Jurado-Mañogil Carmen, Barba-Espín Gregorio, Hernández José A, Diaz-Vivancos Pedro
Department of Fruit Breeding, CEBAS-CSIC, Murcia, Spain.
Physiol Plant. 2023 Jul-Aug;175(4):e13971. doi: 10.1111/ppl.13971.
Halophyte-based intercropping appears nowadays as a valuable approach in soil remediation and agriculture. In this work, intercropping between the halophyte Arthrocaulon macrostachyum and tomato (Solanum lycopersicum var. Sargento) was studied in both plant species using comparative mass spectrometry-based metabolomics coupled to metabolic pathway predictions. A significant number of changes in metabolites was observed in the halophyte. In terms of alteration of specific metabolic pathways, intercropping conditions stimulated sugar and starch metabolisms in tomato, whereas in the halophyte, intercropping mainly altered amino acid-related pathways. In addition, arginine and proline metabolism were commonly affected in both tomato and halophyte plants. Moreover, metabolomic changes were associated with physiological alterations in tomato. In this sense, mild oxidative stress was induced in intercropped tomato plants, which, in turn, could trigger signaling events leading to plant adjustment to intercropping conditions. This study represents the first approach toward understanding intercropping interactions at the metabolome level and its effect on plant physiology, opening up prospects for further characterization of this crop cultivation strategy.
如今，基于盐生植物的间作在土壤修复和农业中似乎是一种有价值的方法。在这项研究中，利用基于比较质谱的代谢组学结合代谢途径预测，对盐生植物大穗节茎草与番茄（番茄品种萨金托）之间的间作进行了研究，观察了两种植物中的大量代谢物变化。在盐生植物中观察到大量代谢物变化。就特定代谢途径的改变而言，间作条件刺激了番茄中的糖和淀粉代谢，而在盐生植物中，间作主要改变了与氨基酸相关的途径。此外，精氨酸和脯氨酸代谢在番茄和盐生植物中均受到普遍影响。此外，代谢组学变化与番茄的生理变化相关。从这个意义上说，间作的番茄植株中诱导了轻度氧化应激，这反过来又可能触发信号事件，导致植物适应间作条件。这项研究是在代谢组水平上理解间作相互作用及其对植物生理影响的首次尝试，为进一步表征这种作物种植策略开辟了前景。
