In order to understand the microcommunities of the grape phyllosphere
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ABSTRACT:
PROVIDER: PRJNA477651 | ENA |
REPOSITORIES: ENA
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Project description:Solar ultraviolet C（UV-C）radiation reaching the Earth’s surface is little due to the filtering effects of the stratospheric ozone layer. At present, artificial UV-C irradiation is utilized for different biological processes. Grape is a major fruit crop around the world. Research has shown that UV-C irradiation induced the biosynthesis of phenols. However, changes at the molecular level in response to UV-C and leading to these effects are poorly understood. To elucidate the effect of UV-C on expression of genes in grape and the response mechanism, transcript abundance of grape (Vitis vinifera L.) leaves was quantified using the Affymetrix Grape Genome oligonucleotide microarray (15,700 transcripts)
2014-11-15 | GSE62315 | GEO
Project description:Solar ultraviolet C（UV-C）radiation reaching the Earth’s surface is little due to the filtering effects of the stratospheric ozone layer. At present, artificial UV-C irradiation is utilized for different biological processes. Grape is a major fruit crop around the world. Research has shown that UV-C irradiation induced the biosynthesis of phenols. However, changes at the molecular level in response to UV-C and leading to these effects are poorly understood. To elucidate the effect of UV-C on expression of genes in grape and the response mechanism, transcript abundance of grape (Vitis vinifera L.) leaves was quantified using the Affymetrix Grape Genome oligonucleotide microarray (15,700 transcripts) Grape leaves were exposed to UV-C irradiation at 6W/m2 for 10 min. LCK-0-1, LCK-0-2 and LCK-0-3 are 0 h after the initiation of treatment and as the controls; LTR-6-1, LTR-6-2 and LTR-6-3 are for 6 h after the initiation of treatment; LTR-12-1, LTR-12-2 and LTR-12-3 are for 12 h after the initiation of treatment. Three replicates for each time point. 9 samples in all.
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Project description:Heat stress is one of the primary abiotic stresses that limit crop production . Grape is a popular cultivated fruit with high economic value throughout the world, and whose growth and development is often influenced by high temperature. Alternative splicing (AS) is a widespread mechanism increasing transcriptome complexity and proteome diversity. We conducted high temperature treatments (35oC, 40oC and 45oC) on grapevines (Vitis vinifera), and assessed proteomic and transcriptomic （especially AS）changes in leaves. We found that nearly 70% of the genes were alternatively spliced under high temperature. Intron retention (IR), exon skipping (ES) and alternative donor/acceptor sites were markedly induced under different high temperatures. IR was the most abundant up- and down-regulated AS event; moreover, IR events at 40 and 45oC were far higher than those at 35oC. These results indicated AS, especially IR, is an important posttranscriptional regulatory during grape leaf responses to high temperature. Proteomic analysis showed that protein levels of the RNA binding proteins SR45, SR30, and SR34, and the nuclear ribonucleic protein U1A in grape leaves gradually rose as ambient temperature increased. The results also revealed why AS events occurred more frequently under high temperature in grape leaves. After integrating transcriptomic and proteomic data, we found that HSPs and some important transcript factors such as MBF1c and HSFA2 were mainly involved in heat tolerance in grape through up-regulating transcriptional and translational levels, and were especially modulated by AS. The results provide the first simultaneous evidence for grape leaf responses to high temperature at transcriptional, posttranscriptional and translational levels.
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