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‘Candidatus Phytoplasma pruni’, a novel taxon associated with X-disease of stone fruits, Prunus spp.: multilocus characterization based on 16S rRNA, secY, and ribosomal protein genes

Citation
Davis et al. (2013). International Journal of Systematic and Evolutionary Microbiology 63 (Pt_2)
Names
Ca. Phytoplasma pruni
Abstract
X-disease is one of the most serious diseases known in peach (Prunus persica). Based on RFLP analysis of 16S rRNA gene sequences, peach X-disease phytoplasma strains from eastern and western United States and eastern Canada were classified in 16S rRNA gene RFLP group 16SrIII, subgroup A. Phylogenetic analyses of 16S rRNA gene sequences revealed that the X-disease phytoplasma strains formed a distinct subclade within the phytoplasma clade, supporting the hypothesis that they represented a lineage

‘Candidatus Phytoplasma malaysianum’, a novel taxon associated with virescence and phyllody of Madagascar periwinkle (Catharanthus roseus)

Citation
Nejat et al. (2013). International Journal of Systematic and Evolutionary Microbiology 63 (Pt_2)
Names
Ca. Phytoplasma malaysianum
Abstract
This study addressed the taxonomic position and group classification of a phytoplasma responsible for virescence and phyllody symptoms in naturally diseased Madagascar periwinkle plants in western Malaysia. Unique regions in the 16S rRNA gene from the Malaysian periwinkle virescence (MaPV) phytoplasma distinguished the phytoplasma from all previously described ‘ Candidatus

Isolation of an aerobic sulfur oxidizer from the SUP05/Arctic96BD-19 clade

Citation
Marshall, Morris (2013). The ISME Journal 7 (2)
Names
Pseudothioglobus singularis Ts Pseudothioglobus Ca. Thioglobus singularis
Abstract
Abstract Bacteria from the uncultured SUP05/Arctic96BD-19 clade of gamma proteobacterial sulfur oxidizers (GSOs) have the genetic potential to oxidize reduced sulfur and fix carbon in the tissues of clams and mussels, in oxygen minimum zones and throughout the deep ocean (>200 m). Here, we report isolation of the first cultured representative from this GSO clade. Closely related cultures were obtained from surface waters in Puget Sound and from the deep chlorophyll maximum

Wide Distribution and Genetic Diversity of “Candidatus Neoehrlichia mikurensis” in Rodents from China

Citation
Li et al. (2013). Applied and Environmental Microbiology 79 (3)
Names
Ca. Neoehrlichia mikurensis
Abstract
ABSTRACT “ Candidatus Neoehrlichia mikurensis” was detected by PCR in 4.0% (34/841) of the rodents tested in this study. The 34 rodents represented nine species from seven regions of China. Phylogenetic analyses based on the partial groEL and nearly entire 16S rRNA gene sequences of the agent revealed genetic diversity, which was correlated with its geographic origins.

‘Candidatus Phytoplasma balanitae’ associated with witches’ broom disease of Balanites triflora

Citation
Win et al. (2013). International Journal of Systematic and Evolutionary Microbiology 63 (Pt_2)
Names
Ca. Phytoplasma balanitae
Abstract
A phytoplasma was identified in naturally infected wild Balanites triflora plants exhibiting typical witches’ broom symptoms (Balanites witches’ broom: BltWB) in Myanmar. The 16S rRNA gene sequence revealed that BltWB phytoplasma had the highest similarity to that of ‘Candidatus Phytoplasma ziziphi’ and it was also closely related to that of ‘Candidatus Phytoplasma ulmi ’. Phylogenetic analysis of the 16S rRNA gene sequences indicated th

First Report of Candidatus Liberibacter asiaticus Associated with Citrus Huanglongbing in California

Citation
Kumagai et al. (2013). Plant Disease 97 (2)
Names
Ca. Liberibacter asiaticus
Abstract
Huanglongbing (HLB), also known as citrus greening, is one of the most destructive citrus diseases worldwide and is seen as a major threat to the multimillion dollar citrus industry in California. The vector of the two bacterial species associated with this disease, Candidatus Liberibacter asiaticus and Ca. L. americanus, is the Asian citrus psyllid (ACP), Diaphorina citri (4). ACP was detected in California in August of 2008 and has since been detected in nine counties in southern California.

First Report of Candidatus Phytoplasma solani on Blackberry (Rubus fruticosus) in Bulgaria

Citation
Bobev et al. (2013). Plant Disease 97 (2)
Names
Ca. Phytoplasma solani
Abstract
While performing a routine field survey on 2-year-old canes of Rubus fruticosus (cv. Evergreen Thornless) in the region of Plovdiv (central southern Bulgaria), severe stunting of single or grouped plants (3 to 4 in a row) was found in late August of 2009. It was noteworthy that the leaves of these plants were curved upwards and stayed green until the end of the season. The bushy aspect of the diseased plants led to the assumption of a phytoplasma origin; therefore, specific PCR and sequence bas