CAJ | 학술논문

为研究日本楤木（Arlia elata var．inermis）对重金属Cd2＋的抗性机理，采用盆栽试验法，在气候室条件下研究不同质量分数Cd2＋处理对日本楤木叶片叶绿素、可溶性蛋白、可溶性糖、Vc等品质指标和抗氧化酶活性的影响。研究表明：当Cd2＋质量分数达到5 mg· kg-1时，叶绿素a质量分数与对照相比显著增加（增加了62．9％）（P＜0．05）；可溶性蛋白和可溶性糖质量分数随Cd2＋处理质量分数的增加呈现先增加后下降趋势，当质量分数为1、2 mg· kg-1时，与对照相比可溶性蛋白和可溶性糖质量分数显著增加（P＜0．05）；Cd2＋处理对日本楤木Vc质量分数的影响并不显著（P＞0．05），Vc质量分数呈逐渐下降趋势；当Cd2＋质量分数为2 mg· kg-1时，过氧化物酶（POD）和过氧化氢酶（ CAT）活性达到最高值，POD活性与对照相比显著增加。
위연구일본송목（Arlia elata var．inermis）대중금속Cd2＋적항성궤리，채용분재시험법，재기후실조건하연구불동질량분수Cd2＋처리대일본송목협편협록소、가용성단백、가용성당、Vc등품질지표화항양화매활성적영향。연구표명：당Cd2＋질량분수체도5 mg· kg-1시，협록소a질량분수여대조상비현저증가（증가료62．9％）（P＜0．05）；가용성단백화가용성당질량분수수Cd2＋처리질량분수적증가정현선증가후하강추세，당질량분수위1、2 mg· kg-1시，여대조상비가용성단백화가용성당질량분수현저증가（P＜0．05）；Cd2＋처리대일본송목Vc질량분수적영향병불현저（P＞0．05），Vc질량분수정축점하강추세；당Cd2＋질량분수위2 mg· kg-1시，과양화물매（POD）화과양화경매（ CAT）활성체도최고치，POD활성여대조상비현저증가。
An experiment was conducted to study the resistance mechanism of heavy metal Cd2+on Arlia elata var.inermis, pot experiment hlorophyll, soluble protein, soluble sugar and antioxidant enzyme activities in climatic chamber.Chlorophyll a increased by 62.9%when exposed in 5 mg· kg-1(P<0.05).The contents of soluble protein and soluble sugar firstly in-creased, and then decreased with the increasing of Cd2+content, when cultured in the contents of 1 and 2 mg· kg-1 , and the content of soluble protein and sugar increased significantly compared with the CK (P<0.05).The content of vitamin C gradually decreased with the level of Cd2+added in the soil.The activities of peroxidase ( POD) and catalase ( CAT) reached the maximum value of 2 mg· kg-1 , and the activities of POD increased obviously .