CAJ | 학술논문

以互花米草为实验材料，通过模拟海水河沙培养实验，研究不同浓度镉胁迫对互花米草生理生化的影响。结果表明：随着镉浓度的增大，互花米草叶、根生物量逐渐降低，膜透性、丙二醛、SOD、POD酶活性随着镉浓度的增加而增加，其酶抗性也发挥到最大的程度。随着镉浓度的增加互花米草的光合特性发生较大变化，净光合速率、胞间CO2和气孔导度都下降和减少。
이호화미초위실험재료，통과모의해수하사배양실험，연구불동농도력협박대호화미초생리생화적영향。결과표명：수착력농도적증대，호화미초협、근생물량축점강저，막투성、병이철、SOD、POD매활성수착력농도적증가이증가，기매항성야발휘도최대적정도。수착력농도적증가호화미초적광합특성발생교대변화，정광합속솔、포간CO2화기공도도도하강화감소。
The physiological and biochemical response of Spartina alterniflora seedlings to different concentration of Cd investigated by cultivating the material in the simulated seawater and sand.The results showed that as the concen-tration of Cd increasing,the biomass of S.alterniflora leaves and roots was decreasing,while the membrane permea-bility,malondialdehyde (MDA),the enzymatic activity of SOD and POD tended to reduce,so S.alterniflora could make the best of its self-resistance.With the increase of the concentration of cadmium,photosynthesis characteristic of S.alterniflora changed greatly.The net photosynthetic rate,intercellular CO2 concentration (Ci)and stomatal conductance (Gs)dropped and reduced.