黑松感染线虫后树干中萜类成分的变化  

STUDY ON THE TERPENOIDS IN PINUS THUNBERGJI PARL.INFECTED WITH BURSAPHELENCHUS XYLOPHILUS

作　　者：徐刚[1] 粟子安[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所

出　　处：《林产化学与工业》1994年第3期40-54,共15页Chemistry and Industry of Forest Products

摘　　要：研究了黑松感染线虫后，树干中萜类成分的变化，分初期、中期、末期三个阶段进行考察。感染线虫后，树干乙醚抽出物的含量增加；树脂酸成分中，机酸的含量增加而长叶松酸与左旋海松酸的含量降低。机酸与左旋海松酸／长叶松酸含量的差值可作为判断感病与否的指标：正为感病，负为未感病。此法在中后期可靠性较高。同时亦发现感染线虫后长叶烯的相对含量降低，一些芳基化合物的含量增加。此外，在感病的中、后期乙醚抽出物的酸性明显增加，酸碱指示剂可作为检测感病与否的一种辅助手段。Terpenoids in Pinus thunhergii Parl.stems infected with Bursaphelenchus xylophilus and thosein normal trees were studied and compared.The content of ether extractives in infected trees was higherthan that in normal trees. In normal tree stems,the abietic acid content is always less than that of levopi-maric acid(including palustric acid).After the tree is infected,the content of abietic acid is increasing andthat of levopimaric acid(including palustic acid) decreasing. The content of abietic acid is higher than thatof levopimaric acid after 60 days infection,This variation can be used as criterion for determining whetherthe tree has been infected.The relative content of longifolene decreases and the content of some aromaticcompounds increases after the tree is infected.The acidity of ether extractives increases after infection. Bro-mophenol blue can be used as an auxillary means for identifying infected trees.

关 键 词：松材线虫 萜类化合物 树脂酸 黑松 

分 类 号：TQ351.014[化学工程]