It's time to consider the Arcellinida shell as a weapon
Eur J Protistol. 2024 Jan 2;92:126051. doi: 10.1016/j.ejop.2024.126051. Online ahead of print.ABSTRACTThe shells of testate amoebae are morphologically diverse and persistent in the environment. Accordingly, the examination of the morphology and composition of shells became a standard tool in ecological, palaeoecological, and evolutionary studies. However, so far the function of the shell remains poorly understood and, although based on limited evidence, the shell was considered as a defense mechanism. Based on recent evidence, we propose that the shell of arcellinid testate amoebae is a crucial component facilitating the ...
Source: European Journal of Protistology - January 9, 2024 Category: Microbiology Authors: Kenneth Dumack Enrique Lara Cl ément Duckert Elizaveta Ermolaeva Ferry Siemensma David Singer Valentyna Krashevska Mariusz Lamentowicz Edward A D Mitchell Source Type: research
Testate amoebae (Arcellinida, Amoebozoa) community diversity in New England bogs and fens assessed through lineage-specific amplicon sequencing
Eur J Protistol. 2023 Dec 15;92:126049. doi: 10.1016/j.ejop.2023.126049. Online ahead of print.ABSTRACTTestate amoebae (order Arcellinida) are abundant in freshwater ecosystems, including low pH bogs and fens. Within these environments, Arcellinida are considered top predators in microbial food webs and their tests are useful bioindicators of paleoclimatic changes and anthropogenic pollutants. Accurate species identifications and characterizations of diversity are important for studies of paleoclimate, microbial ecology, and environmental change; however, morphological species definitions mask cryptic diversity, which is a...
Source: European Journal of Protistology - January 1, 2024 Category: Microbiology Authors: Olivia K Dufour Evie Hoffman Robin S Sleith Laura A Katz Agnes K M Weiner Taylor R Sehein Source Type: research
Testate amoebae (Arcellinida, Amoebozoa) community diversity in New England bogs and fens assessed through lineage-specific amplicon sequencing
Eur J Protistol. 2023 Dec 15;92:126049. doi: 10.1016/j.ejop.2023.126049. Online ahead of print.ABSTRACTTestate amoebae (order Arcellinida) are abundant in freshwater ecosystems, including low pH bogs and fens. Within these environments, Arcellinida are considered top predators in microbial food webs and their tests are useful bioindicators of paleoclimatic changes and anthropogenic pollutants. Accurate species identifications and characterizations of diversity are important for studies of paleoclimate, microbial ecology, and environmental change; however, morphological species definitions mask cryptic diversity, which is a...
Source: European Journal of Protistology - January 1, 2024 Category: Microbiology Authors: Olivia K Dufour Evie Hoffman Robin S Sleith Laura A Katz Agnes K M Weiner Taylor R Sehein Source Type: research
Testate amoebae (Arcellinida, Amoebozoa) community diversity in New England bogs and fens assessed through lineage-specific amplicon sequencing
Eur J Protistol. 2023 Dec 15;92:126049. doi: 10.1016/j.ejop.2023.126049. Online ahead of print.ABSTRACTTestate amoebae (order Arcellinida) are abundant in freshwater ecosystems, including low pH bogs and fens. Within these environments, Arcellinida are considered top predators in microbial food webs and their tests are useful bioindicators of paleoclimatic changes and anthropogenic pollutants. Accurate species identifications and characterizations of diversity are important for studies of paleoclimate, microbial ecology, and environmental change; however, morphological species definitions mask cryptic diversity, which is a...
Source: European Journal of Protistology - January 1, 2024 Category: Microbiology Authors: Olivia K Dufour Evie Hoffman Robin S Sleith Laura A Katz Agnes K M Weiner Taylor R Sehein Source Type: research
Testate amoebae (Arcellinida, Amoebozoa) community diversity in New England bogs and fens assessed through lineage-specific amplicon sequencing
Eur J Protistol. 2023 Dec 15;92:126049. doi: 10.1016/j.ejop.2023.126049. Online ahead of print.ABSTRACTTestate amoebae (order Arcellinida) are abundant in freshwater ecosystems, including low pH bogs and fens. Within these environments, Arcellinida are considered top predators in microbial food webs and their tests are useful bioindicators of paleoclimatic changes and anthropogenic pollutants. Accurate species identifications and characterizations of diversity are important for studies of paleoclimate, microbial ecology, and environmental change; however, morphological species definitions mask cryptic diversity, which is a...
Source: European Journal of Protistology - January 1, 2024 Category: Microbiology Authors: Olivia K Dufour Evie Hoffman Robin S Sleith Laura A Katz Agnes K M Weiner Taylor R Sehein Source Type: research
Testate amoebae (Arcellinida, Amoebozoa) community diversity in New England bogs and fens assessed through lineage-specific amplicon sequencing
Eur J Protistol. 2023 Dec 15;92:126049. doi: 10.1016/j.ejop.2023.126049. Online ahead of print.ABSTRACTTestate amoebae (order Arcellinida) are abundant in freshwater ecosystems, including low pH bogs and fens. Within these environments, Arcellinida are considered top predators in microbial food webs and their tests are useful bioindicators of paleoclimatic changes and anthropogenic pollutants. Accurate species identifications and characterizations of diversity are important for studies of paleoclimate, microbial ecology, and environmental change; however, morphological species definitions mask cryptic diversity, which is a...
Source: European Journal of Protistology - January 1, 2024 Category: Microbiology Authors: Olivia K Dufour Evie Hoffman Robin S Sleith Laura A Katz Agnes K M Weiner Taylor R Sehein Source Type: research
Testate amoebae (Arcellinida, Amoebozoa) community diversity in New England bogs and fens assessed through lineage-specific amplicon sequencing
Eur J Protistol. 2023 Dec 15;92:126049. doi: 10.1016/j.ejop.2023.126049. Online ahead of print.ABSTRACTTestate amoebae (order Arcellinida) are abundant in freshwater ecosystems, including low pH bogs and fens. Within these environments, Arcellinida are considered top predators in microbial food webs and their tests are useful bioindicators of paleoclimatic changes and anthropogenic pollutants. Accurate species identifications and characterizations of diversity are important for studies of paleoclimate, microbial ecology, and environmental change; however, morphological species definitions mask cryptic diversity, which is a...
Source: European Journal of Protistology - January 1, 2024 Category: Microbiology Authors: Olivia K Dufour Evie Hoffman Robin S Sleith Laura A Katz Agnes K M Weiner Taylor R Sehein Source Type: research
The first arctic strain of Rhizochromulina: Morphology, ultrastructure, and position in the evolutionary tree of the order Rhizochromulinales (Heterokontophyta, Dictyochophyceae)
Eur J Protistol. 2023 Dec 17;92:126050. doi: 10.1016/j.ejop.2023.126050. Online ahead of print.ABSTRACTRhizochromulina marina is a unicellular amoeboid alga capable of forming flagellate cells; it is a single validly named species in the genus. Besides, there are numerous environmental sequences and undescribed strains designated as Rhizochromulina sp. or R. marina. The biogeography of the genus is understudied: rhizochromulines from the Indian, Southern, and Arctic Oceans are unknown. Here, we present the description of Rhizochromulina sp. B44, which was for the first time isolated from an arctic habitat. Biofilms of this...
Source: European Journal of Protistology - December 27, 2023 Category: Microbiology Authors: Pavel Safonov Mariia Berdieva Elena Nassonova Sergei Skarlato Ilya Pozdnyakov Source Type: research
The first arctic strain of Rhizochromulina: Morphology, ultrastructure, and position in the evolutionary tree of the order Rhizochromulinales (Heterokontophyta, Dictyochophyceae)
Eur J Protistol. 2023 Dec 17;92:126050. doi: 10.1016/j.ejop.2023.126050. Online ahead of print.ABSTRACTRhizochromulina marina is a unicellular amoeboid alga capable of forming flagellate cells; it is a single validly named species in the genus. Besides, there are numerous environmental sequences and undescribed strains designated as Rhizochromulina sp. or R. marina. The biogeography of the genus is understudied: rhizochromulines from the Indian, Southern, and Arctic Oceans are unknown. Here, we present the description of Rhizochromulina sp. B44, which was for the first time isolated from an arctic habitat. Biofilms of this...
Source: European Journal of Protistology - December 27, 2023 Category: Microbiology Authors: Pavel Safonov Mariia Berdieva Elena Nassonova Sergei Skarlato Ilya Pozdnyakov Source Type: research
The first arctic strain of Rhizochromulina: Morphology, ultrastructure, and position in the evolutionary tree of the order Rhizochromulinales (Heterokontophyta, Dictyochophyceae)
Eur J Protistol. 2023 Dec 17;92:126050. doi: 10.1016/j.ejop.2023.126050. Online ahead of print.ABSTRACTRhizochromulina marina is a unicellular amoeboid alga capable of forming flagellate cells; it is a single validly named species in the genus. Besides, there are numerous environmental sequences and undescribed strains designated as Rhizochromulina sp. or R. marina. The biogeography of the genus is understudied: rhizochromulines from the Indian, Southern, and Arctic Oceans are unknown. Here, we present the description of Rhizochromulina sp. B44, which was for the first time isolated from an arctic habitat. Biofilms of this...
Source: European Journal of Protistology - December 27, 2023 Category: Microbiology Authors: Pavel Safonov Mariia Berdieva Elena Nassonova Sergei Skarlato Ilya Pozdnyakov Source Type: research
The first arctic strain of Rhizochromulina: Morphology, ultrastructure, and position in the evolutionary tree of the order Rhizochromulinales (Heterokontophyta, Dictyochophyceae)
Eur J Protistol. 2023 Dec 17;92:126050. doi: 10.1016/j.ejop.2023.126050. Online ahead of print.ABSTRACTRhizochromulina marina is a unicellular amoeboid alga capable of forming flagellate cells; it is a single validly named species in the genus. Besides, there are numerous environmental sequences and undescribed strains designated as Rhizochromulina sp. or R. marina. The biogeography of the genus is understudied: rhizochromulines from the Indian, Southern, and Arctic Oceans are unknown. Here, we present the description of Rhizochromulina sp. B44, which was for the first time isolated from an arctic habitat. Biofilms of this...
Source: European Journal of Protistology - December 27, 2023 Category: Microbiology Authors: Pavel Safonov Mariia Berdieva Elena Nassonova Sergei Skarlato Ilya Pozdnyakov Source Type: research
The first arctic strain of Rhizochromulina: Morphology, ultrastructure, and position in the evolutionary tree of the order Rhizochromulinales (Heterokontophyta, Dictyochophyceae)
Eur J Protistol. 2023 Dec 17;92:126050. doi: 10.1016/j.ejop.2023.126050. Online ahead of print.ABSTRACTRhizochromulina marina is a unicellular amoeboid alga capable of forming flagellate cells; it is a single validly named species in the genus. Besides, there are numerous environmental sequences and undescribed strains designated as Rhizochromulina sp. or R. marina. The biogeography of the genus is understudied: rhizochromulines from the Indian, Southern, and Arctic Oceans are unknown. Here, we present the description of Rhizochromulina sp. B44, which was for the first time isolated from an arctic habitat. Biofilms of this...
Source: European Journal of Protistology - December 27, 2023 Category: Microbiology Authors: Pavel Safonov Mariia Berdieva Elena Nassonova Sergei Skarlato Ilya Pozdnyakov Source Type: research
Description of Holostichides (Extraholostichides) eastensis tianjinensis subgen. nov. subspec. nov. (Ciliophora, Hypotricha) from northern China
Eur J Protistol. 2023 Dec 12;92:126048. doi: 10.1016/j.ejop.2023.126048. Online ahead of print.ABSTRACTThe morphology and morphogenesis of a new urostylid, Holostichides (Extraholostichides) eastensis tianjinensis subgen. nov. subspec. nov. were analyzed. The new subspecies differs from the nominotypical subspecies H. (Extraholostichides) eastensis eastensis Wang et al., 2022 by the relatively long frontoterminal row (about 60% vs. 30% of body length), colorless cortical granules (vs. dark brown), two (vs. one) parabuccal cirri, and usually an extra cirrus behind the first midventral pair (vs. lacking). Based on the differ...
Source: European Journal of Protistology - December 20, 2023 Category: Microbiology Authors: Ziyan Liu Ziyu Wang Qi Zhang Qiukun Wang Fengchao Li Source Type: research
Description of Holostichides (Extraholostichides) eastensis tianjinensis subgen. nov. subspec. nov. (Ciliophora, Hypotricha) from northern China
Eur J Protistol. 2023 Dec 12;92:126048. doi: 10.1016/j.ejop.2023.126048. Online ahead of print.ABSTRACTThe morphology and morphogenesis of a new urostylid, Holostichides (Extraholostichides) eastensis tianjinensis subgen. nov. subspec. nov. were analyzed. The new subspecies differs from the nominotypical subspecies H. (Extraholostichides) eastensis eastensis Wang et al., 2022 by the relatively long frontoterminal row (about 60% vs. 30% of body length), colorless cortical granules (vs. dark brown), two (vs. one) parabuccal cirri, and usually an extra cirrus behind the first midventral pair (vs. lacking). Based on the differ...
Source: European Journal of Protistology - December 20, 2023 Category: Microbiology Authors: Ziyan Liu Ziyu Wang Qi Zhang Qiukun Wang Fengchao Li Source Type: research
Description of Holostichides (Extraholostichides) eastensis tianjinensis subgen. nov. subspec. nov. (Ciliophora, Hypotricha) from northern China
Eur J Protistol. 2023 Dec 12;92:126048. doi: 10.1016/j.ejop.2023.126048. Online ahead of print.ABSTRACTThe morphology and morphogenesis of a new urostylid, Holostichides (Extraholostichides) eastensis tianjinensis subgen. nov. subspec. nov. were analyzed. The new subspecies differs from the nominotypical subspecies H. (Extraholostichides) eastensis eastensis Wang et al., 2022 by the relatively long frontoterminal row (about 60% vs. 30% of body length), colorless cortical granules (vs. dark brown), two (vs. one) parabuccal cirri, and usually an extra cirrus behind the first midventral pair (vs. lacking). Based on the differ...
Source: European Journal of Protistology - December 20, 2023 Category: Microbiology Authors: Ziyan Liu Ziyu Wang Qi Zhang Qiukun Wang Fengchao Li Source Type: research
