Accumulation and transmission dynamics of 'Candidatus liberibacter solanacearum' haplotypes A and B by potato psyllid nymphs: bioassay and transcriptomic insights.

ABSTRACT:

Background

'Candidatus Liberibacter solanacearum' (Lso) is a phloem-limited bacterial pathogen causing significant diseases in solanaceous crops. In the United States, haplotypes A and B are transmitted by the potato psyllid Bactericera cockerelli. We previously identified differences in their acquisition and transmission between adults and nymphs. The present study characterized the dynamics of LsoA and LsoB acquisition and transmission by nymphs and examined the transcriptional responses of the nymphal gut upon their acquisition.

Methods and results

Nymphs were exposed to LsoA- or LsoB-infected plants for 1, 3, 5, or 7 days to measure the bacterial accumulation and for 8 days to assess the transmission efficiency following sequential inoculation of tomato plants. Quantitat

SUBMITTER: Oh J 

PROVIDER: S-EPMC12775102 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature