热带亚热带植物学报
熱帶亞熱帶植物學報
열대아열대식물학보
JOURNAL OF TROPICAL AND SUBTROPICAL BOTANY
2013年
6期
521-528
,共8页
王伟%徐建民%李光友%韩超%吴世军%陆钊华
王偉%徐建民%李光友%韓超%吳世軍%陸釗華
왕위%서건민%리광우%한초%오세군%륙쇠화
桉树%桉树枝瘿姬小蜂%类黄酮%单宁%品系
桉樹%桉樹枝癭姬小蜂%類黃酮%單寧%品繫
안수%안수지영희소봉%류황동%단저%품계
Eucalyptus%Leptocybe invasa%Flavonoid%Tannin%Clone
为探讨遭受桉树枝瘿姬小蜂(Leptocybe invasaFisher & La Salle)危害后桉树(Eucalyptussp.)的次生代谢产物的变化,对24个桉树品系受危害前后的次生物质单宁和类黄酮含量的变化进行了研究。结果表明,桉树品系遭受枝瘿姬小蜂危害后,叶片内的类黄酮含量明显上升,高感品系的类黄酮含量明显低于其他抗性类型的品系。受虫害前高抗品系桉树叶片中的单宁含量明显高于高感品系,但进入小蜂危害期,叶片单宁含量出现先下降后升高的趋势。次生物质的动态变化在不同抗性品系间差异显著,表明桉树叶片的单宁和类黄酮含量与抗枝瘿姬小蜂有显著关系,可作为检测桉树对枝瘿姬小蜂抗性的指标。
為探討遭受桉樹枝癭姬小蜂(Leptocybe invasaFisher & La Salle)危害後桉樹(Eucalyptussp.)的次生代謝產物的變化,對24箇桉樹品繫受危害前後的次生物質單寧和類黃酮含量的變化進行瞭研究。結果錶明,桉樹品繫遭受枝癭姬小蜂危害後,葉片內的類黃酮含量明顯上升,高感品繫的類黃酮含量明顯低于其他抗性類型的品繫。受蟲害前高抗品繫桉樹葉片中的單寧含量明顯高于高感品繫,但進入小蜂危害期,葉片單寧含量齣現先下降後升高的趨勢。次生物質的動態變化在不同抗性品繫間差異顯著,錶明桉樹葉片的單寧和類黃酮含量與抗枝癭姬小蜂有顯著關繫,可作為檢測桉樹對枝癭姬小蜂抗性的指標。
위탐토조수안수지영희소봉(Leptocybe invasaFisher & La Salle)위해후안수(Eucalyptussp.)적차생대사산물적변화,대24개안수품계수위해전후적차생물질단저화류황동함량적변화진행료연구。결과표명,안수품계조수지영희소봉위해후,협편내적류황동함량명현상승,고감품계적류황동함량명현저우기타항성류형적품계。수충해전고항품계안수협편중적단저함량명현고우고감품계,단진입소봉위해기,협편단저함량출현선하강후승고적추세。차생물질적동태변화재불동항성품계간차이현저,표명안수협편적단저화류황동함량여항지영희소봉유현저관계,가작위검측안수대지영희소봉항성적지표。
In order to understand the changes in secondary metabolite of Eucalyptus demaged by Leptocybe invasa, the contents of flavonoid and tannin in 24 strains of Eucalyptus invasived by L. invasa were studied. The results showed that flavonoid content in Eucalyptus leaves increased significantly after damaged by L. invasa, and the flavonoid content in high sensitive strains was significantly lower than that in other strains. The tannin content in high-resistant strains was significantly higher than that in high-sensitive strains before damaged by L. invasa. The tannin content in high-resistant strains declined at first, and then increased after infected by L. invasa. Therefore, tannin and flavonoid contents in Eucalyptus leaves could be used as indexes to detect whether Eucalyptus damaged by Leptocybe invasa or not.