First report of ‘<i>Candidatus</i> Liberibacter europaeus’ associated with psyllid infested Scotch broom

Thompson, Sarah; Fletcher, J. D.; Ziebell, Heiko; Beard, Sam S.; Panda, Preeti; Jørgensen, Niels Oluf; Fowler, Simon V.; Liefting, L. W.; Berry, N. A.; Pitman, Andrew R.

doi:10.5197/j.2044-0588.2013.027.006

Cited by 44 publications

(34 citation statements)

References 4 publications

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“…“ Candidatus Liberibacter solanacearum” is associated with potato zebra chip disease and other diseases of solanaceous crops (2). In addition, “ Candidatus Liberibacter europaeus” is associated with disease-like symptoms similar to those of Scotch broom in New Zealand (3). “ Ca .…”

Section: Genome Announcementmentioning

confidence: 99%

Draft Genome Sequence of “ Candidatus Liberibacter americanus” Bacterium Associated with Citrus Huanglongbing in Brazil

Lin

Coletta-Filho²,

Han

et al. 2013

Genome Announc

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Section: Genome Announcementmentioning

confidence: 99%

Draft Genome Sequence of “ Candidatus Liberibacter americanus” Bacterium Associated with Citrus Huanglongbing in Brazil

Lin

Coletta-Filho²,

Han

et al. 2013

Genome Announc

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“…The New Zealand partial 16S rDNA sequences were noted as being 99.7% similar to the Italian sequences (Thompson et al, 2013). This, combined with differences in geographic range, plant and insect hosts, suggests the potential to determine the presence of genetically, geographically and host species defined Leu haplotypes.…”

Section: Introductionmentioning

confidence: 74%

“…The same species has been found in Scotch broom, Cytisus scoparius, showing symptoms such as stunting and leaf chlorosis (Thompson et al, 2013). It is suggested that Leu likely arrived in New Zealand within the broom psyllid, Arytainilla spartiophila, imported to New Zealand from England as a biocontrol agent against broom (Fowler, 2013).…”

Section: Introductionmentioning

confidence: 91%

Haplotypes of “Candidatus Liberibacter europaeus” also separate by geography and host species

Nelson

2015

Preprint

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Abstract"Candidatus Liberibacter europaeus" (Leu) is one of six currently known Liberibacter species. It is known primarily from pear and related species across Europe, and from Scotch broom and its associated psyllids in New Zealand (introduced from Britain). The psyllids were introduced to New Zealand as a biocontrol agent for broom and it is thought the bacterium may have been introduced as an endosymbiont of the psyllids. No symptoms in apple or pear trees have been reported, but mild symptoms can occur in broom.16S and 16S-23S intergenic spacer region DNA sequences of this species are available from GenBank.Analysis of these sequences and associated ecological descriptions indicates the occurrence of two haplotypes, LeuA and LeuB, defined not only genetically, but also by geographic range as well as by plant/psyllid host species composition. Liberibacter species are new to science and haplotype identifications enable historical accounts of relationships and spread to be generated.

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“…L. europaeus was detected in New Zealand [59]. Nonetheless important feeding variables involved in IAP and AAP were measured in this study such as the total duration of E1 and E2.…”

Section: Discussionmentioning

confidence: 99%

Acizzia solanicola (Hemiptera: Psyllidae) probing behaviour on two Solanum spp. and implications for possible pathogen spread

et al. 2017

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Piercing-sucking insects are vectors of plant pathogens, and an understanding of their feeding behaviour is crucial for studies on insect population dynamics and pathogen spread. This study examines probing behaviour of the eggplant psyllid, Acizzia solanicola (Hemiptera: Psyllidae), using the electrical penetration graph (EPG) technique, on two widespread and common hosts: eggplant (Solanum melongena) and tobacco bush (S. mauritianum). Six EPG waveforms were observed: waveform NP (non-probing phase), waveform C (pathway phase), G (feeding activities in xylem tissues), D (first contact with phloem tissues), E1 (salivation in the sieve elements) and E2 (ingestion from phloem tissues). Results showed that A. solanicola is predominantly a phloem feeder and time spent in salivation and ingestion phases (E1 and E2) differed between hosts. Feeding was enhanced on eggplant compared to tobacco bush which showed some degree of resistance, as evidenced by shorter periods of phloem ingestion, a higher propensity to return to the pathway phase once in the sieve elements and higher number of salivation events on tobacco bush. We discuss how prolonged phloem feeding could indicate the potential for A. solanicola to become an important pest of eggplant and potential pathogen vector.

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First report of ‘Candidatus Liberibacter europaeus’ associated with psyllid infested Scotch broom

Cited by 44 publications

References 4 publications

Draft Genome Sequence of “ Candidatus Liberibacter americanus” Bacterium Associated with Citrus Huanglongbing in Brazil

Draft Genome Sequence of “ Candidatus Liberibacter americanus” Bacterium Associated with Citrus Huanglongbing in Brazil

Haplotypes of “Candidatus Liberibacter europaeus” also separate by geography and host species

Acizzia solanicola (Hemiptera: Psyllidae) probing behaviour on two Solanum spp. and implications for possible pathogen spread

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