Two New Members of the Acrasiales

Olive, Lindsay S.; Stoianovitch, Carmen

doi:10.2307/2483057

Cited by 79 publications

(41 citation statements)

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“…We noticed, as had earlier authors (Olive, 1975;Page, 1978), that the amoebae of the two species have a fundamentally different cell shape and mode of pseudopodium formation and locomotion, which are also quite distinct from those of D. discoideum. Furthermore, the amoebae of the three species move with different velocities, those of P. mycophaga almost three times faster and those of A. rosea even more than six times faster than the amoebae of D. discoideum (Zuppinger and Roos, 1997).…”

supporting

confidence: 74%

The Actomyosin Cytoskeleton of Amoebae of the Cellular Slime MoldsAcrasis roseaandProtostelium mycophaga: Structure, Biochemical Properties, and Function

Hellstén

Roos

1998

Fungal Genetics and Biology

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supporting

confidence: 74%

The Actomyosin Cytoskeleton of Amoebae of the Cellular Slime MoldsAcrasis roseaandProtostelium mycophaga: Structure, Biochemical Properties, and Function

Hellstén

Roos

1998

Fungal Genetics and Biology

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“…The sporocarp characteristics and in a lesser extent some ameobal characteristics were used to define genera. Protostelium mycophaga was the type of the genus [16, 21, 44, 45], whose characteristics were a relatively long-stalked sprorocarp with a deciduous spore, arising from an uninucleate amoeba (detailed in the depth in [16]). We provide new taxonomic homes for these two species ( "P." arachisporum and "P." pyriformis) here in Luapeleamoeba and Acanthamoeba , respectively.…”

Section: Discussionmentioning

confidence: 99%

Expansion of the molecular and morphological diversity of Acanthamoebidae (Centramoebida, Amoebozoa) and identification of a novel life cycle type within the group

Tice¹,

Shadwick²,

Fiore-Donno³

et al. 2016

Biol Direct

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BackgroundAcanthamoebidae is a “family” level amoebozoan group composed of the genera Acanthamoeba, Protacanthamoeba, and very recently Luapeleamoeba. This clade of amoebozoans has received considerable attention from the broader scientific community as Acanthamoeba spp. represent both model organisms and human pathogens. While the classical composition of the group (Acanthamoeba + Protacanthamoeba) has been well accepted due to the morphological and ultrastructural similarities of its members, the Acanthamoebidae has never been highly statistically supported in single gene phylogenetic reconstructions of Amoebozoa either by maximum likelihood (ML) or Bayesian analyses.ResultsHere we show using a phylogenomic approach that the Acanthamoebidae is a fully supported monophyletic group within Amoebozoa with both ML and Bayesian analyses. We also expand the known range of morphological and life cycle diversity found in the Acanthamoebidae by demonstrating that the amoebozoans “Protostelium” arachisporum, Dracoamoeba jormungandri n. g. n. sp., and Vacuolamoeba acanthoformis n.g. n.sp., belong within the group. We also found that “Protostelium” pyriformis is clearly a species of Acanthamoeba making it the first reported sporocarpic member of the genus, that is, an amoeba that individually forms a walled, dormant propagule elevated by a non-cellular stalk. Our phylogenetic analyses recover a fully supported Acanthamoebidae composed of five genera. Two of these genera (Acanthamoeba and Luapeleameoba) have members that are sporocarpic.ConclusionsOur results provide high statistical support for an Acanthamoebidae that is composed of five distinct genera. This study increases the known morphological diversity of this group and shows that species of Acanthamoeba can include spore-bearing stages. This further illustrates the widespread nature of spore-bearing stages across the tree of Amoebozoa.ReviewersThis article was reviewed by Drs. Eugene Koonin, Purificacion Lopez-Garcia and Sandra Baldauf. Sandra Baldauf was nominated by Purificacion Lopez-Garcia, an Editorial Board member.Electronic supplementary materialThe online version of this article (doi:10.1186/s13062-016-0171-0) contains supplementary material, which is available to authorized users.

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“…The mitochondrion of Heterolobosea is often closely associated with rough endoplasmic reticulum. ;Page, 1988;Olive & Stoianovitch, 1960).…”

Section: Introductionmentioning

confidence: 99%

Diversity of Heterolobosea

Pánek¹,

Čepička²

2012

Genetic Diversity in Microorganisms

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Two New Members of the Acrasiales

Cited by 79 publications

References 3 publications

The Actomyosin Cytoskeleton of Amoebae of the Cellular Slime MoldsAcrasis roseaandProtostelium mycophaga: Structure, Biochemical Properties, and Function

The Actomyosin Cytoskeleton of Amoebae of the Cellular Slime MoldsAcrasis roseaandProtostelium mycophaga: Structure, Biochemical Properties, and Function

Expansion of the molecular and morphological diversity of Acanthamoebidae (Centramoebida, Amoebozoa) and identification of a novel life cycle type within the group

Diversity of Heterolobosea

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