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College of Food Science, Shanxi Normal University, Taiyuan 030031, China
崔美林,赵燚涛,张秀红等.脱落酸介导胞内Ca2+参与调控灵芝三萜积累[J].浙江大学学报(英文版)(B辑:生物医学和生物技术),2023,24(12):1174-1179.
Meilin CUI, Yitao ZHAO, Xiuhong ZHANG, et al. Abscisic acid-mediated cytosolic Ca2+ modulates triterpenoid accumulation of
崔美林,赵燚涛,张秀红等.脱落酸介导胞内Ca2+参与调控灵芝三萜积累[J].浙江大学学报(英文版)(B辑:生物医学和生物技术),2023,24(12):1174-1179. DOI: 10.1631/jzus.B2300279.
Meilin CUI, Yitao ZHAO, Xiuhong ZHANG, et al. Abscisic acid-mediated cytosolic Ca2+ modulates triterpenoid accumulation of
灵芝是中医药宝库中的珍品,具有重要的药理学功能。作为灵芝最主要的活性物质之一,灵芝三萜含量是评价灵芝质量的重要指标。本研究旨在探讨脱落酸(ABA)介导胞内钙离子(Ca,2+,)对灵芝三萜积累的影响。研究发现,ABA (300 μmol/L)可有效促进灵芝三萜积累,其合成途径中关键酶基因(,sqs,、,hmgr,、,ls,)表达水平随之发生变化;同时,ABA诱导可激活胞内Ca,2+,通道并提高Ca,2+,浓度。在ABA介导下,外源Ca,2+,供体和抑制剂可直接影响胞内Ca,2+,浓度及Ca,2+,信号相关基因的表达。此外,ABA介导的Ca,2+,在灵芝三萜的生物合成中起着关键的调节作用,并伴随抗氧化防御调节,包括超氧化物歧化酶(SOD)和抗坏血酸过氧化物酶(APX)活性、超氧阴离子自由基(O,2,·-,)清除能力、谷胱甘肽(GSH)含量的提高。
灵芝三萜脱落酸钙离子(Ca2+)信号抗氧化能力
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