Abstract Heavy metal toxicity is a serious global issue as it threatens the future food security by influencing the growth and development of the plant, thereby declining the production yield. Therefore, the aim of the current study was to explore the crops that possess tolerance to heavy metals and investigate their potential as a novel hyperaccumulators, besides provide future food security. Buckwheat is one of potential crop with high nutritional profile compared to cereals and has quickly gained ground in the functional food sector. In the present study, Pb-induced stress in Tartary buckwheat using various physiological and biochemical attributes were investigated. The Pb accumulation was found to be time and dosage-dependent, besides roots were found to accumulate more Pb concentration (21.34 mg/g DM), that in turn declines root and shoot length; besides translocation factor value of

中文翻译：

---

铅毒性改变抗氧化防御机制并调节苦荞植物的生物标志物

摘要 重金属毒性是一个严重的全球性问题，它通过影响植物的生长发育，从而降低产量，从而威胁到未来的粮食安全。因此，本研究的目的是探索对重金属具有耐受性的作物，并研究它们作为新型超富集植物的潜力，同时提供未来的粮食安全。与谷物相比，荞麦是一种具有高营养成分的潜在作物，并在功能性食品领域迅速取得了进展。在本研究中，使用各种生理和生化属性研究了 Pb 诱导的苦荞麦胁迫。发现 Pb 积累与时间和剂量有关，除了发现根部积累更多的 Pb 浓度（21.34 mg/g DM），这反过来又会降低根和芽的长度；除了易位因子值