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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Postharvest Auxin and Methyl Jasmonate Effect on Anthocyanin Biosynthesis in Red Raspberry (Rubus idaeus L.)

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Author(s):
Moro, Lais ; Aymoto Hassimotto, Neuza Mariko ; Purgatto, Eduardo
Total Authors: 3
Document type: Journal article
Source: JOURNAL OF PLANT GROWTH REGULATION; v. 36, n. 3, p. 773-782, SEP 2017.
Web of Science Citations: 6
Abstract

Fruit color is fundamental for consumer acceptance. There is evidence that plant growth regulators, such as indole-3-acetic acid (IAA) and methyl jasmonate (MJ), are related to the inhibition or increase of flavonoids in red raspberries (Rubus idaeus L.). We evaluated the effect of IAA and MJ treatment in the anthocyanin content in red raspberries cv. Autumn Bliss. Ethylene, IAA, and MJ levels were determined, as well as the relative transcript levels of anthocyanidin synthase (ANS, leucocyanidin oxygenase; EC 1.14.11.19), dihydroflavonol 4-reductase (DFR; dihydrokaempferol 4-reductase; EC 1.1.1.219), and MYB10, a transcriptional regulator of the anthocyanin pathway in raspberries were also determined. The MJ-treated fruits developed an intense red color 2 days after harvest (DAH) and prior to anthocyanin accumulation, which was associated with an increase in the relative expressions of MYB10, ANS, and DFR. Five DAH, the anthocyanin and the total phenolic contents were lower in the IAA-treated fruit than the control group. These effects were related to the inhibition of MYB10 and ANS transcription and correlated to changes in IAA and MJ contents in the fruit flesh. These results suggest that anthocyanin metabolism is regulated by the interplay of multiple hormonal signs, including IAA and MJ, affecting specific steps during raspberry maturation, such as transcription factors of the anthocyanin pathway. (AU)

FAPESP's process: 13/09303-6 - Plant growth regulators associated to the biosynthesis of aroma volatile compounds in climacteric and non-climacteric fruits
Grantee:Eduardo Purgatto
Support Opportunities: Regular Research Grants
FAPESP's process: 13/07914-8 - FoRC - Food Research Center
Grantee:Bernadette Dora Gombossy de Melo Franco
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 11/05583-9 - Hormonal regulation of the postharvest anthocyanin biosynthesis in raspberries (Rubus idaeus)
Grantee:Laís Moro
Support Opportunities: Scholarships in Brazil - Master