Methyl jasmonate induced defense responses increase resistance to Fusarium oxysporum f. sp. cubense race 4 in banana

Plant defense response against Fusarium oxysporum and strategies to develop tolerant genotypes in banana

“…Also for the ethylene signaling genes and transcription factors such as ethylene Insensitive 3 (eIN3) and ethylene Insensitive 3-like 1 (eIL1) were also induced which reports that resistance to the necrotrophic pathogen Foc TR4 and is mediated by the JA and eT signaling pathways, and not the SA pathway (Li et al 2012). Role of JA in banana defense is supported by another study reported by Sun et al (2013) who showed that MeJA treatment dramatically reduced the disease incidence and disease severity of Foc4-infected banana plants compared to control and observed that MeJA treatment has triggered key enzymes of secondary metabolite biosynthetic pathways. Also Li et al (2013a) found that both Foc1 and Foc TR4 infections led to similar gene expression profiles in banana roots where majorly ethylene synthetic genes like ACC oxidase and ethylene signaling pathways were found to be activated.…”

Methyl jasmonate delays postharvest ripening and senescence in the non-climacteric eggplant ( Solanum melongena L.) fruit

“…Postharvest treatment of MeJA has also been reported to delay ripening, however, the effect is dependent on the fruit species and the concentration of MeJA applied (Sun et al, 2013;Wang et al, 2014). In the present study, eggplant fruit treated with 1 mM MeJA directly after harvest maintained a higher level of quality, than untreated fruit, during storage at 20 C for 10 d. Factors affecting the perception of fruit quality, such as gloss, firmness, freshness, and calyx greenness, were evaluated by a trained panel.…”

“…MeJA was reported to induce resistance responses in tomato fruit by regulating ROS production and increasing the expression of CAT genes (Zhu and Tian, 2012). Sun et al (2013) reported that exogenous of MeJA stimulates CAT and POD activity in banana plantlets, and reduces the level of H 2 O 2 and O 2 À. In raspberry, a non-chilling-sensitive commodity, MeJA treatment was shown to induce the activity of a wide range of antioxidant enzymes and concomitantly increased fruit resistance to decay (Chanjirakul et al, 2006).…”

Nonspecific toxins as components of a host‐specific culture filtrate from Fusarium oxysporum f. sp. cubense race 1

“…Additionally, Sun et al . () showed that methyl jasmonate (MeJA) treatment dramatically reduced the disease incidence and disease severity of Foc TR4‐infected banana plants compared to the control. Digital gene expression (DGE) profiling was used to investigate the transcriptional changes in the banana root upon Foc TR4 infection.…”