文献类型：期刊文献

中文题名：马尾松毛虫常灾区、偶灾区和无灾区松针挥发物特征

英文题名：Volatile Characters of Masson Pine Needles from Dendrolimus punctatus Frequent Outbreak Area,Occasional Outbreak Area,and Non-Outbreak Area

作者：张苏芳[1] 张真[1] 孔祥波[1] 王鸿斌[1] 蔡道雄[2] 陶怡[2]

第一作者：张苏芳

机构：[1]中国林业科学研究院森林生态环境与保护研究所国家林业局森林保护学重点实验室;[2]中国林业科学研究院热带林业实验中心

年份：2015

卷号：51

期号：3

起止页码：170-174

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金青年基金项目(31200492);中国林业科学研究院森林生态环境与保护研究所基本科研业务费专项资金项目(CAFRIFEEP201102-5)

语种：中文

中文关键词：挥发物;组分;暴发;β-蒎烯;(+)-3-蒈烯

外文关键词：volatiles; composition; outbreak; β-pinene; （＋）-3-carene

分类号：S763.421

摘要：【目的】马尾松毛虫是我国发生最为严重的针叶林食叶害虫,呈现周期性暴发。不同暴发区松林生理特征影响松毛虫暴发过程的机制还不清楚。植物挥发物参与了许多重要的生理、生态过程,通过揭示不同松毛虫发生区域马尾松挥发物的释放特性,以及不同地区的松针挥发物含量与松毛虫暴发情况的相关性,可为更加精确地利用植物挥发物进行松毛虫趋避或者天敌引诱提供可靠的依据。【方法】在广西凭祥大青山地区选取3个典型的松毛虫暴发类型区即无灾区、偶灾区和常灾区,鉴定并比较3个林场松针挥发物的组分及含量。【结果】马尾松针叶挥发物主要包括S-α-蒎烯、R-α-蒎烯、月桂烯、R-β-蒎烯、S-β-蒎烯、(+)-3-蒈烯、α-萜品烯、(+)-柠檬烯、(-)-柠檬烯、γ-萜品烯。常灾区、偶灾区和无灾区的松针挥发物组成比例差异很大。这些挥发物可以分为4类:第1类包括R-α-蒎烯和月桂烯,与马尾松毛虫的暴发频率呈负相关(P<0.05);第2类包括S-β-蒎烯、γ-萜品烯和(+)-3-蒈烯,与马尾松毛虫的暴发频率呈正相关(P<0.01);第3类包括R-β-蒎烯和(+)-柠檬烯,它们在3种松毛虫暴发区域的松针挥发物中呈现显著但不规则变化(P<0.05),最后一类包括S-α-蒎烯,(-)-柠檬烯和α-萜品烯,它们在3种松毛虫暴发区域的松针挥发物中无明显变化。【结论】松针挥发物的组成比例可能影响松毛虫的暴发情况。另外,天敌是控制松毛虫的重要因子,因此松针挥发物对马尾松毛虫天敌的作用程度也可影响害虫的暴发;无灾区或者偶灾区的针叶挥发物可能吸引更多的松毛虫天敌,从而对松毛虫的暴发起一定的控制作用。
【Objective 】Dendrolimus punctatus is the most serious pest of coniferous forest in China,and it mainly damages Masson pine（ Pinus massoniana）,a dominant and local native tree species that is widely distributed in south China. It was found that the outbreak of D. punctatus is regular,and according to different outbreak frequencies of D.punctatus,the Masson pine forest were differentiate into non-outbreak area,occasional outbreak area,and frequent outbreak area. However,the function of physiological characters of Masson pine from different area during D. punctatus outbreak was unclear. Plant volatiles are important byproduct of trees and can mediate many important ecological processes. 【Method】To test the needle volatile emission characters of Masson pine at different area,and explore the correlations between needle volatile emission and D. punctatus out break frequency,we selected three classical D.punctatus outbreak area,non-outbreak area in Baiyun tree farm,occasional outbreak area in Qing Shan tree farm,and frequent outbreak area in Shaoping tree farm,to identify and compare the composition of their needle volatiles. All these tree farms are located at Pingxiang City,Guangxi Province,China. 【Resuts】Our results indicated that the volatiles of Masson pine needles are mainly composed of S- α- pinene,R- α- pinene,myrcene,R- β- Pinene,S- β- pinene,（ ＋）- 3- carene,α- terpinene,（ ＋）- limonene,（-）- limonene,γ- terpinene. However,the component ratio of these volatiles from non-outbreak area in Bai Yun tree farm,occasional outbreak area in Qing Shan tree farm,and frequent outbreak area in Shao Ping tree farm are significantly different. According to the emission characters,these volatiles are distinguished into four types. The first type includes R- α- pinene and myrcene,whose emission quantities are negatively correlated to the outbreak frequencies of D. punctatus; the second type includes S- β- pinene,γ- terpinene,and（ ＋）- 3- carene,and reverse to the first type,the emission quantities of these volatiles are positively correlated to the outbreak frequencies of D. punctatus; the third type includes R- β- Pinene and（ ＋）- limonene,whose emission quantities are significantly different among different areas,but not correlated to the outbreak frequencies of D. punctatus;the last type,including S- α- pinene,（-）- limonene,and α- terpinene didn＇t show significant differences among different areas. 【Conclution】Combining our results with previous researches about behavior response of D. punctatus to different pine needles volatiles,we deduced that the compositions of pine needle volatile chemicals may influence the outbreak of D. punctatus. Furthermore,natural enemies are important controlling factors of Dendrolimus,the attractive effect of pine needle volatiles may be different among different areas,we mean that the volatile mixtures from non-outbreak area in Bai Yun tree farm and occasional outbreak area in Qingshan tree farm may attract more natural enemies of D.punctatus,and then influence the outbreak of D. punctatus. These results provided solid bases for further usages of plant volatiles to repel D. punctatus or attract their natural enemies.