Log in

Relevant bibliographies by topics / Ciliats / Journal articles

To see the other types of publications on this topic, follow the link: Ciliats.

Journal articles on the topic 'Ciliats'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Ciliats.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

IGLESIAS, R., A. PARAMÁ, M. F. ÁLVAREZ, J. LEIRO, F. M. UBEIRA, and M. L. SANMARTÍN. "Philasterides dicentrarchi (Ciliophora: Scuticociliatida) expresses surface immobilization antigens that probably induce protective immune responses in turbot." Parasitology 126, no. 2 (2003): 125–34. http://dx.doi.org/10.1017/s0031182002002688.

Full text

Abstract:

Philasterides dicentrarchi is a histophagous ciliate causing systemic scuticociliatosis in cultured turbot. This study demonstrates that turbot which survive this disease have serum antibodies that recognize ciliary antigens of this ciliate in ELISA and immobilize/agglutinate the ciliate in vitro. Mouse sera raised against ciliary antigens and integral membrane proteins are likewise capable of immobilizing/agglutinating the ciliates, indicating that P. dicentrarchi, like other ciliates, expresses surface immobilization antigens. Furthermore, the antigen agglutinating reaction induces the paras

APA, Harvard, Vancouver, ISO, and other styles

2

Ohmura, Takuya, Yukinori Nishigami, Atsushi Taniguchi, et al. "Simple mechanosense and response of cilia motion reveal the intrinsic habits of ciliates." Proceedings of the National Academy of Sciences 115, no. 13 (2018): 3231–36. http://dx.doi.org/10.1073/pnas.1718294115.

Full text

Abstract:

An important habit of ciliates, namely, their behavioral preference for walls, is revealed through experiments and hydrodynamic simulations. A simple mechanical response of individual ciliary beating (i.e., the beating is stalled by the cilium contacting a wall) can solely determine the sliding motion of the ciliate along the wall and result in a wall-preferring behavior. Considering ciliate ethology, this mechanosensing system is likely an advantage in the single cell’s ability to locate nutrition. In other words, ciliates can skillfully use both the sliding motion to feed on a surface and th

APA, Harvard, Vancouver, ISO, and other styles

3

Ishikawa, Takuji, Tomoyuki Tanaka, Yohsuke Imai, Toshihiro Omori, and Daiki Matsunaga. "Deformation of a micro-torque swimmer." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2185 (2016): 20150604. http://dx.doi.org/10.1098/rspa.2015.0604.

Full text

Abstract:

The membrane tension of some kinds of ciliates has been suggested to regulate upward and downward swimming velocities under gravity. Despite its biological importance, deformation and membrane tension of a ciliate have not been clarified fully. In this study, we numerically investigated the deformation of a ciliate swimming freely in a fluid otherwise at rest. The cell body was modelled as a capsule with a hyperelastic membrane enclosing a Newtonian fluid. Thrust forces due to the ciliary beat were modelled as torques distributed above the cell body. The effects of membrane elasticity, the asp

APA, Harvard, Vancouver, ISO, and other styles

4

Wan, Kirsty Y., Sylvia K. Hürlimann, Aidan M. Fenix, et al. "Reorganization of complex ciliary flows around regenerating Stentor coeruleus." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1792 (2019): 20190167. http://dx.doi.org/10.1098/rstb.2019.0167.

Full text

Abstract:

The phenomenon of ciliary coordination has garnered increasing attention in recent decades and multiple theories have been proposed to explain its occurrence in different biological systems. While hydrodynamic interactions are thought to dictate the large-scale coordinated activity of epithelial cilia for fluid transport, it is rather basal coupling that accounts for synchronous swimming gaits in model microeukaryotes such as Chlamydomonas. Unicellular ciliates present a fascinating yet understudied context in which coordination is found to persist in ciliary arrays positioned across millimetr

APA, Harvard, Vancouver, ISO, and other styles

5

ELLOUMI, J., Z. DRIRA, A. HAMZA, and H. AYADI. "Space-time variation of ciliates related to environmental factors in 15 nearshore stations of the Gulf of Gabes." Mediterranean Marine Science 16, no. 1 (2014): 162. http://dx.doi.org/10.12681/mms.792.

Full text

Abstract:

Diversity and structure of ciliate communities in the Gulf of Gabes (Tunisia) were investigated based on a survey of 15 nearshore stations along 237 Km, by monthly sampling over a 1-year. Ciliated protozoa were identiﬁed to genus and/or species level and enumerated. Statistic tools were used to explain the ciliates assemblage. High ciliates species richness from 133 taxa was recorded, including new records of 76 species. This study showed a longitudinal distribution of ciliate communities, which are organized in northern stations (from Tabia to Harbor of Gabes) and southern stations (from Zarr

APA, Harvard, Vancouver, ISO, and other styles

6

Decamp, O., A. Warren, and R. Sanchez. "The Role of Ciliated Protozoa in Subsurface Flow Wetlands and their Potential as Bioindicators." Water Science and Technology 40, no. 3 (1999): 91–98. http://dx.doi.org/10.2166/wst.1999.0143.

Full text

Abstract:

The role of ciliated protozoa in the root zone method of wastewater treatment was assessed by analyzing ciliate community structure in four experimental subsurface flow wetlands (planted or unplanted in either soil or gravel) and estimating Escherichia coli removal due to ciliate predation. A total of 22 different ciliate taxa were isolated from the four reed beds. The first third of each bed contained a higher abundance and diversity than the final third of the bed. There was a qualitative correlation between physicochemical conditions and ciliate community structure: microaerophilic species

APA, Harvard, Vancouver, ISO, and other styles

7

Mutazono, Masatoshi, Tomoko Noto, and Kazufumi Mochizuki. "Diversification of small RNA amplification mechanisms for targeting transposon-related sequences in ciliates." Proceedings of the National Academy of Sciences 116, no. 29 (2019): 14639–44. http://dx.doi.org/10.1073/pnas.1903491116.

Full text

Abstract:

The silencing of repetitive transposable elements (TEs) is ensured by signal amplification of the initial small RNA trigger, which occurs at distinct steps of TE silencing in different eukaryotes. How such a variety of secondary small RNA biogenesis mechanisms has evolved has not been thoroughly elucidated. Ciliated protozoa perform small RNA-directed programmed DNA elimination of thousands of TE-related internal eliminated sequences (IESs) in the newly developed somatic nucleus. In the ciliate Paramecium, secondary small RNAs are produced after the excision of IESs. In this study, we show tha

APA, Harvard, Vancouver, ISO, and other styles

8

Ito, Hiroaki, Toshihiro Omori, and Takuji Ishikawa. "Swimming mediated by ciliary beating: comparison with a squirmer model." Journal of Fluid Mechanics 874 (July 12, 2019): 774–96. http://dx.doi.org/10.1017/jfm.2019.490.

Full text

Abstract:

The squirmer model of Lighthill and Blake has been widely used to analyse swimming ciliates. However, real ciliates are covered by hair-like organelles, called cilia; the differences between the squirmer model and real ciliates remain unclear. Here, we developed a ciliate model incorporating the distinct ciliary apparatus, and analysed motion using a boundary element–slender-body coupling method. This methodology allows us to accurately calculate hydrodynamic interactions between cilia and the cell body under free-swimming conditions. Results showed that an antiplectic metachronal wave was opt

APA, Harvard, Vancouver, ISO, and other styles

9

Jiang, Yong, Wei Zhang, Mingzhuang Zhu, Khaled A. S. Al-Rasheid, and Henglong Xu. "Are non-loricate ciliates a primary contributor to ecological pattern of planktonic ciliate communities? A case study in Jiaozhou Bay, northern China." Journal of the Marine Biological Association of the United Kingdom 92, no. 6 (2012): 1301–8. http://dx.doi.org/10.1017/s0025315412000276.

Full text

Abstract:

The contribution of non-loricate ciliate assemblage to the ecological pattern of a ciliated protozoan community was studied based on a 1-year (June 2007–May 2008) dataset collected from Jiaozhou Bay, northern China. Samples were collected biweekly from five sampling sites. Results showed that: (1) the non-loricate ciliate assemblages were the primary components and significantly correlated with the total ciliate communities in terms of species number, abundance and biomass; (2) the ecological pattern of non-loricate ciliate assemblages was significantly related to that of both total ciliate co

APA, Harvard, Vancouver, ISO, and other styles

10

GÜRELLİ, GÖZDE, and ASEM RAMADAN AMAR MOHAMED. "Ciliated Protozoan Fauna in the Forestomach of Dromedary Camels (Camelus dromedarius) in Libya." Zootaxa 4434, no. 3 (2018): 429. http://dx.doi.org/10.11646/zootaxa.4434.3.2.

Full text

Abstract:

Species composition and distribution of ciliated protozoa obtained from the forestomach of 20 dromedary camels living in Zawiya, Libya were examined. Nineteen species and 10 morphotypes belonging to eight genera were identified. The mean number of ciliates was 54.2 ± 32.9 × 104 cells ml−1 in the forestomach contents, and the mean number of ciliate species per host was 6.5 ± 2.9. Entodinium and Epidinium were the main genera, as these ciliates were found consistently at higher proportions than those of the other genera. In contrast, Ophryoscolex and Polyplastron were only observed at low freque

APA, Harvard, Vancouver, ISO, and other styles

11

Pinheiro, Marcel D. O., Mary E. Power, Barb J. Butler, et al. "Inactivation of the Bacteriophage MS2 by the Ciliated Protozoan, Tetrahymena thermophila." Water Quality Research Journal 43, no. 1 (2008): 69–76. http://dx.doi.org/10.2166/wqrj.2008.009.

Full text

Abstract:

Abstract Because the range of biological mechanisms responsible for the inactivation of viruses in man-made and natural water systems is poorly understood, the involvement of the free-living ciliated protozoan, Tetrahymena thermophila, in viral inactivation was investigated. The ciliate was found to remove the bacteriophage MS2 when the phage and ciliate were co-incubated in a simple salt solution. MS2 was enumerated as plaque forming units (pfus). MS2 removal was achieved only by living and not formalin-fixed ciliates, and was blocked by treatments that impaired the formation of food vacuoles

APA, Harvard, Vancouver, ISO, and other styles

12

CEDROLA, FRANCIANE, ROBERTO JÚNIO PEDROSO DIAS, ISABEL MARTINELE, and MARTA D’AGOSTO. "Description of Diploplastron dehorityi sp. nov. (Entodiniomorphida, Ophryoscolecidae), a new rumen ciliate from Brazilian sheep (Ovis aries)." Zootaxa 4258, no. 6 (2017): 581. http://dx.doi.org/10.11646/zootaxa.4258.6.8.

Full text

Abstract:

To date the genus Diploplastron comprised only one species of ophryoscolecid ciliate, Diploplastron affine, which is characterized by having two retractable ciliary zones in the anterior end of the body, two slender and juxtaposed skeletal plates on the right side, a rod shape macronucleus, and two contractile vacuoles. During study on the characterization of rumen ciliate community composition in Brazilian domestic sheep, we observed ciliates with atypical morphology but with diagnostic features of genus Diploplastron. This study describes Diploplastron dehorityi, a new species of ophryoscole

APA, Harvard, Vancouver, ISO, and other styles

13

Abraham, Jeeva Susan, S. Sripoorna, Swati Maurya, Seema Makhija, Renu Gupta, and Ravi Toteja. "Techniques and tools for species identification in ciliates: a review." International Journal of Systematic and Evolutionary Microbiology 69, no. 4 (2019): 877–94. http://dx.doi.org/10.1099/ijsem.0.003176.

Full text

Abstract:

Ciliates are highly divergent unicellular eukaryotic organisms with nuclear dualism and a highly specialized ciliary pattern. They inhabit all biotopes and play crucial roles in regulating microbial food webs as they prey on bacteria, protists and even on microscopic animals. Nevertheless, subtle morphological differences and tiny sizes hinder proper species identification for many ciliates. In the present review, an attempt has been made to elaborate the various approaches used by modern day ciliate taxonomists for species identification. The different approaches involved in taxonomic charact

APA, Harvard, Vancouver, ISO, and other styles

14

Machemer, H. "Mechanoelectrical transduction mediated through cilia in protists." Proceedings, annual meeting, Electron Microscopy Society of America 44 (August 1986): 190–91. http://dx.doi.org/10.1017/s0424820100142578.

Full text

Abstract:

Unicellular organisms respond to a variety of stimuli, such as light, touch, or chemical action. A Paramecium cell, which meets an obstacle, reverses the swimming direction and eventually resumes forward locomotion in a new direction. It has been a plausible assumption that the cilia are receptors as well as effectors. This view gains support by analogy: ciliary structures exist in various metazoan tissue specialized for stimulus sensation. A previous elegant hypothesis assumed that a ciliary mechanoreceptor employs the ciliary motile machine in reverse in that bending of the axoneme can gener

APA, Harvard, Vancouver, ISO, and other styles

15

Xu, Yiwei, Zhuo Shen, Eleni Gentekaki, Jiahui Xu, and Zhenzhen Yi. "Comparative Transcriptome Analyses during the Vegetative Cell Cycle in the Mono-Cellular Organism Pseudokeronopsis erythrina (Alveolata, Ciliophora)." Microorganisms 8, no. 1 (2020): 108. http://dx.doi.org/10.3390/microorganisms8010108.

Full text

Abstract:

Studies focusing on molecular mechanisms of cell cycles have been lagging in unicellular eukaryotes compared to other groups. Ciliates, a group of unicellular eukaryotes, have complex cell division cycles characterized by multiple events. During their vegetative cell cycle, ciliates undergo macronuclear amitosis, micronuclear mitosis, stomatogenesis and somatic cortex morphogenesis, and cytokinesis. Herein, we used the hypotrich ciliate Pseudokeronopsis erythrina, whose morphogenesis has been well studied, to examine molecular mechanisms of ciliate vegetative cell cycles. Single-cell transcrip

APA, Harvard, Vancouver, ISO, and other styles

16

Stickle, William B., Eugene N. Kozloff, and Shana Story. "Physiology of the ciliate Orchitophrya stellarum and its experimental infection of Leptasterias spp." Canadian Journal of Zoology 85, no. 2 (2007): 201–6. http://dx.doi.org/10.1139/z06-211.

Full text

Abstract:

Orchitophrya stellarum Cépède, 1907 is a facultative ciliate that parasitizes male asteriid sea stars in the North Atlantic and Pacific oceans. The ciliate also exists in seawater where it feeds on bacteria associated with tissue or yeast. This study is designed to determine the tolerance, growth rate, contractile vacuole activity, and infectivity to Leptasterias Verrill, 1866 spp. as a function of the sea star’s reproductive cycle stage. The tolerance range of O. stellarum in seawater containing bacteria is 2 practical salinity units (PSU) at 8 °C and 12.5 PSU at 25 °C; the ciliate tolerated

APA, Harvard, Vancouver, ISO, and other styles

17

Hojo, Fuhito, Daisuke Sato, Junji Matsuo, et al. "Ciliates Expel Environmental Legionella-Laden Pellets To Stockpile Food." Applied and Environmental Microbiology 78, no. 15 (2012): 5247–57. http://dx.doi.org/10.1128/aem.00421-12.

Full text

Abstract:

ABSTRACTWhenTetrahymenaciliates are cultured withLegionella pneumophila, the ciliates expel bacteria packaged in free spherical pellets. Why the ciliates expel these pellets remains unclear. Hence, we determined the optimal conditions for pellet expulsion and assessed whether pellet expulsion contributes to the maintenance of growth and the survival of ciliates. When incubated with environmentalL. pneumophila, the ciliates expelled the pellets maximally at 2 days after infection. Heat-killed bacteria failed to produce pellets from ciliates, and there was no obvious difference in pellet product

APA, Harvard, Vancouver, ISO, and other styles

18

Stott, R., E. May, E. Matsushita, and A. Warren. "Protozoan predation as a mechanism for the removal of cryptosporidium oocysts from wastewaters in constructed wetlands." Water Science and Technology 44, no. 11-12 (2001): 191–98. http://dx.doi.org/10.2166/wst.2001.0828.

Full text

Abstract:

The removal of the protozoan parasite, Cryptosporidium parvum, from wastewaters is becoming of increasing importance in the UK, especially since contamination of raw waters by sewage effluents has been implicated in major waterborne outbreaks of cryptosporidiosis in recent years. Compared to conventional wastewater-treatment processes, constructed wetlands have demonstrated favourable removal rates for Cryptosporidium oocysts. The removal mechanisms, however, remain unknown. Predation by free-living ciliated protozoa, which are commonly found in constructed wetlands, was investigated as a poss

APA, Harvard, Vancouver, ISO, and other styles

19

DURÁN-RAMÍREZ, CARLOS ALBERTO, ROBERTO JÚNIO PEDROSO DIAS, and ROSAURA MAYÉN-ESTRADA. "Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region." Zootaxa 4895, no. 1 (2020): 1–36. http://dx.doi.org/10.11646/zootaxa.4895.1.1.

Full text

Abstract:

Species from almost all classes of ciliates are prone to be found inhabiting bromeliads in the Neotropics, from Mexico to Brazil, and the Antilles. Studies of ciliates recorded from bromeliads have been carried out from few bromeliad species, mainly in tropical forest. We compiled all available data of free living and sessile ciliates from bromeliads, including their geographic distribution and bromeliad identity. We provide a list of 170 ciliate species that have been recorded in 52 epiphytic and terrestrial bromeliad species, distributed in ten Neotropical countries . Most of the species bel

APA, Harvard, Vancouver, ISO, and other styles

20

Kalinowska, Krystyna, and Maciej Karpowicz. "Ice-on and ice-off dynamics of ciliates and metazooplankton in the Łuczański Canal (Poland)." Aquatic Ecology 54, no. 4 (2020): 1121–34. http://dx.doi.org/10.1007/s10452-020-09797-3.

Full text

Abstract:

Abstract The ciliate–metazooplankton trophic coupling is well documented from both laboratory and field experiments. The knowledge about these relationships during winter ice-covered periods is very scarce. The abundance and composition of planktonic ciliates, rotifers and crustaceans were studied during the ice-covered and ice-free periods in the Łuczański Canal (Masurian Lakeland, Poland). We hypothesised that in winter, rotifers play a major role in the top-down control of ciliates and that ciliate–metazooplankton relationships differ not only between the ice-covered and ice-free periods, b

APA, Harvard, Vancouver, ISO, and other styles

21

Matsuda, Atsushi, Annie Wan-Yi Shieh, Douglas L. Chalker, and James D. Forney. "The Conjugation-Specific Die5 Protein Is Required for Development of the Somatic Nucleus in both Paramecium and Tetrahymena." Eukaryotic Cell 9, no. 7 (2010): 1087–99. http://dx.doi.org/10.1128/ec.00379-09.

Full text

Abstract:

ABSTRACTDevelopment in ciliated protozoa involves extensive genome reorganization within differentiating macronuclei, which shapes the somatic genome of the next vegetative generation. Major events of macronuclear differentiation include excision of internal eliminated sequences (IESs), chromosome fragmentation, and genome amplification. Proteins required for these events include those with homology throughout eukaryotes as well as proteins apparently unique to ciliates. In this study, we identified the ciliate-specificDefective inIESExcision 5 (DIE5) genes ofParamecium tetraurelia(PtDIE5) and

APA, Harvard, Vancouver, ISO, and other styles

22

Vlaičević, Barbara, Renata Matoničkin Kepčija, Vesna Gulin, Ivana Turković Čakalić, Mirjana Kepec, and Dubravka Čerba. "Key drivers influencing the colonization of periphytic ciliates and their functional role in hydrologically dynamic floodplain lake ecosystem." Knowledge & Management of Aquatic Ecosystems, no. 422 (2021): 33. http://dx.doi.org/10.1051/kmae/2021032.

Full text

Abstract:

We investigated the colonization process and community dynamics of periphytic ciliates in a floodplain lake. To elucidate the functional role of ciliates, we investigated variations in their functional traits during colonization. Our research revealed that ciliate colonization process differs significantly between spring and summer, mainly due to differences in water temperature and hydrological regime. The most pronounced influence of temperature-initiated differences was observed during the initial phase of colonization, during which faster colonization with different pioneer species, and mo

APA, Harvard, Vancouver, ISO, and other styles

23

Ulstrup, Karin E., Michael Kühl, and David G. Bourne. "Zooxanthellae Harvested by Ciliates Associated with Brown Band Syndrome of Corals Remain Photosynthetically Competent." Applied and Environmental Microbiology 73, no. 6 (2007): 1968–75. http://dx.doi.org/10.1128/aem.02292-06.

Full text

Abstract:

ABSTRACT Brown band syndrome is a new coral affliction characterized by a local accumulation of yet-unidentified ciliates migrating as a band along the branches of coral colonies. In the current study, morphologically intact zooxanthellae (= Symbiodinium) were observed in great numbers inside the ciliates (>50 dinoflagellates per ciliate). Microscale oxygen measurements and variable chlorophyll a fluorescence analysis along with microscopic observations demonstrated that zooxanthellae within the ciliates are photosynthetically competent and do not become compromised during the progression o

APA, Harvard, Vancouver, ISO, and other styles

24

Aslan, Erhan, Nurçin Küçükoğlu, and Muhittin Arslanyolu. "A comparative in-silico analysis of autophagy proteins in ciliates." PeerJ 5 (January 17, 2017): e2878. http://dx.doi.org/10.7717/peerj.2878.

Full text

Abstract:

Autophagy serves as a turnover mechanism for the recycling of redundant and/or damaged macromolecules present in eukaryotic cells to re-use them under starvation conditions via a double-membrane structure known as autophagosome. A set of eukaryotic genes called autophagy-related genes (ATGs) orchestrate this highly elaborative process. The existence of these genes and the role they play in different eukaryotes are well-characterized. However, little is known of their role in some eukaryotes such as ciliates. Here, we report the computational analyses of ATG genes in five ciliate genomes to und

APA, Harvard, Vancouver, ISO, and other styles

25

DURÁN-RAMÍREZ, CARLOS ALBERTO, and ROSAURA MAYÉN-ESTRADA. "Ciliate species from tank-less bromeliads in a dry tropical forest and their geographical distribution in the Neotropics." Zootaxa 4497, no. 2 (2018): 241. http://dx.doi.org/10.11646/zootaxa.4497.2.5.

Full text

Abstract:

The study of ciliate diversity in tropical environments remains scarce. In Neotropical forests, bromeliads are a common component of the vascular flora; bromeliads with tank morphology intercept rain water and detritus, resulting in the formation of a phytotelm, where heterotrophic protist communities like ciliates can establish. However, it is not known if ciliates inhabit tank-less bromeliads. For this reason, the goal of the present study was to investigate if ciliates can establish between the leaf axils of five terrestrial and epiphytic tank-less bromeliad species in a dry tropical forest

APA, Harvard, Vancouver, ISO, and other styles

26

Li, Jing, Qingyu Liao, Mei Li, Jinhong Zhang, Nora Fungyee Tam, and Runlin Xu. "Community Structure and Biodiversity of Soil Ciliates at Dongzhaigang Mangrove Forest in Hainan Island, China." Applied and Environmental Soil Science 2010 (2010): 1–8. http://dx.doi.org/10.1155/2010/103819.

Full text

Abstract:

The distribution of soil ciliates in three different habitats within a typical mangrove forest in Dongzhaigang, Hainan, China was investigated. The abundance, biodiversity, and community similarity of ciliates in fresh and air-dried soil with different, physical/chemical properties were analyzed. Three Classes, 11 Orders, 34 Genera, and 70 species of ciliates were found with the first dominant group being Hypotrichida. Ciliate biodiversities followed Site B < Site A < Site C in both fresh and dried samples. Ciliate abundance was positively correlated with soil moisture, salinity, organic

APA, Harvard, Vancouver, ISO, and other styles

27

Grimes, G. W., and R. H. Gavin. "Ciliary protein conservation during development in the ciliated protozoan, Oxytricha." Journal of Cell Biology 105, no. 6 (1987): 2855–59. http://dx.doi.org/10.1083/jcb.105.6.2855.

Full text

Abstract:

The ciliated protozoan Oxytricha fallax possesses multiple highly localized clusters of basal bodies and cilia, all of which are broken down and rebuilt during prefission morphogenesis-with one major exception. The adoral zone of membranelles (AZM) of the ciliate oral apparatus contains approximately 1,500-2,000 basal bodies and cilia, and it is the only compound ciliary structure that is passed morphologically intact to one daughter cell at each cell division. By labeling all proteins in cells, and then picking the one daughter cell possessing the original labeled AZM, we could then evaluate

APA, Harvard, Vancouver, ISO, and other styles

28

Kittelmann, Sandra, Savannah R. Devente, Michelle R. Kirk, Henning Seedorf, Burk A. Dehority, and Peter H. Janssen. "Phylogeny of Intestinal Ciliates, Including Charonina ventriculi, and Comparison of Microscopy and 18S rRNA Gene Pyrosequencing for Rumen Ciliate Community Structure Analysis." Applied and Environmental Microbiology 81, no. 7 (2015): 2433–44. http://dx.doi.org/10.1128/aem.03697-14.

Full text

Abstract:

ABSTRACTThe development of high-throughput methods, such as the construction of 18S rRNA gene clone or pyrosequencing libraries, has allowed evaluation of ciliate community composition in hundreds of samples from the rumen and other intestinal habitats. However, several genera of mammalian intestinal ciliates have been described based only on morphological features and, to date, have not been identified using molecular methods. Here, we isolated single cells of one of the smallest but widely distributed intestinal ciliates,Charonina ventriculi, and sequenced its 18S rRNA gene. We verified the

APA, Harvard, Vancouver, ISO, and other styles

29

Dopheide, Andrew, Gavin Lear, Rebecca Stott, and Gillian Lewis. "Relative Diversity and Community Structure of Ciliates in Stream Biofilms According to Molecular and Microscopy Methods." Applied and Environmental Microbiology 75, no. 16 (2009): 5261–72. http://dx.doi.org/10.1128/aem.00412-09.

Full text

Abstract:

ABSTRACT Ciliates are an important component of aquatic ecosystems, acting as predators of bacteria and protozoa and providing nutrition for organisms at higher trophic levels. Understanding of the diversity and ecological role of ciliates in stream biofilms is limited, however. Ciliate diversity in biofilm samples from four streams subject to different impacts by human activity was assessed using microscopy and terminal restriction fragment length polymorphism (T-RFLP) analysis of 18S rRNA sequences. Analysis of 3′ and 5′ terminal fragments yielded very similar estimates of ciliate diversity.

APA, Harvard, Vancouver, ISO, and other styles

30

Qiu, Dajun, Liangmin Huang, Hui Huang, Jianhui Yang, and Senjie Lin. "Two Functionally Distinct Ciliates Dwelling in Acropora Corals in the South China Sea near Sanya, Hainan Province, China." Applied and Environmental Microbiology 76, no. 16 (2010): 5639–43. http://dx.doi.org/10.1128/aem.03009-09.

Full text

Abstract:

ABSTRACT We detected and characterized two distinct scuticociliate ciliates inside Acropora corals in the South China Sea. One, voraciously foraging on Symbiodinium, resembled the brown band disease of ciliates. The other, which is closely related to Paranophrys magna, grazed on detritus instead of Symbiodinium. These two ciliates may serve contrasting functions (competitor versus “cleaner”) in the coral-ciliate-Symbiodinium triangular relationship.

APA, Harvard, Vancouver, ISO, and other styles

31

Weber, S. D., W. Ludwig, K. H. Schleifer, and J. Fried. "Microbial Composition and Structure of Aerobic Granular Sewage Biofilms." Applied and Environmental Microbiology 73, no. 19 (2007): 6233–40. http://dx.doi.org/10.1128/aem.01002-07.

Full text

Abstract:

ABSTRACT Aerobic activated sludge granules are dense, spherical biofilms which can strongly improve purification efficiency and sludge settling in wastewater treatment processes. In this study, the structure and development of different granule types were analyzed. Biofilm samples originated from lab-scale sequencing batch reactors which were operated with malthouse, brewery, and artificial wastewater. Scanning electron microscopy, light microscopy, and confocal laser scanning microscopy together with fluorescence in situ hybridization (FISH) allowed insights into the structure of these biofil

APA, Harvard, Vancouver, ISO, and other styles

32

Rychert, Krzysztof, Magdalena Wielgat-Rychert, and Łukasz Lemańczyk. "Impact of the Słupia River waters on microbial communities in the port of Ustka and adjacent Baltic Sea waters." Oceanological and Hydrobiological Studies 47, no. 4 (2018): 429–38. http://dx.doi.org/10.1515/ohs-2018-0040.

Full text

Abstract:

Abstract The distribution of bacterial and ciliate abundance, ciliate community composition and other parameters were studied during summer along a transect from the mouth of the Słupia River to offshore waters (southern Baltic Sea). Bacteria were examined under an epifluorescence microscope and ciliates were observed under an inverted microscope. Two water masses were identified along the transect. Less saline waters in the river mouth and in the surface layer in the port of Ustka were characterized by high bacterial abundance (5.51–6.16 × 106 ml−1) and low ciliate abundance (0.34–0.90 cells

APA, Harvard, Vancouver, ISO, and other styles

33

Pinheiro, Marcel D. O., Mary E. Power, Barbara J. Butler, et al. "Use of Tetrahymena thermophila To Study the Role of Protozoa in Inactivation of Viruses in Water." Applied and Environmental Microbiology 73, no. 2 (2006): 643–49. http://dx.doi.org/10.1128/aem.02363-06.

Full text

Abstract:

ABSTRACT The ability of a ciliate to inactivate bacteriophage was studied because these viruses are known to influence the size and diversity of bacterial populations, which affect nutrient cycling in natural waters and effluent quality in sewage treatment, and because ciliates are ubiquitous in aquatic environments, including sewage treatment plants. Tetrahymena thermophila was used as a representative ciliate; T4 was used as a model bacteriophage. The T4 titer was monitored on Escherichia coli B in a double-agar overlay assay. T4 and the ciliate were incubated together under different condit

APA, Harvard, Vancouver, ISO, and other styles

34

Pauleto, GM, LFM Velho, PRB Buosi, AFS Brão, FA Lansac-Tôha, and CC Bonecker. "Spatial and temporal patterns of ciliate species composition (Protozoa: Ciliophora) in the plankton of the Upper Paraná River floodplain." Brazilian Journal of Biology 69, no. 2 suppl (2009): 517–27. http://dx.doi.org/10.1590/s1519-69842009000300007.

Full text

Abstract:

Spatial and temporal patterns of plankton ciliates species composition in the Paraná River floodplain were investigated. Samplings were carried out in twelve environments in two distinct hydrological periods (limnophase and potamophase). A total of 61 species of ciliates were recorded, and among them 21 are classified as pelagic while 40 are considered preferentially as littoral species. The registered species belong to eleven orders, and among them, Prostomatida was the most specious followed by Hymenostomatida and Peritrichida. The ciliate species composition was significantly distinct betwe

APA, Harvard, Vancouver, ISO, and other styles

35

Dias, Roberto Júnio Pedroso, Sthefane D'Ávila, and Marta D'Agosto. "First record of epibionts peritrichids and suctorians (Protozoa, Ciliophora) on Pomacea lineata (Spix, 1827)." Brazilian Archives of Biology and Technology 49, no. 5 (2006): 807–12. http://dx.doi.org/10.1590/s1516-89132006000600015.

Full text

Abstract:

This study made a survey on the ciliate protozoans from Peritrichid and Suctorian taxa, epibionts of Pomacea lineata (Spix, 1827) (Ampullariidae). Fifty mollusks were collected in places of irrigation ditches and shell was scraped with a scalpel and the extracted material was analyzed in vivo by light microscopy. All examined mollusks presented epibiont ciliates on their shells. For the first time epibiont ciliates in P. lineata was record. Seven genera of ciliates: five peritrichids and two suctorians, were identified and classified within the subclass Peritrichia: Carchesium Ehrenberg, 1838

APA, Harvard, Vancouver, ISO, and other styles

36

Fonty, Gérard, Jean Senaud, Jean-Pierre Jouany, and Philippe Gouet. "Establishment of ciliate protozoa in the rumen of conventional and conventionalized lambs: influence of diet and management conditions." Canadian Journal of Microbiology 34, no. 3 (1988): 235–41. http://dx.doi.org/10.1139/m88-044.

Full text

Abstract:

The establishment of ciliate protozoa in the rumen was studied in conventional lambs reared under different conditions of management. The role of the microflora in the kinetics of this establishment was also investigated in conventionalized lambs. In lambs reared under farm conditions ciliate protozoa appeared in the following order: Entodinium (15-20 days), Polyplastron, Eudiplodinium, and Epidinium (20–25 days), and Isotricha (50 days). Entodinium was the most abundant (105–106 ciliates mL−1). During the 3rd month, ciliates disappeared spontaneously in about 60% of the lambs during a period

APA, Harvard, Vancouver, ISO, and other styles

37

CHATTERJEE, TAPAS, IGOR DOVGAL, VLADIMIR PEŠIĆ, and ANDRZEJ ZAWAL. "A checklist of epibiont suctorian and peritrich ciliates (Ciliophora) on halacarid and hydrachnid mites (Acari: Halacaridae & Hydrachnidia)." Zootaxa 4457, no. 3 (2018): 415. http://dx.doi.org/10.11646/zootaxa.4457.3.4.

Full text

Abstract:

Based on published records and original data, a list of the epibiont suctorian and peritrich ciliates (Ciliophora) on halacarid and hydrachnid mites is presented. Altogether 13 suctorian and 10 peritrich species from hydrachnid and halacarid mites were listed. From this list, six suctorian and one peritrich species have been reported from halacarid mites, while four suctorian and four peritrich species were found on hydrachnid mites determined up to species level. The remaining specimens were determined upto the generic level. The halacarid and hydrachnid species do not share any suctorian and

APA, Harvard, Vancouver, ISO, and other styles

38

Schilde, Christina, Barbara Schönemann, Ivonne M. Sehring, and Helmut Plattner. "Distinct Subcellular Localization of a Group of Synaptobrevin-Like SNAREs in Paramecium tetraurelia and Effects of Silencing SNARE-Specific Chaperone NSF." Eukaryotic Cell 9, no. 2 (2009): 288–305. http://dx.doi.org/10.1128/ec.00220-09.

Full text

Abstract:

ABSTRACT We have identified new synaptobrevin-like SNAREs and localized the corresponding gene products with green fluorescent protein (GFP)-fusion constructs and specific antibodies at the light and electron microscope (EM) levels. These SNAREs, named Paramecium tetraurelia synaptobrevins 8 to 12 (PtSyb8 to PtSyb12), showed mostly very restricted, specific localization, as they were found predominantly on structures involved in endo- or phagocytosis. In summary, we found PtSyb8 and PtSyb9 associated with the nascent food vacuole, PtSyb10 near the cell surface, at the cytostome, and in close a

APA, Harvard, Vancouver, ISO, and other styles

39

Ratsak, C. H., B. W. Kooi, and H. W. van Verseveld. "Biomass Reduction and Mineralization Increase Due to the Ciliate Tetrahymena pyriformis Grazing on the Bacterium Pseudomonas fluorescens." Water Science and Technology 29, no. 7 (1994): 119–28. http://dx.doi.org/10.2166/wst.1994.0322.

Full text

Abstract:

The currently high sludge production and increasing processing costs call for waste-water treatment plants with high purification efficiency and low biomass production. We studied the latter issue through two-stage chemostat cascades to assess the overall biomass reduction due to ciliate grazing. The bacteria were cultured in the first chemostat whereas the ciliates, grazing on the bacteria from the first chemostat, were cultured in the second chemostat. Mathematical modelling was used to describe the bacteria/ciliate dynamics and some of the growth parameters were fitted. In the second chemos

APA, Harvard, Vancouver, ISO, and other styles

40

Taylor, William D., and Miriam L. Heynen. "Seasonal and Vertical Distribution of Ciliophora in Lake Ontario." Canadian Journal of Fisheries and Aquatic Sciences 44, no. 12 (1987): 2185–91. http://dx.doi.org/10.1139/f87-268.

Full text

Abstract:

Ciliated protozoa were sampled at discrete depths from April through October 1982 at a nearshore (38 m depth) and an offshore (178 m depth) station in Lake Ontario. Nearshore, ciliates increased from less than 1 g∙m−2 in early spring to a maximum of about 5 g∙m−2 (wet weight) inside the thermal bar in late May and early June. Summer values varied around 2 g∙m−2 and declined even further in October. Offshore ciliate biomass was relatively constant; the observed range was only 2.8–6.5 g∙m−2. Early spring biomass was much higher than nearshore, suggesting that a significant population persists th

APA, Harvard, Vancouver, ISO, and other styles

41

Pettigrosso, Rosa E., and Cecilia A. Popovich. "Phytoplankton-aloricate ciliate community in the Bahía Blanca Estuary (Argentina): seasonal patterns and trophic groups." Brazilian Journal of Oceanography 57, no. 3 (2009): 215–27. http://dx.doi.org/10.1590/s1679-87592009000300005.

Full text

Abstract:

The seasonal pattern of the phytoplankton-aloricate ciliate community is an adequate indicator of trophic coupling and nutrient cycling in coastal environments. The size-fractionated, abundance, biomass and composition of a phytoplankton-aloricate ciliate community were ascertained in the Bahía Blanca Estuary from February 1994 to February 1995. In addition, ciliate production and excretion rates by size class were estimated. A winter-early spring diatom bloom was the most important event in the annual cycle. To evaluate the significance of phytoplankton size in the food web, <25 µm and &gt

APA, Harvard, Vancouver, ISO, and other styles

42

Sua, Luz Fernanda. "Estudio de cilias respiratorias y requerimientos básicos de la muestra para microscopía electrónica de transmisión." Revista Colombiana de Neumología 29, no. 2 (2018): 86. http://dx.doi.org/10.30789/rcneumologia.v29.n2.2017.272.

Full text

Abstract:

La discinesia ciliar primaria (DCP) es una enfermedad hereditaria, principalmente autosómica recesiva, caracterizada por disfunción de las células ciliadas presentes en los tejidos respiratorio y gonadal, entre otros. La prevalencia aproximada de síndrome de Kartagener, que basa el diagnóstico en el estudio ultraestructural ciliar, es de 1/10 000 nacidos vivos (1, 2). La DCP incluye un grupo de enfermedades en la que las cilias respiratorias son inmóviles (síndrome de inmovilidad ciliar), el movimiento ciliar es discinético e ineficaz (DCP) o no hay cilias (aplasia ciliar), este último es extr

APA, Harvard, Vancouver, ISO, and other styles

43

Purschke, Günter. "Comparative electron microscopic investigation of the nuchal organs in Protodriloides, Protodrilus, and Saccocirrus (Annelida, Polychaeta)." Canadian Journal of Zoology 68, no. 2 (1990): 325–38. http://dx.doi.org/10.1139/z90-048.

Full text

Abstract:

The nuchal organs of the interstitial polychaetes Protodriloides chaetifer, Protodriloides symbioticus, Protodrilus ciliatus, Protodrilus adhaerens, Saccocirrus krusadensis, and Saccocirrus papillocercus were investigated by scanning and transmission electron microscopy. These organs vary from spherical to elongated ciliary brushes and usually lie in shallow pits. In P. symbioticus only a reduced nuchal organ exists, whereas the other species all have well-developed nuchal organs of similar structure consisting of ciliated supportive cells and bipolar primary sensory cells. The perikarya of th

APA, Harvard, Vancouver, ISO, and other styles

44

Coppellotti, Olimpia, and Paola Matarazzo. "Ciliate colonization of artificial substrates in the Lagoon of Venice." Journal of the Marine Biological Association of the United Kingdom 80, no. 3 (2000): 419–27. http://dx.doi.org/10.1017/s0025315400002113.

Full text

Abstract:

In work performed during the period February–October 1996, about 47 species of ciliates were detected in the communities of Aufwuchs, or periphyton, colonizing glass substrates submerged in three sites in the Lagoon of Venice, two in the urban area of Chioggia and one at a mussel-farming site. The ciliate communities were composed of sessile forms of Peritrichia and Suctoria and of motile ciliates, belonging especially to Hypotrichia and Karyorelictea. Four species of the peritrich Zoothamnium and the suctorians Acineta tuberosa and Ephelota gemmipara are reported here for the first time in th

APA, Harvard, Vancouver, ISO, and other styles

45

Proshkin, Boris V., and Andrey V. Klimov. "Systematic position of Populus ciliata Wall. ex Royle on the study of shoot morphology and petiolar anatomy." SOCIALNO-ECOLOGICHESKIE TECHNOLOGII 10, no. 1 (2020): 9–23. http://dx.doi.org/10.31862/2500-2961-2020-10-1-9-23.

Full text

Abstract:

Populus ciliate – ciliated poplar is distributed in the Himalayas at altitudes from 1300 to 3400 m above sea level, along river banks and wet slopes. The systematic position of the taxon remains unclear, although in most modern works it is attributed to the Tacamahaca section. The purpose of this study is to study the morphological features of crown shoots and the anatomical structure of petioles of Populus ciliata leaves to clarify its systematic position. Studies of the morphology of P. ciliata showed that it did not have specialized shortened shoots marking a section of balsamic poplars – d

APA, Harvard, Vancouver, ISO, and other styles

46

Ivanova, Еkaterina, Igor Dovgal, and Alice Newton. "FIRST RECORDS OF EPIBIONT CILIATES (CILIOPHORA) IN METHANE ENRICHED SEDIMENTS WITH SPECIES REDESCRIPTIONS." Ecologica Montenegrina 10 (April 7, 2017): 51–57. http://dx.doi.org/10.37828/em.2017.10.8.

Full text

Abstract:

The article is dedicated to re-discovery of ciliates Loricophrya bosporica (Suctorea) and Cothurnia sp. (Peritrichia) found at nematodes from methane seep of the Ria Formosa lagoon (Southern Portugal). Based on authors’ data the lagoon sediments might be attributing to the hypoxic (periodically anoxic) methane seepage environment. The morphological characterizations of found ciliates with emphasis on poorly studied stylotheca structure in suctorian ciliate and macronucleus morphology in peritrich are presented.

APA, Harvard, Vancouver, ISO, and other styles

47

Dias, Roberto Júnio P., and Marta D'Agosto. "Feeding behavior of Frontonia leucas (Ehrenberg) (Protozoa, Ciliophora, Hymenostomatida) under different environmental conditions in a lotic system." Revista Brasileira de Zoologia 23, no. 3 (2006): 758–63. http://dx.doi.org/10.1590/s0101-81752006000300021.

Full text

Abstract:

The objective of this study was to record and describe the morphological changes and the ingestion mechanisms of Frontonia leucas (Ehrenberg, 1833) according to the food type and to relate the food ingested with the different environmental conditions in a lotic system, namely São Pedro stream, located in the municipality of Juiz de Fora, Minas Gerais, Brazil. We sampled three points on a monthly basis from August 2002 to June 2003, each of which receiving different levels of untreated sewage. We prepared culture media for the ciliate specimens containing filtered water from each point and the

APA, Harvard, Vancouver, ISO, and other styles

48

Babko, R., J. Fyda, T. Kuzmina, and A. Hutorowicz. "Ciliates on the Macrophytes in Industrially Heated Lakes (Kujawy Lakeland, Poland)." Vestnik Zoologii 44, no. 6 (2010): e-1-e-11. http://dx.doi.org/10.2478/v10058-010-0032-8.

Full text

Abstract:

Ciliates on the Macrophytes in Industrially Heated Lakes (Kujawy Lakeland, Poland)The ciliate assemblage on the macrophytes was examined in 2005 during the vegetation period in the Konińskie Lakes which are heating by post-cooling waters from thermal electric plants. As a result of changed temperature regimen the alien thermophilic macrophyteVallisneria spiralisis becoming increasingly common in the littoral zone. A total of 150 ciliate taxa belonging to 27 orders were found. Greater ciliate species diversity was found on architecturally complex, submerged forms such asCeratophyllum demersuman

APA, Harvard, Vancouver, ISO, and other styles

49

Omori, Toshihiro, Hiroaki Ito, and Takuji Ishikawa. "Swimming microorganisms acquire optimal efficiency with multiple cilia." Proceedings of the National Academy of Sciences 117, no. 48 (2020): 30201–7. http://dx.doi.org/10.1073/pnas.2011146117.

Full text

Abstract:

Planktonic microorganisms are ubiquitous in water, and their population dynamics are essential for forecasting the behavior of global aquatic ecosystems. Their population dynamics are strongly affected by these organisms’ motility, which is generated by their hair-like organelles, called cilia or flagella. However, because of the complexity of ciliary dynamics, the precise role of ciliary flow in microbial life remains unclear. Here, we have used ciliary hydrodynamics to show that ciliates acquire the optimal propulsion efficiency. We found that ciliary flow highly resists an organism’s propul

APA, Harvard, Vancouver, ISO, and other styles

50

Ekelund, Flemming, Helle B. Frederiksen, and Regin Rønn. "Population Dynamics of Active and Total Ciliate Populations in Arable Soil Amended with Wheat." Applied and Environmental Microbiology 68, no. 3 (2002): 1096–101. http://dx.doi.org/10.1128/aem.68.3.1096-1101.2002.

Full text

Abstract:

ABSTRACT Soil protozoa are characterized by their ability to produce cysts, which allows them to survive unfavorable conditions (e.g., desiccation) for extended periods. Under favorable conditions, they may rapidly excyst and begin feeding, but even under optimal conditions, a large proportion of the population may be encysted. The factors governing the dynamics of active and encysted cells in the soil are not well understood. Our objective was to determine the dynamics of active and encysted populations of ciliates during the decomposition of freshly added organic material. We monitored, in s

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!