| 摘要: |
| 为了从子实体水平探究重金属铅在基质-食用菌系统的迁移规律, 研究利用大球盖菇 Strophara rugoso-annulata 开展外源铅添加试验, 对其基质总铅含量 (Pbtotal) 和有效态铅含量 (Pbavail), 以及子
实体铅含量 (Pb) 进行检测分析。 结果表明: (1) 基质 Pbavail 与 Pbtotal 之间具有良好的线性关系, 随着
Pbtotal 增加, Pbavail 增加, Pbavail 在 Pbtotal 的占比也增加; (2) 大球盖菇子实体的铅含量随基质 Pbtotal 和
Pbavail 的增加, 呈现先增大后减小的趋势; (3) 铅从基质向大球盖菇子实体转移的迁移系数 TF (TFtotal 和
TFavail) 随基质 Pbtotal 及 Pbavail 的增加, 先增大后减小。 研究揭示了在不同铅浓度条件下, 重金属铅从基质
向大球盖菇子实体迁移的变化规律, 也表明基质的总铅含量及有效态铅含量可作为管控食用菌产品质量
安全的有效指标。 |
| 关键词: 大球盖菇 有效态铅 迁移系数 重金属污染 |
| DOI： |
| 分类号: |
| 基金项目:广东省林业局科研监测项目 (2023KJQT001) |
|
| Transfer Characteristics of Lead from Substrate-to-fungi System at Fruiting Body Level of Stropharia rugoso-annulata |
|
Chen Yingle, Liu Lubing, Wang Zhihong, Yang Liu, Wang song, Zeng Lei
|
|
Guangdong Academy of Forestry
|
| Abstract: |
| This study aims to investigate the transfer law of lead from the substrate-to-fungi system at the
fruiting body level. An exogenous lead gradient addition test was carried out in Stropharia rugoso-annulata,
and the total lead content (Pbtotal) and available lead content (Pbavail) in the substrate, and the lead content in
the fruiting body were detected. The results indicated that there was a significant positive correlation between total lead concentration and available lead concentration in substrate. With the increase of Pbtotal
and Pbavail
in the
substrate, the lead content in the fruiting body raised first and then fell. The transfer coefficient of lead (TFtotal
and TFavail) from the substrate-to-fungi system showed a trend of increasing first and then decreasing, with the
increase of Pbtotal
and Pbavail
in the substrate. This study revealed the transfer law of lead from the substrate-tofungi system at the fruiting body level of S. rugoso -annulata under different lead concentrations. The total
amount and the available content of heavy metals may be effective indexes to the quality and safety of edible fungi. |
| Key words: Stropharia rugoso-annulata available lead transfer coefficient heavy metal pollution |
