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      2. β-氨基丁酸結合碳酸氫鈉對采后損傷山藥愈傷的影響
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        華中農業大學食品科學技術學院

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        國家自然科學基金項目(面上項目,重點項目,重大項目)


        Effect of β-aminobutyric acid combined with sodium bicarbonate on Callus of yam
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          摘要:

          采用1mmol/L BABA結合NaHCO3復合處理人工造傷山藥,在35℃下愈傷7d。通過測定愈傷期間失重率、病斑直徑、木質素、酚類物質和超氧化物的含量來衡量愈傷效果。結果表明,機械損傷山藥經1mmol/L BABA結合NaHCO3 復合處理后,明顯降低山藥的腐爛程度,能快速促進傷口部位木質素和酚類物質的積累,大幅提升超氧化物含量水平,表明該復合處理能有效抑制愈傷期間病原菌侵染,促進損傷山藥愈傷結構快速形成。

          Abstract:

          In this experiment,artificially wounded yam tuber were cuerd with 1 mmol / L BABA with 1 mmol / L NaHCO3 at 35℃ for 7days. The occurrence and accumulation of lignin and suberin polyphenolics, the weight loss and lession diameter, phenolic metabolism and active oxygen metabolism related indexes at the cut sites of yam tuber, were measured to evaluate the effects of treatments .The results demonstrated treated by 1 mmol / L BABA with NaHCO3 could effectively reduce the decay of wounded yam tuber with lignin and suberin polyphenolics accumulation at the wounding sites through activation of the ROS and phenolic metabolism levels. It was suggested that the treatment can inhibit the infection of pathogens effectively during curing time,and advance the callus process in wound site.

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        • 收稿日期:2020-04-20
        • 最后修改日期:2020-07-13
        • 錄用日期:2020-07-15
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