植物研究 ›› 2026, Vol. 46 ›› Issue (5): 866-879.doi: 10.7525/j.issn.1673-5102.2026.05.008
收稿日期:2026-05-07
出版日期:2026-09-20
发布日期:2026-10-09
通讯作者:
田亚琴
E-mail:tianyaqin19920902@126.com
作者简介:范文广(1982—),男,教授,主要从事农产品加工及贮藏、生物保鲜生物基膜材料研究。
基金资助:
Wenguang FAN, Hengyu XIAN, Peng BAI, Bolu SUN, Haiwei REN, Yaqin TIAN(
)
Received:2026-05-07
Online:2026-09-20
Published:2026-10-09
Contact:
Yaqin TIAN
E-mail:tianyaqin19920902@126.com
摘要:
探究高浓度CO2处理抑制兰州百合(Lilium davidii var. unicolor)鳞茎紫红色形成的生理作用及分子机制,明确其对花色苷积累及相关代谢通路的调控作用。以兰州百合鳞茎为材料,采用15% CO2+10% O2+75% N2气调处理,在贮藏0、3、6、9 d测量鳞茎外观色泽参数、花色苷含量,以及可溶性蛋白等代谢物含量和氧化酶活性;通过转录组测序,结合GO和KEGG富集分析筛选差异表达基因,并采用qRT-PCR对关键基因表达结果进行验证。结果表明:高浓度CO2显著延缓了兰州百合鳞茎在贮藏期间的紫红色加深,维持较高的明度(L*),同时明显抑制其花色苷的积累。生理层面上,CO2处理降低了多酚氧化酶(PPO)、过氧化物酶(POD)等活性,表明该处理同时抑制了酶促褐变和花色苷生物合成。转录组结果显示,差异表达基因主要富集于苯丙烷生物合成和类黄酮生物合成通路;其中多数与花色苷合成相关的关键结构基因在CO2处理下下调表达。综上,高浓度CO2可通过抑制苯丙烷与类黄酮生物合成途径基因表达,抑制花色苷积累,进而延缓兰州百合鳞茎紫红色形成,改善采后贮藏品质。本研究为兰州百合的气调保鲜技术研发提供了理论依据。
中图分类号:
范文广, 仙恒宇, 白鹏, 孙伯禄, 任海伟, 田亚琴. 高浓度CO2处理抑制兰州百合鳞茎花色苷积累[J]. 植物研究, 2026, 46(5): 866-879.
Wenguang FAN, Hengyu XIAN, Peng BAI, Bolu SUN, Haiwei REN, Yaqin TIAN. High-concentration CO2 Treatment Inhibits the Accumulation of Anthocyanins in the Bulbs of Lilium davidii var. unicolor[J]. Bulletin of Botanical Research, 2026, 46(5): 866-879.
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