Understanding how ozone impacts plant water-use efficiency

Cernusak, Lucas A., Farha, Nahid, and Cheesman, Alexander W. (2021) Understanding how ozone impacts plant water-use efficiency. Tree Physiology, 41 (12). pp. 2229-2233.

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Abstract

This scientific commentary refers to ‘Combining carbon and oxygen isotopic signatures to identify ozone-induced declines in tree water-use efficiency’ by Li et al. (doi: 10.1093/treephys/tpab041).

Ozone (O3) in the troposphere is an important air pollutant that causes adverse effects on plants and ecosystems worldwide (Ainsworth et al. 2012, Grulke and Heath 2020). Tropospheric O3 occurs in the atmosphere naturally through the photochemical reactions of O3 precursors: nitrogen oxides (NOx), volatile organic compounds (VOCs), methane (CH4) and carbon monoxide (CO). The abundance of these O3 precursors can be elevated due to anthropogenic activities, for example chemical emissions from vehicles, industrial processes and biomass burning (Ainsworth et al. 2020). On average, the surface [O3] has more than doubled since 1850 due to rapid global industrialization and urbanization (Monks et al. 2015, Ainsworth 2017). This increased [O3] has contributed to a direct radiative forcing of +0.40 W m−2 on the climate, making O3 the third most significant anthropogenic greenhouse gas following CO2 and CH4 (Ainsworth et al. 2020).

Item ID: 72828
Item Type: Article (Commentary)
ISSN: 1758-4469
Copyright Information: © The Author(s) 2021. Published by Oxford University Press. All rights reserved.
Date Deposited: 30 May 2022 23:40
FoR Codes: 31 BIOLOGICAL SCIENCES > 3108 Plant biology > 310806 Plant physiology @ 100%
SEO Codes: 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280102 Expanding knowledge in the biological sciences @ 100%
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