Removal of prometryn from hydroponic media using marsh pennywort (Hydrocotyle vulgaris L.)
Removal of prometryn from hydroponic media using marsh pennywort (Hydrocotyle vulgaris L.)
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倪健，孙淑霞，郑勇，等。
DOI：
10.1080/15226514.2018.1448359
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发表时间：
2018-06
影响因子：
3.7
通讯作者：
Yongmei Li
中科院分区：
文献类型：
--
作者：
Jie Ni;Shixian Sun;Yi Zheng;Rupali Datta;Dibyendu Sark;Yongmei Li
对水生植物 Hydrocotyle vulgaris 去除营养液中扑草净的功效进行了评价。在优化的实验条件下，H. vulgaris在30天内从水培培养基中去除了高达94.0%的初始扑草净。扑草净浓度从初始水平0.55±0.013 mg/L下降至实验结束时的0.036±0.001 mg/L。去除动力学遵循一级动力学方程(Ct D 0.4569e-0.09t)。扑草净的半衰期 (t1/2) 从 27.16 天（无植物）大大缩短至 5.58 天（有 H. vulgaris）。在 H. vulgaris 组织中发现了大约 22% 的初始扑草净残留，而 11.7% 在 30 天内被植物降解。 30天后检测到扑草净的代谢物为2,4-二氨基-1,3,5-三嗪（水培培养基中）和2,4,6-三羟基-1,3,5-三嗪（植物组织中）。结果表明，H.vulgaris 可用于植物提取扑草净，并可能有效去除受污染水生生态系统中的其他 s-trazine 农药。
The aquatic plant Hydrocotyle vulgaris was evaluated for its efficacy in removing prometryn from nutrient solution. Under optimized experimental conditions, up to 94.0% of the initial prometryn was removed from the hydroponic culture medium by H. vulgaris in 30 days. The concentration of prometryn decreased from the initial level of 0.55 ± 0.013 mg/L to 0.036 ± 0.001 mg/L at the end of the experimental period.The removal kinetics followed first-order kinetic equation (Ct D 0.4569e-0.09t). Half-life (t1/2) of prometryn was greatly shortened from 27.16 days (without plant) to 5.58 days (with H. vulgaris). Approximately 22% of the initial prometryn residue was found in H. vulgaris tissue, while 11.7% was degraded by the plant in30 days. The metabolites of prometryn detected were 2,4-diamino-1,3,5-triazine (in the hydroponic culture medium) and 2,4,6-trihydroxy-1,3,5-triazine (in plant tissue) after 30 days. The results indicate that H.vulgaris can be used for phytoextraction of prometryn and could potentially be effective in removing other s-trazine pesticides from contaminated aquatic ecosystems.
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DOI：
10.1007/s00128-016-1737-3
发表时间：
2016-01
影响因子：
2.7
作者：
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作者：
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通讯作者：
Qu Jian-hong
影响因子：
9.8
作者：
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通讯作者：
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