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Mirror image hydrocarbons from Tropical and Boreal forests

机译:镜像热带和北方森林的碳氢化合物

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Monoterpenes, emitted in large quantities by trees to attract pollinatorsand repel herbivores, can exist in mirror image forms called enantiomers. Inthis study such enantiomeric pairs have been measured in ambient air overextensive forest ecosystems in South America and northern Europe. For thedominant monoterpene, α-pinene, the (−)-form was measured in largeexcess over the (+)-form over the Tropical rainforest, whereas the reversewas observed over the Boreal forest. Interestingly, over the Tropical forest(−)-α-pinene did not correlate with its own enantiomer, butcorrelated well with isoprene. The results indicate a remarkable ecosystemscale enantiomeric fingerprint and a nexus between the biosphere andatmosphere.
机译:树木为吸引传粉媒介并排斥草食动物而大量释放的单萜可以镜像形式存在,称为对映异构体。在这项研究中,已在南美和北欧的环境空气过度扩张的森林生态系统中测量了此类对映体对。对于主要的单萜,α-pine烯,在热带雨林中以(-)形式大量测量(-)形式,而在北方森林中则以相反的方式测量。有趣的是,在热带森林中,(-)-α-did烯与其自身的对映异构体不相关,但与异戊二烯相关性很好。结果表明,生态系统规模的对映异构体指纹显着,并且在生物圈和大气层之间具有联系。

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