This study was designed to highlight the impact of calcium chloride (CaCl₂) seed priming on faba bean nodulation and root nodule oleosomes under cadmium stress. In the un-primed plants, high Cd exposure (50 μM) led to a decrease in nodule number and dry weight by 63% and 76% respectively as compared to control. Furthermore, metal supply resulted in a decrease (by 46%) in lipid content and the level of saturated fatty acids of oleosomes. However, CaCl₂ seed priming improved nodule number by 23% and 20% and dry weight by 34% and 7% at 0 and 50 μM Cd respectively, compared to the control. Moreover, results showed that CaCl₂ alleviated adverse effects of Cd on oleosome lipid content and fatty acid composition. Overall, CaCl₂ seed priming was effective to alleviate the detrimental effects of Cd on some physiological and biochemical characteristics of faba bean root-nodule.

这项研究旨在强调镉胁迫下氯化钙（CaCl ₂）种子引发对蚕豆根瘤和根瘤油质体的影响。与对照相比，在未上底漆的植物中，高Cd暴露（50μM）导致根瘤数和干重分别减少63％和76％。此外，金属供应导致脂质含量和油质体饱和脂肪酸水平降低（降低了46％）。然而，与对照相比，在0和50μMCd下，CaCl ₂种子引发分别使根瘤数提高了23％和20％，干重分别提高了34％和7％。此外，结果表明，CaCl ₂减轻了Cd对油质脂质含量和脂肪酸组成的不利影响。总体而言，CaCl ₂ 种子引发可有效减轻镉对蚕豆根瘤某些生理生化特性的不利影响。