Acid invertase as a serious candidate to control the balance sucrose versus (glucose+fructose) of banana fruit during ripening

Changes in Soluble Sugar Accumulation and Activities of Sucrose-Metabolizing Enzymes during Fruit Ripening of Jackfruit

“…A direct correlation between sucrose accumulation and increased enzyme activity of SPS has been reported for typical climacteric fruits tomato (Yelle, Chetelat, Dorais, De Verna, & Bennett, 1991;Dali, Michaud, & Yelle, 1992) and muskmelon (Hubbard, Pharr, & Huber, 1989), but not for banana (Fils-Lycaon et al, 2011). Our study did not find such a clear correlation for most of the jackfruit varieties tested (Figures 1 and 3).…”

“…9, No. 8;2017 varieties of tomato (Klann, Chetelat, & Bennett, 1993), watermelon (Yativ, Harary, & Wolf, 2010) and banana (Fils-Lycaon et al, 2011;Choudhury, Roy, & Sengupta, 2009) have been characterized as predominantly sucrose-or hexose-accumulating. Our study (Figure 1) clearly shows an abundant accumulation of sucrose in the ripening fruits of all 8 varieties, suggesting that jackfruit is most likely a sucrose accumulator.…”

The banana (Musa acuminata) genome and the evolution of monocotyledonous plants

“…Transcription factors were particularly involved with 597 differentially regulated genes. Various modifications confirmed the biochemistry of the banana ripening process 28 , such as highly upregulated genes encoding cell-wall modifying enzymes, three downregulated starch synthase genes and one upregulated b-amylase gene. Two WGD-derived paralogous vacuolar invertase genes involved in sucrose conversion displayed opposite expression profiles, suggesting subfunctionalization and possible contribution to the soluble sugar balance in ripening bananas (Supplementary Fig.…”

Flux control analysis of a lactate and sucrose metabolic network at different storage temperatures for Hami melon (Cucumis melo var. saccharinus)

“…3a1 and a2), suggesting the synthesis of sucrose exceeded its decomposition. It has been reported that the increase of sucrose levels of banana, citrus, tomato (sucroseaccumulation type), sugarcane and netted melon are related with the increase of the activity of sucrose phosphate synthase (Lycaon et al, 2011;Hou et al, 2008). Pyruvate dehydrogenase complex (PDHC) increased gradually as temperature changed.…”