Differential ozone sensitivity in an old and a modern Swedish wheat cultivar—grain yield and quality, leaf chlorophyll and stomatal conductance

Pleijel, Håkan; Eriksen, Aud Berglen; Danielsson, Helena; Bondesson, N.; Selldén, G.

doi:10.1016/j.envexpbot.2005.01.004

Cited by 129 publications

(84 citation statements)

References 16 publications

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“…Accelerated leaf senescence was the most typical symptoms by elevated O 3 [2,37], which is regulated by processes involving chlorophyll degradation and leaf nutrient status [23,38,39]. In this study, E-O 3 significantly decreased net photosynthetic rate (45%) in all cultivars at flowering stage after about 15 consecutive exposure days, suggesting that the photosynthesis unit of soybean is very sensitive to O 3 .…”

Section: Discussionsupporting

confidence: 46%

Effects of elevated O3 exposure on seed yield, N concentration and photosynthesis of nine soybean cultivars (Glycine max (L.) Merr.) in Northeast China

et al. 2014

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a b s t r a c tNine soybean cultivars widely cultivated in Northeast China were investigated in present study to assess their O 3 sensitivities on the basis of the response of photosynthesis and seed yield to ambient and future ozone (O 3 ) concentrations, and determine whether the effects of O 3 vary with the developmental stages (flowering and seed filling stages). Relative to charcoal-filtered air (CF), elevated O 3 concentration (E-O 3 , ambient air + 40 ppb) significantly reduced soybean yields by 40%, with a range of 32-46% among cultivars. E-O 3 also induced significant decreases in pigment contents, net photosynthetic rate and chlorophyll a fluorescence at both flowering and seed filling stages in most cultivars. Except net photosynthetic rate and stomatal conductance (g s ) at seed filling stage, all variables showed no significant interaction between O 3 and cultivar, suggesting that all tested cultivars had similar sensitivities to O 3 . The responses of seed N content to E-O 3 differed among cultivars. Ambient O 3 concentration (mean of daily concentration of 19 ppb) did not induce any change relative to CF. Significant positive relationship between endogenous g s in CF and yield loss among cultivars was found only at seed filling stage. Positive correlation between effects of E-O 3 on leaf N content and effects on light saturated photosynthetic rate (A sat ) indicated that g s and leaf N content at seed filling stage contributes to yield loss and decreased photosynthesis by E-O 3 , respectively. It can be inferred that E-O 3 had a larger negative effects on seed filling stage than flowering stage of soybean.

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Section: Discussionsupporting

confidence: 46%

Effects of elevated O3 exposure on seed yield, N concentration and photosynthesis of nine soybean cultivars (Glycine max (L.) Merr.) in Northeast China

et al. 2014

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“…The economic loss of crops caused by ozone stress in the US and European countries each year reaches 2e4 billion US dollars (Adams et al, 1988) and 4 billion Euros (Holland et al, 2002) respectively; that caused by high ozone concentration in the Yangtze Delta area of China is 1.475 billion RMB (Feng et al, 2003). There are also some researches into the influence of ozone stress on crop quality (Pleijel et al, 2006;Piikki et al, 2008), but little has been reported concerning the influence on crop nitrogen metabolism. Rice is the major food crop in the world; its total product ranks the third in the world.…”

Section: Introductionmentioning

confidence: 99%

Visible injury and nitrogen metabolism of rice leaves under ozone stress, and effect on sugar and protein contents in grain

Huang¹,

Sui²,

Wang³

et al. 2012

Atmospheric Environment

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“…It has been reported that modern wheat cultivars are more sensitive to O 3 than old accessions due to higher g s and lower levels of antioxidant capacity (Pleijel et al, 2006), and that they are subjected to larger oxidative damages to proteins and cellular membranes (Biswas et al, 2008). In this study, five modern cultivars showed variable reduction of A sat at mid-grain filling stage with a wide range from 16% to78% when exposed to an elevation of average 8 h- [O 3 ] (9:00-17:00) from 44.4 ppb to 56.4 ppb , which suggests the presence of intraspecific variation in the response to elevated [O 3 ].…”

Section: Discussionmentioning

confidence: 99%

Differential effects of ozone on photosynthesis of winter wheat among cultivars depend on antioxidative enzymes rather than stomatal conductance

Feng

Wang

Pleijel

et al. 2016

Science of The Total Environment

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• 5 modern cultivars of wheat were investigated under fully open-air field conditions. • Significant O 3 effects were only found during the mid-grain filling stage.• The lower photosynthetic rates were mainly due to nonstomatal factors.• Antioxidative enzymes contributed to the differential response to E-O 3 among cultivars. from the initiation of tillering to final harvest. Pigments, gas exchange rates, chlorophyll a fluorescence, antioxidants contents, antioxidative enzyme activity and lipid oxidation were measured in three replicated plots throughout flag leaf development. Results showed that significant O 3 effects on most variables were only found during the mid-grain filling stage. Across five cultivars, E-O 3 significantly accelerated leaf senescence, as indicated by increased lipid oxidation as well as faster declines in pigment amounts and photosynthetic rates. The lower photosynthetic rates were mainly due to non-stomatal factors, e.g. lower maximum carboxylation capacity and electron transport rates. There were strong interactions between O 3 and cultivar in photosynthetic pigments, light-saturated photosynthesis rate and chlorophyll a fluorescence with O 3 -sensitive (Y19, Y2 and Y15) and O 3 -tolerant (J2, Y16) cultivars being clearly differentiated in their responses to E-O 3 . E-O 3 significantly influenced the antioxidative enzymes but not antioxidant contents. G R A P H I C A L A B S T R A C T a b s t r a c t a r t i c l e i n f o Contents lists available at ScienceDirectScience of the Total Environment j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / s c i t o t e n v cultivar were found in antioxidative enzymes, such as SOD and CAT, but not in stomatal conductance (g s ). Therefore, it can be concluded that antioxidative enzymes rather than g s or antioxidants are responsible for the differential responses to E-O 3 among cultivars. These findings provide important information for the development of accurate modeling O 3 effects on crops, especially with respect to the developmental stage when O 3 damage to photosynthesis becomes manifest.

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Differential ozone sensitivity in an old and a modern Swedish wheat cultivar—grain yield and quality, leaf chlorophyll and stomatal conductance

Cited by 129 publications

References 16 publications

Effects of elevated O3 exposure on seed yield, N concentration and photosynthesis of nine soybean cultivars (Glycine max (L.) Merr.) in Northeast China

Effects of elevated O3 exposure on seed yield, N concentration and photosynthesis of nine soybean cultivars (Glycine max (L.) Merr.) in Northeast China

Visible injury and nitrogen metabolism of rice leaves under ozone stress, and effect on sugar and protein contents in grain

Differential effects of ozone on photosynthesis of winter wheat among cultivars depend on antioxidative enzymes rather than stomatal conductance

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