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Expression data from transgenic rice with anti-OsPDCD5

ABSTRACT: Environmental stresses influence the growth of plants and the productivity of crops. Salinity is one of the most important abiotic stresses for agricultural crops. PCD is induced by various biotic and abiotic stresses in algae and higher plants, including high salinity treatment. OsPDCD5, an ortholog to mammalian-programmed cell death 5, is up-regulated under low temperature and NaCl treatments. We found that the transgenic rice which constitutively expressed anti-OsPDCD5 increased salt stress tolerance in unique ways. By using the Rice Genome Microarray, we identiﬁed target genes that were regulated in transgenic rice plants by anti-OsPDCD5.

ORGANISM(S): Oryza sativa

PROVIDER: GSE28209 | GEO | 2011/11/01

SECONDARY ACCESSION(S): PRJNA139653

REPOSITORIES: GEO

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Expression data from transgenic rice with anti-OsPDCD5

Project description:Environmental stresses influence the growth of plants and the productivity of crops. Salinity is one of the most important abiotic stresses for agricultural crops. PCD is induced by various biotic and abiotic stresses in algae and higher plants, including high salinity treatment. OsPDCD5, an ortholog to mammalian-programmed cell death 5, is up-regulated under low temperature and NaCl treatments. We found that the transgenic rice which constitutively expressed anti-OsPDCD5 increased salt stress tolerance in unique ways. By using the Rice Genome Microarray, we identi?ed target genes that were regulated in transgenic rice plants by anti-OsPDCD5. Leaf tissues of 2-week-old transgenic and nontransgenic seedlings (10 plants each) before 200mM NaCl treatment, 20mins and 3 hours after 200mM NaCl treatment, respectively, were selected.

2011-11-01 | E-GEOD-28209 | biostudies-arrayexpress

Expression data for stress treatment in rice seedlings

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Comparison of transcriptome profile between wild-type and dst mutant plants

Project description:Drought and salinity are two main abiotic-stresses negatively affecting crop growth and productivity worldwide with largely decreasing crop yields. The understanding of plant responses to stresses in physiology, genetics, and molecular biology will be greatly helpful to improve the tolerance of crops to abiotic-stresses through genetic engineering.To identify the genetic loci that control drought and salt tolerance in rice, we performed a large-scale screen for the mutants with altered drought and salt tolerance. A drought and salt tolerance (dst) mutant line was isolated.In this series, we compare the transcriptome of wild-type plant Zhonghua11 and dst mutants under the normal growth conditions. Keywords: genetic modification

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Project description:Drought and salinity are two main abiotic-stresses negatively affecting crop growth and productivity worldwide with largely decreasing crop yields. The understanding of plant responses to stresses in physiology, genetics, and molecular biology will be greatly helpful to improve the tolerance of crops to abiotic-stresses through genetic engineering. To identify the genetic loci that control drought and salt tolerance in rice, we performed a large-scale screen for the mutants with altered drought and salt tolerance. A drought and salt tolerance (dst) mutant line was isolated. In this series, we compare the transcriptome of wild-type plant Zhonghua11 and dst mutants under the normal growth conditions. Keywords: genetic modification 6 samples (3 biological replicates for each line) were used in this experiment.

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Transcriptome analysis of hrf1 transformed rice revealed crosstalk between disease resistance and drought tolerance mediated by Harpin

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JAZ1 attenuates drought resistance by regulating JA and ABA signaling in rice

Project description:Jasmonates (JA) and abscisic acid (ABA) are phytohormones known to play important roles in plant response and adaptation to various abiotic stresses including salinity, drought, wounding, and cold. JAZ (JASMONATE ZIM-domain) proteins have been reported to play negative roles in JA signaling. However, direct evidence is still lacking that JAZ proteins regulate drought resistance. In this study, OsJAZ1 was investigated for its role in drought resistance in rice. Expression of OsJAZ1 was strongly responsive to JA treatment, and it was slightly responsive to ABA, salicylic acid, and abiotic stresses including drought, salinity, and cold. The OsJAZ1-overexpression rice plants were more sensitive to drought stress treatment than the wild-type rice Zhonghua 11 (ZH11) at both the seedling and reproductive stages, while the jaz1 T-DNA insertion mutant plants showed increased drought tolerance compared to the wild-type plants. The OsJAZ1-overexpression plants were hyposensitive to MeJA and ABA, whereas the jaz1 mutant plants were hypersensitive to MeJA and ABA. In addition, there were significant differences in shoot and root length between the OsJAZ1 transgenic and wild-type plants under the MeJA and ABA treatments. A subcellular localization assay indicated that OsJAZ1 was localized in both the nucleus and cytoplasm. Transcriptome profiling analysis by RNA-seq revealed that the expression levels of many genes in the ABA and JA signaling pathways exhibited significant differences between the OsJAZ1-overexpression plants and wild-type ZH11 under drought stress treatment. Quantitative real-time PCR confirmed the expression profiles of some of the differentially expressed genes, including OsNCED4, OsLEA3, RAB21, OsbHLH006, OsbHLH148, OsDREB1A, OsDREB1B, SNAC1, and OsCCD1. These results together suggest that OsJAZ1 plays a role in regulating the drought resistance of rice partially via the ABA and JA pathways.

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Genome-wide identification of Drought-responsive Regulatory Coding and Non-coding Transcripts from Oryza sativa L. by deep RNA sequencing

Project description:Abiotic environmental stresses cause serious economic losses in agriculture. These stresses include temperature extremes, high salinity and drought. To isolate drought-responsive novel coding and noncoding genes, we used the next generation sequencing method from three rice cultivars (wild type nipponbare, nipponbare AP2 transgenic plants, wild type vandana). 36 NGS data of mRNA-seq, small RNA-seq, riboZero-seq were analyzed. For the analyses of these data we constructed a TF-TG (Transcription Factor-Target Gene) network and an ap2 rooted cascading tree. Using these networks and tress we isolated lincRNAs, differentially expressed miRNAs and their targets. We identified several drought stress-related novel/function unknown coding transcripts (transcription factors and functional genes) and non-coding transcripts (small noncoding transcripts such as microRNA and long noncoding transcripts) from these database analyses and have constructed databases of drought stress-related coding and noncoding transcripts Identification of drought-responsive Regulatory Coding and Non-coding Transcripts from rice by deep RNA sequencing

2016-09-06 | E-GEOD-74465 | biostudies-arrayexpress

Rice A20/AN1 zinc-finger containing stress-associated proteins (SAP1/11) and a receptor-like cytoplasmic kinase (OsRLCK253) interact via A20 zinc-finger and confer abiotic stress tolerance in transgenic Arabidopsis plants

Project description:The inbuilt mechanisms of plant survival have been exploited for improving tolerance to abiotic stresses. We have investigated the subcellular interactions of rice stress-associated proteins (SAPs) using yeast two-hybrid and FRET approaches and found that A20 domain mediates the interaction of OsSAP1 with self, its close homolog OsSAP11, and a rice receptor-like cytoplasmic kinase, OsRLCK253. Such interactions between OsSAP1/11 and with OsRLCK253 occur at nuclear membrane, plasma membrane and in nucleus. Functionally, both OsSAP11 and OsRLCK253 could improve the water-deficit and salt stress tolerance in transgenic Arabidopsis plants via a signaling pathway affecting the expression of several common endogenous genes. The yield in transgenic plants is also protected indicating the agronomic relevance of OsSAP11 and OsRLCK253 in conferring abiotic stress tolerance. Arabidopsis transgenic plants expressing rice genes OsSAP11 and OsRLCK253 were compared with untransformed plants at seedling level

2011-05-01 | E-GEOD-27861 | biostudies-arrayexpress

Expression data from leaves of rice plants overexpressing the OsCPK4 gene and control plants(empty vector) in normal conditions

Project description:The OsCPK4 gene is a member of the complex gene family of the Calcium-dependent protein kinases (CPKs) in rice. Expression of OsCPK4 is induced by high salinity, drought and the phytohormone abscisic acid. The OsCPK4 protein localizes to the plasma membrane. Transgenic rice overexpressing OsCPK4 enhances tolerance to salt and drought stress, the transgenic plants having stronger water-holding capability than control plants. Microarray analysis of OsCPK4 rice plants revealed up-regulation of genes involved in metabolism, particularly lipid metabolism, as well as genes involved in oxidative stress and redox control. Meanwhile, OsCPK4 overexpression has no impact on the expression of the well-characterized abiotic stress-associated transcription factors (i.e. DREB and NAC), or the typical salt and drought-inducible genes (i.e. LEA genes, including Dehydrin genes). Under salt stress conditions, the OsCPK4 transgenic lines showed lesser membrane lipid peroxidation as compared to control plants, indicating that OsCPK4 rice plants have a better capacity to prevent oxidative damage in cellular membrane lipids. Collectively, our data suggest that OsCPK4-mediated processes protect the plant cell from uncontrolled redox reactions affecting membrane functions, which, in turn, results in salt and drought tolerance. OsCPK4 shows great promise for genetic improvement of tolerance to abiotic stress in rice.

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