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^: *http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-3059 /issues (http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-3059/ issues)
^: Wilkinson S.W.; Pastor V.; Paplauskas S.; Petriacq P.; Luna E.
^: Long-lasting beta-aminobutyric acid-induced resistance protects tomato fruit against Botrytis cinerea [ (. Botrytis cinerea) - . (. )]
^: Plant Pathology, 2018; Vol.67,N 1. - P. 30-41
^: 2018
^: Bibliogr.:p.39-41
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^: Minimizing losses to pests and diseases is essential for producing sufficient food to feed the world's rapidly growing population. The necrotrophic fungus Botrytis cinerea triggers devastating pre- and post-harvest yield losses in tomato (Solanum lycopersicum). Current control methods are based on the pre-harvest use of fungicides, which are limited by strict legislation. This investigation tested whether induction of resistance by β-aminobutyric acid (BABA) at different developmental stages provides an alternative strategy to protect post-harvest tomato fruit against B. cinerea. Soil-drenching plants with BABA once fruit had already formed had no impact on tomato susceptibility to B. cinerea. However, BABA application to seedlings significantly reduced post-harvest infection of fruit. This resistance response was not associated with a yield reduction; however, there was a delay in fruit ripening. Untargeted metabolomics revealed differences between fruit from water- and BABA-treated plants, demonstrating that BABA triggered a defence-associated metabolomics profile that was long lasting. Targeted analysis of defence hormones suggested a role of abscisic acid (ABA) in the resistance phenotype. Post-harvest application of ABA to the fruit of water-treated plants induced susceptibility to B. cinerea. This phenotype was absent from the ABA-exposed fruit of BABA-treated plants, suggesting a complex role of ABA in BABA-induced resistance. A final targeted metabolomic analysis detected trace residues of BABA accumulated in the red fruit. Overall, it was demonstrated that BABA induces post-harvest resistance in tomato fruit against B. cinerea with no penalties in yield. aref1

^TRN: 1846721
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