Emerging challenges of ozone impacts on asian plants: actions are needed to protect ecosystem health

Zhu, Feng; Agathokleous, Evgenios; Yue, Xu; Oksanen, Elina; Paoletti, Elena; Sase, Hiroyuki; Gandin, Anthony; Koike, Takao; Calatayud, Vicent; Yuan, Xiangyang; Liu, Xuejun; Marco, Alessandra De; Jolivet, Yves; Kontunen-Soppela, Sari; Hoshika, Yasutomo; Saji, Hikaru; Пин, Ли; Li, Zhengzhen; Watanabe, Makoto; Kobayashi, Kazuhiko

doi:10.1080/20964129.2021.1911602

Cited by 44 publications

(8 citation statements)

References 109 publications

(139 reference statements)

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“…Our LMA-based approach bridges this gap through grid-based parameterization, and in addition, our data-model integration specifically emphasizes the broad high risks for fast-growing plants, especially for crops. Among PFTs, crops may endure the largest O3 threats (Davison and Barnes, 1998;Feng et al, 2021;Mukherjee et al, 2021) because they are artificially bred with high photosynthetic capacities (Richards, 2000), stomatal conductance, generally low LMA (Bertin and Gary, 1998;Li et al, 2018;Wang and Shangguan, 2010;Wu et al, 2018) (roughly 30-60 g m -2 ), and cultivated in populated regions with high ambient O3…”

Section: Implication Of Potential Risks For Fast-growing Plantsmentioning

confidence: 99%

Implementation of trait-based ozone plant sensitivity in the Yale Interactive terrestrial Biosphere model v1.0 to assess global vegetation damage

Yue

Sitch

et al. 2022

Preprint

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Abstract. A major limitation in modeling global ozone (O3) vegetation damage has long been the reliance on empirical O3 sensitivity parameters derived from a limited number of species and applied at the level of plant functional types (PFTs), which ignore the large interspecific variations within the same PFT. Here, we present a major advance in large-scale assessments of O3 plant injury by linking the trait leaf mass per area (LMA) and plant O3 sensitivity in a broad and global perspective. Application of the new approach and a global LMA map in a dynamic global vegetation model reasonably represents the observed interspecific responses to O3 with a unified sensitivity parameter for all plant species. Simulations suggest a contemporary global mean reduction of 4.8 % in gross primary productivity by O3, with a range of 1.1 %–12.6 % for varied PFTs. Hotspots with damages > 10 % are found in agricultural areas in the eastern U.S., western Europe, eastern China, and India, accompanied by moderate to high levels of surface O3. Furthermore, we simulate the distribution of plant sensitivity to O3, which is highly linked with the inherent leaf trait trade-off strategies of plants, revealing high risks for fast-growing species with low LMA, such as crops, grasses and deciduous trees.

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Section: Implication Of Potential Risks For Fast-growing Plantsmentioning

confidence: 99%

Implementation of trait-based ozone plant sensitivity in the Yale Interactive terrestrial Biosphere model v1.0 to assess global vegetation damage

Yue

Sitch

et al. 2022

Preprint

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“…Elevated tropospheric O 3 may alter phytochemical profiles via several mechanisms. On one hand, reactive oxygen species (ROS) generated by O 3 can disrupt photosynthesis and inhibit the production of primary and secondary metabolites [ 15 ]. On the other hand, O 3 and ROS can trigger defensive responses and increase the production of antioxidant compounds [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Elevated Ozone Reduces the Quality of Tea Leaves but May Improve the Resistance of Tea Plants

Wang,

Zhang

et al. 2024

Plants

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Tropospheric ozone (O3) pollution can affect plant nutritional quality and secondary metabolites by altering plant biochemistry and physiology, which may lead to unpredictable effects on crop quality and resistance to pests and diseases. Here, we investigated the effects of O3 (ambient air, Am; ambient air +80 ppb of O3, EO3) on the quality compounds and chemical defenses of a widely cultivated tea variety in China (Camellia sinensis cv. ‘Baiye 1 Hao’) using open-top chamber (OTC). We found that elevated O3 increased the ratio of total polyphenols to free amino acids while decreasing the value of the catechin quality index, indicating a reduction in leaf quality for green tea. Specifically, elevated O3 reduced concentrations of amino acids and caffeine but shows no impact on the concentrations of total polyphenols in tea leaves. Within individual catechins, elevated O3 increased the concentrations of ester catechins but not non-ester catechins, resulting in a slight increase in total catechins. Moreover, elevated O3 increased the emission of biogenic volatile organic compounds involved in plant defense against herbivores and parasites, including green leaf volatiles, aromatics, and terpenes. Additionally, concentrations of main chemical defenses, represented as condensed tannins and lignin, in tea leaves also increased in response to elevated O3. In conclusion, our results suggest that elevated ground-level O3 may reduce the quality of tea leaves but could potentially enhance the resistance of tea plants to biotic stresses.

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“…Most significantly, the average O 3 concentration background in the Yangtze River Delta region ranged between 60 and 70 ppb in 8 h (9:00-17:00) per day (Feng et al, 2020;Shao et al, 2016Shao et al, , 2020. The increasing O 3 concentration has altered crop growing conditions and has piqued the interest of many researchers around the world (Ashmore, 2005;Feng et al, 2021Feng et al, , 2022Tausz et al, 2007;Yang et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Impacts of ozone stress on stem lodging characteristics of different indica and japonica rice cultivars

Shao

Zhang

et al. 2023

Crop Science

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Ozone (O 3 ) stress inhibits rice growth and development, resulting in yield loss and poor quality. However, the effect of ozone stress on the lodging resistance of rice stems has scarcely been reported. In this study, three indica rice cultivars and three modern japonica rice cultivars were treated with high O 3 concentration (100 ppb) while a gas fumigation platform was used in the indoor control (about 10 ppb). The influence of O 3 stress on lodging resistance was investigated in 2016 and 2017. Ozone stress reduced the in situ pushing resistance of intact plants by 40% and single stems by 32.0%. The breaking resistance of the third, fourth, and fifth internodes from the top of the rice stem was, respectively, reduced by 24.0%, 25.1%, and 33.6%, on average. The O 3 -induced reduction in the basal internode morphological characteristics was associated with the reduced cross-sectional area, maximum and minimum stem diameter, dry weight per unit length, length, dry weight, and culm wall thickness. Among these characteristics, the largest reduction was exhibited by internode dry weight (−43.1%), while the lowest reduction was observed for culm wall thickness (−9.7%). The O 3 induced a significantly higher reduction in basal internode characteristics of indica compared with the japonica rice, with a larger effect in the lower internode than the upper internode, indicating a significant interaction between O 3 and rice cultivar and internode position. Statistical analysis revealed a significant positive linear correlation between the response of in situ pushing resistance of rice under O 3 stress and the response of basal internode breaking resistance, cross-sectional area, and dry weight per unit length. Ozone stress significantly reduced the lodging resistance in the rice stem, which is primarily associated with the thinning and poor filling of the basal internodes, and the O 3 impacts varied with cultivars and internode positions, but were similar between the two years. These results provide a scientific reference for the study of lodging resistance regulation of rice under high O 3 concentrations.

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Emerging challenges of ozone impacts on asian plants: actions are needed to protect ecosystem health

Cited by 44 publications

References 109 publications

Implementation of trait-based ozone plant sensitivity in the Yale Interactive terrestrial Biosphere model v1.0 to assess global vegetation damage

Implementation of trait-based ozone plant sensitivity in the Yale Interactive terrestrial Biosphere model v1.0 to assess global vegetation damage

Elevated Ozone Reduces the Quality of Tea Leaves but May Improve the Resistance of Tea Plants

Impacts of ozone stress on stem lodging characteristics of different indica and japonica rice cultivars

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