24-epibrassinolide protects against the stress generated by salinity and nickel in Brassica juncea
24-epibrassinolide protects against the stress generated by salinity and nickel in Brassica juncea
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DOI：
10.1016/j.chemosphere.2008.04.012
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发表时间：
2008-07-01
期刊：
影响因子：
8.8
通讯作者：
Ahmad, A.
中科院分区：
文献类型：
--
作者：
Ali, B.;Hayat, S.;Ahmad, A.
芥菜(L)植物在NaCl和/或NiCl 2 存在下生长，并在播种后15天(DAS)喷洒1μM 24-表油菜素内酯(EBL)，并在30 DAS取样。暴露于 NaCl 和/或 NiCl2 的植物表现出生长、色素水平和光合参数显着下降。然而，后续的 EBL 处理消除了 NaCl 和/或 NiCl2 产生的应力，并显着改善了上述参数。 NaCl和/或NiCl2增加电解质渗漏和脂质过氧化，并降低膜稳定性指数(MSI)和相对水含量。然而，在没有应激的情况下，EBL 处理改善了 MSI 和相对水含量，但不能影响电解质渗漏和脂质过氧化。抗氧化酶和脯氨酸水平在 EBL 以及 NaCl 和/或 NiCl2 胁迫下表现出显着增加。 (C) 2008 Elsevier Ltd. 保留所有权利。
The plants of Brassica juncea (L) were grown in the presence of NaCl and/or NiCl2 and were sprayed with 1 mu M of 24-epibrassinolide (EBL) at 15 days after sowing (DAS) and were sampled at 30 DAS. The plants exposed to NaCl and/or NiCl2 exhibited a significant decline in growth, the level of pigments and photosynthetic parameters. However, the follow up treatment with EBL detoxified the stress generated by NaCl and/or NiCl2 and significantly improved the above parameters. The NaCl and/or NiCl2 increased electrolyte leakage and lipid peroxidation, and decreased the membrane stability index (MSI) and relative water content. However, the EBL treatment in absence of the stress improved the MSI and relative water content but could not influence electrolyte leakage and lipid peroxidation. The antioxidative enzymes and the level of proline exhibited a significant increase in response to EBL as well as to NaCl and/or NiCl2 stress. (C) 2008 Elsevier Ltd. All rights reserved.