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First Report of HLB Causal Agent in Psyllid in State of Bahia, Brazil

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Abstract

The state of Bahia ranks fourth in the national rank for citrus production, and the region of Chapada Diamantina is emerging an important producer of orange for fresh fruit market. Huanglongbing (HLB) is the major phytosanitary threat to Bahia citriculture. In Brazil, the disease was first reported in 2004 in São Paulo state. The bacterium Candidatus Liberibacter asiaticus (CLas) is one of the causal agents of HLB, which is transmitted by the insect vector Diaphorina citri Kuwayama (Hemiptera: Liviidae). Bahia is a HLB-free area; therefore, it is essential to monitor its citrus-producing areas to early detect any possible introduction of the CLas. This study aimed to monitor the presence of the bacteria in the insect vector. Diaphorina citri samples were collected from 2011 to 2014 in different cities located at Chapada Diamantina region and tested by qPCR for the presence of CLas. Three samples were considered positive to bacterium, and all from psyllids collected on Murraya paniculata in the city of Seabra.

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Acknowledgments

We thank to Dr. Helvecio Della Coletta Filho from Centro de Citricultura “Sylvio Moreira”, Instituto Agronômico de Campinas (IAC) for the training on the detection of CLas by qPCR.

Funding

This study was financially supported by the Foundation for Research Support of Bahia (FAPESB).

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Authors and Affiliations

  1. Embrapa Recursos Genéticos e Biotecnologia, Brasília, Distrito Federal, Brasil

    E. F. M. Abreu

  2. Agência de Defesa Agropecuária da Bahia, Salvador, Bahia, Brasil

    A. C. Lopes & S. X. B. Silva

  3. Faculdade Maria Milza, Cruz das Almas, Bahia, Brazil

    A. M. Fernandes

  4. Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, Brasil

    C. J. Barbosa, A. S. Nascimento, F. F. Laranjeira & E. C. Andrade

Authors
  1. E. F. M. Abreu
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  2. A. C. Lopes
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  3. A. M. Fernandes
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  4. S. X. B. Silva
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  5. C. J. Barbosa
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  6. A. S. Nascimento
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  7. F. F. Laranjeira
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  8. E. C. Andrade
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Contributions

EFM Abreu and AM Fernandes performed qPCR data analyses in the laboratory; AC Lopes, SXB Silva, CJ Barbosa, AS Nascimento, FF Laranjeira, and EC Andrade planned, designed, and carried out the experimental work; and EFM Abreu and EC Andrade wrote the manuscript and the manuscript edition. All authors read and approved the manuscript.

Corresponding author

Correspondence to E. F. M. Abreu.

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Edited by Denise Návia – Embrapa

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Abreu, E.F.M., Lopes, A.C., Fernandes, A.M. et al. First Report of HLB Causal Agent in Psyllid in State of Bahia, Brazil. Neotrop Entomol 49, 780–782 (2020). https://doi.org/10.1007/s13744-020-00783-w

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  • DOI: https://doi.org/10.1007/s13744-020-00783-w

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