生态学杂志2012，Vol.31Issue(5)：1123-1128,6.
NaCl胁迫对结荚期菜用大豆叶片游离态多胺水平的影响
Effects of NaCl stress on free polyamine level in vegetable-use soybean leaves at podding stage
摘要
Abstract
Taking two vegetable-use soybean [ Glycine max ( L. ) Merr. ] ] cultivars with different salt tolerance as test materials, a vermiculite culture experiment was conducted to study their dry matter accumulation, fresh pod yield per plant, and leaf free polyamine level at podding stage under the stress of 100 mmol NaCl · L-1. For the two cultivars, their dry mass and fresh pod yield per plant were decreased significantly under the NaCl stress, and the decrements for salt-resistant cultivar " Liilingtezao" were lower than those for salt-susceptible cultivar " Lixianggaochan 95-1". As compared with "Lixianggaochan 95-1" , "Lillingtezao" had relatively lower leaf H2O2 and free putrescine ( Put) contents and relatively higher leaf free spermidine (Spd) content during the period of NaCl stress, and maintained relatively higher leaf free spermine (Spin) content and (Spd+Spm)/Put ratio and relatively lower leaf Put/PAs ratio in the 6-15 days of the NaCl stress. All the results suggested that "Liilingtezao" leaves possessed stronger capability for the transformation of free Put to free Spd and free Spm, and maintained lower free Put content but higher free Spd and free Spm contents, which effectively inhibited the excessive accumulation of reactive oxygen.关键词
NaCl胁迫/结荚期/菜用大豆/游离态多胺Key words
NaCl stress/ podding stage/ vegetable-use soybean/ free polyamine.分类
农业科技引用本文复制引用
王聪,杨恒山,董永义,贾俊英..NaCl胁迫对结荚期菜用大豆叶片游离态多胺水平的影响[J].生态学杂志,2012,31(5):1123-1128,6.基金项目
"十一五"国家高技术研究发展计划重大项目(2006AA10A110)、内蒙古民族大学科研创新团队计划项目(NMD1003)和内蒙古民族大学博士启动基金项目(BS217)资助. （2006AA10A110）
