Effects of ozone on growth, yield and leaf gas exchange rates of two Bangladeshi cultivars of wheat (Triticum aestivum L.)

Akhtar, Nahid; Yamaguchi, Masahiro; Inada, Hidetoshi; Hoshino, Daiki; Kondo, Takeshi; Izuta, Takeshi

doi:10.1016/j.envpol.2009.11.011

Cited by 43 publications

(21 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A possible explanation in some species is the reduction of the photosynthetic rates mainly due to non-stomatal factors, e.g. a reduction of maximum carboxylation capacity and electron transport rates (Akhtar et al, 2010;Feng et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

“…Current concentrations of ground‐level O 3 are enough to cause a significant yield loss in many crop plants in East Asia (Wang et al 2007a, Yamaguchi et al 2008, Emberson et al 2009, Akhtar et al 2010a, 2010b) as well as in Europe (Pleijel et al 2007, Dingenen et al 2009). In the near future, concentrations of ground‐level O 3 are expected to increase in East Asian countries, such as Japan, China and South Korea (Yamaji et al 2008).…”

Section: Introductionmentioning

confidence: 99%

“…In these seasons, winter wheat is mainly cultivated in Japan. Based on the results of many experimental studies, the sensitivity of wheat to O 3 may be higher than that of the other cereals (Feng et al 2007, Wang et al 2007b, Yamaguchi et al 2008, Akhtar et al 2010a). In general, however, the sensitivity of crops to O 3 varies with the developmental stage.…”

Section: Introductionmentioning

confidence: 99%

Relationship between cultivar difference in the sensitivity of net photosynthesis to ozone and reactive oxygen species scavenging system in Japanese winter wheat (Triticum aestivum)

Inada

Kondo

Akhtar

et al. 2012

Physiologia Plantarum

Self Cite

View full text Add to dashboard Cite

To clarify the relationship between cultivar difference in the sensitivity of net photosynthesis to ozone (O(3)) and the reactive oxygen species (ROS) scavenging system in wheat (Triticum aestivum), we investigated the effects of chronic exposure to ambient levels of O(3) on gas exchange rates, activity and concentration of ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco), activity of ROS scavenging enzymes and concentration of antioxidants of the flag leaf in two Japanese winter wheat cultivars (Norin 61 and Shirogane-komugi). Although the net photosynthetic rate of the flag leaf in Norin 61 was not significantly reduced by exposure to O(3), that in Shirogane-komugi was significantly reduced by the exposure to O(3) during the anthesis and early grain-filling stages. In the two cultivars, stomatal diffusive conductance to H(2) O of the flag leaf was not significantly affected by the exposure to O(3). The exposure to O(3) induced significant reductions in the activity and concentration of Rubisco, activities of catalase (CAT) and monodehydroascorbate reductase (MDAR) and concentrations of reduced form of ascorbate and total glutathione of the flag leaf in Shirogane-komugi. It was concluded that the sensitivity of net photosynthesis of flag leaf to O(3) is higher in Shirogane-komugi than in Norin 61, and the difference in the sensitivity to O(3) between the two cultivars is mainly due to that in the effects of O(3) on the detoxification ability of ROS, mainly determined by the activity of ROS scavenging enzymes, such as CAT and MDAR.

show abstract

“…Therefore, O 3 -induced reduction in A sat would be largely attributed to non-stomatal factors, i.e. impaired physiological activity of mesophyll cells (Akhtar et al, 2010;Biswas et al, 2008;Farage and Long, 1999). Further evidence was the increased Ci ( Fig.…”

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

View full text Add to dashboard Cite

• 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.

show abstract

Effects of ozone on growth, yield and leaf gas exchange rates of two Bangladeshi cultivars of wheat (Triticum aestivum L.)

Cited by 43 publications

References 30 publications

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

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

Relationship between cultivar difference in the sensitivity of net photosynthesis to ozone and reactive oxygen species scavenging system in Japanese winter wheat (Triticum aestivum)

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

Contact Info

Product

Resources

About