This primed defense response often includes induction of the phenylpropanoid-biosynthesis pathway, which results in the accumulation of flavonoids and anthocyanin pigments in response to low temperature, intense light exposure, wounding, or pathogen infection 1, 4. Biotic and abiotic stresses induce resistance in plants, priming the defense mechanism to protect the plant against future challenges 2, 3. Numerous studies have shown that flavonoids and anthocyanins play a significant role in plant resistance to both biotic and abiotic stresses as such, they can be divided into constitutive and induced compounds 1. To conclude, red fruit resistance to fungal pathogen was related to both flavonoid toxicity and primed resistance of fruit that was exposed to light at the orchard. The RNA-Seq analysis suggests that resistance of the whole red fruit involved upregulation of ethylene, brassinosteroid, and phenylpropanoid pathways.
On the green side of red mango, upregulation of 22 transcription factors and 33 signaling-related transcripts indicated induced resistance. Overall, in red fruit skin, 2,187 genes were upregulated in response to C. Transcriptomes of red and green fruit inoculated on their red and green sides with C. However, also the green side of red mango fruit that has low levels of flavonoids was resistant, indicated induced resistance.
green mango skin, correlated with higher antioxidant and lower ROS. LCMS analysis showed high amounts of antifungal compounds, as glycosylated flavonols, glycosylated anthocyanins, and mangiferin in red vs. Here we show that harvested red mango fruit that was exposed to sunlight at the orchard is more resistant than green fruit to Colletotrichum gloeosporioides.
#Mango fruit skin#
Mango fruit exposed to sunlight develops red skin and are more resistant to biotic and abiotic stresses.
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