Claim · model-written summary
Lower Glc concentrations promoted cotton fiber elongation in cultured ovules.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- lower Glc concentrationse0
- Outcome
- cotton fiber elongatione0
- Direction
- promotede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton”
e0“lower Glc concentrations promoted cotton fiber elongation, while higher concentrations had inhibitory effects”
Title
Glucose regulates cotton fiber elongation by interacting with brassinosteroid
Xinyang Li; Wei Liu; Zhongying Ren; et al. Journal of Experimental Botany 2021. doi:10.1093/jxb/erab451
Other claims from this paper (12)
- Observation Glc content in cotton fibers was higher than in ovules during the fiber elongation stage.
- Intervention effect Higher Glc concentrations had inhibitory effects on cotton fiber elongation in cultured ovules.
- Intervention effect The hexokinase inhibitor N-acetylglucosamine (NAG) inhibited cotton fiber elongation in cultured ovules.
- Mechanism Glc-mediated fiber elongation depends on the Glc signal transduced by hexokinase.
- Intervention effect 150 mM Glc significantly activated brassinosteroid biosynthesis in cotton ovules.
- Intervention effect 150 mM Glc also increased the expression of brassinosteroid signaling-related genes.
- Intervention effect BR induced cotton fiber elongation in a dose-dependent manner in cultured ovules.
- Intervention effect Among hormones tested, only BR compensated for the inhibitory effects of NAG on fiber elongation in a Glc-containing medium.
- Intervention effect Ovules cultured with the BR biosynthetic inhibitor brassinazole had greatly reduced fiber elongation at all Glc concentrations tested.
- Intervention effect Ovules from the BR-deficient cotton mutant pag1 had greatly reduced fiber elongation at all Glc concentrations tested.
- Intervention effect Glc did not compensate for the inhibition of fiber elongation caused by BR biosynthetic defects.
- Mechanism The BR signaling pathway works downstream of Glc during cotton fiber elongation.