Alternative Tissue Sampling for Improved Detection of Liberibacter asiaticus.

Early detection and prompt response are key factors in the eradication of 'huanglongbing' (HLB) in California. Currently, qPCR testing of leaf tissue guides the removal of infected trees. However, because of the uneven distribution of ' Liberibacter asiaticus' (Las) in an infected tree and asymptomatic infection, selecting the best leaves to sample, from a mature tree with more than 200,000 estimated leaves, is a major hurdle for timely detection.

Machine learning and analysis of genomic diversity of " Liberibacter asiaticus" strains from 20 citrus production states in Mexico.

Background: Huanglongbing (HLB, yellow shoot disease) is a highly destructive citrus disease associated with a nonculturable bacterium, " Liberibacter asiaticus" (CLas), which is transmitted by Asian citrus psyllid (ACP, ). In Mexico, HLB was first reported in Tizimin, Yucatán, in 2009 and is now endemic in 351 municipalities of 25 states. Understanding the population diversity of CLas is critical for HLB management.

Genome Resource for the Huanglongbing Causal Agent ' Liberibacter asiaticus' Strain AHCA17 from Citrus Root Tissue in California, USA.

' Liberibacter asiaticus' is the unculturable causative agent of citrus huanglongbing disease. Here, we report the first citrus root metagenome sequence containing the draft genome of ' L. asiaticus' strain AHCA17, obtained from a pummelo tree in California.