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The roles of non-structural carbohydrates in fruiting: a review focusing on mango (Mangifera indica)

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Rossouw, G. C., Orr, R., Bennett, D. and Bally, I. S. E. (2024) The roles of non-structural carbohydrates in fruiting: a review focusing on mango (Mangifera indica). Functional Plant Biology, 51 (4).


Article Link: https://doi.org/10.1071/FP23195

Publisher URL: https://www.publish.csiro.au/paper/FP23195


Reproductive development of fruiting trees, including mango (Mangifera indica L.), is limited by non-structural carbohydrates. Competition for sugars increases with cropping, and consequently, vegetative growth and replenishment of starch reserves may reduce with high yields, resulting in interannual production variability. While the effect of crop load on photosynthesis and the distribution of starch within the mango tree has been studied, the contribution of starch and sugars to different phases of reproductive development requires attention. This review focuses on mango and examines the roles of non-structural carbohydrates in fruiting trees to clarify the repercussions of crop load on reproductive development. Starch buffers the plant’s carbon availability to regulate supply with demand, while sugars provide a direct resource for carbon translocation. Sugar signalling and interactions with phytohormones play a crucial role in flowering, fruit set, growth, ripening and retention, as well as regulating starch, sugar and secondary metabolites in fruit. The balance between the leaf and fruit biomass affects the availability and contributions of starch and sugars to fruiting. Crop load impacts photosynthesis and interactions between sources and sinks. As a result, the onset and rate of reproductive processes are affected, with repercussions for fruit size, composition, and the inter-annual bearing pattern.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Business groups:Horticulture and Forestry Science
Keywords:carbohydrate metabolism, carbon allocation, crop physiology, flowering, fruit development, hormonal regulation, starch, sugar sensing, yield.
Subjects:Agriculture > Agriculture (General) > Agricultural chemistry. Agricultural chemicals
Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Plant culture > Growth regulators
Plant culture > Food crops
Plant culture > Fruit and fruit culture
Live Archive:10 Apr 2024 22:31
Last Modified:10 Apr 2024 22:31

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