MiRNA expression data from low nitrate culture in leaf and root of maize
Ontology highlight
ABSTRACT:
ORGANISM(S): Oryza sativa Zea mays Arabidopsis thaliana Glycine max Physcomitrium patens Populus trichocarpa Medicago truncatula Sorghum bicolor Saccharum officinarum
PROVIDER: GSE31373 | GEO | 2011/09/01
SECONDARY ACCESSION(S): PRJNA154147
REPOSITORIES: GEO
Similar Datasets
Project description:Nitrate is the major source of nitrogen available for many crop plants and is often the limiting factor for plant growth and agricultural productivity especially for maize. Many studies have been done identifying the transcriptome changes under low nitrate conditions. However, the microRNAs (miRNAs) varied under nitrate limiting conditions in maize has not been reported. MiRNAs play important roles in abiotic stress responses and nutrient deprivation. Root is the organ that plants transport nitrate. we used the microarray systems to perform a genome-wide search to detect miRNAs responding to the chronic and transient nitrate limiting conditions in maize.
2011-09-01 | GSE31231 | GEO
Project description:Nitrate is the major source of nitrogen available for many crop plants and is often the limiting factor for plant growth and agricultural productivity especially for maize. Many studies have been done identifying the transcriptome changes under low nitrate conditions. However, the microRNAs (miRNAs) varied under nitrate limiting conditions in maize has not been reported. MiRNAs play important roles in abiotic stress responses and nutrient deprivation. Root is the organ that plants transport nitrate. we used the microarray systems to perform a genome-wide search to detect miRNAs responding to the chronic and transient nitrate limiting conditions in maize. MicroRNAs (miRNAs) are small, endogenous RNAs that are regulators of gene expression in plants and animals. And, miRNAs have been known for years to be important for phosphate, sulphate and copper deprivation responses in plants. In Arabidopsis, small RNA deep sequencing associated with nitrate response had been analyzed. However, information about the way by which miRNA are regulated by abiotic stresses in general and by low nitrate in particular is unavailable for maize. In this study, we used GeneChip® microarray systems to perform a genome-wide search to detect miRNAs responding to the chronic and transient nitrate limiting conditions in roots in maize.
2011-08-31 | E-GEOD-31231 | biostudies-arrayexpress
Project description:Nitrate (NO3-) is crucial for optimal plant growth and development and often limits crop productivity at the low availability. In comparison with model plant Arabidopsis, the molecular mechanisms underlying NO3- acquisition and utilization remain largely unclear in maize. In particular, only a few genes have been exploited to improve nitrogen use efficiency (NUE). Here, we demonstrated that NO3--inducible ZmNRT1.1B (ZmNPF6.6) positively regulated NO3--dependent growth and NUE in maize. We showed that the tandem duplicated proteoform ZmNRT1.1C is irrelevant to maize seedling growth under nitrate supply, however, loss-of-function of ZmNRT1.1B significantly weakened plant growth under adequate NO3- supply in both hydroponic and field conditions. 15N-labeled NO3- absorption assay indicated that ZmNRT1.1B mediated high-affinity NO3--transport and root-to-shoot NO3- translocation. Furthermore, upon NO3- supply, ZmNRT1.1B promotes cytoplasmic-to-nuclear shuttling of ZmNLP3.1 (ZmNLP8), which co-regulates the expression of genes involved in NO3- response, cytokinin biosynthesis and carbon metabolism. Remarkably, overexpression of ZmNRT1.1B in modern maize hybrids improved grain yield under nitrogen (N) limiting fields. Taken together, our study revealed a crucial role of ZmNRT1.1B in high-affinity NO3- transport and signaling and offers valuable genetic resource for breeding nitrogen use efficient high-yield cultivars.
2023-04-25 | GSE227472 | GEO
Project description:Does the NRT2.7 participate to the HATS?<br> We would like to understand the function of the AtNRT2.7 in nitrate transport under limiting and non limiting nitrate conditions.<br> Plants were harvested after 32 days for plants under high nitrogen nutrition and 42 days for low nitrogen nutrition. Plants were grown hydroponic condition (short day, 170 uE).
2007-07-01 | E-MEXP-801 | biostudies-arrayexpress
Project description:Transcriptomic analysis in response to Botrytis cinerea infections under conrasting nitrate regime Nitrogen (N) is one of the main limiting nutrients for plant growth and crop yield. It is well documented that changes in nitrate availability, the main N source found in agricultural soils, influences a myriad of developmental programs and processes including the plant defense response. Indeed, many agronomical reports indicate that the plant N nutritional status influences their ability to respond effectively when challenged by different pathogens. However, the molecular mechanisms involved in N-modulation of plant susceptibility to pathogens are poorly characterized. In this work, we show that Solanum lycopersicum defense response to the necrotrophic fungus Botrytis cinerea is affected by plant N availability, with higher susceptibility in nitrate-limiting conditions. Global gene expression responses of tomato against B. cinerea under contrasting nitrate conditions reveals that plant primary metabolism is affected by the fungal infection regardless of N regimes. This result suggests that differential susceptibility to pathogen attack under contrasting N conditions is not only explained by a metabolic alteration. We used a systems biology approach to identify the transcriptional regulatory network implicated in plant response to the fungus infection under contrasting nitrate conditions. Interestingly, hub genes in this network are known key transcription factors involved in ethylene and jasmonic acid signaling. This result positions these hormones as key integrators of nitrate and defense against B. cinerea in tomato plants. Our results provide insights into potential crosstalk mechanisms between necrotrophic defense response and N status in plants. To better understand the molecular changes underlying the impact of nitrate availability on plant susceptibility to B. cinerea, we performed plant transcriptome profiling assays on mock-treated (3 biological replicates) and infected plants ( 3 biological replicates) grown under three N conditions, using GeneChip Tomato Genome Arrays (Affymetrix).
2015-09-16 | E-GEOD-73006 | biostudies-arrayexpress
Project description:In maize, nitrate regulates root development thanks to the coordinated action of many players. In this study, the involvement of SLs and auxin as putative downstream components of the nitrate regulation of lateral root development was investigated. To this aim, the endogenous SL content of maize root in response to nitrate availability was assessed by means of LC-MS/MS and measurements of lateral root density in the presence of analogues or inhibitors of auxin and strigolactones were performed. Furthermore, un untargeted RNA-seq based approach was used to better characterize the participation of auxin and strigolacotones to the transcriptional signature of maize root response to nitrate. Our results suggested that N deprivation toughly induces zealactone and carlactonoic acid biosynthesis in maize root, to a higher extent if compared to P-deprived roots. Moreover, data on lateral root density led to hypothesise the existence of both auxin-dependent and auxin-independent effects of nitrate on LR development. In addition, the inhibition of SL biosynthesis seems to participate to the auxin-dependent induction of LR, but the involvement of further downstream unknown components cannot be ruled out.
2021-04-11 | GSE162411 | GEO
Project description:Maize root responds to nitrate by modulating its development thorough the coordinated action of many players, interacting one each other. Among them, nitric oxide is produced in primary root of previously deprived seedlings early after the nitrate provision, thus inducing root elongation. In this study, a molecular untargeted approach was applied to discriminate the signaling and physiological pathways regulated by nitrate through nitric oxide from those regulated by nitrate itself of by further downstream factors. To this aim an RNA-sequencing approach was applied to discover the main molecular signatures distinguishing the response of maize root to nitrate according to their dependency, or independency on nitric oxide. A set of subsequent detailed functional annotation tools (Gene Ontology enrichment, MapMan, KEGG reconstruction pathway, transcription factors detection) were used to try to gain further information on the importance of this molecule in the regulation of the maize transcriptional response to nitrate. Besides, the lateral root density was measured both in the presence of nitrate and in the presence of nitrate plus cPTIO, a specific NO scavenger, and compared to that observed for N-depleted roots. Our results led to identify six clusters of transcripts according to their responsiveness to nitric oxide and to their regulation by nitrate provision. In general, common and specific features for the six clusters were identified allowing to discompose the overall root response to nitrate according to its dependency on nitric oxide.
2021-09-01 | GSE173102 | GEO
Project description:As multicellular organisms, plants must integrate responses to environmental cues across different cell types and also over time. Nitrate is the major source of available Nitrogen for plants, and a limiting factor for plant growth and productivity. Plant root s are highly impacted by nitrate availability, modifying their architecture to optimize nitrate uptake from soils. In order to understand how this functional response is dynamically orchestrated across different cell types of the root, space and time must be addressed within the same experimental setup. We performed a transcriptomic analysis in five major root cell types of Arabidopsis plants in response to nitrate treatments considering short and long time exposure to this macronutrient. We found nitrate treatment triggers a dynamic reprogramming of root cell gene expression that follows a spatial pattern over time consistent with an early regulation of nitrate transport and assimilation in external layers of the root and a later regulation of hormonal and developmental processes in more internal layers of the root.
2022-01-01 | E-MTAB-9519 | biostudies-arrayexpress
Project description:Transcriptomic analysis in response to Botrytis cinerea infections under conrasting nitrate regime Nitrogen (N) is one of the main limiting nutrients for plant growth and crop yield. It is well documented that changes in nitrate availability, the main N source found in agricultural soils, influences a myriad of developmental programs and processes including the plant defense response. Indeed, many agronomical reports indicate that the plant N nutritional status influences their ability to respond effectively when challenged by different pathogens. However, the molecular mechanisms involved in N-modulation of plant susceptibility to pathogens are poorly characterized. In this work, we show that Solanum lycopersicum defense response to the necrotrophic fungus Botrytis cinerea is affected by plant N availability, with higher susceptibility in nitrate-limiting conditions. Global gene expression responses of tomato against B. cinerea under contrasting nitrate conditions reveals that plant primary metabolism is affected by the fungal infection regardless of N regimes. This result suggests that differential susceptibility to pathogen attack under contrasting N conditions is not only explained by a metabolic alteration. We used a systems biology approach to identify the transcriptional regulatory network implicated in plant response to the fungus infection under contrasting nitrate conditions. Interestingly, hub genes in this network are known key transcription factors involved in ethylene and jasmonic acid signaling. This result positions these hormones as key integrators of nitrate and defense against B. cinerea in tomato plants. Our results provide insights into potential crosstalk mechanisms between necrotrophic defense response and N status in plants.
2015-09-16 | GSE73006 | GEO
Project description:Development of crop varieties with high nitrogen use efficiency (NUE) is crucial for minimizing N loss, reducing environmental pollution and decreasing input cost. Maize is one of the most important crops cultivated worldwide and its productivity is closely linked to the amount of fertilizer used. A survey of the transcriptomes of shoot and root tissues of a maize hybrid line and its two parental inbred lines grown under sufficient and limiting N conditions by mRNA-Seq has been conducted to have a better understanding of how different maize genotypes respond to N limitation.
2014-01-09 | E-MTAB-4410 | biostudies-arrayexpress