Arizona State University, School of Life Sciences, Tempe, AZ 85287, USA.
Environ Pollut. 2012 Nov;170:202-10. doi: 10.1016/j.envpol.2012.06.014. Epub 2012 Jul 24.
This paper addresses the effects of gaseous nitric acid (HNO(3)) and ozone (O(3)), two important air pollutants, on six lichen species with different morphological, ecological, and biological characteristics. The treatment chambers were set up in a factorial design consisting of control chambers, chambers fumigated with HNO(3), with O(3), and with HNO(3) and O(3), together. Each species showed a different sensitivity to the fumigations, reflecting the physiological variation among species. Our results clearly indicate that HNO(3) is a strong phytotoxin to many lichens, and that O(3) alone has little effect on the measured parameters. The combined fumigation effects of HNO(3) and O(3) were not significantly different from HNO(3) alone.
本文研究了气态硝酸（HNO(3)）和臭氧（O(3)）这两种重要的空气污染物对 6 种具有不同形态、生态和生物学特征的地衣物种的影响。处理室采用因子设计，包括对照室、用 HNO(3)、O(3)和 HNO(3)和 O(3)处理的室。每种物种对熏蒸的敏感性都不同，反映了物种间的生理变异。我们的结果清楚地表明，HNO(3)是许多地衣的强植物毒素，而单独的 O(3)对地衣的测量参数几乎没有影响。HNO(3)和 O(3)的联合熏蒸效应与单独的 HNO(3)没有显著差异。
