'Candidatus Liberibacter asiaticus', Causal Agent of Citrus Huanglongbing, Is Reduced by Treatment with Brassinosteroids.

Authors:
Eduardo Canales
Eduardo Canales
Center for Genetic Engineering and Biotechnology
New Delhi | India
Yamilet Coll
Yamilet Coll
Faculta de Química, Univ. Habana
Havana, Havana | Cuba
Ingrid Hernandez
Ingrid Hernandez
Center for Genetic Engineering and Biotechnology
New Delhi | India
Roxana Portieles
Roxana Portieles
Center for Genetic Engineering and Biotechnology
Yunior Lopez
Yunior Lopez
Center for Genetic Engineering and Biotechnology
New Delhi | India
Miguel Aranguren
Miguel Aranguren
Group of Phytopathology
Eugenio Alonso
Eugenio Alonso
Empresa Agroindustrial Victoria de Girón

PLoS One 2016 5;11(1):e0146223. Epub 2016 Jan 5.

Department of Plant Science, Center for Genetic Engineering and Biotechnology, Havana, Cuba.

Huanglongbing (HLB) constitutes the most destructive disease of citrus worldwide, yet no established efficient management measures exist for it. Brassinosteroids, a family of plant steroidal compounds, are essential for plant growth, development and stress tolerance. As a possible control strategy for HLB, epibrassinolide was applied to as a foliar spray to citrus plants infected with the causal agent of HLB, 'Candidatus Liberibacter asiaticus'. The bacterial titers were reduced after treatment with epibrassinolide under both greenhouse and field conditions but were stronger in the greenhouse. Known defense genes were induced in leaves by epibrassinolide. With the SuperSAGE technology combined with next generation sequencing, induction of genes known to be associated with defense response to bacteria and hormone transduction pathways were identified. The results demonstrate that epibrassinolide may provide a useful tool for the management of HLB.

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0146223PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4701442PMC

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June 2016
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