Morphological, ontogenetic, and phylogenetic research of a poorly known non-dorsomarginalian ciliate: Erniella filiformis Foissner, 1987 (Protista, Ciliophora, Hypotrichia)
In this study, the type species E. filiformis, isolated from highly saline water in China, was investigated for morphology, morphogenesis, and phylogeny based on small subunit ribosomal DNA sequences. The main characteristic events during morphogenesis in Erniella filiformis are as follows: (1) in the proter, only the posterior part of the parental adoral zone is renewed and undulating membranes anlage is formed from the dedifferentiation of the old structure; (2) the oral primordium is formed intrakinetally in the opisthe; (3) frontoventral-transverse cirral anlagen II-IV develop in the primary mode, anlage V develops int...
Source: European Journal of Protistology - November 5, 2023 Category: Microbiology Authors: Yurui Wang Jingyi Wang Banghe Wang Kunwu Wang Chen Shao Source Type: research
Morphological, ontogenetic, and phylogenetic research of a poorly known non-dorsomarginalian ciliate: Erniella filiformis Foissner, 1987 (Protista, Ciliophora, Hypotrichia)
In this study, the type species E. filiformis, isolated from highly saline water in China, was investigated for morphology, morphogenesis, and phylogeny based on small subunit ribosomal DNA sequences. The main characteristic events during morphogenesis in Erniella filiformis are as follows: (1) in the proter, only the posterior part of the parental adoral zone is renewed and undulating membranes anlage is formed from the dedifferentiation of the old structure; (2) the oral primordium is formed intrakinetally in the opisthe; (3) frontoventral-transverse cirral anlagen II-IV develop in the primary mode, anlage V develops int...
Source: European Journal of Protistology - November 5, 2023 Category: Microbiology Authors: Yurui Wang Jingyi Wang Banghe Wang Kunwu Wang Chen Shao Source Type: research
Morphological, ontogenetic, and phylogenetic research of a poorly known non-dorsomarginalian ciliate: Erniella filiformis Foissner, 1987 (Protista, Ciliophora, Hypotrichia)
In this study, the type species E. filiformis, isolated from highly saline water in China, was investigated for morphology, morphogenesis, and phylogeny based on small subunit ribosomal DNA sequences. The main characteristic events during morphogenesis in Erniella filiformis are as follows: (1) in the proter, only the posterior part of the parental adoral zone is renewed and undulating membranes anlage is formed from the dedifferentiation of the old structure; (2) the oral primordium is formed intrakinetally in the opisthe; (3) frontoventral-transverse cirral anlagen II-IV develop in the primary mode, anlage V develops int...
Source: European Journal of Protistology - November 5, 2023 Category: Microbiology Authors: Yurui Wang Jingyi Wang Banghe Wang Kunwu Wang Chen Shao Source Type: research
Morphological, ontogenetic, and phylogenetic research of a poorly known non-dorsomarginalian ciliate: Erniella filiformis Foissner, 1987 (Protista, Ciliophora, Hypotrichia)
In this study, the type species E. filiformis, isolated from highly saline water in China, was investigated for morphology, morphogenesis, and phylogeny based on small subunit ribosomal DNA sequences. The main characteristic events during morphogenesis in Erniella filiformis are as follows: (1) in the proter, only the posterior part of the parental adoral zone is renewed and undulating membranes anlage is formed from the dedifferentiation of the old structure; (2) the oral primordium is formed intrakinetally in the opisthe; (3) frontoventral-transverse cirral anlagen II-IV develop in the primary mode, anlage V develops int...
Source: European Journal of Protistology - November 5, 2023 Category: Microbiology Authors: Yurui Wang Jingyi Wang Banghe Wang Kunwu Wang Chen Shao Source Type: research
Morphological, ontogenetic, and phylogenetic research of a poorly known non-dorsomarginalian ciliate: Erniella filiformis Foissner, 1987 (Protista, Ciliophora, Hypotrichia)
In this study, the type species E. filiformis, isolated from highly saline water in China, was investigated for morphology, morphogenesis, and phylogeny based on small subunit ribosomal DNA sequences. The main characteristic events during morphogenesis in Erniella filiformis are as follows: (1) in the proter, only the posterior part of the parental adoral zone is renewed and undulating membranes anlage is formed from the dedifferentiation of the old structure; (2) the oral primordium is formed intrakinetally in the opisthe; (3) frontoventral-transverse cirral anlagen II-IV develop in the primary mode, anlage V develops int...
Source: European Journal of Protistology - November 5, 2023 Category: Microbiology Authors: Yurui Wang Jingyi Wang Banghe Wang Kunwu Wang Chen Shao Source Type: research
Re-isolation and revaluation of boundaries of Thecamoeba terricola Greeff, 1886 (Amoebozoa, Discosea, Thecamoebida), with description of Thecamoeba vicaria n. sp
Eur J Protistol. 2023 Oct 28;91:126030. doi: 10.1016/j.ejop.2023.126030. Online ahead of print.ABSTRACTWe studied a large species of Thecamoeba found in a glass dish with soaked moss and obtained 18s rRNA gene sequence of this organism. Morphologically, the strain was most similar to T. terricola sensu Page, but had significant differences in cell size and nuclear morphology. A more complete similarity was found with the original description of "Amoeba terricola" by Greeff, as well as with Penard's descriptions and slides. The analysis of literature data shows that the strain described by Page in 1977 as a re-isolated T. t...
Source: European Journal of Protistology - November 3, 2023 Category: Microbiology Authors: Yelisei Mesentsev Alina Surkova Oksana Kamyshatskaya Elena Nassonova Alexey Smirnov Source Type: research
Phylogenetic position of the pelobiont Mastigamoeba aspera and revision of the family Mastigamoebidae (Archamoebae, Pelobiontida)
In this study, we presented the results of our molecular phylogenetic analysis of Archamoebae using a newly obtained sequence of the 18S rRNA gene of Mastigamoeba aspera, the type species of the genus. In addition, we characterized the general organization of the tubulin cytoskeleton of M. aspera by immunofluorescent microscopy and TEM. Our findings allowed us to revise the family Mastigamoebidae and establish within it two subfamilies: Mastigamoebinae for the genus Mastigamoeba and Seraviniinae subfam. nov. for the genera Seravinia gen. nov., Paramastigamoeba gen. nov., Iodamoeba and Endolimax. The type genera Mastigamoeb...
Source: European Journal of Protistology - November 2, 2023 Category: Microbiology Authors: Ludmila V Chistyakova Alexei Yu Kostygov Andrew V Goodkov Anton V Radaev Alexander O Frolov Source Type: research
Phylogenetic position of the pelobiont Mastigamoeba aspera and revision of the family Mastigamoebidae (Archamoebae, Pelobiontida)
In this study, we presented the results of our molecular phylogenetic analysis of Archamoebae using a newly obtained sequence of the 18S rRNA gene of Mastigamoeba aspera, the type species of the genus. In addition, we characterized the general organization of the tubulin cytoskeleton of M. aspera by immunofluorescent microscopy and TEM. Our findings allowed us to revise the family Mastigamoebidae and establish within it two subfamilies: Mastigamoebinae for the genus Mastigamoeba and Seraviniinae subfam. nov. for the genera Seravinia gen. nov., Paramastigamoeba gen. nov., Iodamoeba and Endolimax. The type genera Mastigamoeb...
Source: European Journal of Protistology - November 2, 2023 Category: Microbiology Authors: Ludmila V Chistyakova Alexei Yu Kostygov Andrew V Goodkov Anton V Radaev Alexander O Frolov Source Type: research
Phylogenetic position of the pelobiont Mastigamoeba aspera and revision of the family Mastigamoebidae (Archamoebae, Pelobiontida)
In this study, we presented the results of our molecular phylogenetic analysis of Archamoebae using a newly obtained sequence of the 18S rRNA gene of Mastigamoeba aspera, the type species of the genus. In addition, we characterized the general organization of the tubulin cytoskeleton of M. aspera by immunofluorescent microscopy and TEM. Our findings allowed us to revise the family Mastigamoebidae and establish within it two subfamilies: Mastigamoebinae for the genus Mastigamoeba and Seraviniinae subfam. nov. for the genera Seravinia gen. nov., Paramastigamoeba gen. nov., Iodamoeba and Endolimax. The type genera Mastigamoeb...
Source: European Journal of Protistology - November 2, 2023 Category: Microbiology Authors: Ludmila V Chistyakova Alexei Yu Kostygov Andrew V Goodkov Anton V Radaev Alexander O Frolov Source Type: research
Morphology and phylogeny of four trachelocercid ciliates (Ciliophora, Karyorelictea, Trachelocercidae) from North China Sea, with description of a new species
Eur J Protistol. 2023 Sep 16;91:126025. doi: 10.1016/j.ejop.2023.126025. Online ahead of print.ABSTRACTTrachelocercids are common ciliates in marine sandy intertidal zones, however, only few species have been described using modern taxonomic techniques, with several earlier descriptions still lacking primary data, such as a detailed description of the oral ciliature. For this reason, systematics of the family Trachelocercidae Kent, 1881 resulted in paraphyletic genera and needs a critical revision. As an attempt to fill the gap of knowledge for this group, this study presents one new species description, Tracheloraphis apo...
Source: European Journal of Protistology - October 27, 2023 Category: Microbiology Authors: Tingting Ye Wen Song Yuqing Li Khaled A S Al-Rasheid Valentina Serra Mingzhen Ma Source Type: research
Morphology and phylogeny of four trachelocercid ciliates (Ciliophora, Karyorelictea, Trachelocercidae) from North China Sea, with description of a new species
Eur J Protistol. 2023 Sep 16;91:126025. doi: 10.1016/j.ejop.2023.126025. Online ahead of print.ABSTRACTTrachelocercids are common ciliates in marine sandy intertidal zones, however, only few species have been described using modern taxonomic techniques, with several earlier descriptions still lacking primary data, such as a detailed description of the oral ciliature. For this reason, systematics of the family Trachelocercidae Kent, 1881 resulted in paraphyletic genera and needs a critical revision. As an attempt to fill the gap of knowledge for this group, this study presents one new species description, Tracheloraphis apo...
Source: European Journal of Protistology - October 27, 2023 Category: Microbiology Authors: Tingting Ye Wen Song Yuqing Li Khaled A S Al-Rasheid Valentina Serra Mingzhen Ma Source Type: research
Morphology and phylogeny of four trachelocercid ciliates (Ciliophora, Karyorelictea, Trachelocercidae) from North China Sea, with description of a new species
Eur J Protistol. 2023 Sep 16;91:126025. doi: 10.1016/j.ejop.2023.126025. Online ahead of print.ABSTRACTTrachelocercids are common ciliates in marine sandy intertidal zones, however, only few species have been described using modern taxonomic techniques, with several earlier descriptions still lacking primary data, such as a detailed description of the oral ciliature. For this reason, systematics of the family Trachelocercidae Kent, 1881 resulted in paraphyletic genera and needs a critical revision. As an attempt to fill the gap of knowledge for this group, this study presents one new species description, Tracheloraphis apo...
Source: European Journal of Protistology - October 27, 2023 Category: Microbiology Authors: Tingting Ye Wen Song Yuqing Li Khaled A S Al-Rasheid Valentina Serra Mingzhen Ma Source Type: research
Morphology and phylogeny of four trachelocercid ciliates (Ciliophora, Karyorelictea, Trachelocercidae) from North China Sea, with description of a new species
Eur J Protistol. 2023 Sep 16;91:126025. doi: 10.1016/j.ejop.2023.126025. Online ahead of print.ABSTRACTTrachelocercids are common ciliates in marine sandy intertidal zones, however, only few species have been described using modern taxonomic techniques, with several earlier descriptions still lacking primary data, such as a detailed description of the oral ciliature. For this reason, systematics of the family Trachelocercidae Kent, 1881 resulted in paraphyletic genera and needs a critical revision. As an attempt to fill the gap of knowledge for this group, this study presents one new species description, Tracheloraphis apo...
Source: European Journal of Protistology - October 27, 2023 Category: Microbiology Authors: Tingting Ye Wen Song Yuqing Li Khaled A S Al-Rasheid Valentina Serra Mingzhen Ma Source Type: research
Morphology and phylogeny of four trachelocercid ciliates (Ciliophora, Karyorelictea, Trachelocercidae) from North China Sea, with description of a new species
Eur J Protistol. 2023 Sep 16;91:126025. doi: 10.1016/j.ejop.2023.126025. Online ahead of print.ABSTRACTTrachelocercids are common ciliates in marine sandy intertidal zones, however, only few species have been described using modern taxonomic techniques, with several earlier descriptions still lacking primary data, such as a detailed description of the oral ciliature. For this reason, systematics of the family Trachelocercidae Kent, 1881 resulted in paraphyletic genera and needs a critical revision. As an attempt to fill the gap of knowledge for this group, this study presents one new species description, Tracheloraphis apo...
Source: European Journal of Protistology - October 27, 2023 Category: Microbiology Authors: Tingting Ye Wen Song Yuqing Li Khaled A S Al-Rasheid Valentina Serra Mingzhen Ma Source Type: research
Identification and characterization of an ectophosphatase activity involved in Acanthamoeba castellanii adhesion to host cells
Eur J Protistol. 2023 Oct 13;91:126026. doi: 10.1016/j.ejop.2023.126026. Online ahead of print.ABSTRACTAcanthamoeba castellanii is a free-living amoeba and an opportunistic pathogen for humans that can cause encephalitis and, more commonly, Acanthamoeba keratitis. During its life cycle, A. castellanii may present as proliferative and infective trophozoites or resistant cysts. The adhesion of trophozoites to host cells is a key first step in the pathogenesis of infection. A major virulence protein of Acanthamoeba is a mannose-binding protein (MBP) that mediates the adhesion of amoebae to cell surfaces. Ectophosphatases are ...
Source: European Journal of Protistology - October 23, 2023 Category: Microbiology Authors: Luiz Fernando Carvalho-Kelly Anita Leocadio Freitas-Mesquita Clara Ferreira Pralon Eduarda de Souza-Maciel Jos é Roberto Meyer-Fernandes Source Type: research
