The strawberry fruit is perishable due to its high water content and soft texture, yet exhibits pleasant organoleptic and nutritional profile. Here we conducted a metabolomics-driven analysis followed by linear modelling to dissect the molecular processes in strawberry postharvest. Fruits from five cultivars were harvested and refrigerated during a ten-day period under three different atmospheres: ambient, CO2-enriched and O3-enriched. These analyses revealed that metabolites involved in, (i) organoleptic and nutritional properties; (ii) stress tolerance displayed duration and postharvest treatment-dependent levels. Ozone-enriched atmosphere appears to counteract postharvest negative effects, with fruits exhibiting lower levels of fermentative metabolites when compared to fruits kept in an ambient atmosphere. Furthermore, metabolic reconfiguration towards the synthesis of protective metabolites of those fruits can possibly confer enhanced tolerance to postharvest abiotic stresses. Finally, results from the linear modelling identified metabolites which could be used as biomarkers to assess strawberry quality during its postharvest shelf life.

中文翻译：

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响应采后实践，草莓生理代谢重新配置。

草莓果实由于水分含量高，质地柔软而易腐烂，但仍具有令人愉悦的感官和营养特性。在这里，我们进行了代谢组学驱动的分析，然后进行线性建模以剖析草莓采后的分子过程。在三个环境中（环境，CO2富集和O3富集）在十天的时间内收获并冷藏了五个品种的果实。这些分析表明，代谢产物与（i）感官和营养特性有关；（ii）压力耐受性显示持续时间和收获后治疗依赖性水平。富含臭氧的气氛似乎可以抵消收获后的负面影响，与保持在环境大气中的水果相比，水果显示出较低的发酵代谢产物水平。此外，对那些水果的保护性代谢产物进行合成的代谢重组可能会增强对采后非生物胁迫的耐受性。最后，线性建模的结果确定了代谢产物，这些代谢产物可以用作评估草莓收获后货架期质量的生物标记。