外源NO对NaCl胁迫下黄瓜幼苗生长和根系膜脂过氧化作用的影响

doi:CNKI:SUN:NCST.0.2007-01-013

Abstract

Abstract: An experiment was conducted with cucumbers（Cucumis sativus） of ’Gai Liang Jin Chun No 2’ growing in a nutrient solution culture system and effects of extraneous nitric oxide on growth and active oxygen metabolism were analyzed and studied.Results show that addition of 100 μmol·L^-1 extraneous sodium nitroprusside（SNP）,a nitric oxide donor,significantly alleviated the injury that NaCl stress brought to the plants,increased obviously plant growth,and activity of SOD,POD,CAT and APX,and accelerated accumulation of proline（Pro） in the roots.Meanwhile,extraneous nitric oxide markedly decreased membrane permeability,O^-·₂ producing rate,MDA and H₂O₂ content of the roots.

Key words: nitric oxide, NaCl stress, cucumber seedling, growth, membrane lipid peroxidation of roots

CLC Number:

S642.2

FAN Huai-Fu, GUO Shi-Rong, ZHANG Run-Hua, HAN Zhi-Ping. Effects of Extraneous Nitric Oxide on Plant Growth,and Root Membrane Lipid Peroxidation of Cucumber Seedlings Under NaCl Stress[J]. Journal of Ecology and Rural Environment, 2007, 23(1): 63-67.

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URL: http://www.ere.ac.cn/EN/CNKI:SUN:NCST.0.2007-01-013

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Effects of Extraneous Nitric Oxide on Plant Growth,and Root Membrane Lipid Peroxidation of Cucumber Seedlings Under NaCl Stress

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