Sensitivity of Metasequoia glyptostroboides to ozone stress

Feng, Zhaozhong; Zeng, Hanlai; Wang, X. K.; Zheng, Qiwen; Zhu, Feng

doi:10.1007/s11099-008-0079-8

Cited by 28 publications

(18 citation statements)

References 10 publications

(5 reference statements)

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“…Numerous studies have shown ozone-induced tree damage, including photosynthesis decrease (Feng et al, 2008b;Pina and Moraes, 2010;Wittig et al, 2007;Zhang et al, 2012), chlorophyll degradation (Calatayud et al, 2011;Zhang et al, 2014) and biomass reduction (Gerosa et al, 2015;Hu et al, 2015;Wittig et al, 2009). In this study, ozone had significant effects on A sat , PhiPS2, chlorophyll content and LMA, which were also significantly different at different times and different clones.…”

Section: Discussionmentioning

confidence: 51%

Ozone exposure- and flux-based response relationships with photosynthesis, leaf morphology and biomass in two poplar clones

Shang

Feng

Пин

et al. 2017

Science of The Total Environment

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Section: Discussionmentioning

confidence: 51%

Ozone exposure- and flux-based response relationships with photosynthesis, leaf morphology and biomass in two poplar clones

Shang

Feng

Пин

et al. 2017

Science of The Total Environment

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“…There was no replication of O 3 treatments. In order to eliminate the positional and chamber effects (Potvin and Tardif, 1988), the plant positions were changed every week within each OTC, and all seedlings were switched between chambers every month, according to Feng et al (2008Feng et al ( , 2011.…”

Section: O 3 Treatmentsmentioning

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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• 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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“…Current ambient O 3 levels may cause severe effects on plants, including visible foliar injury or growth reduction, impairment of physiological traits and impacts on resource allocation and reproduction (Paoletti, 2007;Feng et al, 2008;Zhang et al, 2011;Niu et al, 2011;Chen et al, 2008). In recent years, considerable (or increasing) attention has been paid to the below-ground effects of eO 3 (Chen et al, 2009).…”

Section: Introductionmentioning

confidence: 99%