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Getting transgenic rootstock: possibility of increasing levels of scion resistance to phytopathogens through the translocation of diffusible molecules

Grant number: 19/01447-5
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): March 01, 2019
Effective date (End): February 28, 2021
Field of knowledge:Agronomical Sciences - Agronomy
Principal Investigator:Alessandra Alves de Souza
Grantee:Natália de Sousa Teixeira e Silva
Home Institution: Instituto Agronômico (IAC). Agência Paulista de Tecnologia dos Agronegócios (APTA). Secretaria de Agricultura e Abastecimento (São Paulo - Estado). Campinas , SP, Brazil
Associated research grant:13/10957-0 - Xylella fastidiosa-vector-host plant interaction and approaches for citrus variegated chlorosis and citrus canker control, AP.TEM


The possibility of altering the bacterial behavior through the use and molecules that act in the signaling between bacteria represents a very interesting potential for the use against some plant diseases. Recently, plants transformed with the X. fastidiosa rpfF gene responsible for the DSF regulatory signal were shown to be more resistant to CVC and to Citrus canker. Once the transgenic plants presented satisfactory results, the next step would be to investigate the possibility of translocation of the DSF molecules from transgenic rootstocks to non-transgenic scion in order to evaluate the level of tolerance, in which the presence of these molecules would be able to confer. This hybrid plant model - only with the transgenic graft - would enable the production of non-transgenic fruits more tolerant to citrus diseases.