Boron homeostasis functions in meristem maintenance in maize by regulating knotted1, cell cycle, and hormone signaling pathways
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PROVIDER: PRJNA717179 | ENA |
REPOSITORIES: ENA
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Project description:Here we report, that levels of the micronutrient boron are instrumental for meristem maintenance by integration into specific meristem maintenance pathways. We used RNA-seq analysis of the boron deficient maize mutant tassel-less1 to identify early molecular defects induced by boron deficiency in maize reproductive (tassel) meristems. RNA-seq results were independently verified through downstream in silico, double mutant, microscopy, proteomic, and molecular analyses.
2022-08-31 | GSE169600 | GEO
Project description:Poplars are known to be highly tolerant species to boron toxicity and accumulation. However, genes and molecular networks responsible in boron toxicity tolerance have not been investigated yet. Therefore, we performed a pot experiment with 20 black poplar clones collected from the vicinity of boron mines and polluted areas to investigate its potential role in phytoremediation and to select the most boron toxicity tolerant genotype. Trees were treated with irrigation water containing seven elevated boron concentrations from 0 to 160 ppm. Then a microarray based comparative transcriptome profiling was conducted to identify boron toxicity regulated genes responsible in defence responses of black poplar. The results of the study indicated that black poplar is quite suitable for phytoremediation of boron pollution. It could resist 15 ppm soil B content and < 1600 mg/kg boron accumulation in leaves which are highly toxic concentrations for almost all agricultural plants. Transcriptomics results of study revealed totally 1625 and 1419 altered probe sets under boron toxicity in leaf and root tissues, respectively. The highest induction were recorded for the probes sets annotated to tyrosine aminotransferase, ATP binding cassette transporters, glutathione S transferases and metallochaperone proteins. Strong up regulation of these genes attributed to internal excretion of boron into the cell vacuole and existence of detoxification processes in black poplar. Many candidate genes functional in signalling, gene regulation, antioxidation, boron uptake, transport and detoxification processes were also identified in the current study. This is the first transcriptomic study identifying boron toxicity regulated poplar genes and their potential role in boron toxicity tolerance.
2016-06-28 | GSE83745 | GEO
Project description:Poplars are known to be highly tolerant species to boron toxicity and accumulation. However, genes and molecular networks responsible in boron toxicity tolerance have not been investigated yet. Therefore, we performed a pot experiment with 20 black poplar clones collected from the vicinity of boron mines and polluted areas to investigate its potential role in phytoremediation and to select the most boron toxicity tolerant genotype. Trees were treated with irrigation water containing seven elevated boron concentrations from 0 to 160 ppm. Then a microarray based comparative transcriptome profiling was conducted to identify boron toxicity regulated genes responsible in defence responses of black poplar. The results of the study indicated that black poplar is quite suitable for phytoremediation of boron pollution. It could resist 15 ppm soil B content and < 1600 mg/kg boron accumulation in leaves which are highly toxic concentrations for almost all agricultural plants. Transcriptomics results of study revealed totally 1625 and 1419 altered probe sets under boron toxicity in leaf and root tissues, respectively. The highest induction were recorded for the probes sets annotated to tyrosine aminotransferase, ATP binding cassette transporters, glutathione S transferases and metallochaperone proteins. Strong up regulation of these genes attributed to internal excretion of boron into the cell vacuole and existence of detoxification processes in black poplar. Many candidate genes functional in signalling, gene regulation, antioxidation, boron uptake, transport and detoxification processes were also identified in the current study. This is the first transcriptomic study identifying boron toxicity regulated poplar genes and their potential role in boron toxicity tolerance. Total RNA used in microarray experiment was isolated from the leaves and roots of black poplar clone; N.92.237 which accumulated the highest amount of boron its tissues. Total RNA used in the microarray experiment was isolated from leaves and roots of three black poplar saplings grown in ~ 2 ppm (control) and ~ 15 ppm (toxic) soil B contents. RNA isolation was made according to Lithium chloride precipitation method described in Chang et al. (1993). These three isolated RNAs (biological replicates) for each tissue loaded onto three Affymetrix poplar Gene Chips (technical replicates). Totally, 12 GeneChips (2 tissues Ã? 2 different B treatment Ã? 3 biological replicates) were used for transcriptional analysis.
2016-06-28 | E-GEOD-83745 | biostudies-arrayexpress
Project description:Transcriptional profiling of yeast wild type BY4741, gcn4 and yap1 mutants in response to boron treatment. Transcriptional profiling of yeast wild type BY4741, gcn4 and yap1 mutants in response to boron treatment.
2011-07-19 | E-GEOD-29887 | biostudies-arrayexpress
Project description:Boron is essential for plants, and boron availability in soil is an important determinant of agricultural production. Boron availability in soil is limited at many regions in the world, including Japan. Under boron deficient conditions, leaf expansion and root elongation, apical dominance, flower development,and fruit and seed sets are inhibited. In this work, we analyzed the mRNA expression of genes containing AUGUAA motif in their 5′-UTR, which is induced by boron. We used microarrays to detail the global gene expression underlying boron deficiency in roots.
2013-11-13 | GSE52208 | GEO
Project description:Boron is essential for plants, and boron availability in soil is an important determinant of agricultural production. Boron availability in soil is limited at many regions in the world, including Japan. Under boron deficient conditions, leaf expansion and root elongation, apical dominance, flower development,and fruit and seed sets are inhibited. In this work, we analyzed the mRNA expression of genes containing AUGUAA motif in their 5M-bM-^@M-2-UTR, which is induced by boron. We used microarrays to detail the global gene expression underlying boron deficiency in roots. Plants were grown on solid medium containing 1% (w/v) sucrose, 1.5% (w/v) gellan gum and 100 M-BM-5M boron for 10 days and then transferred to 0.3 and 100 M-BM-5M boron for 2 days. Plates were placed vertically at 22M-BM-0C in a growth chamber under long-day conditions (16 h light/8 h dark cycle). We analyzed the transcript profiles in roots by microarray analysis (Affymetrix ATH1 Genome Array).
2013-11-13 | E-GEOD-52208 | biostudies-arrayexpress
Project description:MERISTEM ACTIVITYLESS1 (MAL1) is involved in crown root development through the maintenance of meristem size in rice
| PRJNA594957 | ENA
Project description:We previously reported that ribosome stalling at AUG-stop sequences in the 5'-UTR plays a critical role in regulating the expression of Arabidopsis thaliana NIP5;1, which encodes a boron uptake transporter, in response to boron conditions in media. Here, we conducted ribosome profiling analysis to reveal the genome-wide regulation of translation in response to boron conditions in A. thaliana. We identified 460 translationally regulated genes. Transcripts with reduced translation efficiency were rich in upstream open reading frames (uORFs), highlighting the importance of uORF-mediated translational regulation. We found that 148 uORF instances had greater ribosome density under high boron conditions. Moreover, translationally downregulated transcripts were rich in minimum uORFs (AUG-stops), suggesting that AUG-stops play a global role in the boron response. Boron increased the ribosome occupancy of stop codons, indicating that this element is involved in global translational termination processes.
2022-02-13 | GSE141765 | GEO
Project description:Transcriptional profiling of yeast wild type BY4741, gcn4 and yap1 mutants in response to boron treatment.
2011-07-20 | GSE29887 | GEO
Project description:Boron is an essential micronutrient for plants and is taken up in the form of boric acid (BA). Despite this, a high BA concentration is toxic for the plants, inhibiting root growth and is thus a significant problem in semi-arid areas in the world. In this work, we report the molecular basis for the inhibition of root growth caused by boron. We used microarrays to detail the global gene expression underlying boron toxicity in roots.
2011-11-01 | GSE32659 | GEO