Archiv für Protistenkunde最新文献

{"title":"Silica-scaled Chrysophyceae and Synurophyceae from Madagascar","authors":"Peer Hansen","doi":"10.1016/S0003-9365(96)80030-3","DOIUrl":"10.1016/S0003-9365(96)80030-3","url":null,"abstract":"<div><p>This paper resumes the first electron microscopy investigation regarding the classes Synurophyceae and Chrysophyceae in Madagascar. 42 taxa (38 new to the country) of the genera Synura, Chrysodidymus, Mallomonas, Chrysosphaerella, Spiniferomonas and Paraphysomonas are illustrated and the morphology of their silica structures examined. Biogeographical problems are discussed, especially emphasizing differences between the 12 regions, here representing the country. While the central plateau has a largely cosmopolitan species composition, the coastal and lowland floras have many tropical components. The SW coast and the island Nosy Be are both species poor.</p></div>","PeriodicalId":100118,"journal":{"name":"Archiv für Protistenkunde","volume":"147 2","pages":"Pages 145-172"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0003-9365(96)80030-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79414624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vahlkampfia anaerobica n. sp. and Vannella peregrinia n. sp. (Rhizopoda) - Anaerobic Amoebae from a Marine Sediment","authors":"A.V. Smirnov ,&nbsp;T. Fenchel","doi":"10.1016/S0003-9365(96)80033-9","DOIUrl":"10.1016/S0003-9365(96)80033-9","url":null,"abstract":"<div><p>Two species of amoebae, capable of living and multiplying in the absence of oxygen, were isolated from anaerobic marine sediments. <em>Vahlkampfia anaerobica</em> does not have typical mitochondria (but has organelles covered by a double membrane) and it harbours endocytic bacteria. The nuclear envelope of <em>V. anaerobica</em> is associated with the cisternae of the rough endoplasmic reticulum which is a remarkable feature of this species. <em>Vannella peregrinia</em> has double membraned organelles with internal tubular structures, which morphologically resemble mitochondria. Its cell coat consists of glycostyles, which differ in dimensions from those of other <em>Vannella</em> spp.; it needs further investigation.</p></div>","PeriodicalId":100118,"journal":{"name":"Archiv für Protistenkunde","volume":"147 2","pages":"Pages 189-198"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0003-9365(96)80033-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73921368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revision of Genera and Species Composition of Lower Centroheliozoa. II. Family Raphidiophryidae n. tam.","authors":"K.A. Mikrjukov","doi":"10.1016/S0003-9365(96)80035-2","DOIUrl":"10.1016/S0003-9365(96)80035-2","url":null,"abstract":"<div><p>A revision of the genus <em>Raphidiophrys</em> ARCHER on the basis of the scale structure is performed. Two new genera are proposed. <em>Parasphaerastrum</em> gen. nov. includes a single species, <em>P. marina</em> (OSTENFELD) emend. MIKRJUKOV, surrounded by the envelope of rod-like tangential siliceous spicules. <em>Polyplacocystis</em> gen. nov. includes five species, two with reticulate [P. ambigua (PENARD) and P. symmetrica (PENARD)] and three with smooth [P. <em>pallida</em> (SCHULZE), <em>P. marginata</em> (SIEMENSMA) and <em>P. pedunculata</em> (MIKRJUKOV)] surface of scales. Six other EM-studied species [<em>R. capitata</em> SIEMENSMA et ROIJACKERS, <em>R. elegans</em> HERTWIG et LESSER, <em>R. intermedia</em> PENARD, <em>R. minuta</em> NICHOLLS, <em>R. Viridis</em> ARCHER and <em>R. ovalis</em> (Dü;RRSCHMIDT)], which have complex scales formed by two parallel plates and internal septae between them, are retained in the genus Raphidiophrys ARCHER. Only three species with plate-scales identical to those in Polyplacocystis (<em>R. lemani</em> PENARD, <em>R. tubifera</em> PENARD, and <em>R. glabra</em> NICHOLLS et 0üRRSCHMIDT) stay in the genus Raphidocystis with the emended diagnosis given by NICHOLLS &amp; DüRRSCHMIDT (1985). The new family Raphidiophryidae is proposed including the genera <em>Parasphaerastrum</em>, <em>Polyplacocystis</em>, <em>Raphidiophrys</em> and <em>Raphidocystis</em>. A key for the species of these genera is proposed.</p></div>","PeriodicalId":100118,"journal":{"name":"Archiv für Protistenkunde","volume":"147 2","pages":"Pages 205-212"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0003-9365(96)80035-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88133144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Updating the Trachelocercids (Ciliophora, Karyorelictea)IIIRedefinition of the Genera Trachelocerca EHRENBERG and Tracheloraphis DRAGESCO, and Evolution in Trachelocercid Ciliates","authors":"Wilhelm Foissner ,&nbsp;Jean Dragesco","doi":"10.1016/S0003-9365(96)80007-8","DOIUrl":"10.1016/S0003-9365(96)80007-8","url":null,"abstract":"<div><p>The morphology and infraciliature of <em>Trachelocerca sagitta</em> (MÜLLER, 1786) EHRENBERG, 1840, T<em>ditis</em> (WRIGHT, 1982) novcomb., <em>Tracheloraphis phoenicopterus</em> (COHN, 1866) DRAGESCO, 1960, <em>Taragoi</em> (DRAGESCO, 1954) DRAGESCO, 1960, T<em>longicollis</em> (DRAGESCO, 1960) novcomb., and <em>Toligostriata</em> (RAIKOV, 1962) novcombwere studied in live and protargol impregnated specimens, as well as with the scanning electron microscopeNeotype slides with protargol impregnated specimens of each species have been deposited in (LI)The somatic and oral infraciliature of the species investigated basically agrees with that of <em>Trachelolophos</em> and <em>Prototrachelocerca</em>Specifically, all have a glabrous stripe bordered by a peculiar (bristle) kinety composed of dikinetids having a unique ciliation and flbrillar systemFurthermore, all trachelocercids have specialized structures at the anterior end of the body, highly reminiscent of a prostome and/or gymnostome oral apparatusSome of the species investigated represent the types of the genera <em>Trachelocerca</em> EHRENBERG, 1840 (<em>Tsagitta</em>), Tracheloraphis DRAGESCO,1960 (<em>Tphoenicopterus</em>), and <em>Trachelonema</em> DRAGESCO, 1960 (<em>Tlongicollis</em>), three taxa often confused due to the vague original diagnosesOur study provides accurate characteristics for distinguishing Tracheloraphis (with brosse) from <em>Trachelocerca</em> (without brosse), while the genus <em>Trachelonema</em> is synonymized with <em>Tracheloraphis</em> because of distinct similarities in the infraciliatures of the type speciesAccordingly, three well-defined genera are recognized in the family Trachelocercidae KENT, 1881: <em>Trachelocerca</em> EHRENBERG, 1840, <em>Tracheloraphis</em> DRAGESCO, 1960, and <em>Trachelolophos</em> FOISSNER &amp; DRAGESCO, 1996The order Trachelocercida JANKOWSKI, 1978 is redefined using the glabrous stripe, the bristle kinety, and the apical location of the oral apparatus as unique character constellationHENNIG's cladistic method suggests that the Trachelocercidae evolved from the Prototrachelocercidae and both have a common ancestor with the LoxodidaSome minor taxonomic changes (new combinations) and many nomenclatural emendations have been made.</p></div>","PeriodicalId":100118,"journal":{"name":"Archiv für Protistenkunde","volume":"147 1","pages":"Pages 43-91"},"PeriodicalIF":0.0,"publicationDate":"1996-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0003-9365(96)80007-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81500863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"L. Krienitz","doi":"10.1016/S0003-9365(96)80003-0","DOIUrl":"10.1016/S0003-9365(96)80003-0","url":null,"abstract":"","PeriodicalId":100118,"journal":{"name":"Archiv für Protistenkunde","volume":"147 1","pages":"Page 10"},"PeriodicalIF":0.0,"publicationDate":"1996-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0003-9365(96)80003-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87124586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New Species of Pigmented Flagellates from Southeastern Brazil","authors":"Mariângela Menezes","doi":"10.1016/S0003-9365(96)80009-1","DOIUrl":"10.1016/S0003-9365(96)80009-1","url":null,"abstract":"<div><p>Three pigmented flagellates: <em>Gloeomonas mamillosa, Lobomonas tubulata</em> (Chlamydomonadales, Chlorophyceae) and <em>Strombomonas quadrangularis</em> (Euglenales, Euglenophyceae) are described as new taxa from material collected in two freshwater bodies located in the Municipality of Rio de Janeiro, Rio de Janeiro State, southeastern Brazil.</p></div>","PeriodicalId":100118,"journal":{"name":"Archiv für Protistenkunde","volume":"147 1","pages":"Pages 101-105"},"PeriodicalIF":0.0,"publicationDate":"1996-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0003-9365(96)80009-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77740306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Preliminary Study of NE Greenland Shallow Meltwater Ponds with Particular Emphasis on Loricate and Scale-covered Forms (Choanoflagellida, Chrysophyceae sensu lato, Synurophyceae, Heliozoea), Including the Descriptions of Epipyxis thamnoides spnovand Pseudokephyrion poculiforme spnov(Chrysophyceae)","authors":"Johanna IkÄvalko ,&nbsp;Helge Abildhauge Thomsen ,&nbsp;Marina Carstens","doi":"10.1016/S0003-9365(96)80006-6","DOIUrl":"10.1016/S0003-9365(96)80006-6","url":null,"abstract":"<div><p>The biodiversity of five shallow freshwater and slightly brackish ponds (North East Greenland; 79-81 ° N) has been studied with particular emphasis on taxonomical and ecological aspects of loricate and scale-covered forms, i.echoanoflagellates, chrysophytes and heliozoansThe material was collected in July 1993 as part of the IAAP Northeast Water (NEW) Polynya programme and represents the northernmost freshwater and brackish localities analyzed using electron microscopical techniquesMorphometric data and physical, chemical and biological parameters (pH, temperature, salinity, nutrients, chlorophyll-á) are provided for all ponds sampledThe light- and electron microscopical examination of samples revealed 2 choanoflagellates, 14 chrysophytes and 7 heliozoan taxaSeven species are recorded from Greenland for the first time and two species are considered new to science, viz<em>Epipyxis thamnoides</em> and <em>Pseudokephyrion poculiforme</em>A crucial difference was observed on the one hand between the single land pond (location 33) characterized by high diversity and high biomass, and on the other the glacier and the ice floe melt ponds characterized by low diversity and low biomassBiogeographically the community sampled displays significant similarities with localities previously investigated within the Greenland and northern Canadian region.</p></div>","PeriodicalId":100118,"journal":{"name":"Archiv für Protistenkunde","volume":"147 1","pages":"Pages 29-42"},"PeriodicalIF":0.0,"publicationDate":"1996-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0003-9365(96)80006-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75645400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pseudaphelidium drebesii, genet specnov(incerta sedis), a Parasite of the Marine Centric Diatom Thalassiosira punctigera","authors":"Michael Schweikert ,&nbsp;Eberhard Schnepf","doi":"10.1016/S0003-9365(96)80004-2","DOIUrl":"10.1016/S0003-9365(96)80004-2","url":null,"abstract":"<div><p><em>Pseudaphelidium drebesii</em> genet specnovis a parasite of the centric marine diatom <em>Thalassiosira punctigera</em>The motile stage consists of a zoospore with a single opisthokont flagellumIt attaches to a host cell, encysts, penetrates the frustule and develops into a plasmodiumThe plasmodium phagocytizes portions of host cytoplasm which are included in a single big digestion vacuoleAt the end of the trophic phase the plasmodium is a hollow sphere filling the frustule completelyIt cleaves to form ameboid cells which are slowly motile and finally encystThe cysts release 4, sometimes less, zoosporesDiagnoses of genus and species are given, and the uncertain taxonomic position of <em>Pseudaphelidium</em> is discussed.</p></div>","PeriodicalId":100118,"journal":{"name":"Archiv für Protistenkunde","volume":"147 1","pages":"Pages 11-17"},"PeriodicalIF":0.0,"publicationDate":"1996-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0003-9365(96)80004-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78565325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Four New Myxobolus spp(Myxosporea: Myxobolidae) from Iranian Barboid Fishes","authors":"K. Molnár ,&nbsp;M. Masoumian ,&nbsp;S. Abasi","doi":"10.1016/S0003-9365(96)80011-X","DOIUrl":"10.1016/S0003-9365(96)80011-X","url":null,"abstract":"<div><p>Four new <em>Myxobolus</em> species are described from cyprinid fishes of the Mesopotamian Fauna Region in IranEach species infects a specific site of their fish hosts<em>Myxobolus iranicus</em> spnforms large plasmodia in the spleen of <em>Barbus sharpeyi</em> and <em>Bluteus.</em> The plasmodia of Mmesopotamiae spnare located in the fins of Bgrypus, Bluteus and BrajanorumThe plasmodia of Mshadganispndevelop on the cartilageous rays of the gill filament in Brajanorum, while Msharpeyi spnforms plasmodia inside the cartilageous gill arches of <em>Bsharpeyi.</em></p></div>","PeriodicalId":100118,"journal":{"name":"Archiv für Protistenkunde","volume":"147 1","pages":"Pages 115-123"},"PeriodicalIF":0.0,"publicationDate":"1996-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0003-9365(96)80011-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76125715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revision of the Genera and Species Composition of Lower Centroheliozoa IFamily Heterophryidae POCHE","authors":"K.A. Mikrjukov","doi":"10.1016/S0003-9365(96)80010-8","DOIUrl":"10.1016/S0003-9365(96)80010-8","url":null,"abstract":"<div><p>A revision of the centroheliozoan family Heterophryidae on the base of the external envelope structure is performedThe genus <em>Cienkowskya</em> is shown to have no centroheliozoan affinities and is transferred from this group; it is a heliozoa <em>incertae sedis</em>The genus <em>Heterophrys</em> is shown to be heterogeneous<em>Hfockii</em> with a tangential orientation of organic spicules is transferred to the genus <em>Sphaerastrum</em> GREEFF, emend., while the other species with radial spicules remain in the genus <em>Heterophrys</em>A new species <em>Hfebvre-chevalierae</em> is describedEmended diagnoses for genera <em>Heterophrys</em> and <em>Sphaerastrum</em> and species H<em>myriopoda, Hmarina</em> and <em>Sfockii</em> and a key for the family Heterophryidae are suggested.</p></div>","PeriodicalId":100118,"journal":{"name":"Archiv für Protistenkunde","volume":"147 1","pages":"Pages 107-113"},"PeriodicalIF":0.0,"publicationDate":"1996-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0003-9365(96)80010-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78083964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}