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Current knowledge of the starvation and reproduction stages of the limnic species Holophrya teres (Ciliophora: Prostomatea)

Published on Jul 18, 2019in Biologia 0.73
· DOI :10.2478/s11756-019-00311-1
Simona Benčaťová1
Estimated H-index: 1
(Comenius University in Bratislava),
Františka Križanová (Comenius University in Bratislava), Eva Tirjaková5
Estimated H-index: 5
(Comenius University in Bratislava)
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Published on May 1, 2017in Parasitology 2.46
Rui Ma3
Estimated H-index: 3
,
Xinpeng Fan9
Estimated H-index: 9
+ 2 AuthorsFukang Gu4
Estimated H-index: 4
Published on Dec 1, 2016in Parasites & Vectors 3.03
Fei Yin7
Estimated H-index: 7
(Chinese Academy of Fishery Sciences),
Peng Sun7
Estimated H-index: 7
(Chinese Academy of Fishery Sciences)
+ 1 AuthorsQuanxin Gao8
Estimated H-index: 8
(Chinese Academy of Fishery Sciences)
Background Cryptocaryon irritans, a species of obligatory ciliate ectoparasite, can infect various species of marine teleost fish. Cryptocaryon irritans that fall to the seabed or aquarium bottom in winter can form “dormant tomonts” and wake up when the temperature rises the next year. Abundant studies and analyses on the dormant tomonts were carried out at the transcriptome level, in order to investigate the molecular mechanism of C. irritans tomonts entering the dormant state under low-tempera...
Published on Jun 1, 2011in Italian Journal of Zoology 1.12
Franco Verni23
Estimated H-index: 23
(UniPi: University of Pisa),
Giovanna Rosati20
Estimated H-index: 20
(UniPi: University of Pisa)
Abstract Encystment is a reversible cell differentiation process that also requires an antagonistic process, i.e. excystment. Both processes are genetically encoded. Encystment is of common occurrence among free-living ciliates and may serve several different purposes. In some ciliates, this process is part of the regular life cycle (reproductive cyst), while many other ciliates undergo encystment when environmental conditions become adverse (resting cyst). In this review, the different phases a...
Published on Jan 1, 2010
Denis H. Lynn40
Estimated H-index: 40
Published on Jan 1, 2005in Diseases of Aquatic Organisms 1.66
Daniel P. Molloy19
Estimated H-index: 19
(New York State Education Department),
Denis H. Lynn40
Estimated H-index: 40
(U of G: University of Guelph),
Laure Giambérini20
Estimated H-index: 20
(Metz)
Ophryoglena hemophaga n. sp. is described from a freshwater Dreissena polymorpha population in the Rhine delta of the Netherlands. This is the first ophryoglenine species (order Hymenostomatida, suborder Ophryoglenina) recorded as a molluscan parasite. As is typical of ciliates in the suborder Ophryoglenina, O. hemophaga exhibits a polymorphic life history with cyst-ment and reproduction by palintomy. Trophonts were observed within digestive gland lumina, and zebra mussel hemocytes were present ...
Published on Jan 1, 2003in Diseases of Aquatic Organisms 1.66
Apolinario V. Yambot3
Estimated H-index: 3
,
Yen-Ling Song24
Estimated H-index: 24
(NTU: National Taiwan University),
Hung-Hung Sung9
Estimated H-index: 9
The ciliated protozoan parasite Cryptocaryon irritans infecting marine fishes in Taiwan is described. Developmental characteristics and sequences of the ribosomal DNA regions such as part of 18 S, the entire first internal transcribed spacer, and part of 5.8 S of various Taiwan isolates of C. irritans were investigated. A total of 5 isolates was obtained from different fish-host species and localities, the majority from cultured fish species. C. irritans from Taiwan is able to shift its develop-...
Published on Aug 1, 2000in Journal of Photochemistry and Photobiology B-biology 4.07
L Cadetti1
Estimated H-index: 1
,
Fabio Marroni23
Estimated H-index: 23
+ 3 AuthorsGiuliano Colombetti15
Estimated H-index: 15
Abstract The sensitivity of positive phototactic orientation of cells of the ciliated protozoan Ophryoglena flava has been measured for white light, broad-band blue and red light, and narrow-band monochromatic light, using a laboratory-developed computer aided system. The white-light fluence rate–response curve shows that there is no negative phototaxis in the fluence rate range investigated (0–15 W/m 2 ) and no adaptation phenomena; it is very well fitted by a hyperbolic function; the fluence r...
Published on Dec 1, 1997in Aquarium Sciences and Conservation
Angelo Colorni1
Estimated H-index: 1
,
Peter Burgess1
Estimated H-index: 1
Cryptocaryon irritans Brown 1951, a holotrichous ciliate parasite of marine fishes, causes ‘marine white spot disease’. In aquaria, C. irritans can cause acute damage and heavy mortalities to marine teleosts. Although first described 60 years ago, only within the last decade has detailed information emerged concerning its life cycle, transmission and pathogenesis. An update of our knowledge of this important aquarium fish parasite is presented here.
Published on Jun 1, 1997in European Journal of Protistology 2.63
Benjamin K. Diggles3
Estimated H-index: 3
(UQ: University of Queensland)
Summary The morphology of two isolates of the parasitic ciliate Cryptocaryon irritans obtained from wild fish from S-E Queensland, Australia, was examined by observation of live parasites, silver impregnation (protargol, silver carbonate, silver nitrate), scanning (SEM) and transmission (TEM) electron microscopy. Trophonts of both isolates were characterised by an apical cytostome and a post-oral groove readily visible in silver carbonate impregnations and SEM. The groove consisted of three memb...
Published on Sep 1, 1996in Archiv für Protistenkunde
Genoveva F. Esteban24
Estimated H-index: 24
,
Bland J. Finlay46
Estimated H-index: 46
Summary Descriptions are provided of the morphology, infraciliature, life cycle, and ecology of the freshwater ciliate Prorodon viridis. P. viridis Prorodon viridis. P. viridis is a prostomatid ciliate with endosymbiotic Chlorellae and with a cosmopolitan distribution. The ciliate lives close to the oxic-anoxic boundary in freshwater lakes and ponds worldwide, and it is able to survive in anoxic, dimly-lit deep waters. The O 2 -evolving endosymbionts - the zoochlorellae - probably sustain the ae...
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