Emission of herbivore-induced volatile terpenoids from two hybrid aspen (Populus tremula x tremuloides) clones under ambient and elevated ozone concentrations in the field
Emission of herbivore-induced volatile terpenoids from two hybrid aspen (Populus tremula x tremuloides) clones under ambient and elevated ozone concentrations in the field
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DOI：
10.1111/j.1365-2486.2007.01453.x
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发表时间：
2007-12-01
影响因子：
11.6
通讯作者：
Holopainen, Jarmo K.
中科院分区：
文献类型：
--
作者：
Blande, James D.;Tiiva, Paivi;Holopainen, Jarmo K.
进入世纪，由于人类活动的影响，对流层臭氧水平持续上升。虽然臭氧对植物的植物毒性影响已经有了很好的记录，但臭氧对植物排放的影响却很少受到关注。利用两个杂交白杨无性系进行了田间调查。XP. tremuloides Michx.）在自由空气臭氧浓度富集（FACE）设施中。慢性暴露于适度增加浓度的臭氧昆虫引起的萜烯排放量的影响，这些树木进行了调查。我们使用了两种草食动物，Phyllobius piri和Epirrita autumnata，这两种动物都可以在北方欧洲的落叶树木上达到爆发水平。我们的研究结果表明，由于臭氧水平的增加，排放量只有很小的变化，但显示了一些萜烯的诱导，特别是单萜反式-β-罗勒烯和高萜（E）-4，8-二甲基-1，3，7-壬三烯，响应昆虫取食。在这里，我们考虑在该领域进行这种类型的研究的积极方面，并考虑其他领域为基础的环境因素的可能影响。
Tropospheric ozone levels are continuously rising due to human activities in the 21st century. Although the phytotoxic impact of ozone on plants has been well documented, the effect of ozone on plant emissions has received little attention. We have conducted a field-based investigation utilizing two clones of hybrid aspen (Populus tremula L. xP. tremuloides Michx.) in a free-air ozone concentration enrichment (FACE) facility. The effects of chronic exposure to moderately increased concentrations of ozone on insect-induced terpene emissions by these trees were investigated. We used two herbivore species, Phyllobius piri, and Epirrita autumnata, both of which can reach outbreak levels on deciduous trees in Northern Europe. Our results indicated only very small changes in emissions due to increased ozone levels, but showed induction of some terpenes, particularly the monoterpene trans-beta-ocimene and the homoterpene (E)-4,8-dimethyl-1,3,7-nonatriene, in response to insect feeding. Here, we consider the positive aspects of conducting this type of study in the field and consider the possible influences of other field-based environmental factors.