Abstract：
:The morphology of four cyrtophorian ciliates, Dysteria ovalis, D. semilunaris, Phascolodon vorticella, and Chlamydonellopsis calkinsi, were investigated using living observation and protargol-staining. The morphology of D. ovalis is revealed in detail for the first time, and it is characterized by the following combination of features: size 40-50×20-30μm in vivo; oval in outline; four right kineties, including two frontoventral kineties and one shortened leftmost right kinety; three left frontal kineties; two ventrally located contractile vacuoles; marine habitat. New Chinese populations of three other species correspond well with previous descriptions, but a well-developed alveolar layer on the cell surface of P. vorticella is reported for the first time. Phylogenetic analyses based on small subunit rRNA gene sequences clustered Dysteria ovalis with Mirodysteria decora, whereas D. semilunaris is grouped with D. lanceolata. Although Phascolodon appeared as sister to Pseudochilodonopsis in the present work, its accurate phylogenetic position is still uncertain because AU test did not reject the possibility that it clustered with Odontochlamys and Chilodonella.
journal_name
Eur J Protistoljournal_title
European journal of protistologyauthors
Pan H,Wang L,Jiang J,Stoeck Tdoi
10.1016/j.ejop.2016.08.005subject
Has Abstractpub_date
2016-10-01 00:00:00pages
134-146eissn
0932-4739issn
1618-0429pii
S0932-4739(16)30065-7journal_volume
56pub_type
杂志文章abstract：:Protistan parasites have an undisputed global health impact. However, outside of a few key exceptions, e.g. the agent of malaria, most of these infectious agents are neglected as important health threats. The Symposium entitled "Free-living amoebae and neglected pathogenic protozoa: health emergency signals?" held at ...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2020.125760
更新日期：2020-11-28 00:00:00
abstract：:This review gives a brief report on some recent advances in the study of molecular biology of ciliate genes. The main emphasis will be put on those results which may contribute to a better understanding of how gene structure and genome organization has evolved in ciliates. New data will be discussed in relation to the...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(11)80384-6
更新日期：1990-08-31 00:00:00
abstract：:During the last decades, the planktonic cyanobacterium Planktothrix rubescens became a dominant primary producer in many deep pre-alpine lakes. While altered physiochemical conditions due to lake warming seem to favour this cyanobacterial species, its dominance is partly attributed to factors conferring grazing resist...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2017.05.009
更新日期：2017-08-01 00:00:00
abstract：:Haploid micronuclei produced by meiosis in Paramecium caudatum are destined either to survive or to degenerate depending upon their position in the cytoplasm. The behavior of the four meiotic division products in living cells and their DNA synthesis patterns were examined to determine whether there were differences be...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(11)80317-2
更新日期：1992-02-21 00:00:00
abstract：:I discuss how different feeding modes and related cellular structures map onto the eukaryote evolutionary tree. Centrally important for understanding eukaryotic cell diversity are Loukozoa: ancestrally biciliate phagotrophic protozoa possessing a posterior cilium and ventral feeding groove into which ciliary currents ...
journal_title：European journal of protistology
pub_type： 杂志文章,评审
doi：10.1016/j.ejop.2012.06.001
更新日期：2013-05-01 00:00:00
abstract：:The marine dinoflagellate Cochlodinium polykrikoides is a harmful algal bloom (HAB) species that severely impacts the environment and causes huge economic losses. Yellow clay (YC), considered to be a non-toxic and naturally-occurring material, represents an important step towards the direct control of HABs. In the pre...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2019.125642
更新日期：2019-10-01 00:00:00
abstract：:Acanthamoebae feed on bacteria but are also frequent hosts of bacterial symbionts. Here, we describe the stable co-occurrence of two symbionts, one affiliated to the genus Parachlamydia and the other to the candidate genus Paracaedibacter (Alphaproteobacteria), within a clinical isolate of Acanthamoeba hatchetti genot...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2016.04.002
更新日期：2016-10-01 00:00:00
abstract：:Noctiluca scintillans (Macartney) Kofoid et Swezy, 1921 is an unarmoured heterotrophic dinoflagellate with a global distribution, and has been considered as one of the ancestral taxa among dinoflagellates. Recently, 18S rDNA, actin, alpha-, beta-tubulin, and Hsp90-based phylogenies have shown the basal position of the...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2009.11.001
更新日期：2010-05-01 00:00:00
abstract：:The present study was undertaken to describe Cryptosporidium spp. infection in tree squirrels from 17 locations in Northern Italy. A total of 357 squirrels were examined, including species native to Europe (Sciurus vulgaris; n=123), and species introduced from North America (Sciurus carolinensis; n=162) and Southeast ...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2017.09.007
更新日期：2017-10-01 00:00:00
abstract：:The ultrastructural cytology and reproduction of the hyperparasitic microsporidium Amphiamblys capitellides (Caullery and Mesnil, 1897) is described. Merogonial reproduction was not observed. The sporogony comprises two sequences: a sac-bound sporogony in close contact with the cytoplasm of the host and a free sporogo...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2006.07.001
更新日期：2006-11-01 00:00:00
abstract：:Lake Tanganyika is world famous for a fauna that is rich in endemic species. On the other hand, it seems to be particularly poor in species of planktonic ciliates. Only the coastal infusorial fauna, for the most part mesopsammic, constitutes an extensive biomass with relatively few species. However, some are character...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(11)80144-6
更新日期：1991-02-22 00:00:00
abstract：:The morphology and morphogenesis of a marine ciliate, Epiclintes auricularis rarisetus nov. sspec., collected from Qingdao, northern China were studied on live and protargol-impregnated specimens. This isolate can be recognized by its elongate, contractile and tripartite body with a size of 200-400 x 20-40microm in vi...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2009.01.005
更新日期：2009-11-01 00:00:00
abstract：:Dileptid and tracheliid ciliates have been traditionally classified within the subclass Haptoria of the class Litostomatea. However, their phylogenetic position among haptorians has been controversial and indicated that they may play a key role in understanding litostomatean evolution. In order to reconstruct the evol...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2011.04.006
更新日期：2011-11-01 00:00:00
abstract：:The apostome ciliate Hyalophysa chattoni, a symbiont of the estuarine grass shrimp Palaemonetes pugio, was tested for its growth and reproductive ability in a wide range of salinities from 0.1 to 55 ppt. Shrimp, with their attached ciliates, were slowly acclimated to different salinities in order to assess protozoan c...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2007.11.002
更新日期：2008-05-01 00:00:00
abstract：:For many years, the genus Massisteria (Cercozoa, Leucodictyida) comprised only one species, M. marina. This small species has a biphasic life cycle and feeds through filose, radiating pseudopodia. It has a distinct swimming form and is regularly detected in association with detritus aggregates. However, environmental ...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2015.05.002
更新日期：2015-08-01 00:00:00
abstract：:Toxoplasma gondii is a zoonotic parasite with a world-wide distribution. House mice (Mus musculus) play an important role as a reservoir host in the parasite life cycle. However, their detection in mouse brain is limited because the host potentially harbours only a few tissue cysts. In order to improve the diagnosis, ...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2013.08.002
更新日期：2014-02-01 00:00:00
abstract：:Apostome ciliates from crayfish and freshwater shrimp in southern and central Alabama were surveyed in this study. Hyalophysa bradburyae was found on both crayfish and shrimp from 16 sites in eight drainages. A new species, Hyalophysa clampi n. sp., was found infesting crayfish at one site and simultaneously infesting...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2011.11.005
更新日期：2012-08-01 00:00:00
abstract：:The free-living ciliates of the order Metopida Jankowski, 1980 are pivotal players in the microbial food web of the sulfuretum, acting as hosts to prokaryotic endo- and ectosymbionts. They are also of interest in the study of the function and evolution of their mitochondrion-related organelle, the hydrogenosome. The t...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2017.07.003
更新日期：2017-10-01 00:00:00
abstract：:Human adenoviruses are responsible for a wide range of clinical infections and are present in aquatic environments, including river, seawater, drinking-water and sewage. Free-living amoebae (Acanthamoeba) in the same environments may internalize them and other microorganisms can act as a reservoir for the internalized...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2016.02.006
更新日期：2016-06-01 00:00:00
abstract：:It is well established that in ombrotrophic bogs, water-table depth (WTD) is the primary environmental control on testate amoeba distribution. However, the environmental controls on testate amoebae in minerotrophic fens are less well known and successional change in their assemblages associated with fen-bog peatland d...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2018.07.003
更新日期：2018-10-01 00:00:00
abstract：:Five scuticociliates, collected from China, were morphologically studied using standard methods One represents a new member of the genus Falcicyclidium, F. citriforme nov. spec., which can be recognised mainly by a combination of the following characters: usually two macronuclear nodules, buccal field about half of bo...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2017.03.003
更新日期：2017-06-01 00:00:00
abstract：:The morphology and infraciliature of two Frontonia species, F. shii spec. nov. and F. paramagna Chen et al., 2014, isolated from a freshwater pond in northeastern China, were investigated using living observation and silver staining methods Frontonia shii spec. nov. is recognized by the combination of the following ch...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2018.01.002
更新日期：2018-04-01 00:00:00
abstract：:The endonucleobiotic bacterium Holospora elegans inhabits the micronucleus of Paramecium caudatum. In this paper the release of the infectious form (IF) of H. elegans from its host is described. During the anaphase of the micronuclear division most of the IFs remain within the connecting piece which, therefore, may be...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(89)80021-5
更新日期：1989-10-27 00:00:00
abstract：:Ookinetes of Leucocytozoon simondi have a Polar Ring Complex (PRC) which is composed of a stout electron-lucent polar ring with about 34 posteriorly extending tines. The latter are subtended by about 76 subpellicular microtubules. A broad collar of electron-dense material is associated with the cytoplasmic surface of ...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(89)80061-6
更新日期：1989-04-14 00:00:00
abstract：:During conjugation, Stylonychia mytilus undergoes repetitive somatic development by reorganizing the cortical ciliature consecutively for three times. The control of these reorganizations by the nucleus was investigated employing amicronucleates generated by microsurgery. When amicronucleates conjugate, they underwent...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(11)80154-9
更新日期：1991-02-22 00:00:00
abstract：:The infraciliature and morphogenesis of Paraholosticha sterkii (Garnjobst, 1934) n. comb. (Basionym: Stylonethes sterkii) are described. Before division a cell encysts and after division each tomite forms an individual cyst within the common one. The ciliates cease to move and the kinetome is resorbed. With the beginn...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(88)80038-5
更新日期：1988-07-01 00:00:00
abstract：:A new ciliate species (Cyclidium porcatum) is the first freshwater anaerobic scuticociliate to be cultured and described. It contains a unique tripartite structure consisting of hydrogenosomes (confirmed by cytochemical staining for hydrogenase), interspersed with methanogens (confirmed by auto fluorescence and in sit...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(11)80281-6
更新日期：1993-05-28 00:00:00
abstract：:Prorodon spirogyrophagus nov. spec. is described by observations on living and silver-stained specimens. Important morphometric data are presented and the feeding habits are described. The new species is characterized by a body size of about 450 × 200 μm, numerous independently functioning contractile vacuoles each wi...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(89)80009-4
更新日期：1989-07-07 00:00:00
abstract：:A new species of unicellular opisthokont protist, Nuclearia thermophila sp. nov., was isolated from the warm spring water of Yunoko Lake, Japan, and has been described using light and electron microscopy. It exists as a spherical floating form and a flattened amoeboid form showing various shapes. The cells occasionall...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2008.09.004
更新日期：2009-05-01 00:00:00
abstract：:Microbial eukaryotes living in low oxygen environments often have novel physiological and morphological features that facilitate symbiotic relationships with bacteria and other means for acquiring nutrients. Comparative studies of these features provide evidence for phylogenetic relationships and evolutionary history....
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2012.07.001
更新日期：2013-01-01 00:00:00
