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  • Title: Effect of exogenous methyl jasmonate on physiological and carotenoid composition of yellow maize sprouts under NaCl stress.
    Author: He W, Luo H, Xu H, Zhou Z, Li D, Bao Y, Fu Q, Song J, Jiao Y, Zhang Z.
    Journal: Food Chem; 2021 Nov 01; 361():130177. PubMed ID: 34077883.
    Abstract:
    Carotenoid content in maize sprouts can be increased by NaCl stress, although high NaCl concentrations negatively impact plant growth. The effects of exogenous methyl jasmonate (MeJA) on contents of carotenoid and antioxidant capacity of yellow maize sprouts under NaCl stress were investigated. Our results showed that treatments of NaCl both alone and combined with MeJA enhanced the carotenoid accumulation in maize sprouts. Moreover, the carotenoid biosynthesis related genes showed different expression patterns under addition of MeJA treatment. Additionally, the combined treatment led to significantly higher content of most carotenoids profiles and the addition of MeJA could alleviate the harmful effect caused by NaCl stress. Furthermore, the combined treatment improved antioxidant enzyme activities and radical scavenging capacity. The results implied that MeJA is kind of effective plant growth regulator for enhancing carotenoid accumulation in maize sprouts by up-regulating the expression levels of key genes involved in carotenoid biosynthetic pathway.
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