干旱胁迫对芒生理生化指标的影响  

Preliminary Study on Physiological and Biochemical Changes of Miscanthus sinensis under Drought Stress

作　　者：邹力骏[1,2] 郑炳松[2] 任君霞[2,3] 方佳[2] 何勇清[2] 邱智生 

机构地区：[1]浙江省龙游县林业局,浙江龙游324400 [2]浙江农林大学亚热带森林培育省部共建国家重点实验室培育基地,浙江临安311300 [3]浙江农林大学风景园林与建筑学院,浙江临安311300

出　　处：《浙江林业科技》2012年第3期31-34,共4页Journal of Zhejiang Forestry Science and Technology

基　　金：浙江省科技厅重大科技专项(优先主题)农业项目(2008C12019)

摘　　要：以盆栽芒为材料,进行了持续25 d的干旱胁迫处理,同时以正常浇水为对照,研究了不同程度干旱胁迫对芒叶片的叶绿素含量、相对电导率、丙二醛(MDA)含量、保护酶活性的影响。结果表明,在干旱胁迫处理下,芒叶片的叶绿素含量、相对电导率、MDA呈上升趋势,叶绿素含量在处理过程中增长相对比较平缓,相对电导率、MDA在处理结束时分别增长了0.78和1.12倍;超氧化物歧化酶(SOD)、过氧化物酶(POD)及过氧化氢酶(CAT)呈先上升后下降趋势,SOD、POD增长高峰出现在胁迫处理第15天,CAT增长高峰则出现在第10天。Experiments were conducted on different drought stress within 25 days on physiological and biochemical changes of Miscanthus sinensis with common watering treatment as control The result showed that chlorophyll content, relative conductivity, malondialdehyde （MDA） content and relative conductivity increased significantly with increase of drought stress in leaf of M. sinensis. However, superoxide dismutase （SOD）, peroxidase （POD） and catalase （CAT） activities increased and reached the highest at the 15th days of the treatment, then decreased with increase of drought stress.

关 键 词：芒 干旱胁迫 叶绿素 丙二醛 保护酶 

分 类 号：S718.4[农业科学—林学]