番茄中的类胡卜素生产触发了代谢重编程和细胞适应:寻求恒常的追求

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Marilise Nogueira¹, Eugenia M A Enfissi¹, Elliott J Price¹

¹School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK.

Plant biotechnology journal

|November 30, 2023

概括

番茄植物通过重塑细胞膜和核心代谢途径来适应合成非原生类胡卜素. 这种代谢重编程确保了细胞平衡,并突出了代谢物在植物细胞可塑性中的作用.

科学领域:

植物生物学植物生物学
代谢工程是代谢工程.
生物化学生物化学

背景情况:

植物表现出显著的可塑性,适应环境和细胞内信号.
类胡卜素是具有抗氧化特性的宝贵红色素,但它们在非本地宿主中的生物合成存在挑战.
了解植物细胞对异质代谢物生产的反应对于代谢工程至关重要.

研究的目的:

为了研究系统级的细胞和新陈代谢适应在番茄植物工程为类胡卜素生物合成.
阐明植物应对非内源代谢产物的机制.
探索新陈代谢重编程在维持细胞平衡中的作用.

主要方法:

系统层面的分析是在为异种类素生产而改造的番茄植物上进行的.
研究了塑膜结构和功能的变化.
分析了核心代谢途径的招募和活动.
评估了氧化还原控制机制和代谢物调节作用.

主要成果:

异种类型的类糖生物合成在番茄中引发了显著的多层次细胞变化.
关键的调整包括重塑塑膜以进行合成和储存.
核心代谢途径被招募用于前体生成和能源供应,以及氧化还原控制调整.
代谢物被确定为细胞过程的调节者,支持修订后的"中央教条"概念.

结论:

番茄植物表现出强大的新陈代谢重编程,以适应异质类胡卜素生产.
这些适应涉及膜结构,核心新陈代谢和氧化还原平衡的协调变化.
在合成非原生化合物期间,新陈代谢重编程对于维持细胞平衡至关重要.

关键词:

代谢重编程是一种代谢重编程.茄子番茄子番茄子细胞适应细胞适应恒常状态 (homeostasis) 是一种平衡状态.基托胡卜素化物基托胡卜素化物氧化还原控制是指氧化还原控制.

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