摘要
为了探讨核桃根系分泌物的化感作用,利用乙酸乙酯提取核桃活体收集到的根系分泌物并通过气相色谱和质谱联用技术(GC-MS)进行分离鉴定,研究根系分泌物对萝卜种子发芽、胚芽和胚根伸长的影响。结果表明:根系分泌物酸性、中碱性组分对萝卜种子发芽、胚芽和胚根伸长都有抑制作用;核桃根系分泌物酸性组分包括烷烃、烯烃、酸、酯、醇、酚、酮、胺、醌、苯等;中性组分包括烷烃、烯烃、酸、酯、醇、酚、萜、胺、萘、醌、苯等;碱性组分包括烷烃、烯烃、酸、醇、酚、胺、醌、酮、苯等。
Our objective is to investigate the allelopathic effects of walnut（Juglans regia） root exudates. The root exudates of walnut trees were extracted with ethyl acetate and were identified by using the gas chromatography-mass spectrometry （GC-MS）. The impact of the exudates investigated on the seed germination and seedling growth of turnip （Brassica rapa）. The results indicated that the neutral, acidic, and alkaline components of the root exudates all inhibited the seed germination and seedling growth of turnip. The acidic component mainly included alkanes, alkenes, acidic, aromatic esters, alcohols, phenol, ketones, amines, quinones, and benzene. The neutral component mainly included alkanes, alkenes, acidic, aromatic esters, alcohols, phenols, terpenes, amines, naphthalene, quinones, and benzene. The alkaline component mainly included alkanes, alkenes, acidic, alcohols, phenols, amines, quinones, ketones, and benzene. This study provids important knowledge for improving and revealing the mechanisms of allelopathy effects of walnut trees.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2013年第2期54-60,共7页
Scientia Silvae Sinicae
基金
国家"十二五"科技支撑计划"高效可持续农林复合系统构建及调控技术研究"(2011BAD38B0202)
潍坊工程职业学院博士专项基金项目
