中文摘要：

以废弃离体香蕉叶片为材料，研究其吸收和代谢液体甲醛（HCHO）的能力。结果表明：香蕉叶片能有效地吸收液体HCHO，对低浓度（2mmol·L-1）HCHO的吸收速率较高浓度（6mmol·L-1）快。磁共振（13C—NMR）分析发现H13CHO在离体香蕉叶片可以通过3种途径转化为无毒[U-13C]葡萄糖、[U-13C]-果糖、[3-13C]-丝氨酸和[5-13C]-柠檬酸，同时还产生少量的[2，4-13C]-柠檬酸和[2，3-13C]-丙氨酸。

英文摘要：

In this study, the ability of detached banana leaves to absorb and metabolize aqueous formaldehyde （HCHO） was investigated. The results showed that banana leaves could effectively absorb the aqueous HCHO, but the uptake rate for the low concentration （2 mmol · L-1 ） of HCHO was greater than that for the high concentration （6 mmol · L -1） of HCHO. 13C-NMR analysis indicated that H13 CHO in banana leaves could be converted into non--toxic compounds include [U-13 C]-glucose, [U-13 C]-fructose, [3-13 C]-serine and [5-13 C]-citrate through three putative metabolic pathways, with the production of a small amount of [2, 4-13 C]-citrate and [-2, 3-13 C]-alanine. The results demonstrated that application of discarded banana leaves could effectively remove liquid formaldehyde pollution and could provide a reference for exploring HCHO metabolism in other higher plants.