5,771 results match your criteria Antonie van Leeuwenhoek[Journal]


Endophytic microbes: biodiversity, plant growth-promoting mechanisms and potential applications for agricultural sustainability.

Antonie Van Leeuwenhoek 2020 Jun 2. Epub 2020 Jun 2.

ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, 275103, India.

Endophytic microbes are known to live asymptomatically inside their host throughout different stages of their life cycle and play crucial roles in the growth, development, fitness, and diversification of plants. The plant-endophyte association ranges from mutualism to pathogenicity. These microbes help the host to combat a diverse array of biotic and abiotic stressful conditions. Read More

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http://dx.doi.org/10.1007/s10482-020-01429-yDOI Listing

Mesorhizobium rhizophilum sp. nov., a 1-aminocyclopropane-1-carboxylate deaminase producing bacterium isolated from rhizosphere of maize in Northeast China.

Antonie Van Leeuwenhoek 2020 May 28. Epub 2020 May 28.

Key Laboratory of Microbial Resources, Ministry of Agriculture and Rural Affairs/ Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, People's Republic of China.

A novel 1-aminocyclopropane-1-carboxylate deaminase producing bacterium, Gram- stain-negative, aerobic, motile, rod-shaped strain designated YM1C-6-2 was isolated from rhizosphere of maize grown in Northeast China. The 16S rRNA gene sequence analysis indicated that strain YM1C-6-2 belongs to the genus Mesorhizobium and is closely related to Mesorhizobium alhagi CCNWXJ12-2 and M. camelthorni CCNWXJ40-4 with sequence similarities of 98. Read More

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http://dx.doi.org/10.1007/s10482-020-01425-2DOI Listing

Glaciimonas soli sp. nov., a soil bacterium isolated from the forest of a high elevation mountain.

Antonie Van Leeuwenhoek 2020 May 28. Epub 2020 May 28.

Institute of Oceanography, National Taiwan University, PO Box 23-13, Taipei, 10617, Taiwan.

A Gram-negative, psychrophilic bacterium, designated strain GS1, was isolated from a forest soil sample collected from the West Peak of Mt. Yushan, Yushan National Park, Taiwan. Cells grown in broth cultures were mostly non-motile and non-flagellated, whereas motile cells with monotrichous, subpolar flagella were also observed. Read More

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http://dx.doi.org/10.1007/s10482-020-01428-zDOI Listing

Pseudomonas atacamensis sp. nov., isolated from the rhizosphere of desert bloom plant in the region of Atacama, Chile.

Antonie Van Leeuwenhoek 2020 May 20. Epub 2020 May 20.

Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago, Chile.

The bacterial strain M7D1 was isolated from samples of the rhizosphere of desert bloom plants on the Atacama region located in northern Chile as part of a study intended to isolate nitrifying bacteria in this adverse environment. It was previously identified as belonging to the Pseudomonas fluorescens group. In this study, the phylogenetic analysis of the 16s RNA, gyrA, rpoB and rpoD genes confirmed that this strain belongs to this group, especially Sub Group (SG) Koreensis, but it represents a potential new species. Read More

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http://dx.doi.org/10.1007/s10482-020-01427-0DOI Listing

Phenotypes, transcriptome, and novel biofilm formation associated with the ydcI gene.

Antonie Van Leeuwenhoek 2020 May 17. Epub 2020 May 17.

Department of Biology, Villanova University, 800 Lancaster Avenue, Villanova, PA, 19085, USA.

The ydcI gene has previously been shown to encode a DNA-binding protein involved with acid stress resistance and induced biofilm formation in a strain of Salmonella enterica serovar Typhimurium. In addition, characterisation of the ydcI gene in Escherichia coli and other bacteria demonstrated strikingly different tolerance for induced ydcI expression across Gram negative species. In this report, we investigated the conservation of these phenotypes across multiple strains of S. Read More

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http://dx.doi.org/10.1007/s10482-020-01412-7DOI Listing

Characterisation of antagonistic Bacillus paralicheniformis (strain EAL) by LC-MS, antimicrobial peptide genes, and ISR determinants.

Antonie Van Leeuwenhoek 2020 May 15. Epub 2020 May 15.

C. G. Bhakta Institute of Biotechnology, Uka Tarsadia University, Maliba Campus, Bardoli, Surat, Gujarat, 394 350, India.

Plants have their own defense mechanisms such as induced systemic resistance (ISR) and systemic-acquired resistance. Bacillus spp. are familiar biocontrol agents that trigger ISR against various phytopathogens by eliciting various metabolites and producing defense enzyme in the host plant. Read More

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http://dx.doi.org/10.1007/s10482-020-01423-4DOI Listing

Mucin pre-cultivated Lactobacillus reuteri E shows enhanced adhesion and increases mucin expression in HT-29 cells.

Antonie Van Leeuwenhoek 2020 May 14. Epub 2020 May 14.

Department of Cell and Molecular Biology of Drugs, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, Bratislava, Slovak Republic.

Adhesion of probiotic bacteria to the mucus layer lining the gastrointestinal tract is necessary for its effective colonisation and specific therapeutic effects. Enrichment of growth medium with mucin might stimulate bacterial adhesion, probably by increasing the expression of surface structures responsible for bacteria-gut epithelia and/or mucus interactions. The aim of this study was to determine if pre-cultivation of potentially probiotic strain Lactobacillus reuteri E (LRE) with mucin stimulates its adherence to colon cell line HT-29 and if the increased adhesion modulates mucin expression in these cells. Read More

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http://dx.doi.org/10.1007/s10482-020-01426-1DOI Listing

Calycomorphotria hydatis gen. nov., sp. nov., a novel species in the family Planctomycetaceae with conspicuous subcellular structures.

Antonie Van Leeuwenhoek 2020 May 12. Epub 2020 May 12.

Department of Microbial Interactions, Institute of Microbiology, Friedrich Schiller University, Jena, Germany.

A novel strain belonging to the family Planctomycetaceae, designated V22, was isolated from sediment of a seawater fish tank in Braunschweig, Germany. The isolate forms pink colonies on solid medium and displays common characteristics of planctomycetal strains, such as division by budding, formation of rosettes, a condensed nucleoid and presence of crateriform structures and fimbriae. Unusual invaginations of the cytoplasmic membrane and filamentous putative cytoskeletal elements were observed in thin sections analysed by transmission electron microscopy. Read More

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http://dx.doi.org/10.1007/s10482-020-01419-0DOI Listing

Tautonia plasticadhaerens sp. nov., a novel species in the family Isosphaeraceae isolated from an alga in a hydrothermal area of the Eolian Archipelago.

Antonie Van Leeuwenhoek 2020 May 12. Epub 2020 May 12.

Department of Microbiology, Radboud University, Nijmegen, The Netherlands.

A novel planctomycetal strain, designated ElP, was isolated from an alga in the shallow hydrothermal vent system close to Panarea Island in the Tyrrhenian Sea. Cells of strain ElP are spherical, form pink colonies and display typical planctomycetal characteristics including division by budding and presence of crateriform structures. Strain ElP has a mesophilic (optimum at 30 °C) and neutrophilic (optimum at pH 7. Read More

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http://dx.doi.org/10.1007/s10482-020-01424-3DOI Listing

Biocontrol ability and volatile organic compounds production as a putative mode of action of yeast strains isolated from organic grapes and rye grains.

Antonie Van Leeuwenhoek 2020 May 5. Epub 2020 May 5.

Department of Fermentation Technology, Institute of Agricultural and Food Biotechnology, 36 Rakowiecka, 02-532, Warsaw, Poland.

The inhibiting activity of three yeast strains belonging to Pichia kudriavzevii, Pichia occidentalis, and Meyerozyma quilliermondii/Meyerozyma caribbica genera against common plant pathogens representing Mucor spp., Penicillium chrysogenum, Penicillium expansum, Aspergillus flavus, Fusarium cereals, Fusarium poae, as well as Botrytis cinerea genera was investigated. The yeast strains tested had a positive impact on growth inhibition of all target plant pathogens. Read More

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http://dx.doi.org/10.1007/s10482-020-01420-7DOI Listing

Duganella rivus sp. nov., Duganella fentianensis sp. nov., Duganella qianjiadongensis sp. nov. and Massilia guangdongensis sp. nov., isolated from subtropical streams in China and reclassification of all species within genus Pseudoduganella.

Antonie Van Leeuwenhoek 2020 May 2. Epub 2020 May 2.

Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, People's Republic of China.

Four Gram-stain-negative, catalase-positive, rod-shaped and motile strains (FT55W, FT93W, CY13W and DS3) were isolated from subtropical streams in China. Comparisons based on 16S rRNA gene sequences indicated that strains FT55W, FT93W and CY13W take strain Pseudoduganella danionis E3/2, and strain DS3 takes strain Pseudoduganella eburnea 10R5-21 as their closest neighbour, respectively. The genome sizes of strains FT55W, FT93W, CY13W and DS3 were 6. Read More

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http://dx.doi.org/10.1007/s10482-020-01422-5DOI Listing

Microvirga arsenatis sp. nov., an arsenate reduction bacterium isolated from Tibet hot spring sediments.

Antonie Van Leeuwenhoek 2020 May 2. Epub 2020 May 2.

State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.

Two novel Gram-stain negative, moderately thermophilic, aerobic, rod-shaped strains, designated 3D203 and 3D207, were isolated from hot spring sediment samples collected from Tibet, western China. Phylogenetic analyses based on 16S rRNA gene sequence similarities showed that two isolates belonged to the genus Microvirga and were most closely related to Microvirga makkahensis SV1470 (98.5% and 98. Read More

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http://dx.doi.org/10.1007/s10482-020-01421-6DOI Listing

Symbiotic yeasts from the mycangium, larval gut and woody substrate of an African stag beetle Xiphodontus antilope (Coleoptera: Lucanidae).

Antonie Van Leeuwenhoek 2020 Apr 21. Epub 2020 Apr 21.

H. G. W. J. Schweickerdt Herbarium, Department of Plant and Soil Sciences, Plant Sciences Complex, University of Pretoria, Private Bag X20, Hatfield, 0028, South Africa.

Female stag beetles (Lucanidae) possess internal mycangia to maintain microbial cultures. Yeasts from these mycangia may help with larval nutrition in nutrient poor woody substrates, but only a few Lucanidae taxa have been studied and all reports originate from Europe and Asia. We identify the first mycangial yeasts of a South African endemic Lucanidae beetle, Xiphodontus antilope, using nuclear ribosomal RNA and ITS DNA sequence data. Read More

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http://dx.doi.org/10.1007/s10482-020-01418-1DOI Listing

Screening bacterial phosphate solubilization with bulk-tricalcium phosphate and hydroxyapatite nanoparticles.

Antonie Van Leeuwenhoek 2020 Apr 21. Epub 2020 Apr 21.

Environmental Microbiology Laboratory, Colegio de Postgraduados, Campus Montecillo, km. 36.5 Carretera Mexico-Texcoco, 56230, Texcoco Estado de Mexico, Mexico, Mexico.

Phosphate-solubilizing bacteria can release phosphorus (P) from insoluble minerals and benefit either soil fitness or plant growth. Bulk sized P compounds have been suggested but little is known about solubilization of nanosized materials such as hydroxyapatite nanoparticles (HANP). A screening of the initial 43 strains from vanilla rhizospheres for phosphate solubilization with bulk Ca(PO) was carried out. Read More

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http://dx.doi.org/10.1007/s10482-020-01409-2DOI Listing

Genomic sequencing of Gracilibacillus dipsosauri reveals key properties of a salt-tolerant α-amylase.

Antonie Van Leeuwenhoek 2020 Apr 21. Epub 2020 Apr 21.

Bioinformatics Core Facility, Knowledge Enterprise, Arizona State University, Tempe, AZ, 85281, USA.

Gracilibacillus dipsosauri is a moderately-halophilic Gram-positive bacterium which forms an extracellular α-amylase that is induced by starch, repressed by D-glucose, and active in 2.0 M KCl. Previous studies showed that while enzyme activity could be measured with the synthetic substrate 2-chloro-4-nitrophenyl-α-D-maltotrioside (CNPG3), other assays were inconsistent and the protein showed aberrant mobility during nondenaturing gel electrophoresis. Read More

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http://dx.doi.org/10.1007/s10482-020-01417-2DOI Listing

Anaplasmataceae closely related to Ehrlichia chaffeensis and Neorickettsia helminthoeca from birds in Central Europe, Hungary.

Antonie Van Leeuwenhoek 2020 Apr 21. Epub 2020 Apr 21.

Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, 1078, Hungary.

Increasing amount of data attest that (in the context of vector-borne infections) birds are not only important as hosts of blood-sucking arthropod vectors, but also as reservoirs of vector-borne pathogens. From 2015 to 2019 cadavers of 100 birds (from 45 species, nine orders) were collected in Hungary, and their organs were screened for DNA from a broad range of vector-borne bacteria with PCR and sequencing. Molecular analyses revealed the presence of Anaplasmataceae, and sequencing identified bacteria closely related to Neorickettsia helminthoeca and Ehrlichia chaffeensis in a Eurasian teal (Anas crecca) and a song thrush (Turdus philomelos), respectively. Read More

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http://dx.doi.org/10.1007/s10482-020-01415-4DOI Listing

Improving the yields of thurincin H in a native producer strain.

Antonie Van Leeuwenhoek 2020 Apr 20. Epub 2020 Apr 20.

Life Science Division, Graduate Program in Biosciences, University of Guanajuato Campus Irapuato-Salamanca, 36500, Irapuato, Guanajuato, Mexico.

Thurincin H is a bacteriocin produced by Bacillus thuringiensis with activity against a wide range of bacteria, including Gram positive and Gram negative. Disadvantages of producing thurincin H in B. thuringiensis is the low production level in the native strain probably due to the highly regulated mechanism of biosynthesis. Read More

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http://dx.doi.org/10.1007/s10482-020-01408-3DOI Listing

Streptomyces taklimakanensis sp. nov., an actinomycete isolated from the Taklimakan desert.

Antonie Van Leeuwenhoek 2020 Apr 18. Epub 2020 Apr 18.

Xinjiang Production and Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin/College of Life Science, Tarim University, Alar, 843300, Xinjiang, People's Republic of China.

A novel Streptomyces strain, designated TRM43335, was isolated from the Taklimakan desert in Alar City, Xinjiang, north-west China. The strain was found to exhibit an inhibitory effect on biofilm formation by Candida albicans and Staphylococcus epidermidis. A polyphasic approach was used to determine its taxonomic status. Read More

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http://dx.doi.org/10.1007/s10482-020-01416-3DOI Listing

Lactococcus protaetiae sp. nov. and Xylanimonas protaetiae sp. nov., isolated from gut of larvae of Protaetia brevitarsis seulensis.

Antonie Van Leeuwenhoek 2020 Apr 18. Epub 2020 Apr 18.

Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea.

Two bacterial strains, designated 2DFWM-2 and FW10M-9, were isolated from gut of larva of Protaetia brevitarsis seulensis grown at the National Institute of Agricultural Sciences, Wanju-gun, South Korea. 16S rRNA and rpoB gene sequences showed that strain 2DFWM-2 formed a separate branch with Lactococcus allomyrinae 1JSPR-7 in the genus Lactococcus, adjacent to a group of Lactococcus lactis subspecies. ANI and dDDH values between 2DFWM-2 and Lactococcus allomyrinae 1JSPR-7 were 93. Read More

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http://dx.doi.org/10.1007/s10482-020-01413-6DOI Listing

Draft genome and description of Negativicoccus massiliensis strain Marseille-P2082, a new species isolated from the gut microbiota of an obese patient.

Antonie Van Leeuwenhoek 2020 Apr 17. Epub 2020 Apr 17.

IRD198, APHM, MEPHI, IHU-Méditerranée Infection, Aix Marseille Univ, 19-21 Boulevard Jean Moulin, 13385, Marseille cedex 05, France.

Strain Marseille-P2082, an anaerobic, non-motile, asporogenous, Gram-negative, coccoid bacterium was isolated from the faeces of a 33 year-old obese French woman before bariatric surgery. The isolate exhibits 98.65% 16S rRNA gene nucleotide sequence similarity with Negativicoccus succinicivorans strain ADV 07/08/06-B-1388, its current closest phylogenetic neighbour with standing in nomenclature. Read More

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http://dx.doi.org/10.1007/s10482-020-01414-5DOI Listing

Chryseobacterium salivictor sp. nov., a plant-growth-promoting bacterium isolated from freshwater.

Antonie Van Leeuwenhoek 2020 Apr 15. Epub 2020 Apr 15.

Environmental Microbiology Research Team, NNIBR, Sangju, 37242, Republic of Korea.

A Gram-stain-negative, non-motile, rod-shaped bacterial strain, designated NBC 122, was isolated from freshwater of the Nakdong River Republic of Korea. Growth occurred at pH 5.0-8. Read More

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http://dx.doi.org/10.1007/s10482-020-01411-8DOI Listing

Brevibacillus fortis NRS-1210 produces edeines that inhibit the in vitro growth of conidia and chlamydospores of the onion pathogen Fusarium oxysporum f. sp. cepae.

Antonie Van Leeuwenhoek 2020 Apr 11. Epub 2020 Apr 11.

Crop Bioprotection Research Unit, USDA ARS, 1815 N. University St., Peoria, IL, 61604, USA.

Onions can be damaged by Fusarium basal rot caused by the soilborne fungus Fusarium oxysporum f. sp. cepae (FOC). Read More

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http://dx.doi.org/10.1007/s10482-020-01404-7DOI Listing

A novel Type I methanotroph Methylolobus aquaticus gen. nov. sp. nov. isolated from a tropical wetland.

Antonie Van Leeuwenhoek 2020 Apr 8. Epub 2020 Apr 8.

BAIF Development Research Foundation, Central Research Station, Urulikanchan, Pune, 412202, India.

A novel gammaproteobacterial methanotroph; strain FWC3 was isolated from a tropical freshwater wetland sample collected near a beach in Western India. Strain FWC3 forms flesh pink/peach colored colonies, is non-motile, and the cells are present as diplococci, triads, tetracocci and aggregates. Strain FWC3 grows only on methane and methanol. Read More

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http://dx.doi.org/10.1007/s10482-020-01410-9DOI Listing
April 2020
1.806 Impact Factor

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

Antonie Van Leeuwenhoek 2020 Apr 1. Epub 2020 Apr 1.

Department of Microbiology, Radboud Universiteit, Nijmegen, The Netherlands.

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, Pla110, isolated from the surface of polystyrene particles incubated in the Baltic Sea. Read More

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http://dx.doi.org/10.1007/s10482-020-01406-5DOI Listing

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

Antonie Van Leeuwenhoek 2020 Apr 1. Epub 2020 Apr 1.

Department of Microbiology, Radboud Universiteit, Nijmegen, The Netherlands.

A novel planctomycetal strain, designated Pla85_3_4, 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. Read More

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http://dx.doi.org/10.1007/s10482-020-01407-4DOI Listing

Hymenobacter lutimineralis sp. nov., belonging to the family Hymenobacteraceae, isolated from zeolite.

Antonie Van Leeuwenhoek 2020 Mar 28. Epub 2020 Mar 28.

Department of Bioengineering and Nano-Bioengineering, Graduate School of Incheon National University, Incheon, 22012, Republic of Korea.

A red-pigmented bacterial strain, designated KIGAM108, within the family Hymenobacteraceae was isolated from zeolite in the Gampo-41 mine of the Gyeongju, Republic of Korea. This strain was a Gram-negative, strictly aerobic, non-spore forming, rod-shaped bacterium. Phylogenetic analysis of the 16S rRNA gene sequence of strain KIGAM108 found that it was related to the genus Hymenobacter, with similarities of 96. Read More

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http://dx.doi.org/10.1007/s10482-020-01402-9DOI Listing

Description of Azoarcus nasutitermitis sp. nov. and Azoarcus rhizosphaerae sp. nov., two nitrogen-fixing species isolated from termite nest and rhizosphere of Ficus religiosa.

Antonie Van Leeuwenhoek 2020 Mar 28. Epub 2020 Mar 28.

Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, 145, Xingda Rd, Taichung, 40227, Taiwan.

A polyphasic taxonomic approach was used to characterise two presumably novel bacteria, designated strains CC-YHH838 and CC-YHH848 isolated from termite nest and rhizosphere of Ficus religiosa, respectively. These two nitrogen-fixing strains were observed to be Gram-staining-negative, aerobic rod, and colonies were yellowish in color. Growth of strains was observed at 20-37 °C, pH 7-8, and in the presence of 1-2% NaCl. Read More

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http://dx.doi.org/10.1007/s10482-020-01401-wDOI Listing
March 2020
1.806 Impact Factor

Aureliella helgolandensis gen. nov., sp. nov., a novel Planctomycete isolated from a jellyfish at the shore of the island Helgoland.

Antonie Van Leeuwenhoek 2020 Mar 27. Epub 2020 Mar 27.

Department of Microbiology, Radboud University, Nijmegen, The Netherlands.

A novel planctomycetal strain, designated Q31a, was isolated from a jellyfish at the shore of the island Helgoland in the North Sea. The strain forms lucid white colonies on solid medium and displays typical characteristics of planctomycetal strains, such as division by budding, formation of rosettes, presence of crateriform structures, extracellular matrix or fibre and a holdfast structure. Q31a is mesophilic (temperature optimum 27 °C), neutrophilic (pH optimum 7. Read More

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http://dx.doi.org/10.1007/s10482-020-01403-8DOI Listing

Whole genome analysis calls for a taxonomic rearrangement of the genus Colwellia.

Antonie Van Leeuwenhoek 2020 Mar 26. Epub 2020 Mar 26.

Department of Pathogenic Biology, Jining Medical University, Jining, 272067, Shandong, People's Republic of China.

Microbial taxonomy is the foundation of microbiology and rapid advancements in DNA sequencing technologies are providing new approaches to address prevailing questions in this field. The family Colwelliaceae, which currently comprises four genera, is a diverse and globally abundant group of Gamaproteobacteria. Based on 14 publically available genomes of bacteria strains labeled as members of the family Colwelliaceae, phylogenomic analyses were conducted to revisiting the taxonomic status of this family both in the genus and species level. Read More

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http://dx.doi.org/10.1007/s10482-020-01405-6DOI Listing

Mesorhizobium alexandrii sp. nov., isolated from phycosphere microbiota of PSTs-producing marine dinoflagellate Alexandrium minutum amtk4.

Antonie Van Leeuwenhoek 2020 Mar 19. Epub 2020 Mar 19.

Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, Guangdong, People's Republic of China.

An aerobic, Gram-stain-negative, motile and rod-shaped bacterial strain, designated as Z1-4, was isolated from the phycosphere microbiota of marine dinoflagellate Alexandrium minutum that produces paralytic shellfish poisoning toxins. Phylogenetic analysis based on 16S rRNA gene sequences showed that the new isolate belongs to the genus Mesorhizobium, and it was closely related to Mesorhizobium waimense LMG 28228 and Mesorhizobium amorphae LMG 18977 with both 16S rRNA gene sequence similarities of 97.3%. Read More

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http://dx.doi.org/10.1007/s10482-020-01400-xDOI Listing

Characterization of plant growth-promoting alkalotolerant Alcaligenes and Bacillus strains for mitigating the alkaline stress in Zea mays.

Antonie Van Leeuwenhoek 2020 Mar 9. Epub 2020 Mar 9.

CSIR- National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226 001, India.

Intensification of sodic soil due to increasing pH is an emerging environmental issue. The present study aimed to isolate and characterise alkaline stress-tolerant and plant growth-promoting bacterial strains from moderately alkaline soil (pH 8-9), strongly alkaline soil (pH 9-10), and very strongly alkaline soil (> 10). Total 68 bacteria were isolated, and screened for multiple plant growth promoting (PGP) attributes. Read More

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http://dx.doi.org/10.1007/s10482-020-01399-1DOI Listing

Diketopiperazines and other bioactive compounds from bacterial symbionts of marine sponges.

Antonie Van Leeuwenhoek 2020 Mar 4. Epub 2020 Mar 4.

Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal.

Humanity faces great challenges, such as the rise of bacterial antibiotic resistance and cancer incidence. Thus, the discovery of novel therapeutics from underexplored environments, such as marine habitats, is fundamental. In this study, twelve strains from the phylum Firmicutes and thirty-four strains from the phylum Proteobacteria, isolated from marine sponges of the Erylus genus, collected in Portuguese waters, were tested for bioactivities and the secondary metabolites were characterised. Read More

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http://dx.doi.org/10.1007/s10482-020-01398-2DOI Listing
March 2020
1.806 Impact Factor

Insights into the pH-dependent, extracellular sucrose utilization and concomitant levan formation by Gluconobacter albidus TMW 2.1191.

Antonie Van Leeuwenhoek 2020 Mar 4. Epub 2020 Mar 4.

Lehrstuhl für Technische Mikrobiologie, Technische Universität München, Gregor-Mendel-Straße 4, 85354, Freising, Germany.

Many bacteria and archaea produce the polydisperse fructose polymer levan from sucrose upon biofilm formation via extracellular levansucrases (EC 2.4.1. Read More

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http://dx.doi.org/10.1007/s10482-020-01397-3DOI Listing

Planococcus lenghuensis sp. nov., an oil-degrading bacterium isolated from petroleum-contaminated soil.

Antonie Van Leeuwenhoek 2020 Jun 29;113(6):839-850. Epub 2020 Feb 29.

Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Gansu Province, Lanzhou, 730000, China.

A Gram-staining-positive and aerobic coccus with the ability to degrade petroleum bacterium, designated Y42, was isolated from the Lenghu oil field located in the northern margin of the Qaidam Basin. Phylogenetic and signature nucleotides analyses revealed that strain Y42 belongs to the genus Planococcus. The multiple sequence alignments of 16S rRNA and housekeeping genes showed that strain Y42 formed a distinct lineage with the other Planococcus clade. Read More

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http://dx.doi.org/10.1007/s10482-020-01394-6DOI Listing
June 2020
1.806 Impact Factor

Genomic taxonomy of the Mediterranei clade of the genus Vibrio (Gammaproteobacteria).

Antonie Van Leeuwenhoek 2020 Jun 27;113(6):851-859. Epub 2020 Feb 27.

CIAD, A.C., Mazatlán Unit for Aquaculture, AP. 711, 82000, Mazatlán, Sinaloa, Mexico.

The first genomic study of Mediterranei clade using five type strains (V. mediterranei, V. maritimus, V. Read More

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http://dx.doi.org/10.1007/s10482-020-01396-4DOI Listing

Catching speciation in the act-act 2: Metschnikowia lacustris sp. nov., a sister species to Metschnikowia dekortorum.

Antonie Van Leeuwenhoek 2020 Jun 25;113(6):753-762. Epub 2020 Feb 25.

Department of Biology, University of Western Ontario, London, ON, N6A 5B7, Canada.

The isolation of a single yeast strain in the clade containing Metschnikowia dekortorum, in the Amazon biome of Brazil, incited us to re-examine the species boundaries within the clade. The strain (UFMG-CM-Y6306) was difficult to position relative to neighbouring species using standard barcode sequences (ITS-D1/D2 rRNA gene region). Mating took place freely with α strains of M. Read More

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http://dx.doi.org/10.1007/s10482-020-01395-5DOI Listing

Euwallacea perbrevis (Coleoptera: Curculionidae: Scolytinae), a confirmed pest on Acacia crassicarpa in Riau, Indonesia, and a new fungal symbiont; Fusarium rekanum sp. nov.

Antonie Van Leeuwenhoek 2020 Jun 21;113(6):803-823. Epub 2020 Feb 21.

Department of Biochemistry, Genetics and Microbiology (BGM), Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Private Bag X20, Pretoria, 0028, South Africa.

Non-native Acacia plantations in Indonesia were first reported to be infested by a native ambrosia beetle species, identified as Euwallacea fornicatus in 1993. Recently the level of infestation in these plantations by ambrosia beetles has steadily increased. The recent redefinition of the taxonomic parameters of the Euwallacea fornicatus species complex has resulted in the identity of the ambrosia beetle species in these plantations becoming unclear. Read More

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http://dx.doi.org/10.1007/s10482-020-01392-8DOI Listing

Hyphopichia lachancei, f.a., sp. nov., a yeast species from diverse origins.

Antonie Van Leeuwenhoek 2020 Jun 21;113(6):773-778. Epub 2020 Feb 21.

National Collection of Agricultural and Industrial Microorganisms, Faculty of Food Science, Szent István University, Somlói út 14-16, Budapest, 1118, Hungary.

Three strains originating from insect frass in South Africa, yellow foxglove in Hungary and soil in France, were characterised phenotypically and by sequencing of the D1/D2 domain of the large subunit and the ITS1-5.8S-ITS2 (ITS)-region of the rRNA gene. The strains have identical D1/D2 domain sequences and only one strain shows a 1 bp indel in a 9 bp homopolymer A/T repeat within the ITS-region. Read More

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http://dx.doi.org/10.1007/s10482-020-01387-5DOI Listing

Insights into the microbiome of farmed Asian sea bass (Lates calcarifer) with symptoms of tenacibaculosis and description of Tenacibaculum singaporense sp. nov.

Antonie Van Leeuwenhoek 2020 Jun 20;113(6):737-752. Epub 2020 Feb 20.

Temasek Life Sciences Laboratory, 1 Research Link, Singapore, 117604, Republic of Singapore.

Outbreaks of diseases in farmed fish remain a recurring problem despite the development of vaccines and improved hygiene standards on aquaculture farms. One commonly observed bacterial disease in tropical aquaculture of the South-East Asian region is tenacibaculosis, which is attributed to members of the genus Tenacibaculum (family Flavobacteriaceae, phylum Bacteroidetes), most notably Tenacibaculum maritimum. The impact of tenacibaculosis on the fish microbiota remains poorly understood. Read More

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http://dx.doi.org/10.1007/s10482-020-01391-9DOI Listing
June 2020
1.806 Impact Factor

Genome rearrangements and megaplasmid loss in the filamentous bacterium Kitasatospora viridifaciens are associated with protoplast formation and regeneration.

Antonie Van Leeuwenhoek 2020 Jun 14;113(6):825-837. Epub 2020 Feb 14.

Molecular Biotechnology, Institute of Biology, Leiden University, P.O. Box 9505, 2300 RA, Leiden, The Netherlands.

Filamentous Actinobacteria are multicellular bacteria with linear replicons. Kitasatospora viridifaciens DSM 40239 contains a linear 7.8 Mb chromosome and an autonomously replicating plasmid KVP1 of 1. Read More

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http://dx.doi.org/10.1007/s10482-020-01393-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7188733PMC

Genome-based classification of Micromonospora craterilacus sp. nov., a novel actinobacterium isolated from Nemrut Lake.

Antonie Van Leeuwenhoek 2020 Jun 14;113(6):791-801. Epub 2020 Feb 14.

Department of Biology, Faculty of Science and Arts, Ondokuz Mayis University, Samsun, Turkey.

A novel actinobacterial strain, designated NA12, was isolated from coastal sediment sample of Nemrut Lake, a crater lake in eastern Anatolia, Turkey. The taxonomic position of the strain was established using a polyphasic approach. Cultural and chemotaxonomic characteristics of the strain were consistent with its classification within the family Micromonosporaceae. Read More

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http://dx.doi.org/10.1007/s10482-020-01390-wDOI Listing

Redox potential change by the cystine importer affected on enzymatic antioxidant protection in Deinococcus geothermalis.

Antonie Van Leeuwenhoek 2020 Jun 28;113(6):779-790. Epub 2020 Jan 28.

Department of Biology, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Korea.

Radiation resistant bacteria genus Deinococcus species were well studied on DNA repair and anti-oxidative stress response mechanisms. There are many protection factors as enzymatic and nonenzymatic involved. One of them is intracellular redox potential as like thiol compounds including cysteine acts as primary protectant against oxidation stress. Read More

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http://dx.doi.org/10.1007/s10482-020-01388-4DOI Listing

Correction to: Hymenobacter oligotrophus sp. nov., isolated from a contaminated agar plate.

Antonie Van Leeuwenhoek 2020 06;113(6):861

China Center for Type Culture Collection (CCTCC), College of Life Sciences, Wuhan University, Wuhan, 430072, China.

In the original publication, the deposit number of strain sh-6 was incorrectly published as "CCTCC AB 2016064" throughout the article. Read More

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http://dx.doi.org/10.1007/s10482-020-01389-3DOI Listing

Hankyongella ginsenosidimutans gen. nov., sp. nov., isolated from mineral water with ginsenoside coverting activity.

Antonie Van Leeuwenhoek 2020 May 24;113(5):719-727. Epub 2020 Jan 24.

Department of Biotechnology, Hankyoung National University, 327 Jungang-ro, Anseong-si, Gyeonggi-do, 17579, Republic of Korea.

In this study, a novel ginsenoside transforming bacterium, strain W1-2-3, was isolated from mineral water. The 16S rRNA gene sequence analysis showed that strain W1-2-3 shares 93.7-92. Read More

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http://dx.doi.org/10.1007/s10482-020-01385-7DOI Listing
May 2020
1.806 Impact Factor

Lysobacter prati sp. nov., isolated from a plateau meadow sample.

Antonie Van Leeuwenhoek 2020 Jun 24;113(6):763-772. Epub 2020 Jan 24.

State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.

A novel proteobacterial strain designated SYSU H10001 was isolated from a soil sample collected from plateau meadow in Hongyuan county, Sichuan province, south-western China. The taxonomic position of the strain was investigated using a polyphasic approach. On the basis of 16S rRNA gene sequence similarities and phylogenetic analysis, strain SYSU H10001 was most closely related to Lysobacter soli KCTC 22011 (98. Read More

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http://dx.doi.org/10.1007/s10482-020-01386-6DOI Listing

Bacterial diversity in deep-sea sediments under influence of asphalt seep at the São Paulo Plateau.

Antonie Van Leeuwenhoek 2020 May 16;113(5):707-717. Epub 2020 Jan 16.

Institute of Oceanography, University of São Paulo, Praça do Oceanográfico, 191, São Paulo, CEP: 05508-120, Brazil.

Here we investigated the diversity of bacterial communities from deep-sea surface sediments under influence of asphalt seeps at the Sao Paulo Plateau using next-generation sequencing method. Sampling was performed at North São Paulo Plateau using the human occupied vehicle Shinkai 6500 and her support vessel Yokosuka. The microbial diversity was studied at two surficial sediment layers (0-1 and 1-4 cm) of five samples collected in cores in water depths ranging from 2456 to 2728 m. Read More

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http://dx.doi.org/10.1007/s10482-020-01384-8DOI Listing

Apical but not sub-apical hyphal compartments are self-sustaining in growth.

Antonie Van Leeuwenhoek 2020 May 9;113(5):697-706. Epub 2020 Jan 9.

Microbiology, Department of Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands.

It was recently demonstrated that apical compartments of Aspergillus niger hyphae are self-sustaining in growth. This was shown by assessing the growth rate of individual hyphae before and after dissection of the second compartment. Using the same methodology, it is here demonstrated that single apical compartments of the septate fungi Penicillium chrysogenum and Schizophyllum commune as well as the 500-µm-apical region of the non-septate fungus Rhizopus stolonifer are also self-sustaining in growth. Read More

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http://dx.doi.org/10.1007/s10482-020-01383-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7138781PMC

Correction to: Description of Wenzhouxiangella salilacus sp. nov., a moderate halophilic bacterium isolated from a salt lake in Xinjiang Province, China.

Antonie Van Leeuwenhoek 2020 03;113(3):447

College of Life Sciences, Zhejiang University, Hangzhou, 310058, People's Republic of China.

In the original publication of the article, the deposit accession numbers of strain 15181T in the acknowledgment section were incorrectly provided as "KCTC 62172T and MCCC 1K03442T". Read More

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http://dx.doi.org/10.1007/s10482-019-01379-0DOI Listing
March 2020
1.806 Impact Factor

Virulence factors of Paracoccidioides brasiliensis as therapeutic targets: a review.

Antonie Van Leeuwenhoek 2020 May 4;113(5):593-604. Epub 2020 Jan 4.

Universidade Federal de Alfenas, Alfenas, Brazil.

Paracoccidiodomycosis (PCM) is a systemic mycosis caused by the fungus Paracoccidioides brasiliensis and Paracoccidioides lutzii. The disease requires long and complicated treatment. The aim of this review is to address the fungal virulence factors that could be the target of the development of new drugs for PCM treatment. Read More

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http://dx.doi.org/10.1007/s10482-019-01382-5DOI Listing

Actinomadura physcomitrii sp. nov., a novel actinomycete isolated from moss [Physcomitrium sphaericum (Ludw) Fuernr].

Antonie Van Leeuwenhoek 2020 May 3;113(5):677-685. Epub 2020 Jan 3.

Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, Harbin, 150030, China.

A novel endophytic actinomycete, designated strain LD22, was isolated from moss [Physcomitrium sphaericum (Ludw) Fuernr] collected from Yunnan Province, Southwest China. A polyphasic taxonomic study was carried out to establish the status of this strain. Morphological and chemotaxonomic characteristics of strain LD22 confirmed the affiliation of the isolate to the genus Actinomadura. Read More

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http://dx.doi.org/10.1007/s10482-019-01380-7DOI Listing