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Current status of molecular classification of the phytoplasmas.
Phytoplasmas for which 16S rDNA sequences are available have been classified into 20 major phylogenetic groups or subclades. Further phytoplasmas have been assigned to these groups, according toExpand
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'Candidatus Phytoplasma asteris', a novel phytoplasma taxon associated with aster yellows and related diseases.
Aster yellows (AY) group (16SrI) phytoplasmas are associated with over 100 economically important diseases worldwide and represent the most diverse and widespread phytoplasma group. Strains thatExpand
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Classification of phytoplasma strains in the elm yellows group (16SrV) and proposal of 'Candidatus Phytoplasma ulmi' for the phytoplasma associated with elm yellows.
Elm yellows group (16SrV) phytoplasmas, which are associated with devastating diseases in elm, grapevine, blackberry, cherry, peach and several other plant species in America, Europe and Asia,Expand
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Ribosomal protein gene-based phylogeny for finer differentiation and classification of phytoplasmas.
Extensive phylogenetic analyses were performed based on sequences of the 16S rRNA gene and two ribosomal protein (rp) genes, rplV (rpl22) and rpsC (rps3), from 46 phytoplasma strains representing 12Expand
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'Candidatus Phytoplasma', a taxon for the wall-less, non-helical prokaryotes that colonize plant phloem and insects.
The trivial name 'phytoplasma' has been adopted to collectively name wall-less, non-helical prokaryotes that colonize plant phloem and insects, which were formerly known as mycoplasma-like organisms.Expand
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'Candidatus Phytoplasma cynodontis', the phytoplasma associated with Bermuda grass white leaf disease.
Bermuda grass white leaf (BGWL) is a destructive, phytoplasmal disease of Bermuda grass (Cynodon dactylon). The causal pathogen, the BGWL agent, differs from other phytoplasmas that cluster in theExpand
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'Candidatus Phytoplasma spartii', 'Candidatus Phytoplasma rhamni' and 'Candidatus Phytoplasma allocasuarinae', respectively associated with spartium witches'-broom, buckthorn witches'-broom and
Spartium witches'-broom (SpaWB), buckthorn witches'-broom (BWB) and allocasuarina yellows (AlloY) are witches'-broom and yellows diseases of Spartium junceum (Spanish broom), Rhamnus catharticusExpand
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'Candidatus Phytoplasma convolvuli', a new phytoplasma taxon associated with bindweed yellows in four European countries.
Plants of Convolvulus arvensis exhibiting symptoms of undersized leaves, shoot proliferation and yellowing, collectively defined as bindweed yellows, were sampled in different regions of Europe andExpand
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Restriction fragment length polymorphism (RFLP), sequence analysis of PCR-amplified ribosomal DNA and chromosome size determination by pulsed-field gel electrophoresis (PFGE) were used toExpand
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Changes in the composition of volatile compounds of Spartium junceum induced by the phytoplasmal disease, Spartium witches’‐broom
Abstract In southern Italy, Spartium junceum (Spanish broom) is severely affected by a phytoplasmal disease, Spartium witches’‐broom (SpaWB). The volatile fractions extracted from flowers of healthyExpand
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