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Pseudomonas marginalis 的适应性反应对改变了大气的包装条件

Muhammad Asim¹, Huihui Xu¹, Yanyin Guo¹

¹College of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255049, People's Republic of China.

International journal of food microbiology

|November 26, 2025

概括

修改大气包装 (MAP) 允许Pseudomonas marginalis通过改变细菌应激和代谢途径来适应并引起番茄软腐烂. 快速转移到受控大气层可以减轻这些收获后损失.

科学领域:

食品微生物学食品微生物学
植物病理学植物病理学
微生物生理学微生物生理学

背景情况:

收获后的细菌感染显著影响水果和蔬菜的质量和安全.
病原体适应储存条件加剧了腐败.
马格里纳斯虫 (Pseudomonas marginalis) 导致番茄软腐烂,这是收获后的一个主要问题.

研究的目的:

在修改大气包装 (MAP) 条件下调查Pseudomonas marginalis的生存和软腐烂进展.
通过多omics方法阐明P. marginalis对MAP的适应性反应.
为了确定由MAP气体调节的关键细菌通路.

主要方法:

使用了形态分析和多组学 (转录组学和代谢组学).
在不同的大气条件下评估了细菌的生长和活力.
用RT-qPCR,转录组学和代谢组学分析了基因表达和代谢物概况.

主要成果:

MAP支持P. marginalis与空气相似的生长,而快速转移到受控大气抑制了生长,导致了膜破坏.
MAP增强了细菌的适应性反应,保持了适度的生存能力.
MAP调节了细菌的两组分系统 (TCS) 和ATP结合盒 (ABC) 输送通路,改变了铁的稳态,并影响了氨基酸和糖的新陈代谢.

结论:

通过调节关键的压力和代谢途径,MAP促进了P. marginalis的适应和软腐烂的发展.
快速转移到微空气控制大气或活跃的氧气清理可以减轻P. marginalis诱导的收获后损失.
这些发现为优化MAP策略的基础,以控制产品中的细菌腐烂.

关键词:

这是一张ATP结合卡塞特.适应能力适应能力分子信号传递是分子信号传递.压力基因压力基因番茄的软腐烂是因为番茄软腐烂.两个组成部分的系统系统.

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