursariomorphida kinetids and oral cavity not as above . .. ....... .. .. .. ... ...... .... ....... ... ........... .... .......... 5 n at anterior pole of cell with paroral l oral polykinetids forming almost a rcle around cytostome; forming spore-bearing sorocarps .................. ... ... .. ......... .. ...... Sorogenida CILIOP 5' . Oral region subapical to equatorial with paroral of dikinetids or multiple kinetosomes on right to right posterior region of the oral cavity .............. .. .. .......... ...... .. .. ..... . Bryometopida . ........ • • • • • •• . .. . ... : : •• : : :· :);>t~> • 0 • •, ·. : . . . }/!~;; / : - . . . ·. . - ·. : ....... ~ 0 • / )1\~.·: ~~< / - ·.·.·.·. .··:::·._ .:.·.·,·.·_.•::·.•i:·;.:,'·t.,·.,·.-~:. ~._: ·~.: .~,-~ ..-.: .;::_·:·:·;·.:..·.:._:·.:·:··.: .. of members of the Order Col pod ida. The ciliate forms a reproductive cyst , dedifferentiates the parental oral structures, despiralizes the somatic kineties , divides, and differentiates new oral structures at the anterior ends of the oral kineties . Somatic kinetid single dots represent dikinetids . (from Foissner, 1993) of the Class Colpodea. The opisthe oral structures differentiate from several right lateral parental somatic kineties with the paroral "anterior" to the differentiating oral polykinetids. Rotation of the field by goo brings the new oral structures into the appropriate orientation. Somatic kinetid single dots represent dikinetids. (from Foissner, 1993) HORA, COLPODEA 555

Type species

Figures

Figure 24
Fig. 24
Pseudomicrothorax dubius. A. lnfraciliature 3' . Micronuc
Figure 77
Fig. 77
Oxytricha lanceolata . A. Ventral surface ; B. posteri
Figure 77
Fig. 77
) and Pseudomicrothorax (Fig .78). Fig

Raw text

With characters of the family (Fig . 24).
1. Right ora
·····:::::::.·.... of radia
.· .··
Notoxoma
.. ··:....···
: . ..... kinetoso
: .... 1'. Right ora
2. Stomatog
left ora
many mon
2'. Stomatoge
oral pol
typicall
··..
....... 3. Micronu
A space o
after protargol staining. B. lnfraciliature after silver
nitrate staining. (from Dragesco and Dragesco- 4. Left oral
Kerneis , 1986) along le
oral cav
4'. Oral poly
........
5. Oral regio
and seria
closed ci
aerial,
.........
OLPODEA Small and Lynn, 1981
tic kineties of dikinetids with a
h kinetosome ; somatic dikinetids
sverse microtubular ribbon and at
tciliary microtubule associated with
kinetosome and one transverse
e postciliary ribbon, and one
fibril associated with the posterior
osterior transverse ribbons of
extend posteriorly and overlap one
sting cysts common ; freshwater and
marine; six orders .
r ( 1993) has provided the most
and detailed accounts of the
f this class . We have relied heavily
e for the keys below. Many figures
sner (1993) , who copied these from
ces that he cited .
b
9 <9 t;?
l kinetids at least including a series
lly oriented kinetosomal rows (except
in which these are reduced to one
me) ... .. ..... ........ ....... .... Bryophryida
l structures not as above .. ..... .... .. .. .. 2
enesis merotelokinetal (Fig . 1) ;
l polykinetid composed of several to
okinetidal rows ... ........ ... Colpodida
nesis pleurotelokinetal (Fig. 2); left
ykinetids of variable shape and
y multiple ... ...... ........ ... ... ..... ......... ... . 3
cleus enclosed within perinuclear
f macronucleus ... .. Cyrtolophosidida
leus and macronucleus separated ... . 4
polykinetids long and many, extending
ft side of expansive, deep anterior
ity ..... Bursariomorphida
kinetids and oral cavity not as above .
.. ....... .. .. .. ... ...... .... ....... ... ........... .... .......... 5
n at anterior pole of cell with paroral
l oral polykinetids forming almost a
rcle around cytostome; forming
spore-bearing sorocarps
.................. ... ... .. ......... .. ...... Sorogenida
CILIOP
5' . Oral region subapical to equatorial with
paroral of dikinetids or multiple kinetosomes on
right to right posterior region of the oral
cavity .............. .. .. .......... ...... .. .. ..... . Bryometopida
. ........
• • • • • •• . .. . ... : : •• : : :·
:);>t~>
• 0 •
•, ·. : . . .
}/!~;; / : -
. . . ·. .
-
·. : .......
~ 0 •
/ )1\~.·: ~~< / - ·.·.·.·. .··:::·._ .:.·.·,·.·_.•::·.•i:·;.:,'·t.,·.,·.-~:. ~._: ·~.:
.~,-~ ..-.:
.;::_·:·:·;·.:..·.:._:·.:·:··.:
..
of members of the Order Col pod ida. The ciliate forms
a reproductive cyst , dedifferentiates the parental
oral structures, despiralizes the somatic kineties ,
divides, and differentiates new oral structures at the
anterior ends of the oral kineties . Somatic kinetid
single dots represent dikinetids . (from Foissner,
1993)
of the Class Colpodea. The opisthe oral structures
differentiate from several right lateral parental
somatic kineties with the paroral "anterior" to the
differentiating oral polykinetids. Rotation of the field
by goo brings the new oral structures into the
appropriate orientation. Somatic kinetid single dots
represent dikinetids. (from Foissner, 1993)
HORA, COLPODEA 555