The effect of MeJA on ethylene biosynthesis and induced disease resistance to Botrytis cinerea in tomato

Using jasmonates and salicylates to reduce losses within the fruit supply chain

“…The positive response was already observed after 3 days of storage at 25 °C [78] with a significant reduction in disease incidence in tomato fruit inoculated with B. cinerea, probably due to fast growth of this fungus at high temperature in control samples. In tomatoes stored at 12-13 °C [41,79] and 5 °C [76,77] reduced decay was not noticed until 9 th and 21 st day of storage, respectively.…”

“…when produce is challenged by a pathogen, where increased production of ROS is used as a signal to prevent the produce from infection and limit the spread of disease, as has been observed in tomatoes treated with MeJA at 100 µmol l -1 for 30 s and then inoculated with B. cinerea [78].…”

“…In the case of tomatoes, decay was reduced when produce was treated with MeJA at 10 µmol l -1 [76,77], 100 µmol l -1 [77,78], and 200 µmol l -1 [41,79,80] or with MeSA at 10 and 100 µmol l -1 [76,77]. The positive response was already observed after 3 days of storage at 25 °C [78] with a significant reduction in disease incidence in tomato fruit inoculated with B. cinerea, probably due to fast growth of this fungus at high temperature in control samples.…”

Ripening of ‘Kumagai’ guavas and anthracnose control as affected by methyl jasmonate

“…In apples and tomatoes, the increase of endogenous jasmonate induces the production of ethylene from system I to II, and, moreover, low jasmonate concentrations (0.001 to 1 μmol•L −1 ) can induce physiological changes in these fruit (Fan et al 1997). The application of exogenous MJ increases ACC oxidase activity preceding the ACC synthase activity (Yu et al 2009), suggesting that the ACC oxidase activity is the key-step for controlling ethylene production in response to MJ application (Larrigaudiere and Vendrell 1993). The effect of MJ is directly related not only to the enzymes associated with ethylene synthesis, but also to the increase of lipoxygenase (LOX) activity, as observed in different plants (Cheong and Yang 2007;González-Aguilar et al 2003).…”

The phytohormone methyl jasmonate as an activator of induced resistance against the necrotrophAlternaria porrif. sp.solaniin tomato plants

“…A rapid increase in ethylene emission was observed also after JA treatment of tomato leaves (O'Donnell et al 1996). A treatment involving about 3 min immersion of tomato fruits in 0.1 mM MeJA solution resulted in increased ethylene production (Yu et al 2009). However, MeJA at 0.05 mM concentration in the medium during callus growth, proliferating cell suspension, and development of somatic embryos during in vitro somatic embryogenesis of M. sativa had no effect on ethylene production (Kępczyn´ska et al 2009).…”