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Sci Rep

Title:		"beta-caryophyllene emitted from a transgenic Arabidopsis or chemical dispenser repels Diaphorina citri, vector of Candidatus Liberibacters"
Author(s):		Alquezar B; Volpe HXL; Magnani RF; de Miranda MP; Santos MA; Wulff NA; Bento JMS; Parra JRP; Bouwmeester H; Pena L;
Address:		"Laboratorio de Biotecnologia Vegetal, Pesquisa & Desenvolvimento, Fundo de Defesa da Citricultura (Fundecitrus), Vila Melhado, 14807-040, Araraquara, Sao Paulo, Brazil. Instituto de Biologia Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Cientificas (CSIC)-Universidad Politecnica de Valencia (UPV), 46022, Valencia, Spain. Chemistry Department, Universidade Federal de Sao Carlos (UFSCar), Sao Carlos, Sao Paulo, Brazil. Departamento de Entomologia e Acarologia, Escola Superior de Agricultura Luiz de Queiroz, Universidade de Sao Paulo, Piracicaba, Sao Paulo, Brazil. Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, Netherlands. Laboratorio de Biotecnologia Vegetal, Pesquisa & Desenvolvimento, Fundo de Defesa da Citricultura (Fundecitrus), Vila Melhado, 14807-040, Araraquara, Sao Paulo, Brazil. lpenya@fundecitrus.com.br. Instituto de Biologia Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Cientificas (CSIC)-Universidad Politecnica de Valencia (UPV), 46022, Valencia, Spain. lpenya@fundecitrus.com.br"
Journal Title:		Sci Rep
Year:		2017
Volume:		20170717
Issue:		1
Page Number:		5639 -
DOI:		10.1038/s41598-017-06119-w
ISSN/ISBN:		2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:		"Production of citrus, the main fruit tree crop worldwide, is severely threatened by Huanglongbing (HLB), for which as yet a cure is not available. Spread of this bacterial disease in America and Asia is intimately connected with dispersal and feeding of the insect vector Diaphorina citri, oligophagous on rutaceous host plants. Effective control of this psyllid is an important component in successful HLB management programs. Volatiles released from the non-host guava have been shown to be repellent to the psyllid and to inhibit its response to citrus odour. By analysing VOC emission from guava we identified one volatile compound, (E)-beta-caryophyllene, which at certain doses exerts a repellent effect on D. citri. Non-host plant rejection mediated by (E)-beta-caryophyllene is demonstrated here by using Arabidopsis over-expression and knock-out lines. For the first time, results indicate that genetically engineered Arabidopsis plants with modified emission of VOCs can alter the behaviour of D. citri. This study shows that transgenic plants with an inherent ability to release (E)-beta-caryophyllene can potentially be used in new protection strategies of citrus trees against HLB"
Keywords:		Alkyl and Aryl Transferases/*genetics Alphaproteobacteria/pathogenicity Animals Arabidopsis/chemistry/*genetics Citrus/parasitology Hemiptera/*drug effects/microbiology Insect Repellents/*chemistry/pharmacology Insect Vectors/drug effects/microbiology Pla;
Notes:		"MedlineAlquezar, Berta Volpe, Haroldo Xavier Linhares Magnani, Rodrigo Facchini de Miranda, Marcelo Pedreira Santos, Mateus Almeida Wulff, Nelson Arno Bento, Jose Mauricio Simoes Parra, Jose Roberto Postali Bouwmeester, Harro Pena, Leandro eng Research Support, Non-U.S. Gov't England 2017/07/19 Sci Rep. 2017 Jul 17; 7(1):5639. doi: 10.1038/s41598-017-06119-w"