FUM1 — Asparagus officinalis

Summary

A4U43_C07F14550 (FUM1) in asparagus (Asparagus officinalis) on chromosome 7 encodes a fumarate hydratase (EC 4.2.1.2) with fumarate hydratase activity, belonging to the fumarate lyase family. This gene is associated with the TCA cycle, fumarate and malate metabolism, regulation of photosynthesis, nitrate assimilation, pollen tube development, brassinosteroid-mediated signalling, and protein tetramerization. Its product localises to mitochondria, plastids, cytosol, Golgi complex, and plant-type vacuole. FUM1 is linked to traits including nitrate uptake, leaf composition, seedling growth, and organ identity. Phenotypes associated with this gene include photosynthetic acclimation to high and low temperature, cold acclimation, fumarate accumulation, biomass production, nitrogen utilization, and fumarate/malate ratio. Related genes in other species link the family to photosynthetic acclimation to cold, organic acid metabolism, and organ size.