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G195R mutation disrupts AtSWEET1 structure and impairs sugar uptake in Arabidopsis.

Biochemical and biophysical research communications - 8 Jan 2026

Tan Shuya, Zhang Murao, Cao Jie, Li Zhonghai

Abstract excerpt

Nutrient availability, particularly the carbon (C) to nitrogen (N) ratio, is crucial for regulating plant metabolism, though coordination mechanisms remain unclear. To identify regulators, we screened an Arabidopsis thaliana mutant library under high C/N conditions, where wild-type cotyledons turn reddish-purple due to anthocyanin accumulation. We isolated a mutant that retained green cotyledons, indicating a...

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PMID: 41351898
DOI: 10.1016/j.bbrc.2025.153096

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