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ABSTRACT:
PROVIDER: PRJNA1000203 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Seed germination is a complicated physiological process, during which structures of mitochondria and plastids are recovered, and metabolisms are re-activated (Han and Yang, 2015). It has been shown that metabolism reactivation is very important for rice germination (He et al., 2011b;Han et al., 2014a). It is still unknown if protein acetylation involved in and regulate these metabolisms during rice seed germination. To answer this question, we globally profiled the acetylome in rice embryos from the germinating seeds. A number of acetylated enzymes were identified. The results provide more information about the metabolism regulation in germinating seeds.
2016-01-26 | PXD002739 | Pride
Project description:The profiling was conducted with the Rice 3'-Tiling Microarray designed from 27,448 genes deposited at IRGSP, RAP1 database (http://rapdb.lab.nig.ac.jp). In this research, an array of 27,448 rice genes was used to elucidate the transcriptome of 7 tissues or organs of Oryza sativa L. cv. Dongjin including calli, regenerating calli, germinating seeds, leaves, roots, and flowers (before and after pollination) using a rice 3â² ORF tilling microarray. The ratio of standard deviation to the mean of microarray intensities was used to distinguish between organ-specific and constitutively expressed genes. Accordingly, the genes are classified into highly variable, variable, and constitutive groups. To isolate the organ-specific promoters, several genes were selected and validated in planta using reporter gene analysis. We found that the Os01g0702500, Os11g0211800, and Os01g0257300 promoters were active in the calli, germinating seeds, and roots, respectively. The Os08g0135500 promoter was shown to drive transgene expression in various organs of the mature flowers, such as the anther, lemma, and palea, whereas the Os03g0369100 promoter was only active in the anther. Lastly, the Os09g0553100 promoter induced high levels of reporter gene expression in all organs. The gene expression data from representative organs could put a frame work for large dataset collections and then subsequent profiling by subdivision of organ/tissues might be more efficient to find appropriate promoters. A total of 14 chips were used for microarray. Total RNAs were extracted from rice 7 tissues or organs of Oryza sativa L. cv. Dongjin including calli, regenerating calli, germinating seeds, leaves, roots, and flowers (before and after pollination. Experiments were duplicated.
2016-07-28 | E-GEOD-84903 | biostudies-arrayexpress
Project description:To shed light on the genetic events downstream of DELLA proteins, we have employed a microarray expression profiling of Arabidopsis thaliana seeds to identify target genes of the DELLA protein RGL2. Seeds of the germinating ga1-3 rga-t2 rgl2-1 and the non-germinating ga1-3 rga-t2 mutant were stratified, and RNA was extracted after five days. Transcript profiles of the non-germinating seeds closely resemble profiles of dormant seeds, and several transcription factors involved in light- and phytohormone-regulated signalling pathways appear to be up-regulated, suggesting that RGL2 controls various physiological aspects to inhibit seed germination.
2012-08-31 | GSE40485 | GEO
Project description:MicroRNAs (miRNAs) are important post-transcriptional regulators of plant development. In soybean (Glycine max), an important edible oil crop, valuable lipids are synthesized and stored in the cotyledons during embryogenesis .This storage lipids are used as energy source of the emerging seeds, during the germination procces. Until now, there are no microRNAs related to lipid metabolism in soybean or any other plant. This work aims to describe the miRNAome of germinating seeds of B. napus by identifying plant-conserved and novel miRNAs and comparing miRNA abundance in mature versus germinating seeds. A total of 183 familes were detected through a computational analysis of a large number of reads obtained from deep sequencing from two small RNA libraries of (i) pooled germintaing seeds stages and (ii) mature soybean seeds. We have found 39 new mirna precursors which produce 41 new mature forms. The present work also have identified isomiRNAs and mirnas offset (moRNAs). This work presents a comprehensive study of the miRNA transcriptome of soybean germinating seeds and will provide a basis for future research on more targeted studies of individual miRNAs and their functions in lipid consumption in development soybean seeds.
2015-05-25 | GSE38373 | GEO
Project description:The profiling was conducted with the Rice 3'-Tiling Microarray designed from 27,448 genes deposited at IRGSP, RAP1 database (http://rapdb.lab.nig.ac.jp). In this research, an array of 27,448 rice genes was used to elucidate the transcriptome of 7 tissues or organs of Oryza sativa L. cv. Dongjin including calli, regenerating calli, germinating seeds, leaves, roots, and flowers (before and after pollination) using a rice 3′ ORF tilling microarray. The ratio of standard deviation to the mean of microarray intensities was used to distinguish between organ-specific and constitutively expressed genes. Accordingly, the genes are classified into highly variable, variable, and constitutive groups. To isolate the organ-specific promoters, several genes were selected and validated in planta using reporter gene analysis. We found that the Os01g0702500, Os11g0211800, and Os01g0257300 promoters were active in the calli, germinating seeds, and roots, respectively. The Os08g0135500 promoter was shown to drive transgene expression in various organs of the mature flowers, such as the anther, lemma, and palea, whereas the Os03g0369100 promoter was only active in the anther. Lastly, the Os09g0553100 promoter induced high levels of reporter gene expression in all organs. The gene expression data from representative organs could put a frame work for large dataset collections and then subsequent profiling by subdivision of organ/tissues might be more efficient to find appropriate promoters.
2016-07-28 | GSE84903 | GEO
Project description:Sucrose non-fermenting-1-related protein kinase 1 (SnRK1) is a central regulator of metabolism and developmental transition in plant. Compound 991 is a well-known 5′-adenosine monophosphate activated protein kinase (AMPK) activator in mammals. SnRK1 and AMPK are highly conserved. However, whether 991 could also act as a SnRK1 activator is unknown. Adding 991 significantly increased the activity of SnRK1 in desalted extracts from germinating rice seeds in vitro. To determine whether 991 has biological activity in plant, rice seeds were treated with different concentrations of 991. Low concentration of 991 promoted rice seed germination, while high concentration of 991 inhibited rice germination. The effect of 991 on rice germination is similar to the effect of OsSnRK1a overexpression on germination. To explore whether 991 affects germination by specifically affecting SnRK1, the germination status of the snrk1a mutant and WT under 1 μM 991 treatment were compared. The snrk1a mutant exhibited insensitivity to 991. Through phosphoproteomic analysis, we found that the differential phosphopeptides caused by 991 treatments and overexpression of OsSnRK1a are largely overlapped. Phosphoproteomic analysis also revealed that SnRK1 might affect rice germination by regulating the phosphorylation levels of S285-PIP2;4, S1013-SOS1 and S110-ABI5. These results showed that 991 is a specific and workable SnRK1 activator in rice. The promotion and inhibition of 991 treatments on germination also exist in wheat seeds. 991 is expected to be used for exploring the function of SnRK1 in more detail and depth and chemical regulation of growth and development in crops.
2024-02-04 | PXD044360 | Pride
Project description:To shed light on the genetic events downstream of DELLA proteins, we have employed a microarray expression profiling of Arabidopsis thaliana seeds to identify target genes of the DELLA protein RGL2. Seeds of the germinating ga1-3 rga-t2 rgl2-1 and the non-germinating ga1-3 rga-t2 mutant were stratified, and RNA was extracted after five days. Transcript profiles of the non-germinating seeds closely resemble profiles of dormant seeds, and several transcription factors involved in light- and phytohormone-regulated signalling pathways appear to be up-regulated, suggesting that RGL2 controls various physiological aspects to inhibit seed germination. Gene expression five days after stratification was measured in ga1-3 rga-t2 seeds, using seeds of the ga1-3 rga-t2 rgl2-1 mutant as reference. Two biological replicates were performed for each sample.
2012-08-31 | E-GEOD-40485 | biostudies-arrayexpress
Project description:MicroRNAs (miRNAs) are important post-transcriptional regulators of plant development. In soybean (Glycine max), an important edible oil crop, valuable lipids are synthesized and stored in the cotyledons during embryogenesis .This storage lipids are used as energy source of the emerging seeds, during the germination procces. Until now, there are no microRNAs related to lipid metabolism in soybean or any other plant. This work aims to describe the miRNAome of germinating seeds of B. napus by identifying plant-conserved and novel miRNAs and comparing miRNA abundance in mature versus germinating seeds. A total of 183 familes were detected through a computational analysis of a large number of reads obtained from deep sequencing from two small RNA libraries of (i) pooled germintaing seeds stages and (ii) mature soybean seeds. We have found 39 new mirna precursors which produce 41 new mature forms. The present work also have identified isomiRNAs and mirnas offset (moRNAs). This work presents a comprehensive study of the miRNA transcriptome of soybean germinating seeds and will provide a basis for future research on more targeted studies of individual miRNAs and their functions in lipid consumption in development soybean seeds. MicroRNA profiles in 2 different seed libraries (mature seeds and a pool of germinating seed stages) of Glycine max by deep sequencing (Illumina GAII).
2015-05-25 | E-GEOD-38373 | biostudies-arrayexpress
Project description:Plant seeds prepare for germination already during seed maturation. We performed a detailed transcriptome analysis of barley grain maturation, desiccation and germination in two tissue fractions (endosperm/aleurone = e/a and embryo = em) using the Affymetrix barley1 chip. Experiment Overall Design: Barley developing and germinating seeds were harvested at different time points after flowering (developing) and imbibition (germinating). To further disseect the influence of different tissues, seeds were dissecte and tissues were analyzed individually.
2008-06-16 | E-GEOD-9365 | biostudies-arrayexpress