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 the inner double membrane complex of the pellicle. Additional particulate material of varying density occupies the space between tines and the dense material associated with the pellicle. A conoid and two preconoidal rings are present. We conclude that a PRC and a typical apicomplexan conoid, although often unrecognized, occur in ookinetes of all the haemosporidians examined thusfar.
journal_name
Eur J Protistoljournal_title
European journal of protistologyauthors
Brockley Paterson W,Desser SSdoi
10.1016/S0932-4739(89)80061-6subject
Has Abstractpub_date
1989-04-14 00:00:00pages
244-51issue
3eissn
0932-4739issn
1618-0429pii
S0932-4739(89)80061-6journal_volume
24pub_type
杂志文章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::Cell division in Prorocentrum micans was studied with TEM, SEM and with fluorescence microscope techniques to visualize cytoskeletal structures. The cleavage furrow consists of the plasma membrane and two valvar vesicles. Its leading edge is lined with actin filaments. The completion of cytokinesis (like in some other...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/S0932-4739(11)80175-6
更新日期:1990-03-09 00:00:00
abstract::Expression of surface antigens is usually mutually exclusive, meaning that only one protein is present on the cell surface. With the RNAi feeding technology we induce serotype shifts in Paramecium tetraurelia which are demonstrated to be incomplete, meaning that the cells remain in a shifting state. The coexpression o...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2005.09.003
更新日期:2006-03-01 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::Pterospora demodendrion sp.nov., an acephaline eugregarine (Eugregarinorida, Urosporidae) from the coelom of Axiothella mucosa (Polychaeta, Maldanidae) is described. The gamont averages 277 × 139 μm and possesses 20-36 posterior prolongations. Gametocysts average 412 × 287 μm; without polar funneled openings. Oocysts ...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/S0932-4739(11)80427-X
更新日期:1991-03-28 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::The species Leptomyxa flabellata was described by Goodey in 1915 and re-isolated by Pussard and Pons in 1976. It seems that it was never seen (or never recognized) again since that time. The strain designated as "Leptomyxa flabellata CCAP 1546/2" was studied by Cann in 1984, however the quality of the electron microsc...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2017.12.001
更新日期:2018-02-01 00:00:00
abstract::Neoparamoeba perurans is the aetiological agent of amoebic gill disease (AGD) in salmonids, however multiple other amoeba species colonise the gills and their role in AGD is unknown. Taxonomic assessments of these accompanying amoebae on AGD-affected salmon have previously been based on gross morphology alone. The aim...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2018.10.003
更新日期:2019-02-01 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 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 combin...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2016.08.005
更新日期:2016-10-01 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::The morphology, infraciliature and silverline system of Trachelocerca trepida Kahl, 1928 has been reinvestigated. The species was found in marine water (Yellow Sea) near Shanghai, Eastchina. Stained specimens (protargol) are characterized morphometrically. The shape of the extrusomes (toxicysts) and the structure of o...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/S0932-4739(11)80110-0
更新日期:1990-10-19 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::We have characterized the intracellular development and ultrastructure of a novel parasite that infected the marine benthic dinoflagellate Prorocentrum fukuyoi. The parasite possessed a combination of features described for perkinsids and syndineans, and also possessed novel characters associated with its parasitic li...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2007.08.004
更新日期:2008-02-01 00:00:00
abstract::The living morphology, infraciliature and morphogenesis of a new ciliate, Urosomoida paragiliformis n. sp., collected from saline soil in Weinan, China, were studied in vivo and after protargol staining. Urosomoida paragiliformis n. sp. is characterized as follows: body elongate-elliptical with no tail, flexible and s...
journal_title:European journal of protistology
pub_type: 杂志文章,评审
doi:10.1016/j.ejop.2016.07.005
更新日期:2016-10-01 00:00:00
abstract::A strain of the free-living flagellate Dimastigella trypaniformis Sandon was isolated from the gut contents of the Australian termite Mastotermes darwiniensis Froggatt. The fine structure of the isolate (Ulm strain) was compared with a strain isolated from soil in Scotland (Glasgow strain). The biflagellated trophozoi...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/S0932-4739(11)80404-9
更新日期:1993-11-12 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::We collected Rimaleptus binucleatus from soil in the surroundings of the town of Ulsan, South Korea. Its morphology and 18S rRNA gene were studied using standard methods. This possibly widely distributed species is characterized by: (i) a size of about 170-400×20-65μm; (ii) a narrowly to cylindrically dileptid body wi...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2014.07.003
更新日期:2014-10-01 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::Cotterillia bromelicola nov. gen., nov. spec. was discovered in the tanks of the Mexican bromeliad Tillandsia heterophylla. Its morphology, ontogenesis, and 18S rDNA were studied with standard methods. Cotterillia has many cirral rows on both sides of the body. Uniquely, and thus used to diagnose the new genus Cotteri...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2010.08.003
更新日期:2011-01-01 00:00:00
abstract::The living morphology, infraciliature and silverline system of two small marine Euplotes species, E. orientalis spec. nov. and E. raikoviAgamaliev, 1966, isolated from a sandy beach near Qingdao, China, were investigated. Euplotes orientalis is characterized by a combination of features including their small size (35-...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2009.11.003
更新日期:2010-05-01 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::The Javan ferret-badger Melogale orientalis (Carnivora: Mustelidae: Helictidinae) is a small carnivore endemic to Indonesia. In the family Mustelidae, 10 Eimeria, 12 Cystoisopora, one Isospora, and one Hammondia species are known, but no eimeriid coccidia has been yet described in the subfamily Helictinidae (ferret ba...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2019.125668
更新日期:2020-04-01 00:00:00
abstract::The morphology and the infraciliature of Pseudokeronopsis rubra [7, 10, 11], P. carnea [8] nov. comb, and P. flava [8] nov. comb, are redescribed using protargol silver staining, biometry, and chromatography. These species differ in the colour and composition of the pigment granules, the length of the midventral rows,...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/S0932-4739(87)80010-X
更新日期:1987-11-01 00:00:00
abstract::In a study on ciliate diversity, we discovered the new hypotrich species, Gonostomum jangbogoensis n. sp., in freshwater from Terra Nova Bay, Victoria Land, southeast Antarctica. We describe its morphology and morphogenesis using standard methods, and the SSU rRNA gene phylogeny is provided as well. Morphology of Gono...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2019.125669
更新日期:2020-04-01 00:00:00
abstract::Since its description 35 years ago from Quebec, Canada, the poorly known monospecific testate rhizopod genus Puytoracia (type species, Puytoracia bergeri) has been reported only from the Himalayan region of Nepal. This species was recently found at 13 locations in Ontario, Canada, and the range of form variation of th...
journal_title:European journal of protistology
pub_type: 杂志文章
doi:10.1016/j.ejop.2006.04.002
更新日期:2006-09-01 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::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::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::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