Nature. 1990 Mar 1;344(6261):56-8. doi: 10.1038/344056a0.
OZONE is phytotoxic: it is damaging to cell integrity and photosynthesis(1,2), causing leaf necrosis(3) and reducing crop yield(4). It has been implicated in forest decline(5), perhaps through interactions with stress ethene(6). Here we show that organic hydroperoxides (ROOH), which are products of ozone-alkene reactions(7-9), are present in the leaves of isoprene-emitting plants after exposure to ozone, but are not found in control plants grown in clean air. On the basis of earlier studies(6,7,10), we suggest that this reaction of ozone with biogenic alkenes to produce toxic ROOH could be one of the mechanisms by which damage to plants occurs. This could be particularly important in areas experiencing acidic deposition, where the stability of ROOH will be enhanced. This model may explain in part the die-back of tree species producing reactive alkenes, such as the red spruce, which emits isoprene(11-15) and monoterpenes(16), and the Norway spruce and silver fir, which are both prolific monoterpene emitters(17).
它会破坏细胞完整性和光合作用（1,2），导致叶片坏死（3）和作物减产（4）。它可能与胁迫乙烯（6）相互作用而导致森林衰退（5）。在这里，我们表明，有机过氧化物（ROOH）是臭氧-烯烃反应（7-9）的产物，在暴露于臭氧后的异戊二烯排放植物的叶片中存在，但在在清洁空气中生长的对照植物中未发现。根据早期的研究（6,7,10），我们认为臭氧与生物源烯烃反应生成有毒 ROOH 的这种反应可能是植物受到伤害的机制之一。在经历酸性沉降的地区，这种反应尤其重要，因为 ROOH 的稳定性将会增强。该模型可以部分解释产生反应性烯烃的树种（如红枞，它会排放异戊二烯（11-15）和单萜烯（16））和挪威云杉和银枞（17），这些树种都是高产单萜烯排放者）的衰退。
