Non-structural Carbohydrate Metabolism in the Flesh of Stone Fruits of the Genus Prunus (Rosaceae) – A Review

Walker, Robert P.; Battistelli, Alberto; Bonghi, Claudio; Drincovich, Marı́a F.; Falchi, Rachele; Lara, Marı́a V.; Moscatello, Stefano; Vizzotto, Giannina; Famiani, Franco

doi:10.3389/fpls.2020.549921

Cited by 21 publications

(19 citation statements)

References 152 publications

(422 reference statements)

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“…Within this major locus (Chr4: 10,736,973—12,413,438 bp), Pp.LH.04G02050 encoding a putative β-glucosidase that catalyzes hydrolysis of β-D-glucoside or oligosaccharide substrates 61 may regulate glucose accumulation. Sorbitol is universally found in stone fruits and is a significant contributor to sweetness in peaches 19 , 62 . We detected two significant signals on chromosome 6 associated with sorbitol content in 2016, and one signal each for chromosome 1 and chromosome 3 in 2017 (Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

Population-scale peach genome analyses unravel selection patterns and biochemical basis underlying fruit flavor

Guan

et al. 2021

Nat Commun

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A narrow genetic basis in modern cultivars and strong linkage disequilibrium in peach (Prunus persica) has restricted resolution power for association studies in this model fruit species, thereby limiting our understanding of economically important quality traits including fruit flavor. Here, we present a high-quality genome assembly for a Chinese landrace, Longhua Shui Mi (LHSM), a representative of the Chinese Cling peaches that have been central in global peach genetic improvement. We also map the resequencing data for 564 peach accessions to this LHSM assembly at an average depth of 26.34× per accession. Population genomic analyses reveal a fascinating history of convergent selection for sweetness yet divergent selection for acidity in eastern vs. western modern cultivars. Molecular-genetics and biochemical analyses establish that PpALMT1 (aluminum-activated malate transporter 1) contributes to their difference of malate content and that increases fructose content accounts for the increased sweetness of modern peach fruits, as regulated by PpERDL16 (early response to dehydration 6-like 16). Our study illustrates the strong utility of the genomics resources for both basic and applied efforts to understand and exploit the genetic basis of fruit quality in peach.

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Section: Resultsmentioning

confidence: 99%

Population-scale peach genome analyses unravel selection patterns and biochemical basis underlying fruit flavor

Guan

et al. 2021

Nat Commun

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“…These malate effluxes are likely to be associated with nitrogen metabolism (see below) and/or osmoregulation. Osmoregulation plays an important role in the pericarp of fruits; and is involved in fruit softening, cell expansion and the import of materials [ 14 , 57 , 96 ].…”

Section: Gluconeogenesis and The Vacuolar Release Of Malate/citrate And Nitrogenous Compoundsmentioning

confidence: 99%

Gluconeogenesis in Plants: A Key Interface between Organic Acid/Amino Acid/Lipid and Sugar Metabolism

Walker¹,

Chen

Famiani

2021

Molecules

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The aims of this article are four-fold. First, to provide a concise overview of plant gluconeogenesis. Second, to emphasise the widespread occurrence of gluconeogenesis and its utilisation in diverse processes. Third, to stress the importance of the vacuolar storage and release of Krebs cycle acids/nitrogenous compounds; and of the role of gluconeogenesis and malic enzyme in this process. Fourth, to outline the contribution of fine control of enzyme activity to the coordinate-regulation of gluconeogenesis and malate metabolism; and the importance of cytosolic pH in this.

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“…Thus, the bulk of sugar content is within the cell. The very low content of sucrose in the flesh of cherry (Table 1; [1]) indicates that a large proportion of the apoplastic sugars consists of glucose and fructose. Ripe cherries, grapes and cultivated tomatoes (S. lycopersicon), all accumulate large amounts of glucose and fructose but little sucrose (Table 1).…”

Section: Distribution Of Sugars Between Symplast and Apoplastmentioning

confidence: 99%

“…Sucrose and its constituents, glucose and fructose, account for the bulk of the nonstructural carbohydrate content of many ripe fruits, including grapes. These sugars have a number of functions, which include: providing a metabolic substrate, acting as a carbon store, osmoregulation, transport, signalling and, in their wild ancestors, enticing animals to disperse the fruits/seeds [1]. In this article, the transport and metabolism of sucrose in grapevines is reviewed.…”

Section: Introductionmentioning

confidence: 99%

Sucrose Metabolism and Transport in Grapevines, with Emphasis on Berries and Leaves, and Insights Gained from a Cross-Species Comparison

Walker¹,

Bonghi

Varotto

et al. 2021

IJMS

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In grapevines, as in other plants, sucrose and its constituents glucose and fructose are fundamentally important and carry out a multitude of roles. The aims of this review are three-fold. First, to provide a summary of the metabolism and transport of sucrose in grapevines, together with new insights and interpretations. Second, to stress the importance of considering the compartmentation of metabolism. Third, to outline the key role of acid invertase in osmoregulation associated with sucrose metabolism and transport in plants.

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Non-structural Carbohydrate Metabolism in the Flesh of Stone Fruits of the Genus Prunus (Rosaceae) – A Review

Cited by 21 publications

References 152 publications

Population-scale peach genome analyses unravel selection patterns and biochemical basis underlying fruit flavor

Population-scale peach genome analyses unravel selection patterns and biochemical basis underlying fruit flavor

Gluconeogenesis in Plants: A Key Interface between Organic Acid/Amino Acid/Lipid and Sugar Metabolism

Sucrose Metabolism and Transport in Grapevines, with Emphasis on Berries and Leaves, and Insights Gained from a Cross-Species Comparison

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