Lu Yan, Lei Jia-Qiang, Zeng Fan-Jiang, Xu Li-Shuai, Liu Guo-Jun, Peng Shou-Lan, Huang Cai-Bian
Ying Yong Sheng Tai Xue Bao. 2014 Mar;25(3):711-7.
A pot experiment was conducted to study the influences of different NaCl concentrations (0, 50, 100, 200, 400 mmol x L(-1)) on the growth, leaf hydrogen peroxide (H2O2), malonaldehyde (MDA) content, superoxide dismutases (SOD), catalases (CAT), peroxidase (POD), ascorbate peroxidase (APX) enzymes activity, water potential, soluble sugar and proline contents of Nitraria roborowskii. The results showed that the growth of N. roborowskii was not affected at lower NaCl concentrations (< or = 50 mmol L(-1)), while the SOD, POD, CAT and APX activities in leaves of N. roborowskii were increased. However, higher NaCl concentrations (> 50 mmol x L(-1)) restrained the growth parameters of crown area, number of branches, dry mass of leaf, branch and lateral root, and remarkably reduced the SOD, POD and CAT activities, soluble sugar and proline contents in leaves of N. roborowskii. H2O2 and MDA contents in leaves were increased and water potential was reduced with increasing NaCl concentrations.
进行了一项盆栽试验,以研究不同NaCl浓度(0、50、100、200、400 mmol·L⁻¹)对罗布麻生长、叶片过氧化氢(H₂O₂)、丙二醛(MDA)含量、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)、抗坏血酸过氧化物酶(APX)活性、水势、可溶性糖和脯氨酸含量的影响。结果表明,在较低NaCl浓度(≤50 mmol·L⁻¹)下,罗布麻的生长未受影响,而其叶片中的SOD、POD、CAT和APX活性增加。然而,较高的NaCl浓度(>50 mmol·L⁻¹)抑制了冠幅、分枝数、叶片、枝条和侧根干质量等生长参数,并显著降低了罗布麻叶片中的SOD、POD和CAT活性、可溶性糖和脯氨酸含量。随着NaCl浓度的增加,叶片中的H₂O₂和MDA含量增加,水势降低。