中国麻业科学2013，Vol.35Issue(2)：57-62,6.
干旱胁迫对杂交苎麻脯氨酸积累、膜脂过氧化及抗氧化酶活性的影响
Effects of Drought Stress on Proline Accumalation,Lipid Peroxidation, and Antioxidative Defence System in Hybrid Ramie [Boehmeria Nivea (L.) Gaud.]
摘要
Abstract
"Chuanzhu 11 ",a hybrid ramie,was grown in pots subjected to 4 different treatments (well-watered,mild,moderate and severe drought stress) for 10,15 and 20 days in a greenhouse.Then the contents of proline and malonialdehyde(MDA),superoxide dismustase (SOD) activity,peroxide dismustase (POD) activity and catalase (CAT) activity were assessed.The results showed that drought stress led to a prominent increase in the contents of proline and MDA,the activities of SOD and POD.The severer and longer the drought stress was,the more these components increased.The CAT activity was enhanced under progressive drought stress while it initially increased,subsequently changed in an opposite direction under long term drought stress.Compared with the well-watered plants,the contents of proline and M DA increased by 23.61％-84.10％ and 9.49％-34.93％,while the activities of SOD,POD and CAT increased by 7.51％-34.53％,10.61％-61.85％ and 8.31％-41.60％,respectively.In summary,drought stress led to the physiological and biochemical responses in hybrid ramie,subsequently reduced fiber yield.关键词
苎麻/干旱胁迫/脯氨酸/丙二醛/抗氧化酶Key words
ramie / drought stress/ proline/ MDA/ antioxidase分类
农业科技引用本文复制引用
黄承建,赵思毅,王龙昌,苟云,李亚玲,李萍,唐朝霞..干旱胁迫对杂交苎麻脯氨酸积累、膜脂过氧化及抗氧化酶活性的影响[J].中国麻业科学,2013,35(2):57-62,6.基金项目
国家自然科学基金(30871474) （30871474）
