Comparing and integrating TMT‐SPS‐MS3 and label‐free quantitative approaches for proteomics scrutiny in recalcitrant Mango (Mangifera indica L.) peel tissue during postharvest period

Despite substantial advances in the use of proteomic technologies, their widespread application in fruit tissues of non‐model and recalcitrant species remains limited. This hampers the understanding of critical molecular events during the postharvest period of fleshy tropical fruits. Therefore, we e...

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Published in:Proteomics (Weinheim) 2024-03, Vol.24 (5), p.e2300239-n/a
Main Authors: Bautista‐Valle, Mirna V., Camacho‐Vazquez, Carolina, Elizalde‐Contreras, José M., Monribot‐Villanueva, Juan Luis, Limón, Abraham M. Vidal, Bojórquez‐Velázquez, Esaú, Zamora‐Briseño, Jesús Alejandro, Jorrin‐Novo, Jesús V., Ruiz‐May, Eliel
Format: Article
Language:English
Subjects:
Aroma
Cell walls
Chloroform
Desiccation
Flavors
Fractionation
Fruits
Glycopeptides
Labels
mango peel
Mangoes
Peptides
Phenolic compounds
Phenols
Plant tissues
postharvest
protein extraction
Proteins
Proteomics
Ripening
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Summary:Despite substantial advances in the use of proteomic technologies, their widespread application in fruit tissues of non‐model and recalcitrant species remains limited. This hampers the understanding of critical molecular events during the postharvest period of fleshy tropical fruits. Therefore, we evaluated label‐free quantitation (LFQ) and TMT‐SPS‐MS3 (TMT) approaches to analyse changes in the protein profile of mango peels during postharvest period. We compared two extraction methods (phenol and chloroform/methanol) and two peptide fractionation schemes (SCX and HPRP). We accurately identified 3065 proteins, of which, 1492 were differentially accumulated over at 6 days after harvesting (DAH). Both LFQ and TMT approaches share 210 differential proteins including cell wall proteins associated with fruit softening, as well as aroma and flavour‐related proteins, which were increased during postharvest period. The phenolic protein extraction and the high‐pH reverse‐phase peptide fractionation was the most effective pipeline for relative quantification. Nevertheless, the information provided by the other tested strategies was significantly complementary. Besides, LFQ spectra allowed us to track down intact N‐glycopeptides corroborating N‐glycosylations on the surface of a desiccation‐related protein. This work represents the largest proteomic comparison of mango peels during postharvest period made so far, shedding light on the molecular foundation of edible fruit during ripening.
ISSN:1615-9853
1615-9861
DOI:10.1002/pmic.202300239