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Molecular responses and metabolic reset of apple fruit under postharvest low oxygen stress

ABSTRACT: In the present work we report data on the application of an integrated approach on apples held under two levels of low oxygen concentrations throughout the initial 2 months of storage, when, in general, strict control of the effects of the extremely low oxygen concentration is required for a successful DCA performance.

ORGANISM(S): Malus domestica

PROVIDER: GSE72153 | GEO | 2016/08/20

SECONDARY ACCESSION(S): PRJNA293208

REPOSITORIES: GEO

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Molecular responses and metabolic reset of apple fruit under postharvest low oxygen stress

Project description:In the present work we report data on the application of an integrated approach on apples held under two levels of low oxygen concentrations throughout the initial 2 months of storage, when, in general, strict control of the effects of the extremely low oxygen concentration is required for a successful DCA performance. Examination of 4 different condition. Three replicates per condition

2016-08-20 | E-GEOD-72153 | biostudies-arrayexpress

Transcriptome and metabolic survey disclose the mode of action of static and dynamic low oxygen postharvest storage strategies to prevent the onset of superficial scald disorder in fruit of ‘Granny Smith’ apple cultivar

Project description:To preserve quality feature and ensuring availability of fresh fruit on the market, apples need to be stored. The low temperature applied during storage, beside avoiding important fruit loss, can also promote the development of serious chilling injury type of disorder, such as superficial scald. One of the strategies largely employed to prevent the development of this phenomenon is the control of the storage atmosphere, by lowering down the concentration of oxygen. In this work, a multifaceted survey was carried out to investigate the variation in transcriptome together with three categories of metabolites (phenolics, lipids and volatile organic compounds, VOCs) in fruit of ‘Granny Smith’ apple cultivar stored in both static and dynamic hypoxia condition for 5 and 7 months, respectively. The global transcriptome survey identified a core set of differentially expressed genes in three main functional groups, revealing as the duration of storage had an important effect in the coordination of gene expression. The effect of the storage time was furthermore highlighted by the DEG-network analysis that identified a distinct number and type of transcriptomic hubs. Samples characterized by the development of superficial scald were distinguished by a higher concentration of chlorogenic acid and a higher expression of PAL and PPO in a time specific fashion. The prevention of this phenomenon was instead related to distinctive re-programming events, involving the accumulation of specific antioxidant types of metabolites, very long chain fatty acids and the expression of genes coordinating an hypoxia acclimation process, such as RAP2-like and PCO.

2023-12-31 | GSE225233 | GEO

The effect of Epigallocatechin-3-Gallate (EGCG), a main active ingredient in tea residues, on improving fruit quality and prolonging postharvest storage in apple

Project description:EGCG, as an active oxygen scavenger, has a significant effect on inhibiting the greasiness of apples. However, the impact of greasiness on fruit storage and how EGCG eliminates this effect, as well as its influence on apple quality formation, have not been clarified. In this study, we found that exogenous application of EGCG effectively improved a series of nutritional growth indicators, including seedling growth status and photosynthetic activity. Additionally, it significantly increased indicators of reproductive growth, such as fruit diameter, soluble solids content, surface wax, and surface smoothness. Through our experiments, we further discovered that greasiness primarily affects fruit respiration, accelerating fruit decay and causing harm during storage, while EGCG mitigates this process. We also found that the application of tea residue had similar effects to exogenous EGCG. Collectively, these studies suggest that EGCG could be used as a novel foliar fertilizer to enhance overall fruit quality. Moreover, the application of tea residue has similar effects to EGCG, providing a cost-effective solution for apple production.

2023-12-02 | GSE248662 | GEO

Apple fruit superficial scald resistance mediated by ethylene inhibition is associated with diverse metabolic processes

Project description:Fruits stored at low temperature for long time can undergo to different type of chilling injuries. In apple, superficial scald represents one of the most serious physiopathy. The typical symptoms of this disorder are represented by the development of important discoloration and black patches on the fruit exocarp. Although this phenomenon has been historically related to α-farnesene, its etiology and physiology are not yet fully disclosed. In the attempt to elucidate the regulating mechanism of its development and prevention, a multidisciplinary survey was performed, integrating different level of metabolite screening (volatiles, polyphenols and lipids) with a large-scale transcriptomic analysis. The comparison between scalded and non-scalded apples (treated with an ethylene competitor) revealed that the prevention of superficial scald is associated with the triggering of cold acclimation-related processes. The interference at the ethylene receptor level stimulates the production of antioxidant compounds to scavenge reactive oxygen species (ROS), the synthesis of unsaturated fatty acids to stabilize plastid and vacuole membranes against cold temperature and the accumulation of sugar alcohols with important cryoprotectant roles, such as sorbitol. The accumulation pattern of this polyalcohol was also consistent with the expression profile of MdS6PDH. Moreover, the overexpression of this gene in transgenic line of Arabidopsis thaliana plants provided functional validation of its involvement in the biosynthetic pathway of sorbitol and elucidated its role in the cold acclimation and freezing tolerance process.

2019-05-02 | GSE98893 | GEO

The ethylene-auxin crosstalk regulates the postharvest fruit ripening process in apple

Project description:The ripening of climacteric fruits, such as apple, is represented by a series of genetically programmed events orchestrated by the action of several hormones. In this work, we investigated the existence of a hormonal crosstalk between ethylene and auxin during the post-harvest ripening of three internationally known apple cultivars: ‘Golden Deli-cious’, ‘Granny Smith’ and ‘Fuji’. The normal climacteric ripening was impaired by the exogenous application of 1-methylcyclopropene (1-MCP) that effectively affected the production of ethylene and the physiological behaviour of specific ethylene-related qual-ity traits, such as fruit texture and the production of volatile organic compounds showed a de-novo accumulation of auxin following the application of 1-MCP. The RNA-Seq wide-transcriptome analysis evidenced as the competition at the level of the ethylene re-ceptors induced a cultivar-dependent transcription re-programming. The DEGs annota-tion carried out through the KEGG database identified as most genes were assigned to the plant hormone signaling transduction category, and specifically related to auxin and ethylene. The interplay between these two hormones was further assessed through a candidate gene analysis that highlighted a specific activation of GH3 and ILL genes, en-coding key steps in the process of the auxin homeostasis mechanism. Our results showed that a compromised ethylene metabolism at the onset of the climacteric ripening in apple can stimulate, in a cultivar-dependent fashion, an initial de-novo synthesis and de-conjugation of auxin as a tentative to restore a normal ripening progression.

2021-11-17 | GSE182822 | GEO

Growth enhancement of obligate anaerobic archaeon, Thermococcus onnurineus NA1 by the addition of oxygen

Project description:Hyperthermophilic archeaon, Thermococcus onnurineus NA1 has known as a strict anaerobe. To date, a few of studies have been reported that strict anaerobe can grow using oxygen. However, the research of the growth enhancement of strict anaerobic archaeon belonging to the order of Thermococcales using the oxygen, in which has never been reported so far. In this study, we showed that the growth of T. onnurineus NA1 strain increased under various oxygen concentrations and we observed that oxygen was decreased in the headspace during the growth of cell. Genome-wide transcriptomic analysis was carried out to evaluate alterations in gene expression induced by O2 and to explain the physiological effects of oxidative stress on the growth of T. onnurineus NA1.

2021-03-10 | GSE114281 | GEO

Transcription profiling of colon mucosa from HLAB27 transgenic rats fed apple-supplemented diets with low or high levels of proanthocyanidins

Project description:Transcription profiling in rats fed modified AIN76 diet, high fat/low fibre, (controls) and rats fed apple-supplemented diets, contained 7.6% of lyophilized apples with low (Golden) or high (Marie Mï¿½nard) proanthocyanidins.

2009-06-16 | E-TABM-514 | biostudies-arrayexpress

Botrytis cinerea differentially induces postharvest antioxidant responses in 'Braeburn' and 'Golden Delicious' apple fruit.

Project description: Not available

| S-EPMC6771965 | biostudies-literature

Transcriptional profiling of Granny Smith apple peel (Malus x domestica Borkh) at harvest between contrasted years for scald incidence

Project description:Granny Smith apples (Malus x domestica Borkh) were harvested at early physiological mature stage in 2014, 2015 and 2017 and phenotyped for scald incidence after long time cold storage. Differential analyses were set-up for peel samples collected at harvest between fruit batches with low or high scald incidence.

2020-04-20 | GSE135863 | GEO

Dichloroacetate and reduced oxygen utilization induced metabolic regulation of the heart: A focus on the cardiac mitochondrial proteome

Project description:Myocardial compensatory mechanisms stimulated by reduced oxygen utilization caused by streptozotocin-induced diabetes mellitus (D) and treated with the dichloroacetate (DCA) are presumably associated with the regulation of mitochondria. We aimed to promote the understanding of key signaling pathways and identify effectors involved in signal transduction.

2022-04-18 | PXD033256 | Pride

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