Ozone exposure and stomatal sluggishness in different plant physiognomic classes

Paoletti, Elena; Grulke, Nancy

doi:10.1016/j.envpol.2010.04.024

Cited by 154 publications

(108 citation statements)

References 31 publications

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“…3). Similar findings were reported in previous studies (e.g., Paoletti, 2005;Mills et al, 2009;Paoletti and Grulke, 2010;Hoshika et al, 2012a). Maier-Maercker (1989) suggested that such slower stomatal response might be explained by delignification of the guard cell and subsidiary cells as recorded in ozonated Picea abies.…”

Section: Discussionsupporting

confidence: 89%

“…Ozone has been reported to induce stomatal closure (Wittig et al, 2007). However, slower or less efficient stomatal control may occur, especially a weaker ability to close stomata, referred to as "O 3 -induced stomatal sluggishness" (Paoletti, 2005;Mills et al, 2009;Paoletti et al, 2009;Paoletti and Grulke, 2010;Hoshika et al, 2012aHoshika et al, , 2013aDumont et al, 2013). Sluggishness may occur because O 3 reduces stomatal sensitivity to abscisic acid (ABA) (Mills et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Determinants of stomatal sluggishness in ozone-exposed deciduous tree species

Hoshika

Carriero

Zhu

et al. 2014

Science of The Total Environment

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• Our knowledge of ozone (O 3 ) effects on dynamic stomatal response is still limited.• Determinants of O 3 -induced stomatal sluggishness were examined in deciduous tree species in open-top chambers.• Ozone exposure slowed closing of stomata after leaf cutting.• Stomatal sluggishness was well explained by stomatal O 3 flux per net photosynthesis.• Stomatal sluggishness depended both on ozone flux and on the capacity for detoxification or repair. a b s t r a c t a r t i c l e i n f o Our knowledge of ozone effects on dynamic stomatal response is still limited, especially in Asian tree species. We thus examined ozone effects on steady-state leaf gas exchange and stomatal dynamics in three common tree species of China (Ailanthus altissima, Fraxinus chinensis and Platanus orientalis). Seedlings were grown and were exposed to three levels of ozone in open-top chambers (42, 69, 100 nmol mol −1 daylight average, from 09:00 to 18:00). At steady-state, ozone exposure induced an uncoupling of photosynthesis and stomatal conductance, as the former decreased while the latter did not. Dynamic stomatal response was investigated by cutting the leaf petiole after a steady-state stomatal conductance was reached. Ozone exposure increased stomatal sluggishness, i.e., slowed stomatal response after leaf cutting, in the following order of sensitivity, F. chinensis N A. altissima N P. orientalis. A restriction of stomatal ozone flux reduced the ozone-induced sluggishness in P. orientalis. The ozone-induced impairment of stomatal control was better explained by stomatal ozone flux per net photosynthesis rather than by stomatal ozone flux only. This suggests that ozone injury to stomatal control depends both on the amount of ozone entering a leaf and on the capacity for biochemical detoxification or repair. Leaf mass per area and the density of stomata did not affect stomatal sluggishness.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Determinants of stomatal sluggishness in ozone-exposed deciduous tree species

Hoshika

Carriero

Zhu

et al. 2014

Science of The Total Environment

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“…A variety of detrimental changes at the biochemical, physiological and molecular levels have been demonstrated in conifers and deciduous trees (Koch et al, 1998;Kopper and Lindroth, 2003;Richet et al, 2011Richet et al, , 2012Zhang et al, 2014a). Experimental evidence indicates that not only species but also cultivars, genotypes and clones, show different sensitivity to O 3 (Calatayud et al, 2011;Castagna et al, 2015;Dumont et al, 2014;H€ aiki€ o, 2009;Paoletti and Grulke, 2010;Zhang et al, 2012Zhang et al, , 2014c.…”

Section: Introductionmentioning

confidence: 99%

Concentration- and flux-based ozone dose–response relationships for five poplar clones grown in North China

Dearn

Gao

Yue

et al. 2015

Environmental Pollution

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a b s t r a c tConcentration-and flux-based O 3 doseeresponse relationships were developed for poplars in China. Stomatal conductance (g s ) of five poplar clones was measured to parameterize a Jarvis-type multiplicative g s model. The maximum g s and other model parameters varied between clones. The strongest relationship between stomatal O 3 flux and total biomass was obtained when phytotoxic ozone dose (POD) was integrated using an uptake rate threshold of 7 nmol m À2 s À1 . The R 2 value was similar between flux-based and concentration-based doseeresponse relationships. Ozone concentrations above 28 e36 nmol mol À1 contributed to reducing the biomass production of poplar. Critical levels of AOT 40 (accumulated O 3 exposure over 40 nmol mol À1 ) and POD 7 in relation to 5% reduction in total biomass for poplar were 12 mmol mol À1 h and 3.8 mmol m À2 , respectively.

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“…Despite the often reported decline in stomatal conductance at elevated O3, 25 stimulation of stomatal opening (Mills et al, 2009) and the induction of stomatal sluggishness 26 (Paoletti and Grulke, 2010) have also been observed (discussed later). On the other hand, elevated 27 CO2 reduces stomatal conductance (Curtis and Wang, 1998;Drake et al, 1997;Kim et al, 2010;28 Morgan, 2003) and therefore the uptake of O3 and its damaging impacts on plants (Fiscus et al, 29 1997;Harmens et al, 2007;McKee et al, 1997).…”

mentioning

confidence: 99%

Ozone impacts on vegetation in a nitrogen enriched and changing climate

Mills

Harmens

Wagg

et al. 2016

Environmental Pollution

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Mark; Davies, Bill. 2016. Ozone impacts on vegetation in a nitrogen enriched and changing climate.Contact CEH NORA team at noraceh@ceh.ac.ukThe NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. This paper provides a process-oriented perspective on the combined effects of ozone (O3)  The beneficial effect of N on root development is lost at higher O3 treatments 28  The effects of O3 on root biomass are higher at high than low N. Ozone impacts on vegetation in a nitrogen enriched and changing climate

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Ozone exposure and stomatal sluggishness in different plant physiognomic classes

Cited by 154 publications

References 31 publications

Determinants of stomatal sluggishness in ozone-exposed deciduous tree species

Determinants of stomatal sluggishness in ozone-exposed deciduous tree species

Concentration- and flux-based ozone dose–response relationships for five poplar clones grown in North China

Ozone impacts on vegetation in a nitrogen enriched and changing climate

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