Michael Kube
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View article: Key role of <i>Desulfobacteraceae</i> in C/S cycles of marine sediments is based on congeneric catabolic-regulatory networks
Key role of <i>Desulfobacteraceae</i> in C/S cycles of marine sediments is based on congeneric catabolic-regulatory networks Open
Marine sediments are highly bioactive habitats, where sulfate-reducing bacteria contribute substantially to seabed carbon cycling by oxidizing ~77 Tmol C org year −1 . This remarkable activity is largely attributable to the deltaproteobact…
View article: The 16SrXII-P Phytoplasma GOE Is Separated from Other Stolbur Phytoplasmas by Key Genomic Features
The 16SrXII-P Phytoplasma GOE Is Separated from Other Stolbur Phytoplasmas by Key Genomic Features Open
The syndrome “bassess richesses” is a vector-borne disease of sugar beet in Germany. The gammaproteobacterium ‘Candidatus Arsenophonus phytopathogenicus’ causes reduced sugar content and biomass, growth abnormalities, and yellowing. Co-inf…
View article: The complete genome of <i>Mycoplasmoides cavipharyngis</i> strain 117C, a close relative of hemotrophic mycoplasma
The complete genome of <i>Mycoplasmoides cavipharyngis</i> strain 117C, a close relative of hemotrophic mycoplasma Open
Mycoplasmoides cavipharyngis is one of the closest relatives of the highly host-adapted and uncultivable hemotrophic mycoplasma. The complete genome of strain 117C was constructed from long-reads derived from Pacific Biosciences single-mol…
View article: The complete genome sequence of the stolbur pathogen “ <i>Candidatus</i> Phytoplasma solani” from <i>Pentastiridius leporinus</i>
The complete genome sequence of the stolbur pathogen “ <i>Candidatus</i> Phytoplasma solani” from <i>Pentastiridius leporinus</i> Open
The complete genome of “ Candidatus Phytoplasma solani” GOE was obtained from the infected vector Pentastiridius leporinus by single-molecule real-time sequencing. This 16SrXII-P phytoplasma is associated with the economically important su…
View article: Load of the ash dieback pathogen hymenoscyphus fraxineus differs in soil
Load of the ash dieback pathogen hymenoscyphus fraxineus differs in soil Open
The ascomycete Hymenoscyphus fraxineus causes the devastating ash dieback disease of European ash ( Fraxinus excelsior L.). Spore traps are often used to measure the amount of ascospores in the environment, but the pathogen-load of the soi…
View article: The complete genome of “ <i>Candidatus</i> Phytoplasma fraxini” AshY1 from the ash yellows group
The complete genome of “ <i>Candidatus</i> Phytoplasma fraxini” AshY1 from the ash yellows group Open
The complete genome of “ Candidatus Phytoplasma fraxini” AshY1, originating from Fraxinus americana in North America, was assembled using long reads from single-molecule real-time sequencing technology. The chromosome of 598 kb provides in…
View article: Divergence within the Taxon ‘Candidatus Phytoplasma asteris’ Confirmed by Comparative Genome Analysis of Carrot Strains
Divergence within the Taxon ‘Candidatus Phytoplasma asteris’ Confirmed by Comparative Genome Analysis of Carrot Strains Open
Phytoplasmas are linked to diseases in hundreds of economically important crops, including carrots. In carrots, phytoplasmosis is associated with leaf chlorosis and necrosis, coupled with inhibited root system development, ultimately leadi…
View article: Differential gene expression of Hymenoscyphus fraxineus grown on Fraxinus excelsior and F. mandshurica supplemented media
Differential gene expression of Hymenoscyphus fraxineus grown on Fraxinus excelsior and F. mandshurica supplemented media Open
Ash dieback is caused by the invasive fungal species Hymenoscyphus fraxineus and leads to the loss of the common ash ( Fraxineus excelsior ) in many areas. In contrast, the pathogen seems to colonize the local ash species Fraxinus mandshur…
View article: Genome Comparison of ‘Candidatus Phytoplasma rubi’ with Genomes of Other 16SrV Phytoplasmas Highlights Special Group Features
Genome Comparison of ‘Candidatus Phytoplasma rubi’ with Genomes of Other 16SrV Phytoplasmas Highlights Special Group Features Open
Phytoplasmas are associated with important bacterial diseases, causing severe symptoms in agricultural and ornamental crops. ‘Candidatus Phytoplasma rubi’, associated with the Rubus stunt in raspberries (Rubus idaeus) and blackberries (Rub…
View article: Complete Genome of “ <i>Candidatus</i> Phytoplasma rubi” RS, a Phytopathogenic Bacterium Associated with <i>Rubus</i> Stunt Disease
Complete Genome of “ <i>Candidatus</i> Phytoplasma rubi” RS, a Phytopathogenic Bacterium Associated with <i>Rubus</i> Stunt Disease Open
The phytoplasma “ Candidatus Phytoplasma rubi” is associated with Rubus stunt disease. The complete genome was determined by assembling Oxford Nanopore Technologies system-derived long reads, with short-read polishing with Illumina reads. …
View article: Phytoplasma, proteobacterium and fungus in single and mixed infections of sugar beet in central Europe
Phytoplasma, proteobacterium and fungus in single and mixed infections of sugar beet in central Europe Open
The “basses richesses” syndrome (SBR) and rubbery taproot disease (RTD) associated with ‘Candidatus Arsenophonus phytopathogenicus’ and ‘Ca. Phytoplasma solani’, respectively are hampering the sugar beet production in Europe. A series of e…
View article: Revision of the ‘Candidatus Phytoplasma’ species description guidelines
Revision of the ‘Candidatus Phytoplasma’ species description guidelines Open
The genus ‘ Candidatus Phytoplasma’ was proposed to accommodate cell wall-less bacteria that are molecularly and biochemically incompletely characterized, and colonize plant phloem and insect vector tissues. This provisional classification…
View article: Supplementary Material for: The Genome Reduction Excludes the Ribosomal Rescue System in <b><i>Acholeplasmataceae</i></b>
Supplementary Material for: The Genome Reduction Excludes the Ribosomal Rescue System in <b><i>Acholeplasmataceae</i></b> Open
The trans-translation process is a ribosomal rescue system for stalled ribosomes processing truncated mRNA. The genes ssrA and smpB fulfil the key functions in most bacteria, but some species have either lost these genes or the function of…
View article: The Genome Reduction Excludes the Ribosomal Rescue System in <b><i>Acholeplasmataceae</i></b>
The Genome Reduction Excludes the Ribosomal Rescue System in <b><i>Acholeplasmataceae</i></b> Open
The trans-translation process is a ribosomal rescue system for stalled ribosomes processing truncated mRNA. The genes ssrA and smpB fulfil the key functions in most bacteria, but some species have either lost these genes or the function of…
View article: Application of TaqMan Real-Time PCR for Detecting ‘Candidatus Arsenophonus Phytopathogenicus’ Infection in Sugar Beet
Application of TaqMan Real-Time PCR for Detecting ‘Candidatus Arsenophonus Phytopathogenicus’ Infection in Sugar Beet Open
The γ-proteobacterium ‘Candidatus Arsenophonus phytopathogenicus’ is assigned as the major pathogen of “Syndrome des basses richesses”, a sugar beet disease characterised by a reduction in the sugar content of taproots and biomass yield. D…
View article: Multilocus Genotyping of ‘Candidatus Phytoplasma solani’ Associated with Rubbery Taproot Disease of Sugar Beet in the Pannonian Plain
Multilocus Genotyping of ‘Candidatus Phytoplasma solani’ Associated with Rubbery Taproot Disease of Sugar Beet in the Pannonian Plain Open
Rubbery taproot disease of sugar beet (RTD), associated with ‘Candidatus Phytoplasma solani’, appeared in 2020 on an epidemic scale in northern Serbia and southern Slovakia, situated at opposite edges of the Pannonian Plain. In the affecte…
View article: Genomic Analysis of the Endophytic Stenotrophomonas Strain 169 Reveals Features Related to Plant-Growth Promotion and Stress Tolerance
Genomic Analysis of the Endophytic Stenotrophomonas Strain 169 Reveals Features Related to Plant-Growth Promotion and Stress Tolerance Open
Plant-associated Stenotrophomonas isolates have great potential for plant growth promotion, especially under stress conditions, due to their ability to promote tolerance to abiotic stresses such as salinity or drought. The endophytic strai…
View article: Genetic variation, phylogenetic relationship and spatial distribution of ‘Candidatus Phytoplasma ulmi’ strains in Germany
Genetic variation, phylogenetic relationship and spatial distribution of ‘Candidatus Phytoplasma ulmi’ strains in Germany Open
A recent survey in Germany revealed the wide presence of ‘ Candidatus Phytoplasma ulmi’ in native elm stands. Accessions were studied for their genetic variability and phylogenetic relationship based on the conserved groEL and the variable…
View article: Analyzing Ash Leaf-Colonizing Fungal Communities for Their Biological Control of Hymenoscyphus fraxineus
Analyzing Ash Leaf-Colonizing Fungal Communities for Their Biological Control of Hymenoscyphus fraxineus Open
The invasive ascomycete Hymenoscyphus fraxineus has been threatening Fraxinus excelsior populations throughout Europe for over two decades. Since the infection and first colonization by the pathogen occurs in leaves, leaf-colonizing microo…
View article: Rubbery Taproot Disease of Sugar Beet in Serbia Associated with ‘<i>Candidatus</i> Phytoplasma solani’
Rubbery Taproot Disease of Sugar Beet in Serbia Associated with ‘<i>Candidatus</i> Phytoplasma solani’ Open
Rubbery taproot disease (RTD) of sugar beet was observed in Serbia for the first time in the 1960s. The disease was already described in neighboring Bulgaria and Romania at the time but it was associated with abiotic factors. In this study…
View article: Draft Genome Sequence of “ <i>Candidatus</i> Phytoplasma pruni” (X-Disease Group, Subgroup 16SrIII-B) Strain ChTDIII from Argentina
Draft Genome Sequence of “ <i>Candidatus</i> Phytoplasma pruni” (X-Disease Group, Subgroup 16SrIII-B) Strain ChTDIII from Argentina Open
Herein, we report the draft genome sequence of “ Candidatus Phytoplasma pruni” strain ChTDIII (subgroup 16SrIII-B). The final assembly consists of 790,517 nucleotides organized in 67 contigs (minimal size, 1 kb), with a G+C content of 29.4…
View article: A Comparative Analysis of Ash Leaf-Colonizing Bacterial Communities Identifies Putative Antagonists of Hymenoscyphus fraxineus
A Comparative Analysis of Ash Leaf-Colonizing Bacterial Communities Identifies Putative Antagonists of Hymenoscyphus fraxineus Open
In the last few years, the alarming spread of Hymenoscyphus fraxineus, the causal agent of ash dieback, has resulted in a substantial threat to native ash stands in central and northern Europe. Since leaves and leaf petioles are the primar…
View article: Widespread occurrence of ‘Candidatus Phytoplasma ulmi’ in elm species in Germany
Widespread occurrence of ‘Candidatus Phytoplasma ulmi’ in elm species in Germany Open
Background ‘ Candidatus Phytoplasma ulmi’ is the agent associated with elm yellows and has been categorised in the European Union as a quarantine pathogen. For central and northern European countries, information on the occurrence and dist…
View article: Widespread occurrence of 'Candidatus Phytoplasma ulmi' in elm species in Germany
Widespread occurrence of 'Candidatus Phytoplasma ulmi' in elm species in Germany Open
Background: Candidatus Phytoplasma ulmi' is the agent associated with elm yellows and has been categorised in the European Union as a quarantine pathogen. For central and northern European countries, information on the occurrence and distr…
View article: Widespread occurrence of Candidatus Phytoplasma ulmi infecting elm species in Germany
Widespread occurrence of Candidatus Phytoplasma ulmi infecting elm species in Germany Open
Background: Candidatus Phytoplasma ulmi is the causative agent of elm yellows and has been categorised in the European Union as a quarantine pathogen in the past. For central and northern European countries, information on the occurrence a…
View article: Chamomile Floricolous Downy Mildew Caused by <i>Peronospora radii</i>
Chamomile Floricolous Downy Mildew Caused by <i>Peronospora radii</i> Open
Floricolous downy mildews (Peronospora, oomycetes) are a small, monophyletic group of mostly inconspicuous plant pathogens that induce symptoms exclusively on flowers. Characterization of this group of pathogens, and information about thei…
View article: A universal PCR assay amplifying the unique malic enzyme of phytoplasmas
A universal PCR assay amplifying the unique malic enzyme of phytoplasmas Open
Malic enzyme encoded by the gene scfA belongs to the core set of housekeeping genes encoded by phytoplasmas. It enables the conversion of malate to pyruvate, an essential step in the unique pathway of phytoplasmas resulting in the generati…
View article: Alder yellows phytoplasmas in <i>Alnus</i> species in Serbia
Alder yellows phytoplasmas in <i>Alnus</i> species in Serbia Open
The presence of alder yellows and “flavescence dorée” phytoplasmas (16SrV-C) together with their insect vectors have already been reported in Serbia and the Balkans, as well as have similar phytoplasmas in clematis. The presence of alder y…