Abstract

ZAMORA-MACORRA, Erika Janet; AVILA-ALISTAC, Norma; LAGUNES-FORTIZ, Erika  and  SANTOS-VILLALOBOS, Sergio de los. Viruses and viroids in tomato (Solanum lycopersicum) and plant growth promoting rhizobacteria as a management alternative. Rev. mex. fitopatol [online]. 2023, vol.41, n.spe, RMEXFIT20237.  Epub Mar 31, 2025. ISSN 2007-8080.  https://doi.org/10.18781/r.mex.fit.2023-7.

Viruses and viroids cause several diseases in tomato (Solanum lycopersicum) worldwide, generating important economic losses. About 312 viruses and seven viroids have been associated, of which more than 28 are present in Mexico. Therefore, the use of Plant Growth-Promoting Rhizobacteria (PGPR) can be an effective alternative for the management of viruses and viroids. The genera Pseudomonas, Bacillus, Azospirillum, Anabena and Stenotrophomonas have been implemented against main viruses reported in tomato: Cucumber mosaic virus (CMV), Tobacco mosaic virus (TMV), Tomato chlorotic spot virus (TCSV), Tomato mottle virus (ToMoV), Tomato spotted wilt virus (TSWV), Tomato yellow leaf curl virus (TYLCV), Potato virus Y (PVY), Groundnut bud necrosis virus (GBNV), with benefits in decreased incidence and severity up to 80 % and yield increase over 40 %. In Mexico, only Bacillus has been used. The use of PGPR is a strategy that could mitigate the impact of viral and viroid diseases and can be integrated into integrated management.

Keywords : ISR; Solanum lycopersicum; PGPR; Pseudomonas; Bacillus¸viruses.

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