摘要
为了解巨桉Eucalyptus grandis的枯落物内含物对其他物种的化感作用,试验以正己烷作溶剂,用超声波浸提巨桉枯落物,采用GC-MS联用技术,鉴定了巨桉枯落物中所含的有机化学成分。结果表明:巨桉枯落物中含有烷烃、烯烃、芳香烃、醇、醛、酮、酚和酯等8类35种化合物。证明巨桉枯落物中存在化感物质,主要为烷烃、芳香烃和酯类物质。这些化感物质可能对植物种子萌发、幼苗生长有重要的影响。
Eucalyptus grandis is the most widely cultivated eucalyptus. The undergrowths of E. grandis forest are few. To identify the components of litterfall from E. grandis that could affect other species, organic compounds of litterfall from E. grandis were ultrasonically extracted with hexane and identified with a gas chromatograph-mass spectrometer （GC-MS）. Results showed that extracts of litterfall from E. grandis contained 35 components within 8 different categories, including alkanes, alkenes, arenes, alcohols, aldehydes, ketones, hydroxybenzenes, and esters with the main allelochemicals being alkanes, arenes, and esters. These results could have important implications on seed germination and seedling growth and could be used as a reference for research of allelopathic influences on plants in the E. grandis understory. [ Ch, 1 tab. 13 ref. ]
出处
《浙江林学院学报》
CSCD
北大核心
2008年第2期191-194,共4页
Journal of Zhejiang Forestry College
基金
四川省教育厅资助项目(SZD0419)
关键词
植物学
巨桉
枯落物
浸提
气相色谱-质谱法
化感物质
batany
Eucalyptus grandis
litterfall
water extract
GC-MS
allelopathic substances
