Vorticella


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Vorticella

(vōr'ti-sel'ă),
A genus of Ciliata of the order Peritrichida, bell-shaped, with a spiral of cilia around the adoral zone; various free-living species have been found at times in the feces, urine, and mucous discharges.
[Mod. L. dim. of L. vortex, a whorl]
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+ + - - Vorticella convallaria-complex + + + - Vorticella campanula + + - - Vorticella (morphospecies 1-4) + + - - Ciliates from Brazilian 4th S freshwater ecosystems Class Karyorelictea 4th S Order Loxodida Loxodes striatus - p Class Heterotrichea Order Heterotrichida Blepahrisma sinuosum - ** Spirostomum minus + a-b Spirostomum teres + p Stentor polymorphus - a-b Stentor roeselii - a-b Class Spirotrichea Sub-class Hypotrichia Aspidisca cicada - a-b Euplotes aediculatus + a Euplotes eurystomus + a Sub-class Stichotrichia Tetmemena pustulata + b Stichotrichia (morphospecies 1-9) - ** Sub-class Oligotrichia Halteria cf.
gillii, de manera general la dieta estuvo constituida por algas (Chlorophyceae, Cyanophyceae, Bacillariophyceae, Euglenoidea y Zygnematophyceae), mientras que el escaso componente animal estuvo presente solo en las tallas ii y iv por protozoos Vorticella sp.
(1999) isolated a Vorticella spasmin cDNA and showed its evolutionary relatedness to another family of small, acidic EF-hand calcium-binding proteins, centrins.
The presence of peritrichous colonial ciliates identified as Epistylis and Vorticella spp., and suctorians identified as Acineta and Tokophrya spp., occurring as ectocommensals or epibionts was confirmed.
The highest ciliate ingestion rates were observed in January 2011, due to the fact that the ciliated population were numerically dominated by the group Spirotrichea (mainly Halteria grandinella), composed of small bacterivorous ciliates (usually <30[micro]m) and by the Peritrichia group (mainly represented by Campanella umbellaria and Vorticella aquadulcis-complex), composed by efficient bacterial filter feeders.
Rotifera and Protozoa species were dominant at the sample sites (Ea and Sa) throughout the study period, mainly due to genera Lecane, Proales, Proalinopsis, Colurella, Diflugia and Vorticella, whereas Rotifera species were most abundant among zooplankton community, with 89% of specimens in the Ea site and 93% of specimens in Sa one (Figure 3).
Difugia acuminata 0.5 0.4 0.7 Difugia corona 0.6 0.8 0.6 Difugia globosa 12.2 2.1 7.7 1.9 36.5 50.1 Vorticella sp.
One other mechanism that might play a part in producing these long-term effects is interspecific competition between bryozoans and stalked protozoans (e.g., Canchesium sp., Zoothanium sp., Vorticella sp.).
AND HAQ, R.U., 2004.Multiple metal resistance in the ciliate protozoan, Vorticella microstoma, isolated from industrial effluents and its potential in bioremediation of toxic wastes.
The six dominant taxa that contributed with 71.2% of the total protozoan density in the reservoir were, respectively, Urotricha globosa, Cothurnia annulata, Pseudodifflugia sp., Halteria grandinella, Ctedoctema acanthocryptum and Vorticella aquadulcis-complex (see Figure 3).
Vorticella convallaria-complex, Vorticella aquadulcis- complex, etc.