Trending topics and open questions in anaerobic ammonium oxidation

Peeters, Stijn H.; Niftrik, Laura van

doi:10.1016/j.cbpa.2018.09.022

Cited by 80 publications

(55 citation statements)

References 66 publications

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“…Growth at pH 5-9 in 0.5 intervals was tested using 100 mM MES, HEPES, HEPPS or CHES buffer, corresponding to the individual buffer range. Growth was tested at 10,15,20,22,24,27,30,33,36 and 40 °C to identify the optimal growth temperature. The optimal salinity for S. ferox Poly30 T was tested by inoculation of artificial seawater (ASW) at concentrations of 5%, 10% and 25-300% in 25% intervals to test if the strains are growing under hypersaline conditions.…”

Section: Isolation Cultivation and Physiological Characterization Ofmentioning

confidence: 99%

“…Members of the phylum Planctomycetes are ubiquitous bacteria that play major roles in global carbon and nitrogen cycles [2]. They perform the unique anammox reaction [26] by converting ammonium to dinitrogen gas [27]. Many Planctomycetes dwell on all sorts of marine surfaces [28][29][30][31][32][33] where they can dominate biofilms [34] and digest complex carbon substrates [35,36].…”

Section: Introductionmentioning

confidence: 99%

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The novel shapeshifting bacterial phylumSaltatorellota

Wiegand¹,

Jogler

Kohn³

et al. 2019

Preprint

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Our current understanding of a free-living bacterium -capable of withstanding a variety of environmental stresses-is represented by the image of a peptidoglycan-armored rigid casket.The making and breaking of peptidoglycan greatly determines cell shape. The cytoplasmic membrane follows this shape, pressed towards the cell wall by turgor pressure. Consequently, bacteria are morphologically static organisms, in contrast to eukaryotic cells that can facilitate shape changes. Here we report the discovery of the novel bacterial phylum Saltatorellota, that challenges this concept of a bacterial cell. Members of this phylum can change their shape, are capable of amoeba-like locomotion and trunk-formation through the creation of extensive pseudopodia-like structures. Two independent Saltatorellota cells can fuse, and they employ various forms of cell division from budding to canonical binary fission. Despite their polymorphisms, members of the Saltatorellota do possess a peptidoglycan cell wall. Their genomes encode flagella and type IV pili as well as a bacterial actin homolog, the 'saltatorellin'. This protein is most similar to MamK, a dynamic filament-forming protein, that aligns and segregates magnetosome organelles via treadmilling. We found saltatorellin to form filaments in both, E. coli and Magnetospirillum gryphiswaldense, leading to the hypothesis that shapeshifting and pseudopodia formation might be driven by treadmilling of saltatorellin.

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Section: Isolation Cultivation and Physiological Characterization Ofmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The novel shapeshifting bacterial phylumSaltatorellota

Wiegand¹,

Jogler

Kohn³

et al. 2019

Preprint

View full text Add to dashboard Cite

show abstract

“…Planctomycetes are bacteria with a Gram-negative cell envelope architecture belonging to the PVC superphylum, along with Verrucomicrobia, Lentisphaerae, Kiritimatiellaeota, Candidatus Omnitrophica and Chlamydiae. Many representatives of this superphylum have major medical and biotechnological relevance (Wagner and Horn 2006), and can play key roles in global biogeochemical cycles (Peeters and van Niftrik 2018;Strous et al 1999;Wiegand et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Description of Polystyrenella longa gen. nov., sp. nov., isolated from polystyrene particles incubated in the Baltic Sea

Peeters

Wiegand

Kallscheuer

et al. 2020

Antonie van Leeuwenhoek

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Planctomycetes occur in almost all aquatic ecosystems on earth. They have a remarkable cell biology, and members of the orders Planctomycetales and Pirellulales feature cell division by polar budding, perform a lifestyle switch from sessile to motile cells and have an enlarged periplasmic space. Here, we characterise a novel planctomycetal strain, Pla110T, isolated from the surface of polystyrene particles incubated in the Baltic Sea. After phylogenetic analysis, the strain could be placed in the family Planctomycetaceae. Strain Pla110T performs cell division by budding, has crateriform structures and grows in aggregates or rosettes. The strain is a chemoheterotroph, grows under mesophilic and neutrophilic conditions, and exhibited a doubling time of 21 h. Based on our phylogenetic and morphological characterisation, strain Pla110T (DSM 103387T = LMG 29693T) is concluded to represent a novel species belonging to a novel genus, for which we propose the name Polystyrenella longa gen. nov., sp. nov.

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“…The phylum Planctomycetes is part of the PVC superphylum, along with Verrucomicrobia, Chlamydiae and others (Wagner and Horn 2006). Members of the phylum can play major roles in biogeochemical cycles (Peeters and van Niftrik 2018;Strous et al 1999;Wiegand et al 2018), are ubiquitous and are found in high abundance on algal surfaces (Bengtsson and Øvreås 2010;Bengtsson et al 2012;Bondoso et al 2014Bondoso et al , 2015Bondoso et al , 2017Lage and Bondoso 2014;Vollmers et al 2017), on which they probably metabolise complex sugars (Frank et al 2014;Jeske et al 2013;Lachnit et al 2013;Wiegand et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Lignipirellula cremea gen. nov., sp. nov., a planctomycete isolated from wood particles in a brackish river estuary

Peeters

Wiegand

Kallscheuer

et al. 2020

Antonie van Leeuwenhoek

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A novel planctomycetal strain, designated Pla85_3_4T, was isolated from the surface of wood incubated at the discharge of a wastewater treatment plant in the Warnow river near Rostock, Germany. Cells of the novel strain have a cell envelope architecture resembling that of Gram-negative bacteria, are round to pear-shaped (length: 2.2 ± 0.4 µm, width: 1.2 ± 0.3 µm), form aggregates and divide by polar budding. Colonies have a cream colour. Strain Pla85_3_4T grows at ranges of 10–30 °C (optimum 26 °C) and at pH 6.5–10.0 (optimum 7.5), and has a doubling time of 26 h. Phylogenetically, strain Pla85_3_4T (DSM 103796T = LMG 29741T) is concluded to represent a novel species of a novel genus within the family Pirellulaceae, for which we propose the name Lignipirellula cremea gen. nov., sp. nov.

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Trending topics and open questions in anaerobic ammonium oxidation

Cited by 80 publications

References 66 publications

The novel shapeshifting bacterial phylumSaltatorellota

The novel shapeshifting bacterial phylumSaltatorellota

Description of Polystyrenella longa gen. nov., sp. nov., isolated from polystyrene particles incubated in the Baltic Sea

Lignipirellula cremea gen. nov., sp. nov., a planctomycete isolated from wood particles in a brackish river estuary

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