Abstract：
:The effects of 0.2-2.0 mM PtCl(4) have been investigated, the purpose was to test whether the compound would affect Tetrahymena in a manner similar to that of cis-dichlorodiammine-platinum(II), or cisplatin, which in 0.83 mM inhibits cell proliferation for 24 h and induces diminution of the inner mitochondrial membrane, as reported recently. During the first hour, the rate of cell proliferation was unaffected by platinic chloride; this period was followed by a lag of 1-1.5 h in 0.5-0.83 mM, of 5 h in 1.0 mM, and of about 24 h in 1.5-2.0 mM PtCl(4) before proliferation resumed at a decreased, but constant, rate. At the low concentrations, the rate of proliferation corresponded to half the rate of control cells, whereas only 1.00 and 0.56 cell doubling was completed after 24 h in 1.5 and 2.0 mM, respectively, and a large percentage of the cells were monsters. The normal cell shape was restored within 48 h. The rate of endocytosis was affected dose dependently, but not blocked completely in 0.5-2.0 mM PtCl(4). All treated cells contained small refractive granules, accumulating with time in growth-inhibited cells but remaining at a constant level in cells capable of proliferation. These granules are probably connected with cell detoxification as proposed previously. In contrast to cisplatin, PtCl(4) did not induce loss of the inner mitochondrial membrane, even after 24 h in 2.0 mM.
journal_name
Eur J Protistoljournal_title
European journal of protistologyauthors
Nilsson JRdoi
10.1016/S0932-4739(11)80044-1subject
Has Abstractpub_date
1992-05-22 00:00:00pages
153-62issue
2eissn
0932-4739issn
1618-0429pii
S0932-4739(11)80044-1journal_volume
28pub_type
杂志文章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：:Mitotis in the choanoflagellate Monosiga sp. has been studied by electron microscopy for the first time based on serial sections of metaphase and anaphase. The dense metaphase plate is formed by chromosomes at the centre of the nucleus. Spindle poles are located at the opposite sides of this plate. The nuclear envelop...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(11)80292-0
更新日期：1993-02-19 00:00:00
abstract：:Gravitaxis of Paramecium at different oxygen concentrations is analyzed by means of a computer controlled image-analysis system. The gravitactic response depends on the oxygen tension: at low-oxic conditions Paramecium shows a precise negative gravitaxis which changes into a random distribution if the oxygen tension i...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(11)80065-9
更新日期：1991-09-09 00:00:00
abstract：:Licnophora chattoni, found in association with Zyzzyzus warreni, a tubulariid hydroid epizoic in sponges from São Sebastião (SP, Brazil), is redescribed and illustrated using light and electron microscopy. The ciliate has a flexible, transparent body formed by an oval anterior region linked to the posterior basal disc...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2011.07.004
更新日期：2012-01-01 00:00:00
abstract：:Light- and electron microscopical observations on the morphology of the nassulid ciliate Furgasonia blochmanni show that it has somatic kinetids which reveal the nassulid pattern of somatic mono- and dikinetids with a 'B-cartwheel' in the lumen of the kinetosome and paired alveolocysts as regular components of the kin...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(88)80012-9
更新日期：1988-12-01 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：:A new colpodid ciliate, Bresslauides pratensis n. sp., was discovered in soil from a meadow field in Turkey. Its morphology was investigated using live observation, protargol impregnation, silver nitrate impregnation, and scanning electron microscopy. The new species differs from the congeners by the following combina...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2012.01.006
更新日期：2012-08-01 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：:In the absence of distinct morphological characteristics, knowledge of genetic relationships within and between protist parasite species is important for determining reservoir hosts and understanding the biology of the causative agents of emerging diseases. The genus Hematodinium is a member of Syndinea, an ubiquitous...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2009.10.002
更新日期：2010-01-01 00:00:00
abstract：:This paper summarises the Symposium 'Concepts in Protistology', during the VI European Congress of Protistology, Berlin, 25-29 July 2011. There is an increasing focus on cataloguing the number of species on earth, species barcoding initiatives, and the increasing need to reconcile molecular with morphological data in ...
journal_title：European journal of protistology
pub_type：
doi：10.1016/j.ejop.2011.11.004
更新日期：2012-05-01 00:00:00
abstract：:A new Naegleria species, N. andersoni, is described that occurs world-wide. The new species consists of two subspecies and can be distinguished from previously described species on the basis of antigenic, isoenzyme and restriction enzyme DNA fragment differences and in maximum growth temperature tolerated. N. anderson...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(88)80022-1
更新日期：1988-10-01 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：:More than 1000 secretory organelles (trichocysts) are docked at the plasma membrane of Paramecium cells. After stimulation, the trichocyst contents are expelled as needle-like structures in an exocytotic response. Neither the function nor the natural stimulus of trichocyst exocytosis are known in this well established...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(11)80256-7
更新日期：1991-11-29 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：: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：:Species in the genera Hexasterias and Halodinium have been recorded over the last decades as acritarchs in palynological and/or plankton studies. In paleoenvironmental studies, these resting stages are often interpreted as indicators of freshwater input. The biological affinity of these genera has never been definitel...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2018.09.002
更新日期：2018-10-01 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：:The morphology, ontogenesis, conjugation, and phylogenetic position of Metopus boletus nov. spec. were studied using live observation, various silver impregnation methods, scanning electron microscopy, morphometry, and the 18S rRNA gene sequence. The new species is outstanding in having a mushroom-like appearance; a g...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2019.04.002
更新日期：2019-06-01 00:00:00
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：: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：: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：:Hyalophysa clampi Browning and Landers, 2012 was reexamined to determine all stages in the life cycle of this symbiotic ciliate. The cell feeds as a normal exuviotroph within the exoskeleton of its molted crayfish host but does not encyst following the trophont stage. Trophonts transform into swimming tomont stages, w...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2019.125654
更新日期：2020-02-01 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：:We report the use of nile red as a rapid and inexpensive method to estimate cellular lipids in three species of Paramecium and in Tetrahymena by the direct application of the dye to living or fixed cells without extraction and purification. Qualitative estimates of the relative changes in the lipid content of cells of...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/S0932-4739(11)80129-X
更新日期：1990-06-29 00:00:00
abstract：:Copidognathus nautilei Bartsch, 1997, from a hydrothermal vent field of the Mid-Atlantic Ridge at about 13 degrees N, 45 degrees W and 4090 m depth, was infested with the suctorian Corynophrya abyssalis n. sp., with up to 58 epizoans per mite. The new suctorian has a sacciform body with seven longitudinal ribs, a comp...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2010.02.001
更新日期：2010-08-01 00:00:00
abstract：:The gene coding for the small subunit ribosomal RNA molecule was sequenced in three marine spirotrichs: Pseudoamphisiella lacazei, P. alveolata, and Parabirojimia similis, the systematic positions of which remain unclear in spite of recent progress. Phylogenetic trees were constructed by means of neighbor-joining (NJ)...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2007.08.002
更新日期：2008-02-01 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：:The morphology and infraciliature of two pleurostomatid ciliates, Amphileptus aeschtae nov. spec. and Amphileptus eigneri nov. spec., collected from shrimp-culturing ponds of the Bohai Sea, China, were investigated using live observations and the protargol impregnation method. The new species A. aeschtae is identified...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2006.10.002
更新日期：2007-06-01 00:00:00
abstract：:We observed reproductive swarmer cells of the nassellarian and spumellarian polycystine radiolarians Didymocyrtis ceratospyris, Pterocanium praetextum, Tetrapyle sp., and Triastrum aurivillii using light, scanning and transmission electron microscopy. The swarmer cells had subspherical to ovoid or spindle shapes with ...
journal_title：European journal of protistology
pub_type： 杂志文章
doi：10.1016/j.ejop.2016.02.007
更新日期：2016-06-01 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
