Southern Modern Forestry Cooperation and Innovation Center, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037, PR China; Sun Yat-sen Mausoleum Administration Bureau, Nanjing, Jiangsu Province, 210014, PR China.
Southern Modern Forestry Cooperation and Innovation Center, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037, PR China; College of Landscape Architecture, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037, PR China.
Environ Pollut. 2020 Oct;265(Pt B):115003. doi: 10.1016/j.envpol.2020.115003. Epub 2020 Jun 11.
An indoor formaldehyde enriched environment was created by an automatic fumigation system with timing and concentration control. Selected hydroponic plant species were exposed in formaldehyde concentrations of 10 mg m, 50 mg m and 100 mg m respectively for 6 days with 10-h-treatment each day. Changes in morphological characteristics including leaf damage rate, leaf damage time and survival rate were monitored to evaluate morphological resistance to formaldehyde. Assessed physiological parameters were leaf chlorophyll content (Chl), leaf malondialdehyde content (MDA), activity of leaf formaldehyde dehydrogenase (FADH), leaf water soluble sugar content (WSS), and leaf proline content (Pro). Under formaldehyde suppression, reduction of Chl and increase of MDA and Pro were observed. Varying by species, FADH and WSS peaked at certain formaldehyde concentrations. A Principal Component Analysis (PCA) method was adopted to evaluate key factors in hydroponic plants' tolerance to formaldehyde. Among the 15 species selected, the best 5 performing species are Spathiphyllum floribundum, Alocasia cucullata, Davallia bullata, Syngonium podophyllum 'Pixie', and Schefflera octophylla. The study helps people to select the best ornamental plants for indoor air pollution control. The response of hydroponic plant species to formaldehyde was studied for eco-friendly indoor air pollution control.
采用定时浓度控制的自动熏蒸系统创建室内富甲醛环境。将选定的水培植物品种分别暴露在 10mg/m、50mg/m 和 100mg/m 的甲醛浓度下，每天处理 10 小时，持续 6 天。监测形态特征的变化，包括叶片损伤率、叶片损伤时间和存活率，以评估对甲醛的形态抗性。评估的生理参数包括叶片叶绿素含量（Chl）、叶片丙二醛含量（MDA）、叶片甲醛脱氢酶活性（FADH）、叶片水溶性糖含量（WSS）和叶片脯氨酸含量（Pro）。在甲醛抑制下，Chl 减少，MDA 和 Pro 增加。根据物种的不同，FADH 和 WSS 在一定的甲醛浓度下达到峰值。采用主成分分析（PCA）方法评估水培植物对甲醛耐受性的关键因素。在所选择的 15 个物种中，表现最好的 5 个物种是白鹤芋、海芋、虎尾兰、心叶藤和鹅掌柴。该研究有助于人们选择用于室内空气污染控制的最佳观赏植物。研究了水培植物对甲醛的反应，以实现环保的室内空气污染控制。
