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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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        國家自然科學基金面上項目(31471633)


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

          為研究化學誘抗劑對采后機械損傷山藥愈傷效果及抗病性的影響,采用1 mmol/L β-氨基丁酸(BABA)結合NaHCO3復合處理人工損傷山藥,在35℃下(RH 85%)愈傷7 d。通過測定愈傷期間損失率、腐爛程度、木質素、酚類物質和超氧化物含量來評價愈傷效果。結果顯示,人工機械損傷山藥經1 mmol/L BABA結合NaHCO3 復合處理后,山藥的腐爛程度明顯降低,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。由此表明,BABA結合NaHCO3復合處理能有效抑制山藥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 order to study the effect of chemical inducers on the curing development and disease resistance of mechanical damaged yam,the mixture of 1 mmol/L BABA and NaHCO3 was used to treat artificially damaged yam. The callus was cultured at 35℃ for 7 days (RH 85%). The weight loss rate,decay degree,lignin,phenols and superoxide during the callus period were measured to evaluate the effect of curing treatment. The results showed that the combined treatment of BABA and NaHCO3 significantly reduced the decay degree of damaged yam,promoted the accumulation of lignin and phenolic substances in the wounded site,and significantly increased the content of superoxide. The results showed that the combination of BABA and NaHCO3 could effectively inhibit the infection of pathogens and promote the rapid formation of wound periderm of yam.

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        劉燦,彭麗桃,楊書珍.β-氨基丁酸結合碳酸氫鈉對采后損傷山藥愈傷的影響[J].華中農業大學學報,2020,39(5):130-135

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        • 收稿日期:2020-04-20
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        • 在線發布日期: 2020-10-05
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