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First Report of the Citrus Huanglongbing Associated Bacterium ‘Candidatus Liberibacter asiaticus’ from Sweet Orange, Mexican Lime, and Asian Citrus Psyllid in Belize

Citation
Manjunath et al. (2010). Plant Disease 94 (6)
Names
Ca. Liberibacter asiaticus
Abstract
The citrus industries of North and South America are endangered by Huanglongbing (HLB), also known as citrus greening, a devastating disease associated with ‘Candidatus Liberibacter asiaticus’ and ‘Ca. L. americanus’, two species of fastidious phloem-limited bacteria spread by the Asian citrus psyllid (ACP), Diaphorina citri, Kuwayama. The first reports of HLB from the Americas were from Brazil in 2004 followed by Florida in 2005 (3). The ACP was found in Belize in 2005 (S. Williams, personal c

Enigmatic, ultrasmall, uncultivated Archaea

Citation
Baker et al. (2010). Proceedings of the National Academy of Sciences 107 (19)
Names
Ca. Micrarchaeum Ca. Micrarchaeum acidiphilum
Abstract
Metagenomics has provided access to genomes of as yet uncultivated microorganisms in natural environments, yet there are gaps in our knowledge—particularly for Archaea—that occur at relatively low abundance and in extreme environments. Ultrasmall cells (<500 nm in diameter) from lineages without cultivated representatives that branch near the crenarchaeal/euryarchaeal divide have been detected in a variety of acidic ecosystems. We reconstructed composite, near-complete ~1-Mb geno

First Report of “Candidatus Liberibacter solanacearum” Associated with Psyllid-Affected Carrots in Europe

Citation
Munyaneza et al. (2010). Plant Disease 94 (5)
Names
“Liberibacter solanacearum”
Abstract
Carrot (Daucus carota) plants with symptoms resembling those of carrot psyllid (Trioza apicalis) damage (3,4) were observed in 14 commercial fields in southern Finland in August 2008; all cultivars grown were affected at approximately 5 to 35% symptomatic plants per field. T. apicalis, a pest of carrots in northern and central Europe, can cause up to 100% crop loss (3,4). Symptoms on affected plants included leaf curling, yellow and purple discoloration of leaves, stunted growth of shoots and r

First Report of Pear Decline Caused by ‘Candidatus Phytoplasma pyri’ in Ontario, Canada

Citation
Hunter et al. (2010). Plant Disease 94 (5)
Names
Ca. Phytoplasma pyri
Abstract
Pear decline (PD) is a serious disease of pear (Pyrus communis L.) caused by ‘Candidatus Phytoplasma pyri’, which belongs to the subgroup 16SrX-C of the apple proliferation (AP) group of phytoplasmas (3). Pear seedlings from the Agriculture and Agri-Food Canada (AAFC) pear breeding program, which have been selected for advanced test and grower trials, are routinely submitted to the Canadian Food Inspection Agency (CFIA) Sidney Laboratory (formerly, CFIA Centre for Plant Health, Saanichton, BC)

Murraya paniculata and Related Species as Potential Hosts and Inoculum Reservoirs of ‘Candidatus Liberibacter asiaticus’, Causal Agent of Huanglongbing

Citation
Damsteegt et al. (2010). Plant Disease 94 (5)
Names
Ca. Liberibacter asiaticus
Abstract
Huanglongbing (HLB), considered to be the most serious insect-vectored bacterial disease of citrus, is transmitted in nature by the Asian citrus psyllid Diaphorina citri and the African citrus psyllid Trioza erytreae. D. citri was discovered in southern Florida in 1998 and the HLB disease in 2005. Both have become established throughout citrus-producing areas of Florida. Murraya species are widely grown in southern Florida as ornamental hedges and are readily colonized by D. citri vectors. Colo

Amycolatopsis halophila sp. nov., a halophilic actinomycete isolated from a salt lake

Citation
Tang et al. (2010). International Journal of Systematic and Evolutionary Microbiology 60 (5)
Names
Amycolatopsis
Abstract
A novel halophilic actinomycete, designated strain YIM 93223T, was isolated from a salt lake in Xinjiang Province, north-west China, and was subjected to a polyphasic taxonomic study. The isolate grew at 25–45 °C, at pH 6–8 and in the presence of 1–15 % (w/v) NaCl; no growth was observed in the absence of NaCl. Strain YIM 93223T contained meso-diaminopimelic acid, glutamic acid and alanine as cell-wall amino acids, and glucose and galactose as major whole-cell-wall sugars. Major fatty acids were