“Candidatus Laterigemmans baculatus” gen. nov. sp. nov., the first representative of rod shaped planctomycetes with lateral budding in the family Pirellulaceae

Kumar, Dhanesh; Kumar, Gaurav; Jagadeeshwari, Uppada; Sasikala, Ch.; Ramana, Chintalapati Venkata

doi:10.1016/j.syapm.2021.126188

Cited by 12 publications

(4 citation statements)

References 51 publications

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“…NaCl tolerance (1-10% w/v, at an interval of 1% w/v; nal NaCl concentration in the modi ed M30 medium) was tested at 25°C and pH 8. Optimal temperature (5,10,15,20,25,30,35, 40°C) required for growth was tested in modi ed M30 medium at pH 8. pH range (4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0) for growth was tested at 25°C in buffered medium as described previously by (Bondoso et al 2015) To examine the hydrolysis of phytagel, culture was streaked onto the media solidi ed with 2% phytagel (Sigma-Aldrich) and incubated for 4 weeks (Kaushik et al .2020;Kulichevskaya, et al2016). The phytagel hydrolysing property was also checked on media supplemented with N-acetylglucosamine as a sole source of carbon and nitrogen.…”

Section: Physiological Analysismentioning

confidence: 99%

Paludisphaera rhizosphaereae sp. nov., a new member of the family Isosphaeraceae, isolated from the rhizosphere soil of Erianthus ravennae

Lhingjakim

Smita

Kumar

et al. 2022

Antonie van Leeuwenhoek

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Two axenic cultures of Planctomycetota were isolated from distinct geographical locations of India. Strain JC665 T was isolated from a rhizosphere soil of Loktak lake, Manipur, whereas strain JC747 was isolated from a sediment located at Pallikkara village, Kerala, India. The two closely related strains shared the highest (94.6%) 16S rRNA gene sequence identity with Paludidphaera borealis PX4 T , while the 16S rRNA gene sequence identity between both strains was 100%. Both strains grow aerobically, stain Gram negative, colonies are light pink-coloured, cells are non-motile, spherical to oval-shaped and tolerate NaCl up to 2% (w/v). While strain JC665 T grows well up to pH 9.0, strain JC747 up to pH 8.0. Respiratory quinone for both strains was MK-6. C 16:0 , C 18:1 ω9c and C 18:0 are the major fatty acids.Phosphatidylcholine, two unidenti ed glycolipids, seven unidenti ed lipids and two unidenti ed phospholipid was the polar lipid composition of both strains. Both strains have genome size of about 8.0Mb and have GC content of 66.4 mol%. Both strains contained genes encoding for lycopene related carotenoids. The phylogenetic position, morphological, physiological and genomic features support the classi cation of strain JC665 T as a new species of the genus Paludisphaera, for which we propose the name Paludisphaera rhizosphaerae sp. nov. Strain JC665 T (= KCTC 72671 T = NBRC 114305 T ) and JC747 are the type and non-type strain of the new species, respectively.

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Section: Physiological Analysismentioning

confidence: 99%

Paludisphaera rhizosphaereae sp. nov., a new member of the family Isosphaeraceae, isolated from the rhizosphere soil of Erianthus ravennae

Lhingjakim

Smita

Kumar

et al. 2022

Antonie van Leeuwenhoek

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“…‘Candidatus Liberibacter asiaticus’ [ 46 ] and some sit within double quotation marks, e.g. “Candidatus Laterigemmans baculatus” [ 47 ]. Simplicity suggests that no such orthographic encumbrance is needed.…”

Section: Weaknessesmentioning

confidence: 99%

The status Candidatus for uncultured taxa of Bacteria and Archaea: SWOT analysis

Pallen

2021

International Journal of Systematic and Evolutionary Microbiology

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The status Candidatus was introduced to bacterial taxonomy in the 1990s to accommodate uncultured taxa defined by analyses of DNA sequences. Here I review the strengths, weaknesses, opportunities and threats (SWOT) associated with the status Candidatus in the light of a quarter century of use, twinned with recent developments in bacterial taxonomy and sequence-based taxonomic discovery. Despite ambiguities as to its scope, philosophical objections to its use and practical problems in implementation, the status Candidatus has now been applied to over 1000 taxa and has been widely adopted by journals and databases. Although lacking priority under the International Code for Nomenclature of Prokaryotes, many Candidatus names have already achieved de facto standing in the academic literature and in databases via description of a taxon in a peer-reviewed publication, alongside deposition of a genome sequence and there is a clear path to valid publication of such names on culture. Continued and increased use of Candidatus names provides an alternative to the potential upheaval that might accompany creation of a new additional code of nomenclature and provides a ready solution to the urgent challenge of naming many thousands of newly discovered but uncultured species.

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“…O_OPB72 was isolated from Yellowstone hot spring sediments with a pH of 7.6 at 20 ºC (Hugenholtz et al, 1998). Some Pirellulaceae strains were isolated from a natural environment at pH > 7 (Dedysh et al, 2020;Kumar et al, 2021). Peptostreptococcaceae are fermentative anaerobes with optimum pH 7.5-8.3, except for the genus Tepidibacter (6.0-7.3) (Rosenberg et al, 2014).…”

Section: Changes In Microbial Community During Incubationmentioning

confidence: 99%

Impact of pH and removed filtrate on E. coli regrowth and microbial community during storage of electro-dewatered biosolids

Navab-Daneshmand

Guo

Gehr

et al. 2021

Preprint

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Residual biosolids can be land applied if they meet microbiological requirements at the time of application. Electro-dewatering technology is shown to reduce biosolids bacterial counts to detection limits with little potential for bacterial regrowth during incubations. Here, we investigated the impacts on Escherichia coli regrowth and microbial communities of biosolids pH, removed nutrients via the filtrate, and produced inhibitory compounds in electro-dewatered biosolids. Findings suggest pH as the primary mechanism impacting E. coli regrowth in electro-dewatered biosolids. Propidium monoazide treatments were effective to remove DNA from dead cells based on the removal of obligate anaerobes observed after anaerobic incubation. Analyses of high throughput sequenced data showed lower alpha-diversities associated with electro-dewatering treatment and incubation time. Moreover, biosolids pH and incubation period were the main factors contributing to the variations in microbial community compositions after incubation. Results highlight the role of biosolids pH on regrowing culturable bacteria and overall microbial communities.

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“Candidatus Laterigemmans baculatus” gen. nov. sp. nov., the first representative of rod shaped planctomycetes with lateral budding in the family Pirellulaceae

Cited by 12 publications

References 51 publications

Paludisphaera rhizosphaereae sp. nov., a new member of the family Isosphaeraceae, isolated from the rhizosphere soil of Erianthus ravennae

Paludisphaera rhizosphaereae sp. nov., a new member of the family Isosphaeraceae, isolated from the rhizosphere soil of Erianthus ravennae

The status Candidatus for uncultured taxa of Bacteria and Archaea: SWOT analysis

Impact of pH and removed filtrate on E. coli regrowth and microbial community during storage of electro-dewatered biosolids

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