Profiling sugar metabolism during fruit development in a peach progeny with different fructose-to-glucose ratios

Desnoues, Elsa; Gibon, Yves; Baldazzi, Valentina; Signoret, Véronique; Génard, Michel; Quilot-Turion, Bènèdicte

doi:10.1186/s12870-014-0336-x

Cited by 72 publications

(99 citation statements)

References 63 publications

(89 reference statements)

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“…Such disparity is believed to reflect slow respiratory processes and/or increased activity of several glucose‐producing enzymes . Low fructose/glucose ratios have also been reported in fruits of wild and ornamental peaches, apricots, and tomatoes . Starch content (∼5%) was similar in D. digyna and D. rekoi fruits and did not vary between seasons.…”

Section: Discussionmentioning

confidence: 72%

“…This also coincided with the tendency shown by fruits of mostly nonastringent cultivars of D. kaki . Increased reducing sugars content has been attributed to augmented invertase activity during ripening, whereas fructose accumulation may depend on the activity of sucrose synthases and fructokinase . The low fructose/glucose ratios observed in fruits of D. digyna and D. rekoi fruits was in conformity with the similarly diminished fructose/glucose ratios present in D. kaki fruits.…”

Section: Discussionmentioning

confidence: 99%

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Fruits of wild and semi‐domesticated Diospyros tree species have contrasting phenological, metabolic, and antioxidant activity profiles

et al. 2019

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BACKGROUND In contrast to commercial Diospyros species, Mesoamerican fruit‐producing species are scarcely known, particularly wild species that might harbor desirable traits suitable for breeding. Thus, metabolomic, chemical, and antioxidant profiles of fruits harvested from cultivated Diospyros digyna and wild Diospyros rekoi trees during consecutive winter seasons were obtained. Fruits were harvested in habitats having marked differences in soil quality, climate, and luminosity. RESULTS D. digyna fruits were larger and less acid than D. rekoi fruits, whereas antioxidant activity tended to be higher in D. rekoi fruits. Phenolic, flavonoid, and sugar contents also varied significantly between species. Metabolomic analysis allowed the pre‐identification of 519 and 1665 metabolites in negative and positive electrospray ionization (ESI) modes, respectively. Principal component analysis of the positive ESI data explained 51.8% of the variance and indicated clear metabolomic differences between D. rekoi and D. digyna fruits that were confirmed by direct‐injection ESI mass spectrometry profiles. Twenty‐one discriminating metabolites were detected in fruits of both species; D. digyna fruits differentially accumulated lysophospholipids, whereas discriminating metabolites in D. rekoi fruits were chemically more diverse than those in D. digyna fruits. CONCLUSION Domesticated D. digyna fruits have improved physicochemical fruit traits compared with wild D. rekoi fruits, including larger size and lower acidity. The metabolomic and chemical composition of their respective fruits were also significantly different, which in D. rekoi was manifested as a notable season‐dependent increase in antioxidant capacity. Therefore, wild D. rekoi can be considered as an important genetic resource for the improvement of commercial Diospyros fruit quality. © 2019 Society of Chemical Industry

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Section: Discussionmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Fruits of wild and semi‐domesticated Diospyros tree species have contrasting phenological, metabolic, and antioxidant activity profiles

et al. 2019

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“…Differences in the SCC among different thinning times can also be attributed to the sink/source proportion. The sugars of peaches, mainly sucrose, increase rapidly during the plant's development (Desnoues et al, 2014). With it, the early adjustment of the number of fruits per plant can increase final sugar accumulation due to the reduction in the number of sinks.…”

Section: Resultsmentioning

confidence: 99%

Heading of shoots and hand thinning of flowers and fruits on 'BRS Kampai' peach trees

Oliveira

Marodin

Almeida

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to evaluate the effect of shoot heading and of hand thinning in different development stages of flowers and fruits on the fruit production and quality of 'BRS Kampai' peach (Prunus persica) trees. The experiment was performed during three crop years, under the conditions of the "Depressão Central" region in the state of Rio Grande do Sul, Brazil, and the treatments were: T1, heading of half of the mixed shoot; T2, heading of one third of the mixed shoot; T3, flower thinning in the pink bud stage; T4, thinning at full bloom; T5, thinning of fruit with 5 mm; T6, thinning of fruit with 20 mm; and T7, no thinning or heading (control). Fruit production and quality were evaluated. Plants with no thinning were more productive, but showed high frequency of fruits with a diameter smaller than 60 mm. Shoot heading reduced production per tree and resulted in small-sized fruit. Thinning time did not affect production, and fruit size was greater when thinning was performed at the bloom stage. 'BRS Kampai' peach trees can be thinned starting at bloom, which provides greater fruit size, with no production loss.Index terms: Prunus persica, fruit quality, yield. Desponte de ramos e raleio manual de flores e frutos em pessegueiros 'BRS Kampai'Resumo -O objetivo deste trabalho foi avaliar o efeito do desponte de ramos e do raleio manual realizado em diferentes estágios de desenvolvimento de flores e frutos sobre a produção e a qualidade dos frutos do pessegueiro (Prunus persica) 'BRS Kampai'. O experimento foi realizado durante três safras nas condições da Depressão Central do Rio Grande do Sul, e os tratamentos foram: T1, desponte da metade do ramo misto; T2, desponte de um terço do ramo misto; T3, raleio de flor no estádio de balão rosado; T4, raleio na plena floração; T5, raleio do fruto com 5 mm; T6, raleio do fruto com 20 mm; e T7, sem desponte ou raleio (testemunha). Avaliaram-se a produção e a qualidade dos frutos. Plantas sem raleio foram mais produtivas, mas com alta frequência de frutos com diâmetro inferior a 60 mm. O desponte reduziu a produção por planta e ocasionou frutos pequenos. A época de raleio não afetou a produção, e o diâmetro dos frutos foi maior quando o raleio foi realizado durante a floração. Pessegueiros 'BRS Kampai' podem ser raleados a partir da floração, o que proporciona maior tamanho dos frutos, sem reduzir a produção.Termos para indexação: Prunus persica, qualidade de fruto, produtividade.

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“…The concentrations of sucrose, glucose, fructose and sorbitol were determined according to a procedure described by Desnoues et al . ().…”

Section: Methodsmentioning

confidence: 97%

A kinetic model of sugar metabolism in peach fruit reveals a functional hypothesis of a markedly low fructose‐to‐glucose ratio phenotype

Desnoues

Génard²,

Quilot-Turion

et al. 2018

The Plant Journal

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The concentrations of sugars in fruit vary with fruit development, environment and genotype. In general, there were weak correlations between the variations in sugar concentrations and the activities of enzymes directly related with the synthesis or degradation of sugars. This finding suggests that the relationships between enzyme activities and metabolites are often non-linear and are difficult to assess. To simulate the concentrations of sucrose, glucose, fructose and sorbitol during the development of peach fruit, a kinetic model of sugar metabolism was developed by taking advantage of recent profiling data. Cell compartmentation (cytosol and vacuole) was described explicitly, and data-driven enzyme activities were used to parameterize equations. The model correctly accounts for both annual and genotypic variations, which were observed in 10 genotypes derived from an interspecific cross. They provided important information on the mechanisms underlying the specification of phenotypic differences. In particular, the model supports the hypothesis that a difference in fructokinase affinity could be responsible for a low fructose-to-glucose ratio phenotype, which was observed in the studied population.

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Profiling sugar metabolism during fruit development in a peach progeny with different fructose-to-glucose ratios

Cited by 72 publications

References 63 publications

Fruits of wild and semi‐domesticated Diospyros tree species have contrasting phenological, metabolic, and antioxidant activity profiles

Fruits of wild and semi‐domesticated Diospyros tree species have contrasting phenological, metabolic, and antioxidant activity profiles

Heading of shoots and hand thinning of flowers and fruits on 'BRS Kampai' peach trees

A kinetic model of sugar metabolism in peach fruit reveals a functional hypothesis of a markedly low fructose‐to‐glucose ratio phenotype

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