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Summary

A new budwood tissue extractor (BTE) significantly improves citrus pathogen detection by speeding up sample processing. This innovation enhances throughput and reduces costs for diagnostic labs, protecting citrus crops.

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Area of Science:

  • Plant Pathology
  • Molecular Diagnostics
  • Agricultural Engineering

Background:

  • Graft-transmissible pathogens like citrus tristeza virus cause significant global economic losses in citrus production.
  • Pathogen-tested budwood is crucial for citrus tree propagation and disease management.
  • Current methods for processing citrus budwood for molecular testing are labor-intensive and time-consuming.

Purpose of the Study:

  • To validate a novel instrument, the budwood tissue extractor (BTE), for rapid processing of citrus phloem-rich bark tissues.
  • To assess the BTE's efficiency in increasing sample throughput and reducing processing costs.
  • To compare nucleic acid yield from BTE-processed samples with traditional methods.

Main Methods:

  • Validation of the budwood tissue extractor (BTE) for processing citrus budwood samples.
  • Comparison of sample throughput between BTE and current manual methods.
  • Quantification of DNA yield from BTE-processed samples versus hand-chopping protocols.
  • Assessment of labor and equipment cost reductions associated with BTE use.

Main Results:

  • The BTE increased sample throughput by 100% compared to existing methods.
  • DNA yield from BTE-processed samples (80.25 ng/µL) was comparable to the manual protocol (77.84 ng/µL).
  • The BTE reduces labor and expensive equipment requirements for tissue processing.

Conclusions:

  • The budwood tissue extractor (BTE) offers a validated, efficient solution for rapid citrus budwood tissue processing.
  • This instrument can significantly benefit citrus diagnostic laboratories by increasing throughput and reducing costs.
  • The BTE protocol serves as a model for improving tissue processing in other woody perennial crops.