Journal of the science of food and agriculture · 2026
Elevated CO2 via capture agent promotes photosynthetic efficiency and reprograms carbon metabolism to enhance oil biosynthesis in Brassica napus.
СтатьяНазвание и аннотация: Перевод в очереди
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Liao Qiong, Wu Zhimin, Wang Juan, Liu Xin, Jiang Yan, Wang Bing, Liu Chunyan, Dong Guoyun, Liu Piao, Luo Yuezhong, Liao Hongguang
Аннотация
BACKGROUND: The effects of elevated atmospheric carbon dioxide (CO2) on plant growth and productivity have received considerable attention. While CO2 capture agents have been generally reported to improve crop yield and quality, the underlying mechanisms remain unclear, particularly in rapeseed (Brassica napus L.).
RESULTS: A field experiment was conducted to investigate the effects of different concentrations of a foliar-applied CO2-capturing agent on the growth, yield, and quality of Brassica napus cv. 'Xiangyou 15'. The results showed that 100× dilution of foliar-applied CO2-capturing agent was optimal, significantly increasing yield, leaf chlorophyll (SPAD), and seed oil content. Further transcriptomic analysis was conducted between the optimal foliar-applied CO2-capturing agent (T3) and control (T1), T3 up-regulated photosynthetic genes including PSAA, PSAB, rbcL and reshaped carbon metabolism, glucose, fructose, and sucrose contents increased by 40.6%, 32.0% and 10.5% respectively. Additionally, T3 significantly up-regulated INV (invertase) and G6PDH (glucose-6-phosphate dehydrogenase), supplying NADPH reducing power and carbon precursors for oil biosynthesis. Consequently, the total fatty acid content significantly increased from 44 059.02 to 62 909.80 μg g-1 under T3 treatment, representing a 42.8% rise.
CONCLUSION: Taken together, this study provided the first integrated physiological and transcriptomic evidence that a CO2 capture agent boosted yield and increased the quality of Brassica napus L., highlighting its potential as an efficient and sustainable approach for crop productivity enhancement. © 2026 Society of Chemical Industry.
RESULTS: A field experiment was conducted to investigate the effects of different concentrations of a foliar-applied CO2-capturing agent on the growth, yield, and quality of Brassica napus cv. 'Xiangyou 15'. The results showed that 100× dilution of foliar-applied CO2-capturing agent was optimal, significantly increasing yield, leaf chlorophyll (SPAD), and seed oil content. Further transcriptomic analysis was conducted between the optimal foliar-applied CO2-capturing agent (T3) and control (T1), T3 up-regulated photosynthetic genes including PSAA, PSAB, rbcL and reshaped carbon metabolism, glucose, fructose, and sucrose contents increased by 40.6%, 32.0% and 10.5% respectively. Additionally, T3 significantly up-regulated INV (invertase) and G6PDH (glucose-6-phosphate dehydrogenase), supplying NADPH reducing power and carbon precursors for oil biosynthesis. Consequently, the total fatty acid content significantly increased from 44 059.02 to 62 909.80 μg g-1 under T3 treatment, representing a 42.8% rise.
CONCLUSION: Taken together, this study provided the first integrated physiological and transcriptomic evidence that a CO2 capture agent boosted yield and increased the quality of Brassica napus L., highlighting its potential as an efficient and sustainable approach for crop productivity enhancement. © 2026 Society of Chemical Industry.