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Pterocystis caudata sp. n. – the new species of centrohelid heliozoans (Pterocystidae, Pterocystida, Centroplasthelida) from the Bay of Villefranche, France 尾状Pterocystis caudata sp.n——法国维勒弗兰切湾的中心体日虫（Pterocytidae，Pterocyticida，Centroplastida）新种
Protistology Pub Date : 2023-01-01 DOI: 10.21685/1680-0826-2023-17-2-1
I. Udalov, A. Gavrilov, A. Kudryavtsev, E. Volkova, Vasily V. Zlatogursky
{"title":"Pterocystis caudata sp. n. – the new species of centrohelid heliozoans (Pterocystidae, Pterocystida, Centroplasthelida) from the Bay of Villefranche, France","authors":"I. Udalov, A. Gavrilov, A. Kudryavtsev, E. Volkova, Vasily V. Zlatogursky","doi":"10.21685/1680-0826-2023-17-2-1","DOIUrl":"https://doi.org/10.21685/1680-0826-2023-17-2-1","url":null,"abstract":"A new species of centrohelid heliozoans Pterocystis caudata sp. n. from the Bay of Villefranche (France) was studied with light and electron microscopy. The cell diameter is 7.6–19.0 (av. 12.4) µm. P. caudata has scales of two distinct types. Plate scales (2.08–3.48 (av. 2.6) × 1.07–1.65 (av. 1.3) µm) are flat, oval, with parallel edges and axial thickening. Spine scales (2.47–7.1 (av. 4.6) µm) with a funnel-shaped base, which is indistinctly continuous with a shaft. The shaft demonstrates gradual levels of reduction; in some scales it is completely absent. The surface of the spine scales is smooth, ornamented with few slits at the base of the shaft and on the surface of the funnel and has a thin marginal border. The cells are floating or attached to the substratum, sometimes in aggregates of 2–3 cells. The species diversity of Pterocystis spp. with leaf-shaped and scoop-shaped spine scales is discussed.","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67895421","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}
引用次数: 0
Reassessing the phylogenetic position of the genus Kelleromyxa (Myxomycetes = Myxogastrea) using genome skimming data 利用基因组略读数据重新评估Kelleromyxa属(黏菌属= Myxogastrea)的系统发育位置
Protistology Pub Date : 2023-01-01 DOI: 10.21685/1680-0826-2023-17-2-2
I. Prikhodko, O. Shchepin, Y. Novozhilov, V. Gmoshinskiy, M. Schnittler
{"title":"Reassessing the phylogenetic position of the genus Kelleromyxa (Myxomycetes = Myxogastrea) using genome skimming data","authors":"I. Prikhodko, O. Shchepin, Y. Novozhilov, V. Gmoshinskiy, M. Schnittler","doi":"10.21685/1680-0826-2023-17-2-2","DOIUrl":"https://doi.org/10.21685/1680-0826-2023-17-2-2","url":null,"abstract":"","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67895681","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}
引用次数: 0
Transcriptome of Lafontella sp., an obscure relative of Phytomonas and Herpetomonas 植物单胞菌和疱疹单胞菌的一个不知名的亲戚拉丰菌的转录组
Protistology Pub Date : 2023-01-01 DOI: 10.21685/1680-0826-2023-17-2-6
Amanda T. S. Albanaz, A. Butenko, A. Kostygov, J. Votýpka, V. Yurchenko
{"title":"Transcriptome of Lafontella sp., an obscure relative of Phytomonas and Herpetomonas","authors":"Amanda T. S. Albanaz, A. Butenko, A. Kostygov, J. Votýpka, V. Yurchenko","doi":"10.21685/1680-0826-2023-17-2-6","DOIUrl":"https://doi.org/10.21685/1680-0826-2023-17-2-6","url":null,"abstract":"","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67896362","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}
引用次数: 0
Ciliates from faeces of kiang Equus kiang kept in a zoo, with analysis of interspecific differences of 18S sequences among trichostomatids (Litostomatea) 江马粪便纤毛虫的种间差异及毛口虫18S序列的分析
Protistology Pub Date : 2023-01-01 DOI: 10.21685/1680-0826-2023-17-3-3
Olga Kornilova, Maria Skazina, Maria Belokon, Natalia Egorova, Ludmila Chistyakova
{"title":"Ciliates from faeces of kiang Equus kiang kept in a zoo, with analysis of interspecific differences of 18S sequences among trichostomatids (Litostomatea)","authors":"Olga Kornilova, Maria Skazina, Maria Belokon, Natalia Egorova, Ludmila Chistyakova","doi":"10.21685/1680-0826-2023-17-3-3","DOIUrl":"https://doi.org/10.21685/1680-0826-2023-17-3-3","url":null,"abstract":"","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135711227","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}
引用次数: 0
A marine Paramecium species – does it exist? 一种海洋草履虫——它存在吗?
Protistology Pub Date : 2023-01-01 DOI: 10.21685/1680-0826-2023-17-3-2
Sergei I. Fokin
{"title":"A marine Paramecium species – does it exist?","authors":"Sergei I. Fokin","doi":"10.21685/1680-0826-2023-17-3-2","DOIUrl":"https://doi.org/10.21685/1680-0826-2023-17-3-2","url":null,"abstract":"","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135711234","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}
引用次数: 0
Copromyxa flindersi sp. nov. (Amoebozoa, Euamoebida) shows morphological and molecular diversity within Copromyxa Zopf, 1885 Copromyxa flindersi sp. 11 .(阿米巴虫目，真阿米巴虫目)在Copromyxa Zopf, 1885中显示了形态和分子的多样性
Protistology Pub Date : 2023-01-01 DOI: 10.21685/1680-0826-2023-17-2-4
A. Kudryavtsev
{"title":"Copromyxa flindersi sp. nov. (Amoebozoa, Euamoebida) shows morphological and molecular diversity within Copromyxa Zopf, 1885","authors":"A. Kudryavtsev","doi":"10.21685/1680-0826-2023-17-2-4","DOIUrl":"https://doi.org/10.21685/1680-0826-2023-17-2-4","url":null,"abstract":"","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67896884","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}
引用次数: 0
Earl Weidner (1935-2022), the pioneer of research on physiology and biochemistry of microsporidia 厄尔·魏德纳(Earl Weidner, 1935-2022)，微孢子虫生理生化研究的先驱
Protistology Pub Date : 2023-01-01 DOI: 10.21685/1680-0826-2022-17-3-6
Yuliya Y. Sokolova
{"title":"Earl Weidner (1935-2022), the pioneer of research on physiology and biochemistry of microsporidia","authors":"Yuliya Y. Sokolova","doi":"10.21685/1680-0826-2022-17-3-6","DOIUrl":"https://doi.org/10.21685/1680-0826-2022-17-3-6","url":null,"abstract":"","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135712275","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}
引用次数: 0
Observations on some planktonic dinophysoid dinoflagellates (Dinophysales, Dinophyta) from the Mexican Pacific, including the description of a new species, Dinofurcula pseudoultima sp. nov., and taxonomic and distribution notes about the genera Latifascia and Triposolenia 墨西哥太平洋几种浮游甲藻纲鞭毛藻的观察，包括一新种Dinofurcula pseudooultima sp. nov.的描述，以及Latifascia属和Triposolenia属的分类和分布记录
Protistology Pub Date : 2023-01-01 DOI: 10.21685/1680-0826-2023-17-1-1
D. Hernández-Becerril, Pamela Meza-García, Ana M. Villarreal-Martínez, Tania M. García-Anaya, Erandi D. Vázquez-Montes, K. Esqueda-Lara, Jovanny Arana-García
{"title":"Observations on some planktonic dinophysoid dinoflagellates (Dinophysales, Dinophyta) from the Mexican Pacific, including the description of a new species, Dinofurcula pseudoultima sp. nov., and taxonomic and distribution notes about the genera Latifascia and Triposolenia","authors":"D. Hernández-Becerril, Pamela Meza-García, Ana M. Villarreal-Martínez, Tania M. García-Anaya, Erandi D. Vázquez-Montes, K. Esqueda-Lara, Jovanny Arana-García","doi":"10.21685/1680-0826-2023-17-1-1","DOIUrl":"https://doi.org/10.21685/1680-0826-2023-17-1-1","url":null,"abstract":"","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67894627","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}
引用次数: 0
Second nitrate reductase of Dunaliella salina: functional redundancy or greater? 杜氏盐藻第二硝酸盐还原酶:功能冗余还是更大?
Protistology Pub Date : 2023-01-01 DOI: 10.21685/1680-0826-2023-17-1-2
Z. Zalutskaya, Sofia Korkina, E. Ermilova
{"title":"Second nitrate reductase of Dunaliella salina: functional redundancy or greater?","authors":"Z. Zalutskaya, Sofia Korkina, E. Ermilova","doi":"10.21685/1680-0826-2023-17-1-2","DOIUrl":"https://doi.org/10.21685/1680-0826-2023-17-1-2","url":null,"abstract":"nitrate reductase (NR), which governs the reduction of nitrate to nitrite. The unicellular green alga Dunaliella salina is a special case, as its cells have two NRs. This makes D. salina attractive to study the mechanisms underlying the nitrate assimilation in photosynthetic unicellular organisms. Here we characterize the expression of the gene encoding the second NR, named as DsaNIA1 . Low levels of mRNA for DsaNIA1 are present in ammonia-grown cells. DsaNIA1 is a nitrate-and nitrite-inducible gene. Using spectrofluorometric assays with NO-sensitive fluorescence dye, we demonstrate nitrite-dependent NO synthesis by D. salina cells. Moreover, we found that the transcription of DsaNIA1 , but not DsaNIA2 , is under the inducing influence of NO-dependent pathway. Together, our data argue for the two differently regulated NR isoforms in D. salina .","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67895516","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}
引用次数: 1
Pterocystis infundibula sp. n. (Pterocystidae, Pterocystida, Centroplasthelida) – the new species of centrohelid heliozoans from the Gulf of Aqaba, Israel infundibula Pterocystis sp. n. (Pterocystis, pterocystia, centrroplasthelida)——以色列亚喀巴湾的一种新物种
Protistology Pub Date : 2022-01-01 DOI: 10.21685/1680-0826-2022-16-1-1
Y. Shɨshkin, Daria Drachko, Vasily V. Zlatogursky
{"title":"Pterocystis infundibula sp. n. (Pterocystidae, Pterocystida, Centroplasthelida) – the new species of centrohelid heliozoans from the Gulf of Aqaba, Israel","authors":"Y. Shɨshkin, Daria Drachko, Vasily V. Zlatogursky","doi":"10.21685/1680-0826-2022-16-1-1","DOIUrl":"https://doi.org/10.21685/1680-0826-2022-16-1-1","url":null,"abstract":"A new species of centrohelid heliozoans Pterocystis infundibula sp. n. from the Gulf of Aqaba (Israel) was studied with light and electron microscopy. The cell diameter is 10.53–19.03 (average 13.73) µm. P. infundibula has scales of two distinct types. Plate scales are 1.99–3.02 (av. 2.53) × 1.10–1.54 (av. 1.35) µm in size, flat, oval or slightly ovoid with an axial thickening. Spine scales are 1.39–5.22 (av. 2.88) µm long, with a funnel-shaped base, which is indistinctly continuous with a shaft, demonstrating gradual levels of reduction to the extent of the complete absence. Spine scales are fenestrated with holes of irregular shape and have a thin marginal border. The cells are floating or attached to the substratum, sometimes in aggregates of 2-5 cells. The similarities with and differences from other Pterocystis spp. as well as other centrohelids are discussed.","PeriodicalId":37502,"journal":{"name":"Protistology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67891123","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}
引用次数: 1
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