3种蕨类植物对甲醛的净化能力

Three species of ferns and purification ability of formaldehyde

实验以铁线蕨、鸟巢蕨和肾蕨为材料,采用烟熏法测定了其对甲醛的净化能力以及电导率、丙二醛含量、超氧物歧化酶活性和过氧化物酶活性等生理指标。结果表明,这3种蕨类植物对甲醛吸收能力从大到小是鸟巢蕨>肾蕨>铁线蕨。3种蕨类植物在受到甲醛胁迫后出现不同程度的伤害,其中质膜透性均有上升,铁线蕨上升最大,其次是肾蕨、铁线蕨;丙二醛含量,超氧物歧化酶活性都有所上升;过氧化物酶活性中铁线蕨是逐渐降低,而鸟巢蕨、肾蕨是逐渐上升。通过测定以上4个指标得出鸟巢蕨对甲醛的抗性最大,其次是肾蕨、铁线蕨。

The formaldehyde purification ability of three Pteridophytes, Asplenium nidus, tuber fern, and Adiantum and the electrical conductivity, MAD content, SOD activity, POD activity, and other physiological indicators were measured by fumigation.The results show that the formaldehyde absorption capacity of these three species of ferns ranked from highest to lowest as A.nidus 〉 tuber fern 〉 Adiantum.The three species of Pteridophytes had different degrees of stress damage when subjected to formaldehyde.The plasma membrane permeability increased and Adiantum rose the most, followed by the tuber fern, Adiantum;MAD content, SOD activity increased;the activity of POD of Adiantum is gradually reduced, and A.nidus, tuber fern is rising gradually.Through the determination of the above four indicators resistance A.nidus of formaldehyde is biggest, followed by tuber fern, Adiantum.