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RNA-Seq of Sorghum bicolor 9d seedlings in response to osmotic stress and abscisic acid

ABSTRACT: This study utilized next generation sequencing technology (RNA-Seq) to examine the transcriptome of sorghum plants challenged with osmotic stress and exogenous abscisic acid (ABA) to elucidate those genes and gene networks that contribute to sorghum's tolerance to water-limiting environments with a long-term aim of developing strategies to improve plant productivity under drought.

ORGANISM(S): Sorghum bicolor

PROVIDER: GSE30249 | GEO | 2011/10/27

SECONDARY ACCESSION(S): PRJNA143783

REPOSITORIES: GEO

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RNA-Seq of Sorghum bicolor 9d seedlings in response to osmotic stress and abscisic acid

Project description:This study utilized next generation sequencing technology (RNA-Seq) to examine the transcriptome of sorghum plants challenged with osmotic stress and exogenous abscisic acid (ABA) to elucidate those genes and gene networks that contribute to sorghum's tolerance to water-limiting environments with a long-term aim of developing strategies to improve plant productivity under drought. We examined the mRNA of 9 day old Sorghum bicolor (BTx623) from 2 tissue types (roots and shoots) for 2 treatments (20 uM ABA and 20% PEG) with corresponding controls (0.2M NaOH and H2O) for 27 hrs prior to harvesting, each done in triplicate biological replicates - resulting in 24 unique runs

2011-10-26 | E-GEOD-30249 | biostudies-arrayexpress

Genome-wide analysis of abscisic acid biosynthesis, catabolism, and signaling in Sorghum bicolor under saline-alkali stress

Project description:Sorghum (Sorghum bicolor) is the fifth most important cereal crop in the world. It is an annual C4 crop having a high biomass, used widely, and has a strong resistance to stress. Obviously, there are many benefits of planting sorghum on marginal soils such as saline-alkali land.

2020-12-03 | GSE140928 | GEO

Gene expression responses to ABA and to osmotic stress in the bon123 triple mutant

Project description:Hyperosmotic stress caused by drought and salinity is a significant environmental threat that limits plant growth and agricultural productivity. Osmotic stress induces diverse responses in plants including Ca2+ signaling, accumulation of the stress hormone abscisic acid (ABA), reprogramming of gene expression, and altering growth. Despite intensive investigation, no global regulators of all of these responses have been identified. Here, we show that the Ca2+-responsive phospholipid binding BONZAI (BON) proteins are critical for all of these osmotic stress responses. A Ca2+-imaging-based forward genetic screen identified a loss-of-function bon1 mutant with a reduced cytosolic Ca2+ signal in response to hyperosmotic stress. The loss-of-function mutants of the BON1 gene family, bon1bon2bon3, are impaired in the induction of gene expression and ABA accumulation in response to osmotic stress. In addition, the bon mutants are hypersensitive to osmotic stress in growth inhibition. BON genes have been shown to negatively regulate plant immune responses mediated by intracellular immune receptor NLR genes including SNC1. We found that the defects of the bon mutants in osmotic stress responses were suppressed by mutations in the NLR gene SNC1 or the immunity regulator PAD4. Our findings indicate that NLR signaling represses osmotic stress responses and that BON proteins suppress NLR signaling to enable global osmotic stress responses in plants.

2020-09-04 | GSE157435 | GEO

Rebuilding core abscisic acid signaling pathways of Arabidopsis in yeast

Project description:The signaling pathway of the phytohormone abscisic acid (ABA) regulates responses towards abiotic stress such as drought and high osmotic conditions. The multitude of functionally redundant components involved in ABA signaling, poses a major challenge for elucidating the largely unresolved response selectivity. We decided rebuilding single linear ABA signaling pathways in yeast for combinatoric permutation of ABA receptors and coreceptors, as well as the response-mediating SnRK2 protein kinases and their targeted transcription factors to drive luciferase expression in a heterologous host. We show that SnRK2s differ in the regulation by ABA receptor complexes, affect ABA responsiveness of the pathway, and differ in their transactivation activity but have similar preferences for ABA-responsive transcription factors. SnRK2s thought to act ABA-independently and known to be activated under osmotic stress in plants were regulated by ABA receptor complexes in yeast and competed with ABA receptor components in an ABA-dependent manner in plant tissue. The study reveals the suitability of the yeast system for analysis of ABA signaling factors and allowing the future dissection of ligand-receptor specificities in a functional response pathway. The analysis provides new insights into SnRK2 regulation indicating that four SnRK2 members of the osmotic stress response are tightly embedded into the ABA signaling pathway.

2019-07-30 | PXD013669 | Pride

Tissue specific expression data in Sorghum bicolor BTx623

Project description:This study used with RNA-Seq to examine the tissue specific expression data within sorghum plants for improving the Sorghum bicolor gene annotation. We examined the RNA from tissues (spikelet, seed and stem) in Sorghum bicolor (BTx623).Total RNAs form each tissues were extracted using SDS/phenol method followed by LiCl purification

2015-03-11 | E-MTAB-4273 | biostudies-arrayexpress

RNA-Seq and BS-Seq of Sorghum bicolor tissues

2014-08-29 | GSE50464 | GEO

Functional annotation of the transcriptome of Sorghum bicolor in response to osmotic stress and abscisic acid.

Project description: Not available

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RNA-Seq and BS-Seq of Sorghum bicolor tissues

Project description:This study utilized next generation sequencing technology (RNA-Seq and BS-Seq) to examine the transcriptome and methylome of various tissues within sorghum plants with the ultimate goal of improving the Sorghum bicolor annotation We examined the mRNA of various Sorghum bicolor (BTx623) tissues (flowers, vegitative and floral meristems, embryos, roots and shoots) and bisulfite treated DNA from two root samples

2014-08-29 | E-GEOD-50464 | biostudies-arrayexpress

Sorghum bicolor and Setaria viridis PARE-seq

Project description:Parallel Analysis of RNA Ends (PARE) sequencing reads were generated to validate putative microRNAs and identify cleavage sites in Sorghum bicolor and Setaria viridis.

2020-05-19 | GSE150798 | GEO

Transcription profiling of Arabidopsis srk2cf mutant plants under abscisic acid (ABA) treatment for 0, 1 and 4 hours

Project description:Microarray experiments were performed using Arabidopsis wild type plants (Col-0) and srk2cf double knockout mutants to investigate functions of two osmotic stress-activated protein kinases, SRK2C and SRK2F. Transcription profiles of wild type and mutants were compared under abscisic acid (ABA) treatment for 0, 1 and 4 h.

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