Qualisud, Université de Montpellier, Avignon Université, CIRAD, Institut Agro, IRD, Université de La Réunion, 34093 Montpellier, France.
Laboratoire de Botanique, Phytochimie et Mycologie, CEFE, CNRS-Université de Montpellier-Université Paul-Valéry Montpellier-EPHE-IRD, 34093 Montpellier, France.
Int J Mol Sci. 2023 Aug 15;24(16):12815. doi: 10.3390/ijms241612815.
The release of carbon dioxide (CO) into the atmosphere has accelerated during the last two decades. Elevated atmospheric CO concentration (eCO) is known as an agent that improves plant photosynthesis. However, eCO was also correlated with alterations in the macronutrient and micronutrient compositions of various dietary crops. In order to explore the effect of eCO on the nutritional and health properties of tomatoes, three parental lines of the Magic population, which includes a large part of the genetic diversity present in large fruit varieties, were used as models. The plants were grown in growth chambers under ambient (400 ppm) or eCO (900 ppm) conditions. The macronutrient and micronutrient contents were measured. The anti-oxidant and anti-inflammatory bioactivities were assessed in vitro on activated macrophages. These analyses highlighted that the carbohydrate content was not affected by the eCO, whereas the protein, carotenoid, lycopene, and mineral contents decreased. Regarding the anti-oxidant properties, no influence of eCO exposure was observed. Similarly, the anti-inflammatory properties were not affected by the eCO. These data are in contrast with previous studies conducted on different plant species or accessions, indicating that the effect of eCO on crops' nutrition and health properties is based on complex mechanisms in which growth conditions and genetic backgrounds play a central role.
在过去的二十年中，二氧化碳（CO）向大气中的释放加速了。已知升高的大气 CO 浓度（eCO）是一种可提高植物光合作用的物质。然而，eCO 也与各种食用作物中大量营养素和微量元素组成的改变有关。为了探索 eCO 对番茄营养和健康特性的影响，使用 Magic 群体的三个亲本系作为模型，该群体包括大果品种中存在的大部分遗传多样性。这些植物在生长室中于环境（400ppm）或 eCO（900ppm）条件下生长。测量了大量营养素和微量元素的含量。在激活的巨噬细胞上体外评估了抗氧化和抗炎生物活性。这些分析表明，碳水化合物含量不受 eCO 的影响，而蛋白质、类胡萝卜素、番茄红素和矿物质含量下降。关于抗氧化特性，未观察到 eCO 暴露的影响。同样，eCO 不影响抗炎特性。这些数据与先前在不同植物物种或品系上进行的研究相反，表明 eCO 对作物营养和健康特性的影响基于复杂的机制，其中生长条件和遗传背景起着核心作用。
