ArticleAnnals of botany2009
Expression of ABA signalling genes and ABI5 protein levels in imbibed Sorghum bicolor caryopses with contrasting dormancy and at different developmental stages.
Article in Annals of botany, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Evaluation of S7, a synthetic partial abscisic acid agonist, as a potential suppressor of pre-harvest sprouting in rice.BMC plant biology · 2026Article
- Genome-wide association and haplotype analyses reveal genetic architecture of seed dormancy in grain sorghum with implications for preharvest sprouting tolerance.The plant genome · 2026Article
- Genome-wide analysis and expression profiling ofFrontiers in plant science · 2026Article
- Introgression of dwarfing allele dw1 reduced seed dormancy and increased pre-harvest sprouting susceptibility in grain sorghum converted lines.Plant biotechnology journal · 2025Article
- Genome-wide identification, evolution, and expression level analysis of the TALE gene family in Sorghum bicolor.BMC plant biology · 2024Article
- RNA-seq study reveals the signaling and carbohydrate metabolism regulators involved in dormancy release by warm stratification inPlant biotechnology (Tokyo, Japan) · 2022Article
- Transcriptome and Proteome Co-Profiling Offers an Understanding of Pre-Harvest Sprouting (PHS) Molecular Mechanisms in Wheat (Plants (Basel, Switzerland) · 2022Article
- Review
- Chilling Requirement Validation and Physiological and Molecular Responses of the Bud Endodormancy Release inInternational journal of molecular sciences · 2021Article
- Article
- Functional and molecular characterization of the conserved Arabidopsis PUMILIO protein, APUM9.Plant molecular biology · 2019Article
- Genome-wide identification and characterization of InDels and SNPs in Glycine max and Glycine soja for contrasting seed permeability traits.BMC plant biology · 2018Article
- Pre-harvest Sprouting and Grain Dormancy inFrontiers in plant science · 2018Review
- Molecular Mechanisms Underlying Abscisic Acid/Gibberellin Balance in the Control of Seed Dormancy and Germination in Cereals.Frontiers in plant science · 2018Review
- Seed maturation associated transcriptional programs and regulatory networks underlying genotypic difference in seed dormancy and size/weight in wheat (Triticum aestivum L.).BMC plant biology · 2017Article
- Transcriptome analysis of seed dormancy after rinsing and chilling in ornamental peaches (Prunus persica (L.) Batsch).BMC genomics · 2016Article
- Gladiolus hybridus ABSCISIC ACID INSENSITIVE 5 (GhABI5) is an important transcription factor in ABA signaling that can enhance Gladiolus corm dormancy and Arabidopsis seed dormancy.Frontiers in plant science · 2015Article
- Functional genomics of seed dormancy in wheat: advances and prospects.Frontiers in plant science · 2014Review
- In vitro binding of Sorghum bicolor transcription factors ABI4 and ABI5 to a conserved region of a GA 2-OXIDASE promoter: possible role of this interaction in the expression of seed dormancy.Journal of experimental botany · 2013Article
- Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsPre-harvest sprouting susceptibility in grain sorghum (Sorghum bicolor) is related to low seed dormancy and reduced embryo sensitivity to inhibition of germination by abscisic acid (ABA). Intra-specific variability for pre-harvest sprouting might involve differential regulation of ABA signalling genes.
methodsSorghum genes encoding homologues for ABA signalling components from other species (ABI5, ABI4, VP1, ABI1 and PKABA1) were studied at the transcriptional and protein level (ABI5) during grain imbibition for two sorghum lines with contrasting sprouting phenotypes and in response to hormones. KEY
resultsTranscript levels of these genes and protein levels of ABI5 were higher in imbibed immature caryopses of the more dormant line. Dormancy loss was related to lower transcript levels of these genes and lower ABI5 protein levels in both genotypes. Exogenous ABA inhibited germination of isolated embryos but failed to prevent ABI5 rapid decrease supporting a role for the seed coat in regulating ABI5 levels.
conclusionsSeveral genes involved in ABA signalling are regulated differently in imbibed caryopses from two sorghum lines with contrasting pre-harvest sprouting response before - but not after - physiological maturity. A role for ABI5 in the expression of dormancy during grain development is discussed.
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