Huang Xingxiu, Yu Qingzhou, Zhou Mengya, Ma Chongjian, Li Huashou
Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China.
College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
Food Chem X. 2024 Dec 9;25:102079. doi: 10.1016/j.fochx.2024.102079. eCollection 2025 Jan.
Soil contamination with heavy metals poses a significant health risk as these metals can be transferred to humans through agricultural products. This study aimed to identify pumpkin varieties with low cadmium and arsenic accumulation. To this end, we evaluated 25 pumpkin varieties. Results indicated that the accumulated contents of heavy metals in each organ followed the order: root (0.148 mg·kg) > leaf (0.100 mg·kg) > stem (0.076 mg·kg).The transfer coefficients of these 25 pumpkin varieties were greater for leaves than for stems, yet none exceeded 1. Rhizosphere pH is a critical factor influencing the uptake of Cd by pumpkins, with a less significant impact on As uptake. This study provides a foundation for identifying pumpkin varieties with low Cd and As accumulation potential.Additionally, it contributes to the exploration of pumpkin's potential as a phytoremediation resource and its safe production and utilization in heavy metal-contaminated soils.
土壤重金属污染会带来重大健康风险，因为这些金属可通过农产品转移至人体。本研究旨在鉴定镉和砷积累量低的南瓜品种。为此，我们评估了25个南瓜品种。结果表明，各器官中重金属的积累含量顺序为：根（0.148毫克·千克）＞叶（0.100毫克·千克）＞茎（0.076毫克·千克）。这25个南瓜品种的转移系数叶大于茎，但均未超过1。根际pH是影响南瓜对镉吸收的关键因素，对砷吸收的影响较小。本研究为鉴定低镉和低砷积累潜力的南瓜品种奠定了基础。此外，它有助于探索南瓜作为植物修复资源的潜力及其在重金属污染土壤中的安全生产与利用。
