Life history of Apocarchesium arndti Norf & amp;   Foissner, 2010 (Ciliophora, Peritrichia) including recognition of a novel type of zooid
We report the first record of A. arndti in the Danube and provide a detailed description of its colony development. Our findings support the theory of moderate endemicity and reveal a new, smaller zooid type in A. arndti. This zooid remains attached to the colony, connected to the stalk myoneme but lacks an aboral ciliary wreath. Unlike microzooids, it is incapable of leaving the colony. It exhibits a less spherical shape and arises from the fourth division of the colony-founder cell. Although its specific function is unknown, it is hypothesized to support the stalk dish. Our results have significant implications for under...
Source: European Journal of Protistology - September 29, 2023 Category: Microbiology Authors: Álmos Becz J úlia Katalin Török Source Type: research

Phylogenetic and morphological diversity of free-living diplomonads
Eur J Protistol. 2023 Sep 15;91:126024. doi: 10.1016/j.ejop.2023.126024. Online ahead of print.ABSTRACTDiplomonadida is a lineage of anaerobic protists belonging to Fornicata, Metamonada. Most diplomonads are endobiotic or parasitic, such as Giardia intestinalis, which is a famous human pathogen, but several free-living species exist as well. Although it has been proposed that the free-living diplomonads are descendants of endobiotic organisms and thus interesting from the evolutionary point of view, they have been largely neglected. We obtained 58 cultures of free-living diplomonads belonging to four genera (Hexamita, Tre...
Source: European Journal of Protistology - September 29, 2023 Category: Microbiology Authors: Eva Mazancov á Eli ška Zadrobílková Naoji Yubuki Ivan Čepička Source Type: research

Life history of Apocarchesium arndti Norf & amp;   Foissner, 2010 (Ciliophora, Peritrichia) including recognition of a novel type of zooid
We report the first record of A. arndti in the Danube and provide a detailed description of its colony development. Our findings support the theory of moderate endemicity and reveal a new, smaller zooid type in A. arndti. This zooid remains attached to the colony, connected to the stalk myoneme but lacks an aboral ciliary wreath. Unlike microzooids, it is incapable of leaving the colony. It exhibits a less spherical shape and arises from the fourth division of the colony-founder cell. Although its specific function is unknown, it is hypothesized to support the stalk dish. Our results have significant implications for under...
Source: European Journal of Protistology - September 29, 2023 Category: Microbiology Authors: Álmos Becz J úlia Katalin Török Source Type: research

Phylogenetic and morphological diversity of free-living diplomonads
Eur J Protistol. 2023 Sep 15;91:126024. doi: 10.1016/j.ejop.2023.126024. Online ahead of print.ABSTRACTDiplomonadida is a lineage of anaerobic protists belonging to Fornicata, Metamonada. Most diplomonads are endobiotic or parasitic, such as Giardia intestinalis, which is a famous human pathogen, but several free-living species exist as well. Although it has been proposed that the free-living diplomonads are descendants of endobiotic organisms and thus interesting from the evolutionary point of view, they have been largely neglected. We obtained 58 cultures of free-living diplomonads belonging to four genera (Hexamita, Tre...
Source: European Journal of Protistology - September 29, 2023 Category: Microbiology Authors: Eva Mazancov á Eli ška Zadrobílková Naoji Yubuki Ivan Čepička Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research

Expansion of the cytochrome C oxidase subunit I database and description of four new lobose testate amoebae species (Amoebozoa; Arcellinida)
Eur J Protistol. 2023 Aug 13;91:126013. doi: 10.1016/j.ejop.2023.126013. Online ahead of print.ABSTRACTArcellinida is ascending in importance in protistology, but description of their diversity still presents multiple challenges. Furthermore, applicable tools for surveillance of these organisms are still in developing stages. Importantly, a good database that sets a correspondence between molecular barcodes and species morphology is lacking. Cytochrome oxidase (COI) has been suggested as the most relevant marker for species discrimination in Arcellinida. However, some major groups of Arcellinida are still lacking a COI seq...
Source: European Journal of Protistology - September 10, 2023 Category: Microbiology Authors: Giulia M Ribeiro Fernando Useros Kenneth Dumack Rub én González-Miguéns Ferry Siemensma Alfredo L Porf írio-Sousa Carmen Soler-Zamora Jo ão Pedro Barbosa Alcino Daniel J G Lahr Enrique Lara Source Type: research