What does this research mean for the field?

Exogenous application of GA3 accelerates flower bud differentiation and increases flowering rates in Lycoris aurea by modulating hormone signaling pathways and carbohydrate metabolism. Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To determine whether exogenous gibberellin A3 (GA3) accelerates flower bud differentiation and shortens the flowering cycle in Lycoris aurea, while uncovering the underlying hormonal and metabolic mechanisms.

September 8, 2026BMC Plant BiologyOpen Access

Exogenous GA3 promotes flower bud differentiation in Lycoris aurea by modulating hormone signaling and carbohydrate metabolism

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Authors

YLYing LiMacau University of Science and Technology GSGuy SmaggheVrije Universiteit Brussel ZHZenghong Hu

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Implication

Experimental study reveals accelerated flower bud differentiation via gibberellic acid in Lycoris aurea, suggesting a hormonal strategy to optimize ornamental flowering.

Key Points

To determine whether exogenous gibberellin A3 (GA3) accelerates flower bud differentiation and shortens the flowering cycle in Lycoris aurea, while uncovering the underlying hormonal and metabolic mechanisms.
Treated Lycoris aurea bulbs with exogenous GA3 and evaluated flowering rates alongside histological analyses of floral primordium differentiation.
Quantified hormone levels (GA3, IAA, ABA, ZR) and carbohydrate concentrations (starch, sucrose, soluble sugars) across differentiation stages.
Conducted integrated transcriptomic and metabolomic profiling to trace hormone signaling pathways and carbohydrate metabolic fluxes.
Exogenous GA3 promoted floral primordium differentiation and significantly increased flowering rates, identifying 200 mg/L as the optimal concentration.
Early bud differentiation was marked by the accumulation of starch, sucrose, and soluble sugars, coordinated by enzymes such as PYG, AMY, HK, and SUS to yield sugar signals including glucose, trehalose, and isomaltose.
Multi-omics indicated GA3 activated GID1-mediated GA signaling, up-regulated SAUR and SnRK2 in IAA and ABA cascades, and repressed jasmonoyl-isoleucine (JA-Ile) signaling.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/6a9fd7b758e84d0ff5b4696d https://doi.org/10.1186/s12870-026-09772-4

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Implication

Experimental study reveals accelerated flower bud differentiation via gibberellic acid in Lycoris aurea, suggesting a hormonal strategy to optimize ornamental flowering.

Exogenous GA3 promotes flower bud differentiation in Lycoris aurea by modulating hormone signaling and carbohydrate metabolism

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Implication

Key Points

Cite This Study

Exogenous GA3 promotes flower bud differentiation in Lycoris aurea by modulating hormone signaling and carbohydrate metabolism

Discussion

Member takes

Implication

Key Points

Cite This Study

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