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Diversity of “ Candidatus Liberibacter asiaticus,” Based on the omp Gene Sequence

Citation
Bastianel et al. (2005). Applied and Environmental Microbiology 71 (11)
Names
Ca. Liberibacter asiaticus
Abstract
ABSTRACT Huanglongbing (yellow dragon disease) is a destructive disease of citrus. The etiological agent is a noncultured, phloem-restricted alpha-proteobacterium, “ Candidatus Liberibacter africanus” in Africa and “ Candidatus Liberibacter asiaticus” in Asia. In this study, we used an omp -based PCR-restriction fragment length polymorphism (RFLP) approach to analyze the genetic variability of “

‘Candidatus Liberibacter americanus’, associated with citrus huanglongbing (greening disease) in São Paulo State, Brazil

Citation
Teixeira et al. (2005). International Journal of Systematic and Evolutionary Microbiology 55 (5)
Names
Ca. Liberibacter americanus
Abstract
Symptoms of huanglongbing (HLB) were reported in São Paulo State (SPS), Brazil, in March 2004. In Asia, HLB is caused by ‘Candidatus Liberibacter asiaticus' and in Africa by ‘Candidatus Liberibacter africanus’. Detection of the liberibacters is based on PCR amplification of their 16S rRNA gene with specific primers. Leaves with blotchy mottle symptoms characteristic of HLB were sampled in several farms of SPS and tested for the presence of liberibacters. ‘Ca. L. asiaticus' was detected in a smal

‘Candidatus Protochlamydia amoebophila’, an endosymbiont of Acanthamoeba spp

Citation
Collingro et al. (2005). International Journal of Systematic and Evolutionary Microbiology 55 (5)
Names
Ca. Protochlamydia amoebophila
Abstract
The obligately intracellular coccoid bacterium UWE25, a symbiont of Acanthamoeba spp., was previously identified as being related to chlamydiae based upon the presence of a chlamydia-like developmental cycle and its 16S rRNA gene sequence. Analysis of its complete genome sequence demonstrated that UWE25 shows many characteristic features of chlamydiae, including dependency on host-derived metabolites, composition of the cell envelope and the ability to thrive as an energy parasite within the cel

Phylogenetic positions of ‘Candidatus Phytoplasma asteris' and Spiroplasma kunkelii as inferred from multiple sets of concatenated core housekeeping proteins

Citation
Zhao et al. (2005). International Journal of Systematic and Evolutionary Microbiology 55 (5)
Names
Ca. Phytoplasma asteris
Abstract
Phytopathogenic mollicutes, which include spiroplasmas and phytoplasmas, are cell wall-less bacteria that parasitize plant hosts and insect vectors. Knowledge of the evolution of these agents is important in understanding their biology. The availability of the first complete phytoplasma and several partial spiroplasma and phytoplasma genome sequences made possible an investigation of evolutionary relationships between phytopathogenic mollicutes and other micro-organisms, especially Gram-positive

Thermincola carboxydiphila gen. nov., sp. nov., a novel anaerobic, carboxydotrophic, hydrogenogenic bacterium from a hot spring of the Lake Baikal area

Citation
Sokolova et al. (2005). International Journal of Systematic and Evolutionary Microbiology 55 (5)
Names
Thermincola
Abstract
A novel anaerobic, thermophilic, alkalitolerant bacterium, strain 2204T, was isolated from a hot spring of the Baikal Lake region. The cells of strain 2204Twere straight rods of variable length, Gram-positive with an S-layer, motile with one to two lateral flagella, and often formed aggregates of 3–15 cells. The isolate was shown to be an obligate anaerobe oxidizing CO and producing equimolar quantities of H2and CO2according to the equation CO+H2O→CO2+H2. No organic substrates were used as energ

Genome sequence of Blochmannia pennsylvanicus indicates parallel evolutionary trends among bacterial mutualists of insects

Citation
Degnan et al. (2005). Genome Research 15 (8)
Names
“Blochmanniella pennsylvanica”
Abstract
The distinct lifestyle of obligately intracellular bacteria can alter fundamental forces that drive and constrain genome change. In this study, sequencing the 792-kb genome of Blochmannia pennsylvanicus, an obligate endosymbiont of Camponotus pennsylvanicus, enabled us to trace evolutionary changes that occurred in the context of a bacterial–ant association. Comparison to the genome of Blochmannia floridanus reveals differential loss of genes involved in cofactor biosynthesis, the composition an

Aphid-Symbiotic Bacteria Cultured in Insect Cell Lines

Citation
Darby et al. (2005). Applied and Environmental Microbiology 71 (8)
Names
“Adiacens aphidicola” “Consessor aphidicola”
Abstract
ABSTRACT The cells and tissues of many aphids contain bacteria known as “secondary symbionts,” which under specific environmental circumstances may be beneficial to the host insect. Such symbiotic bacteria are traditionally described as intractable to cultivation in vitro. Here we show that two types of aphid secondary symbionts, known informally as T type and U type, can be cultured and maintained in three insect cell lines. The identities of the cultured bacteria were co