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A ‘Candidatus Liberibacter solanacearum’ Haplotype B-Specific Family of Candidate Bacterial Effectors

Citation
Levy et al. (2023). Phytopathology® 113 (9)
Names
“Liberibacter solanacearum”
Abstract
‘ Candidatus Liberibacter solanacearum’ (Lso) is a phloem-limited pathogen associated with devastating diseases in members of the Solanaceae and Apiaceae and vectored by several psyllid species. Different Lso haplotypes have been identified, and LsoA and LsoB are responsible for diseases in Solanaceae crops. Our efforts are aimed at identifying pathogenicity factors used by this bacterium to thrive in different hosts. Bacterial secreted proteins can play a role in host colonization or the manip

Physiological and Transcriptomic Analysis of ‘Candidatus Phytoplasma pruni’ Infection in Prunus persica

Citation
Wright et al. (2023). PhytoFrontiers™ 3 (2)
Names
Ca. Phytoplasma pruni
Abstract
‘ Candidatus Phytoplasma pruni’ is the causative agent of X-disease on peach ( Prunus persica) trees. Infected trees exhibit premature yellowing, leaf necrosis causing a shot-hole appearance, limb dieback, and eventual death. How pathogen infection leads to these symptoms is unknown. This study undertook a modern characterization of the disease by assessing the physiological and transcriptomic consequences of phytoplasma infection. Phytoplasma titer was high in the symptomatic tissues and undet

Rapid Movement of ‘Candidatus Liberibacter asiaticus’ on ‘Hamlin’ Sweet Orange and ‘Swingle’ Citrumelo Trunks

Citation
Pulici et al. (2023). PhytoFrontiers™ 3 (2)
Names
Ca. Liberibacter asiaticus
Abstract
Huanglongbing (HLB), caused by phloem-limited ‘ Candidatus Liberibacter asiaticus’ (CLas), is the primary limiting factor of production in most citrus regions of the world. After infection, CLas is transported systemically throughout the phloem tissues following the source-sink movement. Split-root rhizoboxes and one-sided graft inoculation above the split trunk was used to understand if the vertical distance of the inoculum source and different anatomical structures (grafted or seedling trees)