Methyl Jasmonate Enhances Anthocyanin Accumulation and Modifies Production of Phenolics and Pigments in `Fuji' Apples

Abstract

<jats:p>Effects of artificial ultraviolet-visible light and methyl jasmonate (MJ) treatment on `Fuji' apple [<jats:italic>Malus sylvestris</jats:italic> (L.) Mill. var. <jats:italic>domestica</jats:italic> (Borkh.) Mansf.] fruit peel anthocyanin, phenolic, carotenoid, and chlorophyll production were examined using tristimulus color analysis and reverse-phase high performance liquid chromatography. Anthocyanin synthesis was enhanced by light and MJ treatment. Chlorogenic acid and most cyanidin, quercetin, and phloretin glycosides increased with MJ treatment concentration. Light alone also promoted increased production of most of these compounds. Production of catechin, (-)epicatechin, quercetin, and quercetrin was not enhanced by either light or MJ treatment. Light and MJ enhanced ß-carotene and chlorophyll b, synthesis but not xanthophyll or chlorophyll a synthesis. The chlorophyll a/b ratio decreased with MJ dosage. Results suggest MJ may provide a viable means of enhancing apple fruit coloration and other photoprotective mechanisms. Chemical name used: methyl 3-oxo-2-(2-pentenyl)cyclopentane-1-acetate (methyl jasmonate).</jats:p>

Effects of Pre-Harvest Methyl Jasmonate Treatments on Bioactive Compounds and Peel Color Development of “Fuji” Apples

“…Similar to the findings of Kondo et al [15] and Rudell et al, [25] the MeJA treatments in the present study distinctively increased the anthocyanin contents in both experimental years. A clear linear relationship was observed between the treatment doses and the anthocyanin contents.…”

Dynamics of accumulation of coumarin-related compounds in leaves of Matricaria chamomilla after methyl jasmonate elicitation

“…The maximum values were observed 72 h after treatment and then a slight decline followed over time. Rudell et al (2002) showed no clear correlation between chlorophyll a and xanthophylls content and MeJA treatment in an experiment with apples, but chlorophyll b and b-carotene synthesis increased linearly with MeJA concentration. Czerpak et al (2006) in their study with JAtreated Chlorella vulgaris showed, that a higher concentration range (10 -5 -10 -4 M) resulted in a decrease in cell number and a reduction of major photosynthetic pigments, but in contrast, this phytohormone applied at 10 -8 -10 -6 M induced an increase in the cell number and photosynthetic pigments.…”

Anti-inflammatory and antioxidative activity of anthocyanins from purple basil leaves induced by selected abiotic elicitors

“…(Rudell & Mattheis, 2002), and grapes -V. vinifera L. cvs. Isabelle (Mihai, Mitoi, Brezeanu, & Cogalniceanu, 2010).…”