Impacts of methods and sites of plant breeding on ozone sensitivity in winter wheat cultivars

Biswas, Debabrata; Xu, He; Yang, Jiaheng; Li, Y.G.; Chen, S.B.; Jiang, Chuntao; Li, W.D.; Ma, Keping; Adhikary, Sanjoy Kumar; Wang, X.Z.; Jiang, Gaoming

doi:10.1016/j.agee.2009.06.009

Cited by 21 publications

(14 citation statements)

References 41 publications

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“…For example, the model plant A. thaliana showed substantial natural variation in ozone sensitivity exceeding the variation between ozone sensitive mutants and their wildtypes, and ozone sensitivity was strongly correlated with stomatal conductance (Brosche et al, 2010). Burkey and Carter (2009) identified significant variation in ozone tolerance by screening 30 North American soybeans genotypes, and Biswas et al (2008Biswas et al ( , 2009) demonstrated significant variation in ozone sensitivity between different wheat genotypes.…”

Section: Natural Variation In Ozone Tolerance In Ricementioning

confidence: 97%

Breeding of ozone resistant rice: Relevance, approaches and challenges

Frei

2015

Environmental Pollution

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Section: Natural Variation In Ozone Tolerance In Ricementioning

confidence: 97%

Breeding of ozone resistant rice: Relevance, approaches and challenges

Frei

2015

Environmental Pollution

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“…Currently, ozone tolerance is not yet included as a desirable trait in crop breeding schemes (Ainsworth, ; Frei, ; Lobell & Gourdji, ). Indeed, recently released high‐yielding wheat varieties tend to be more sensitive to ozone than the older varieties, in part explained by their higher stomatal conductance (Biswas et al., ).…”

Section: Introductionmentioning

confidence: 99%

Ozone pollution will compromise efforts to increase global wheat production

Mills

Sharps

Simpson

et al. 2018

Global Change Biology

215

118

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Introduction of high-performing crop cultivars and crop/soil water management practices that increase the stomatal uptake of carbon dioxide and photosynthesis will be instrumental in realizing the United Nations Sustainable Development Goal (SDG) of achieving food security. To date, however, global assessments of how to increase crop yield have failed to consider the negative effects of tropospheric ozone, a gaseous pollutant that enters the leaf stomatal pores of plants along with carbon dioxide, and is increasing in concentration globally, particularly in rapidly developing countries. Earlier studies have simply estimated that the largest effects are in the areas with the highest ozone concentrations. Using a modelling method that accounts for the effects of soil moisture deficit and meteorological factors on the stomatal uptake of ozone, we show for the first time that ozone impacts on wheat yield are particularly large in humid rain-fed and irrigated areas of major wheat-producing countries (e.g. United States, France, India, China and Russia). Averaged over 2010-2012, we estimate that ozone reduces wheat yields by a mean 9.9% in the northern hemisphere and 6.2% in the southern hemisphere, corresponding to some 85 Tg (million tonnes) of lost grain. Total production losses in developing countries receiving Official Development Assistance are 50% higher than those in developed countries, potentially reducing the possibility of achieving UN SDG2. Crucially, our analysis shows that ozone could reduce the potential yield benefits of increasing irrigation usage in response to climate change because added irrigation increases the uptake and subsequent negative effects of the pollutant. We show that mitigation of air pollution in a changing climate could play a vital role in achieving the above-mentioned UN SDG, while also contributing to other SDGs related to human health and well-being, ecosystems and climate change.

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“…In contrast, both old and modern wheat cultivars have been well characterized for their differential responses to O 3 (Barnes et al ., 1990; Biswas et al ., 2008 a , b , 2009; Biswas and Jiang, 2011). O 3 -induced loss of photosynthesis and growth is higher in the recently released winter wheat cultivars due to higher stomatal conductance, a larger reduction in antioxidative activities, and lower levels of dark respiration leading to higher oxidative damage to proteins and integrity of the cellular membrane than in the older cultivars (Biswas et al ., 2008 a ).…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have demonstrated that modern wheat cultivars are less responsive to elevated CO 2 (Manderscheid and Weigel, 1997) but more sensitive to O 3 compared with old cultivars (Barnes et al ., 1990; Biswas et al ., 2008 a , 2009) in terms of growth and yield. It was therefore hypothesized that the beneficial effects of elevated CO 2 on an old wheat cultivar could be attributed to its higher O 3 tolerance under elevated CO 2 and O 3 conditions.…”

Section: Introductionmentioning

confidence: 99%

Modification of photosynthesis and growth responses to elevated CO2 by ozone in two cultivars of winter wheat with different years of release

Biswas

et al. 2013

Journal of Experimental Botany

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The beneficial effects of elevated CO2 on plants are expected to be compromised by the negative effects posed by other global changes. However, little is known about ozone (O3)-induced modulation of elevated CO2 response in plants with differential sensitivity to O3. An old (Triticum aestivum cv. Beijing 6, O3 tolerant) and a modern (T. aestivum cv. Zhongmai 9, O3 sensitive) winter wheat cultivar were exposed to elevated CO2 (714 ppm) and/or O3 (72 ppb, for 7h d–1) in open-topped chambers for 21 d. Plant responses to treatments were assessed by visible leaf symptoms, simultaneous measurements of gas exchange and chlorophyll a fluorescence, in vivo biochemical properties, and growth. It was found that elevated CO2 resulted in higher growth stimulation in the modern cultivar attributed to a higher energy capture and electron transport rate compared with the old cultivar. Exposure to O3 caused a greater growth reduction in the modern cultivar due to higher O3 uptake and a greater loss of photosystem II efficiency (mature leaf) and mesophyll cell activity (young leaf) than in the old cultivar. Elevated CO2 completely protected both cultivars against the deleterious effects of O3 under elevated CO2 and O3. The modern cultivar showed a greater relative loss of elevated CO2-induced growth stimulation due to higher O3 uptake and greater O3-induced photoinhibition than the old cultivar at elevated CO2 and O3. Our findings suggest that the elevated CO2-induced growth stimulation in the modern cultivar attributed to higher energy capture and electron transport rate can be compromised by its higher O3 uptake and greater O3-induced photoinhibition under elevated CO2 and O3 exposure.

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Impacts of methods and sites of plant breeding on ozone sensitivity in winter wheat cultivars

Cited by 21 publications

References 41 publications

Breeding of ozone resistant rice: Relevance, approaches and challenges

Breeding of ozone resistant rice: Relevance, approaches and challenges

Ozone pollution will compromise efforts to increase global wheat production

Modification of photosynthesis and growth responses to elevated CO2 by ozone in two cultivars of winter wheat with different years of release

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