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Genetic diversity of European phytoplasmas of the 16SrV taxonomic group and proposal of ‘Candidatus Phytoplasma rubi’

Citation
Malembic-Maher et al. (2011). International Journal of Systematic and Evolutionary Microbiology 61 (9)
Names
Ca. Phytoplasma rubi
Abstract
In addition to the grapevine flavescence dorée phytoplasmas, other members of taxonomic group 16SrV phytoplasmas infect grapevines, alders and species of the genera Clematis and Rubus in Europe. In order to investigate which phytoplasmas constitute discrete, species-level taxa, several strains were analysed by comparing their 16S rRNA gene sequences and a set of five housekeeping genes. Whereas 16S rRNA gene sequence similarity values were >97.5 %, the proposed threshold to distinguish two ‘C

‘Candidatus Pasteuria aldrichii’, an obligate endoparasite of the bacterivorous nematode Bursilla

Citation
Giblin-Davis et al. (2011). International Journal of Systematic and Evolutionary Microbiology 61 (9)
Names
Ca. Pasteuria aldrichii
Abstract
A novel bacterium of the genus Pasteuria was discovered parasitizing bacterivorous nematodes of the genus Bursilla, in selected bermudagrass (Cynodon) field plots in Davie, FL, USA. Soil containing this bacterium was sampled and supplied with bi-weekly inoculations of cultured species of the genus Bursilla in order to build and maintain a source of endospores for continuous in vivo conservation of the bacteria for further study and characterization. 16S rRNA gene sequence similarities supported

First Report of ‘Candidatus Liberibacter solanacearum’ Naturally Infecting Tomatoes in the State of Mexico, Mexico

Citation
Ling et al. (2011). Plant Disease 95 (8)
Names
“Liberibacter solanacearum”
Abstract
In January 2011, tomato (Solanum lycopersicum) plants exhibiting stunting, yellow mosaic, short, chlorotic leaves, aborted flowers, and reduced-size fruits, symptoms similar to those exhibited by plants infected by ‘Candidatus Liberibacter solanacearum’ (2), were observed in approximately 5% of tomato plants in greenhouses in Jocotitlan in the State of Mexico, Mexico. Occasional plant recovery was also observed. Tomato plants in this facility were previously shown to be infected by Mexican papi