蚕豆叶片气孔对甲醛污染的反应研究

目的]探讨植物气孔对甲醛污染的响应机制,筛选对甲醛降解能力强的室内绿化植物,利用植物对甲醛污染进行监测。方法]采用密闭反应仓法研究蚕豆叶片气孔对不同浓度甲醛污染处理的响应。结果]2种蚕豆幼苗叶片气孔的长度和宽度均随甲醛浓度的增加和处理时间的延长而变小。松滋青皮蚕豆品种的叶片经甲醛污染处理24 h后,虽然气孔的面积比对照减小,但差异未达显著水平(P>0.05),但是随着处理时间的延长,2种蚕豆的气孔面积与对照相比均达显著差异水平(P<0.05)。结论]普通蚕豆叶片气孔对甲醛污染的反应比松滋青皮蚕豆叶片气孔的反应更敏感。

Study on Vicia faba Stomata Reaction to Indoor Formaldehyde Pollution

Objective] The research aimed to study the response mechanism of plant stomata to formaldehyde pollution,to screen the indoor greenisation with high degrading efficiency to formaldehyde and to monitor formaldehyde pollution with plant.Method] Airtight reaction chamber method was used to investigate the effects of formaldehyde pollution on Vicia faba stomata reaction.Result] The length and width of two varieties of Vicia faba stomata were reduced with the increase of formaldehyde concentrations.No differences were discovered after 24 hours in Songzi green Vicia faba,though the stomata area was a little smaller than those of control(P>0.05).However,after 48 hours,the stomata areas on Songzi green Vicia faba and common Vicia faba leaves were significantly smaller than those of control(P<0.05).Conclusion] Common Vicia faba stomata was more sensitive to formaldehyde than that of Songzi green Vicia faba.