School of Life Sciences, Central China Normal University, No. 152, Luoyu Avenue, HongShan District, Wuhan 430079, China.
The College of Urban & Environmental Sciences, Central China Normal University, No. 152, Luoyu Avenue, HongShan District, Wuhan 430079, China.
Int J Environ Res Public Health. 2021 Jan 19;18(2):810. doi: 10.3390/ijerph18020810.
Bisphenol A (BPA) is a typical endocrine disruptor that causes problems in waters all around the world. In this study, the effects of submerged macrophytes ( and ) cultured in vitro on the removal of BPA at two initial concentrations (0.5 mg L vs. 5.0 mg L) from Donghu lake water were investigated, using different biomass densities (2 g L vs. 10 g L) under different nutrient conditions (1.85 mg L and 0.039 mg L vs. 8.04 mg L and 0.175 mg L of the total nitrogen and phosphorus concentration, respectively), together with the effect of indigenous microorganisms in the water. The results showed that indigenous microorganisms had limited capacity for BPA removal, especially at higher BPA initial concentration when its removal rate amounted to about 12% in 12 days. Addition with plant seedlings (5 cm in length) greatly enhanced the BPA removal, which reached 100% and over 50% at low and high BPA initial concentration in 3 days, respectively. Higher biomass density greatly favored the process, resulting in 100% of BPA removal at high BPA initial concentration in 3 days. However, increases in nutrient availability had little effect on the BPA removal by plants. BPA at 10.0 mg L significantly inhibited the growth of . Therefore, may be a candidate for phytoremediation due to greater efficiency for BPA removal and tolerance to BPA pollution. Overall, seedlings of submerged macrophytes from in vitro culture showed great potential for use in phytoremediation of BPA in natural waters, especially .
双酚 A（BPA）是一种典型的内分泌干扰物，它会对世界各地的水域造成问题。在这项研究中，研究了在不同营养条件下（总氮磷浓度分别为 1.85 毫克/升和 0.039 毫克/升，以及 8.04 毫克/升和 0.175 毫克/升），用不同的生物量密度（2 克/升和 10 克/升），通过体外培养的沉水植物（ 和 ）对东湖水中两种初始浓度（0.5 毫克/升和 5.0 毫克/升）的 BPA 去除的影响，以及水中土著微生物的影响。结果表明，土著微生物对 BPA 的去除能力有限，特别是在较高的 BPA 初始浓度下，在 12 天内其去除率约为 12%。添加植物幼苗（长 5 厘米）大大增强了 BPA 的去除，在低浓度和高浓度 BPA 初始浓度下，分别在 3 天内达到 100%和 50%以上。较高的生物量密度大大有利于该过程，在 3 天内高浓度 BPA 初始浓度下达到 100%的 BPA 去除率。然而，增加营养物质的可用性对植物去除 BPA 的影响很小。BPA 浓度为 10.0 毫克/升显著抑制了 的生长。因此， 可能是由于其对 BPA 去除效率更高和对 BPA 污染的耐受性而成为植物修复的候选物。总体而言，来自体外培养的沉水植物的幼苗在天然水中的 BPA 植物修复方面具有很大的潜力，尤其是 。
