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

Autor: Abreu EFM; Embrapa Recursos Genéticos e Biotecnologia, Brasília, Distrito Federal, Brasil. emanuel.abreu@embrapa.br., Lopes AC; Agência de Defesa Agropecuária da Bahia, Salvador, Bahia, Brasil., Fernandes AM; Faculdade Maria Milza, Cruz das Almas, Bahia, Brazil., Silva SXB; Agência de Defesa Agropecuária da Bahia, Salvador, Bahia, Brasil., Barbosa CJ; Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, Brasil., Nascimento AS; Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, Brasil., Laranjeira FF; Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, Brasil., Andrade EC; Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, Brasil.
Jazyk: angličtina
Zdroj: Neotropical entomology [Neotrop Entomol] 2020 Oct; Vol. 49 (5), pp. 780-782. Date of Electronic Publication: 2020 Jun 18.
DOI: 10.1007/s13744-020-00783-w
Abstrakt: 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.
Databáze: MEDLINE