Interactions between ozone and plant cuticles

Kerstiens, Gerhard; Lendzian, Klaus J.

doi:10.1111/j.1469-8137.1989.tb00303.x

Cited by 152 publications

(70 citation statements)

References 26 publications

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“…The non-stomatal O 3 deposition to the exterior leaf surface is negligible because the cuticle is considered to be highly impermeable to O 3 compared to open stomata (Kerstiens and Lendzian, 1989). Therefore, Eq.…”

Section: Stomatal Ozone Fluxmentioning

confidence: 99%

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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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Section: Stomatal Ozone Fluxmentioning

confidence: 99%

“…It is generally accepted that the damage of O 3 to plants is mainly caused by the amount of O 3 entering into the leaf interior through the open stomata (Kerstiens and Lendzian, 1989). Stomatal conductance of plants is one of the crucial mechanisms of O 3 sensitivity (Dumont et al, 2013;Guidi et al, 2001).…”

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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“…The cuticle is virtually impermeable to O $ , so the flux of the pollutant to the leaf interior is predominantly controlled by stomatal aperture (Kersteins & Lendzian, 1989). Once inside the leaf, the aqueous phase of the cell wall (the apoplast) constitutes a near-perfect sink for the pollutant (Laisk et al, 1989).…”

Section: mentioning

confidence: 99%

Impacts of ozone on Plantago major: apoplastic and symplastic antioxidant status

1999

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The aim of this work was to examine the correspondence between apoplastic\symplastic antioxidant status and previously reported plant age-related shifts in the ozone (O $ ) resistance of Plantago major L. Seed-grown plants were fumigated in duplicate controlled environment chambers with charcoal\Purafil2-filtered air (CFA) or CFA plus 70 nmol mol −" O $ for 7 h d −" over a 42 d period. Measurements of stomatal conductance and antioxidants were made after 14, 28 and 42 d fumigation, on leaves at an equivalent stage of development (youngest fully expanded leaf, measured c. 9 d after emergence). Ozone exposure resulted in a similar decline in stomatal conductance across plant ages, indicating that increases in O $ resistance with plant age were mediated through changes in the tolerance of leaf tissue rather than enhanced pollutant exclusion. Leaf apoplastic washing fluid was found to contain ' unspecific ' peroxidase, ascorbate peroxidase, superoxide dismutase and ascorbate, but not glutathione and the enzymes required to facilitate the regeneration of ascorbate from its oxidized forms. A weak induction in the activity of certain symplastic antioxidants was found after 14 d O $ fumigation, despite a lack of visible symptoms of injury, but shifts in symplastic antioxidant enzyme activity were not consistent with previously observed increases in resistance to O $ with plant age. By contrast, changes in ' unspecific ' peroxidase activity and in the small pool of ascorbate in the leaf apoplast were found to accompany age-related shifts in O $ resistance. It is concluded that constituents of the leaf apoplast may constitute a potentially important front line defence against O $ .

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“…Ozone enters the leaf via stomata (Kerstiens & Lendzian, 1989). Since stomata are closed or almost closed at night, it was decided to include only ozone levels during daylight when establishing critical levels for plants (Bull, 1996).…”

Section: mentioning

confidence: 99%

Response of subterranean clover (Trifolium subterraneum) to ozone in relation to plant age and light conditions during exposure

1999

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Potted subterranean clover (Trifolium subterraneum) plants of different ages were exposed to 70 nl l −" ozone for 6 h, either during the light or during the dark period in a laboratory-based climate chamber. There was limited visible leaf injury on plants which were 14-20 and 28-34 d old and no significant decrease in biomass after daytime ozone exposure. The oldest leaves of 22-26 d old plants exhibited severe visible injury, which was associated with a significant reduction in biomass in 24-26 d old plants. Thus, ozone-induced visible injury of different magnitude developed in all plants, but was associated with biomass reduction only during a limited period of the plant's lifespan. Apart from modifying ozone uptake by plants, climatic conditions are important as growth modifiers. It is suggested that subterranean clover plants of defined developmental stages should be used in bioindication of ozone. Night ozone exposure injured significantly fewer leaves than day exposure. However, some leaves developed visible injury even after night ozone exposure. Night uptake of ozone may be of more importance in northern than in central and southern Europe, because summer nights are short and, for a certain period, never completely dark.

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Interactions between ozone and plant cuticles

Cited by 152 publications

References 26 publications

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

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

Impacts of ozone on Plantago major: apoplastic and symplastic antioxidant status

Response of subterranean clover (Trifolium subterraneum) to ozone in relation to plant age and light conditions during exposure

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