摘要
以黄花补血草为试材,研究NaCl、NaHCO3胁迫对黄花补血草叶绿素(Chl)、丙二醛(MDA)、脯氨酸(Pro)、超氧化物歧化(SOD)、过氧化氢酶(CAT)和过氧化物酶(POD)的影响。结果表明:叶绿素含量随2种盐浓度增加呈先升高再降低的趋势;丙二醛(MDA)含量对NaCl处理的影响不明显,而在NaHCO3处理下,MDA含量持续增加;脯氨酸(Pro)含量随2种盐浓度增加而持续增加:抗氧化酶系统中的SOD、POD、CAT的活性持续提高。研究认为黄花补血草抗NaCl胁迫能力强于NaHCO3。
A hydroponical culture experiment of Limonium aureum was conducted to explore responses of the plants to NaCl and NaHCO3 stress for 12 days in chlorophyll content, MDA content, Pro content, SOD activity, CAT activity and POD activity. The results indicated that chlorophyll content raised, and then decreased with increasing NaCl or NaHCO3 concentration. Compared with CK, MDA content had unsignificant changeunder NaCl stress, and its content increased rapidly under NaHCO3 stress. Pro content its content increased rapidly. SOD activity, CAT activity and POD activity raised. The salt tolerance of NaHCO3 might be higher than that of NaCl.
出处
《北方园艺》
CAS
北大核心
2010年第5期11-14,共4页
Northern Horticulture
基金
宁夏回族自治区自然基金资助项目(NZ08163)
宁夏科技基础平台建设资助项目
