• Publications
  • Influence
Spatial and Temporal Patterns in the Occurrence of Peritrich Ciliates as Epibionts on Calanoid Copepods in the Chesapeake Bay, USA
  • L. Utz, D. W. Coats
  • Biology, Medicine
    The Journal of eukaryotic microbiology
  • 1 May 2005
TLDR
Epibiont infestation prevalence and load were higher on copepodites than on adults for both host species, suggesting a preferential attachment to juveniles, or a higher predation pressure on adult stages, suggests a more complex dynamics for the system.
Molecular Phylogenetics of Subclass Peritrichia (Ciliophora: Oligohymenophorea) Based on Expanded Analyses of 18S rRNA Sequences
  • L. Utz, E. Eizirik
  • Biology, Medicine
    The Journal of eukaryotic microbiology
  • 1 May 2007
TLDR
The main results are that the monophyly of Peritrichia cannot be rejected; the two main clades of Sessilida do not correspond to formally recognized taxa; and morphological structures commonly used in peritrich taxonomy may be evolutionarily labile.
Telotroch formation, survival, and attachment in the epibiotic peritrich Zoothamnium intermedium (Ciliophora, Oligohymenophorea)
TLDR
Investigation of the life cycle of the peritrich ciliate Zoothamnium intermedium found that colonization success in nature may strongly depend on the ability to find a suitable host in a short period of time, and attachment success decreased with telotroch age.
Identification, life history, and ecology of peritrich ciliates as epibionts on calanoid copepods in the Chesapeake Bay
  • L. Utz
  • Biology
  • 10 February 2004
TLDR
Investigating species composition, spatial and temporal fluctuations, and aspects of the life cycle and attachment preferences of Peritrich epibionts on calanoid copepods in Chesapeake Bay, USA suggests that colonization rates in nature may be strongly dependent on intense production of telotrochs by the epibionic ciliates.
Expanded Phylogenetic Representation of Genera Opercularia and Epistylis Sheds Light on the Evolution and Higher‐Level Taxonomy of Peritrich Ciliates (Ciliophora: Peritrichia)
TLDR
The results support the recognition of two major clades within Peritrichia, and suggest that these two clades should be formally recognized as orders, and propose the names Vorticellida and Operculariida to designate them.
First record of Epistylis plicatilis (Ciliophora: Peritrichia) attached to Pomacea canaliculata (Mollusca: Gastropoda) in Southern Brazil
A more complete morphological characterization of Epistylis plicatilis Ehrenberg, 1831, a colonial peritrich epibiotic on the gastropod Pomacea canaliculata (Lamarck) in two freshwater environments
Microbial diversity from chlorophyll maximum, oxygen minimum and bottom zones in the southwestern Atlantic Ocean
TLDR
Beta diversity analysis of the 16S rRNA gene sequencing data uncovered in this study shows high spatial heterogeneity among water zones communities, which is important contribution for the characterisation of oceanic microbial diversity.
The role of motion in the formation of free-living stages and attachment of the peritrich epibiont Zoothamnium intermedium (Ciliophora, Peritrichia)
TLDR
The results suggest that mechanical, chemical, and maybe electricalcues are involved in the formation of dispersal stages and colonization of substrates by this species ofepibiont.
Growth of the peritrich epibiont Zoothamnium intermedium Precht, 1935 (Ciliophora, Peritrichia) estimated from laboratory experiments.
  • L. Utz
  • Biology, Medicine
    Brazilian journal of biology = Revista brasleira…
  • 1 May 2008
TLDR
Growth, colonization, and proliferation rates of the peritrich epibiont Zoothamnium intermedium Precht, 1935 attached to the calanoid copepod Acartia tonsa Dana 1848 were evaluated in the laboratory in two food regimes: bacteria only, and algal based diet.
Morphological Characterization and Intraspecific Variation of Zoothamnium intermedium Precht, 1935 (Ciliophora, Peritrichia) Attached to Calanoid Copepods in the Chesapeake Bay, USA
ABSTRACT. A redescription of Zoothamnium intermedium Precht, 1935, a peritrich epibiont on copepods, is provided using specimens colonizing Acartia tonsa and Eurytemora affinis in Chesapeake Bay,
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