Harman Patil (Editor)

Candidatus Liberibacter

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Kingdom
  
Bacteria

Scientific name
  
Candidatus Liberibacter

Phylum
  
Proteobacteria

Order
  
Rhizobiales

Family
  
Rhizobiaceae

Higher classification
  
Rhizobiaceae

Rank
  
Genus

Candidatus Liberibacter citrus greening Candidatus Liberibacter asiaticus Rhizobiales

Similar
  
Diaphorina citri, Diaphorina, Jumping plant louse, Bacteria, Bactericera cockerelli

Transmission tests of candidatus liberibacter solanacearum by carrot seeds


Candidatus Liberibacter is a genus of Gram-negative bacteria in the Rhizobiaceae family. The term Candidatus is used to indicate that it has not proved possible to maintain this bacterium in culture. Detection of the liberibacters is based on PCR amplification of their 16S rRNA gene with specific primers. Members of the genus are plant pathogens mostly transmitted by psyllids. The genus was originally spelled Liberobacter.

Contents

Candidatus Liberibacter Liberibacter solanacearum LIBEPSPhotos EPPO Global Database

Species

Named species include:

Candidatus Liberibacter wwwscielobrimgrevistasfbv32n6a13fig01bgif

  • Liberibacter africanus originated in Africa and is a causal agent of huanglongbing, also known as citrus greening disease and vectored by the African citrus psyllid Trioza erytreae.
  • Liberibacter americanus is a novel species from Brazil described in 2005 and associated with huanglongbing and vectored by the Asian citrus psyllid Diaphorina citri.
  • Liberibacter asiaticus originated in Asia and is a causal agent of huanglongbing, vectored by the Asian citrus psyllid D. citri.
  • Liberibacter crescens was isolated from papaya growing in Puerto Rico.*Liberibacter europaeus is a novel species described in 2010, found in pear trees, where it seems to cause no symptoms and is vectored by the psyllid, Cacopsylla pyri.
  • Liberibacter psyllaurous is a novel species described in 2008 from solanaceous host plants potato and tomato and vectored by the potato tomato psyllid Bactericera cockerelli. L. psyllaurous plays a dual role as a plant pathogen and as an inherited bacterial endosymbiont. This symbiont modifies tomato defenses in favor of itself and its psyllid vector.
  • Liberibacter solanacearum is a causal agent of zebra chip disease in potatoes and vectored by the potato tomato psyllid Bactericera cockerelli. There are five haplotypes described within this species, designated LsoA and LsoB (from solanaceous plants in North America), and LsoC, LsoD and LsoE (from carrots and celery in Europe). L. psyllaurous is a synonym for L. solanacearum haplotype A (identical 16S rRNA genes).

    • Candidatus Liberibacter Detection of the quotCandidatus Liberibacter americanusquot in phloem

    Candidatus Liberibacter PROPLgt Liberibacter carrot Israel 1st rep Outbreak Watch

    References

    Candidatus Liberibacter Wikipedia
    (Text) CC BY-SA


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