CAJ | 학술논문

以泽泻和慈姑叶片为试验材料，研究其在0、-10、-15、-20℃低温胁迫下叶片中可溶性糖(WSC)、游离脯氨酸(Pro)含量、过氧化物酶(POD)、过氧化氢酶(CAT)活性及相对电导率等5个生理生化指标的变化。结果表明，在0℃时2个植物的 POD 和 CAT 活性显著增加，之后随温度的降低而下降，在-20℃无活性。随着温度的降低，叶片相对电导率、可溶性糖和脯氨酸含量均有所增加，但增加幅度不同，综合5项指标分析得出，慈姑的抗寒性强于泽泻。
이택사화자고협편위시험재료，연구기재0、-10、-15、-20℃저온협박하협편중가용성당(WSC)、유리포안산(Pro)함량、과양화물매(POD)、과양화경매(CAT)활성급상대전도솔등5개생리생화지표적변화。결과표명，재0℃시2개식물적 POD 화 CAT 활성현저증가，지후수온도적강저이하강，재-20℃무활성。수착온도적강저，협편상대전도솔、가용성당화포안산함량균유소증가，단증가폭도불동，종합5항지표분석득출，자고적항한성강우택사。
The leaves of two alismataceae plants were used to study the changes of soluble sugar,proline content,peroxidase (POD),catalase activity(CAT)and the relative conductivity under the different low tem-perature stress (0 ℃,-10 ℃,-15 ℃,-20 ℃).The results showed two plants have a significant increase in the activity of POD and CAT at 0 ℃.The activity of POD and CAT decreased with decreasing temperature,and there was no activity of both components at -20 ℃.But,the activity of POD and CAT in S .sagittifolia were higher than that in A.orientale at same temperature.With increasing low temperature stress,the contents of rel-ative conductivity,soluble sugar and proline in leaves were increased,but,the extent of increase was different. Baes on the integrated five indexes,the cold resitance of S .sagittifolia were stronger than A.orientale .