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Unknown,Transcriptomics,Genomics,Proteomics

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Organ specific expression in cucumber

ABSTRACT: We compared organ specific chloroplast gene expression in cucumber between fully developed leaves (12th counting from the bottom of plant) and growing tips, female flowers, young leaves, young fruits (3-5 cm long). We have also characterized chloroplast gene transcription in cucumber etiolated seedlings in comparison to mature cucumber leaves.

ORGANISM(S): Cucumis sativus

SUBMITTER: Magdalena Guzowska-Nowowiejska

PROVIDER: E-MEXP-3227 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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A tiling microarray for global analysis of chloroplast genome expression in cucumber and other plants.

Zmieńko Agnieszka A Guzowska-Nowowiejska Magdalena M Urbaniak Radosław R Pląder Wojciech W Formanowicz Piotr P Figlerowicz Marek M

Plant methods 20110928

Plastids are small organelles equipped with their own genomes (plastomes). Although these organelles are involved in numerous plant metabolic pathways, current knowledge about the transcriptional activity of plastomes is limited. To solve this problem, we constructed a plastid tiling microarray (PlasTi-microarray) consisting of 1629 oligonucleotide probes. The oligonucleotides were designed based on the cucumber chloroplast genomic sequence and targeted both strands of the plastome in a non-cont ...[more]

PMID: 21952044

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Cold stress influence on chloroplast gene expression

Project description:The expression of chloroplast genes of cucumber was influenced by prolonged low temperature treatment. We tried to asses the short term influence (0, 4, 8, 16 hours) of 4 C degree treatment in cucumber plants kept in darkness. As a control we used pooled RNA from all collected samples.

2011-09-10 | E-MEXP-3228 | biostudies-arrayexpress

Influence of non-chloroplast genomes rearangements on chloroplast transcription in cucumber

Project description:The experiment was conducted to examine the influence of non-chloroplast genomes rearangements on chloroplast transcription in cucumber

2011-09-10 | E-MEXP-3233 | biostudies-arrayexpress

Salt stress influence on cucumber chloroplast transcription

Project description:The experiment was made do to assess the influence of increased salt concentration on cucumber chloroplast transcription. We used 0,4M NaCl water solution and we checked its influence on plants after 0, 4, 8, 24, 48 hours. We have also measured changes in chloroplast gene expression after recovery of plants in water (48 hours of 0,4M NaCl solution treatment followed by 48 hours in clean water). Other growth conditions weren't changed comparing to those of standard plants growth in our experiments (check: versatile chamber growth protocol)

2011-09-10 | E-MEXP-3234 | biostudies-arrayexpress

ECBiG PlasTi-microarray CSH validation

Project description:Experiment evaluating aplicability of PlasTi-microarray for cross-species hybridization studies. PlasTi-microarray is a tiling oligonucleotide microarray originally designed for cucumber plastome analysis.Chloroplast RNA from Arabidopsis, tomato and spinach leaves was extracted, labelled and hybridized to PlasTi-microarray with the cucumber samples labelled with the second dye as a control. For each species, one biological sample and one technical replicate (labelled in a dye-swap orientation) were analyzed, resulting in two microarray hybridizations per species and six microarrays (a-f) in total.

2011-05-27 | E-MEXP-3220 | biostudies-arrayexpress

Chemicaly induced light stress influence on chloroplast transcription

Project description:Influence of DBMIB or DCMU influence on chloroplast transcription. Both solution treatments were compared to reference (non treated leaves)

2011-09-10 | E-MEXP-3229 | biostudies-arrayexpress

Comparative transcriptomic analysis reveals the roles of microtubule-related genes and transcription factors in fruit length regulation in cucumber (Cucumis sativus)

Project description:Cucumber (Cucumis sativus L.) fruit is a type of fleshy fruit that is harvested immaturely. Early fruit development directly determines the final fruit length and diameter, and consequently the fruit yield and quality. Different cucumber varieties display huge variations of fruit length, but how fruit length is determined at the molecular level remains poorly understood. To understand the genes and gene networks that regulate fruit length in cucumber, high throughout RNA-seq data were used to compare the transcriptomes of early fruit from two near isogenic lines with different fruit lengths. 3955 genes were found to be differentially expressed, among which 2368 genes were significantly up-regulated and 1587 down-regulated in the line with long fruit. Microtubule and cell cycle related genes were dramatically activated in the long fruit, and transcription factors were implicated in the fruit length regulation in cucumber. Thus, our results built a foundation to dissect the molecular mechanism of fruit length control in cucumber, a key agricultural trait of significant economic importance. Comparative analysis of fruit from two near-isogenic lines, 408 (long fruit) and 409 (short fruit), was employed to discover genes and networks that regulate the fruit length. Two biological replicates were used from each line.

2015-08-11 | E-GEOD-60346 | biostudies-arrayexpress

Proteomic Analysis Reveals Key Proteins Involved in Ethylene-Induced Adventitious Root Development in Cucumber (Cucumis sativus L.)

Project description:Ethylene, as a signaling hormone molecule, is proved to have essential role in the process of root development. In the present study, cucumber (Cucumis sativus L.) seedlings were employed to estimate differentially expressed proteins (DEPs) during the adventitious rooting using iTRAQ technique and proteomics analysis. Out of the 5014 DEPs, 115 DEPs were considered as identified proteins, and among them, 24 DEPs are interesting proteins abundance.

2020-01-15 | PXD016444 | Pride

Transcriptome analysis of cucumber response to nitrogen deficiency

Project description:Nitrogen is the most important mineral nutrient of plant. As a worldwide and economically important vegetable, cucumber (Cucumis sativus L.) has a strong nitrogen-dependence. We took whole transcriptome sequencing approach to compare the gene expression profiles of cucumber leaves and roots grown under sufficient or insufficient nitrate supply. Analysis of the transcriptome data revealed that the root and leaf adapt different response mechanisms to long-term nitrogen deficiency. Photosynthesis and carbohydrate biosynthetic process were pronouncedly and specifically reduced in leaf, while the ion transport function, cell wall and phosphorus-deficiency response function seem systematically down-regulated in root. Genes in nitrogen uptake and assimilation are decreased in root, but some are increased in leaf under nitrogen deficiency. Several lines of evidence suggest that the altered gene expression networks support the basic cucumber growth and development likely through successful nitrogen remobilization involving in the induced expression of genes in ABA and ethylene pathways. cucumber leaf and root mRNA of 28-day after sowing nitrogen deficiency and sufficiency deep sequencing, using Illumina HiSeq 2000

2015-05-07 | E-GEOD-46678 | biostudies-arrayexpress

Comparative proteomic analysis provides novel insights into the complex responses to Pseudoperonospora cubensis infection of cucumber (Cucumis sativus L.)

Project description:Cucumber (Cucumis sativus L.) is an economically important vegetable crop distributed in over 80 countries. Downy mildew (DM) caused by the obligate oomycete Pseudoperonospora cubensis is especially destructive in cucumber production. So far, few studies on the changes in proteomes during the P. cubensis infection have been performed. Using a newly developed TMT-LC-MS/MS analysis, the proteomes of DM-resistant variety ‘ZJ’ and DM-susceptible variety ‘SDG’ under the P. cubensis infection were investigated. In total, 6400 proteins were identified, 5629 of which were quantified. The differential accumulated proteins (DAPs) exhibited various biological functions and diverse subcellular localizations. KEGG enrichment analysis showed that various metabolic pathways were significantly altered under the P. cubensis infection, such as terpenoid backbone biosynthesis, and selenocompound metabolism in ZJ, and starch and sucrose metabolism in SDG. Most of the enzymes associated with terpenoid backbone synthesis were significantly accumulated in ZJ rather than in SDG, suggesting that pathogen-induced terpenoids accumulation might play an important role in the resistance against P. cubensis infection. Furthermore, a number of pathogenesis-related proteins and heat shock proteins were identified as DAPs, suggesting that DM resistance was controlled by a complex network. Our data allowed us to identify and screen more potential proteins related to the DM resistance.

2019-11-12 | PXD010844 | Pride

Analysis of protein regulation in cucumber leaves after Corynespora cassiicola inoculation: a proteomic approach

Project description:Corynespora leaf spot (CSL), caused by Corynespora cassiicola, has become one of the most important foliar diseases of cultivated cucumber. However, the defense mechanisms of cucumber plants in response to C. cassiicola are still poorly understood. Here, proteins from resistant plants were analyzed using isobaric tags for relative and absolute quantification (iTRAQ). A total of 286 differentially expressed proteins were identified (P<0.05, ratio>1.2 or <0.83) at 6 and 24 h after pathogen inoculation in the resistant cucumber cultivar Jinyou 38. Some of the early responses to C. cassiicola infection were revealed, and four vital clues regarding the resistance of Cucumis sativus to cucumber CLS were discovered. First, the proteomic approach revealed the modulation of signaling pathways in resistant cucumber plants in response to C. cassiicola infection. Second, the plant immune system recognizes the pathogen and initiates the expression of basal immune response proteins, including those related to defense and stress responses, signal transduction, cell metabolism and redox regulation. Third, the common stress pathways were activated by C. cassiicola; in particular, mildew resistance locus O (MLO) proteins played a crucial role in the prevention of CLS. Fourth, the rapid activation of the carbohydrate and secondary metabolic pathways, the modification and reinforcement of cell walls, and the adjustment of the apoplectic environment to high-stress conditions were crucial in cucumber resistance to CLS disease. Overall, our data increase the knowledge of incompatible interactions between plants and pathogens and provide new insight into the contribution of molecular processes in cucumber to disease resistance.

2019-09-26 | PXD012903 | Pride

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