Ontology highlight
ABSTRACT:
PROVIDER: PRJNA861871 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR20593325_1.fastq.gz | Fastqsanger.gz | |||
| SRR20593325_2.fastq.gz | Fastqsanger.gz | |||
| SRR20593326_1.fastq.gz | Fastqsanger.gz | |||
| SRR20593326_2.fastq.gz | Fastqsanger.gz | |||
| SRR20593327_1.fastq.gz | Fastqsanger.gz |
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Project description:<p><strong>BACKGROUND:</strong> Bagging is one of the most important techniques for the production of high-quality fruits. In the act of cultivation, we found a new kind of browning in peel of the apple fruit that occurs before harvest and worsens during the storage period. There are many studies on metabonomic analysis about the browning of storage fruits, but few studies on the mechanism of browning before harvest. This experiment was based on metabonomic studies to explore the effect of bagging on fruit peel browning.</p><p><strong>RESULTS:</strong> In this study, five-year-old trees of ‘Rui Xue’ were used as materials. Bagging fruits without browning (BFW) and bagging fruits with browning (BFB) were set as the experimental groups, non-bagging fruits (NBF) were set as control (CT). Our results show that 131 metabolites of BFW were significantly up-regulated and 217 metabolites were significantly down-regulated compared with NBF; 198 metabolites of BFB were significantly up-regulated and and 178 metabolites were significantly down-regulated compared with BFW (Variable important in projection (VIP) > 1 and p-value < 0.05). The synthesis and accumulation of flavonoids and lipids were significantly changed after bagging; compared with NBF, 11 flavonoids and 6 lipid molecules were significantly decreased in the BFW (top 50 metabolites). Compared with BFW, 11 flavonoids and 7 lipids were further decreased in BFB, but, 12 triterpenes were significantly accumulated in BFB. As the peel browning, galactose metabolism, ABC membrane transporter protein, flavonoid biosynthesis and linoleic acid metabolism pathways were significantly changed in BFW and BFB compared with NBF. Physiological indicators show that, compared with NBF, the MDA in peel of BFW and BFB significantly increased by 0.46 times and 2.94 times, respectively; and the cell membrane permeability of BFW and BFB were significantly increased by 15.7% and 28.2%, respectively. We analyzed the expression of related genes in the metabolic pathways of flavonoids, compared with NBF, the flavonoid synthesis genes MdLAR were significantly up-regulated by 2.55 and 9.37 times in BFW and BFB, and the MdANR genes were also significantly up-regulated by 2.33 and 2.69 times, respectively. In addition to this, the downstream flavonoids-related polymeric genes MdLAC7 and MdLAC14 were the most significantly expressed. Compared with NBF, MdLAC7 was significantly up-regulated by 0.43 and 13.88 times in BFW and BFB, and MdLAC14 was also significantly up-regulated by 7.13 and 3.17 times, respectively.</p><p><strong>CONCLUSIONS:</strong> Our findings demonstrated that the microenvironment of fruit was changed by bagging, the destruction of cell structure, the increase of lipid peroxidation of cell membrane, the decrease of flavonoids and the increase of triterpenoids were the main reasons for the browning of peel about bagging 'Rui Xue'.</p>
2021-04-09 | MTBLS2384 | MetaboLights
Project description:Purpose:The red coloration of apple (Malus × domestica Borkh.) is due to the accumulation of anthocyanins in the fruit peel. Light is essential for anthocyanin biosynthesis in apple.Apple peel can quickly turn red under light conditions after unbagging. Therefore, the implementation of transcriptome sequencing to find genes that promote anthocyanin accumulation in response to light signals is necessary to clarify the mechanism of light-induced anthocyanin accumulation in apple peel.
2021-10-02 | GSE185089 | GEO
Project description:Superficial scald is a major physiological disorder in apple fruit that is induced by cold storage and is mainly expressed as brown necrotic patches on peel tissue. However, a global view of the gene-protein-metabolite interactome underlying scald prevention/sensitivity is currently missing. Herein, we have found for the first time that cold storage in an atmosphere enriched with ozone (O3) induced scald symptoms in ‘Granny Smith’ apple fruits during subsequent ripening at room temperature. In contrast, treatment with the ethylene perception inhibitor 1-methylcyclopropene (1-MCP) reversed this O3-induced scald effect. Amino acids, including branched-chain amino acids, were the most strongly induced metabolites in peel tissue of 1-MCP treated fruits. Proteins involved in oxidative stress and protein trafficking were differentially accumulated prior to and during scald development. Genes involved in photosynthesis, flavonoid biosynthesis and ethylene signaling displayed significant alterations in response to 1-MCP and O3. Analysis of regulatory module networks identified putative transcription factors (TFs) that could be involved in scald. Subsequently, a transcriptional network of the genes-proteins-metabolites and the connected TFs was constructed. This approach enabled identification of several genes co-regulated by TFs, notably encoding glutathione S-transferase (GST) protein(s) with distinct signatures following 1-MCP and O3 treatments. Overall, this study is an important contribution to future functional studies and breeding programs for this fruit, aiding to the development of improved apple cultivars to superficial scald.
2020-05-27 | PXD016849 | Pride
Project description:Apple (Malus domestica Borkh) is an important fruit crop cultivated in a broad range of environmental conditions. Apple fruit, and specifically peel tissue, ripening is a physiological process whose molecular regulatory networks response to different environments are still not sufficiently investigated. In this study, the influence of low (20 m) and high (750 m) altitude environmental conditions in peel tissue was assessed by physiological measurements combined with global metabolite and protein expression profiling during apple fruit development and ripening. Although apple fruit ripening was unaffected by the different environmental conditions, however several key color parameters, such as redness and the color percentage index, were induced by high altitude. Consistent with this, increased level of anthocyanin and other phenolic compounds, including cyanidin-3-O-galactoside, quercetin-3-O-rhamnoside, quercetin-3-O-rutinoside and chlorogenic acid were identified in apple peel at high altitude. Also, high altitude environment, particularly, at the ripening period, up-accumulated various carbohydrates (eg., arabinose, xylose and sucrose) while repressed glutamic acid and several related proteins such as glycine hydroxymethyltransferase and glutamate���glyoxylate aminotransferase. Other processes affected by high altitude concerned the TCA cycle, the synthesis of oxidative/defense enzymes, and the accumulation of photosynthetic proteins. Finally, we constructed a metabolite-protein network depicting the impact of altitude on peel ripening. These data provide insights into physiological processes linked to apple peel ripening across different climatic conditions and will assist in efforts to improve apple fruit appeal and quality.
2021-11-25 | PXD017057 | Pride
Project description:Apple (Malus domestica Borkh) is an important fruit crop cultivated in a broad range of environmental conditions. Apple fruit, and specifically peel tissue, ripening is a physiological process whose molecular regulatory networks response to different environments are still not sufficiently investigated. In this study, the influence of low (20 m) and high (750 m) altitude environmental conditions in peel tissue was assessed by physiological measurements combined with global metabolite and protein expression profiling during apple fruit development and ripening. Although apple fruit ripening was unaffected by the different environmental conditions, however several key color parameters, such as redness and the color percentage index, were induced by high altitude. Consistent with this, increased level of anthocyanin and other phenolic compounds, including cyanidin-3-O-galactoside, quercetin-3-O-rhamnoside, quercetin-3-O-rutinoside and chlorogenic acid were identified in apple peel at high altitude. Also, high altitude environment, particularly, at the ripening period, up-accumulated various carbohydrates (eg., arabinose, xylose and sucrose) while repressed glutamic acid and several related proteins such as glycine hydroxymethyltransferase and glutamate–glyoxylate aminotransferase. Other processes affected by high altitude concerned the TCA cycle, the synthesis of oxidative/defense enzymes, and the accumulation of photosynthetic proteins. Finally, we constructed a metabolite-protein network depicting the impact of altitude on peel ripening. These data provide insights into physiological processes linked to apple peel ripening across different climatic conditions and will assist in efforts to improve apple fruit appeal and quality.
2021-09-08 | PXD017037 | Pride
Project description:The quality of the pepper fruit is significantly influenced by the properties of its surface such as color, glossiness and texture. The fruit surface is composed of a peel containing several layers including the cuticle, epidermis and the hypodermis. The peel acts as a protective barrier against biotic and abiotic stresses and is the most critical tissue affecting water loss during post harvest storage. The peel is composed of an outer epidermis with thick waxy (lipid) cuticle and few cell layers of thick-walled hypodermal cells. Despite its agronomic importance and due to the fact that the majority of studies in fruits have been conducted using flesh and peel tissues as a whole, the biochemical and genetic bases of variation in peel properties are largely unknown. In this proposal we aim to determine peel-specific gene expression in pepper by micro array hybridizations of peel and flesh RNA extracted at different developmental stages of the fruit. The cultivar Celica (Capsicum annuum) that has a large blocky fruit will be used for studying gene expression in the peel and flesh. Plants were grown in the greenhouse during the spring of 2006. Fruits were harvested at three developmental stages: young- 10 days after anthesis, mature green- 30 days after anthesis and ripe red- 45 days after anthesis. These stages were chosen because each represents a distinct phase in fruit development. At each stage, a biological replicate consists of bulked tissue from 3 fruits from each of 3 plants (a total of 9 fruits). We have a total of 4 biological replicates. For each fruit, the peel was separated from the flesh by manual dissection using thin forceps and scalpel blade. Peel and flesh samples were immediately frozen in liquid nitrogen and stored at -800C until RNA extraction. Total RNA was extracted using the GenElute Mammalian Total RNA Miniprep kit (Sigma). Keywords: Reference design
2007-09-01 | GSE8282 | GEO
Project description:Comparison of seed of two different types of developing fruits in apple: central and lateral. Our objective is to find transcriptomic signatures that allow to explain the physiological drop of young lateral fruitlets Apple seeds transcriptomes were generated by deep sequencing by triplicate from seeds collected from central and lateral fruitlets at 20 days after petal fall (DAPF)
2014-11-21 | E-GEOD-62415 | biostudies-arrayexpress
Project description:The quality of the pepper fruit is significantly influenced by the properties of its surface such as color, glossiness and texture. The fruit surface is composed of a peel containing several layers including the cuticle, epidermis and the hypodermis. The peel acts as a protective barrier against biotic and abiotic stresses and is the most critical tissue affecting water loss during post harvest storage. The peel is composed of an outer epidermis with thick waxy (lipid) cuticle and few cell layers of thick-walled hypodermal cells. Despite its agronomic importance and due to the fact that the majority of studies in fruits have been conducted using flesh and peel tissues as a whole, the biochemical and genetic bases of variation in peel properties are largely unknown. In this proposal we aim to determine peel-specific gene expression in pepper by micro array hybridizations of peel and flesh RNA extracted at different developmental stages of the fruit. The cultivar Celica (Capsicum annuum) that has a large blocky fruit will be used for studying gene expression in the peel and flesh. Plants were grown in the greenhouse during the spring of 2006. Fruits were harvested at three developmental stages: young- 10 days after anthesis, mature green- 30 days after anthesis and ripe red- 45 days after anthesis. These stages were chosen because each represents a distinct phase in fruit development. At each stage, a biological replicate consists of bulked tissue from 3 fruits from each of 3 plants (a total of 9 fruits). We have a total of 4 biological replicates. For each fruit, the peel was separated from the flesh by manual dissection using thin forceps and scalpel blade. Peel and flesh samples were immediately frozen in liquid nitrogen and stored at -800C until RNA extraction. Total RNA was extracted using the GenElute Mammalian Total RNA Miniprep kit (Sigma). Keywords: Reference design 12 hybs total
2007-08-31 | E-GEOD-8282 | biostudies-arrayexpress
Project description:Gene expression in feeding larvae reciprocally transplanted into snowberry and apple fruits
2015-10-01 | GSE66975 | GEO