ArticleJournal of experimental botany2025
Strigolactones coordinate barley tillering and grain size.
Article in Journal of experimental botany, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Comparative Genome-Wide Association Studies of Metabolites and Grain-Related Traits in Common Wheat.Plant biotechnology journal · 2026Article
- Strigolactone (GR24) promotes arbuscular mycorrhizal colonization and wheat root growth.Planta · 2026Article
- Strigolactone-mediated architecture regulation and stress resilience: Insights and innovations for crop breeding.Journal of integrative plant biology · 2026Review
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Authors and funding
7 authors.
Funding
Abstract
The strigolactone (SL) plant hormone pathway inhibits tiller bud outgrowth. SLs also influence plant height, grain number, and grain size, but it is unclear how these traits are connected. To separate the effects of SLs on plant architecture, grain size, and yield, we tested SL barley mutant plants in a range of conditions and utilized exogenous hormone-related treatments. SL mutants consistently showed smaller average grain mass, even when tiller number was similar to that of the wild type. However, direct hormone treatments of developing grains caused a reduction in grain size, while inhibition of the pathway had an opposite effect. A direct effect of SL in the grain is consistent with the expression of specific SL-related genes across key stages of grain development. These findings suggest that SLs have a dual action by regulating vegetative stages to indirectly promote barley grain size, while directly repressing grain size later during reproduction. This raises important implications for increasing crop yield through manipulation of the SL pathway.
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Registered trials
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