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

Huang, Yongji; Sui, Lihua; Wang, W.; Geng, Chunmei; Yin, Baohui

doi:10.1016/j.atmosenv.2012.09.002

Cited by 18 publications

(9 citation statements)

References 28 publications

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“…Rice protein content is critical to nutritional quality, which is also closely connected with eating/cooking quality . Previous investigations have observed a trend of ozone‐induced increase in grain protein concentrations of rice and wheat . In the present study, a 24.5% increase in average ground‐level ozone concentration resulted in a 14% increase of protein concentration in milled rice across the two years and three levels of planting densities, which was close to the results obtained in 2007 and 2008 under similar experimental conditions by Wang et al .…”

Section: Discussionsupporting

confidence: 90%

“…Previous investigations have observed a trend of ozone‐induced increase in grain protein concentrations of rice and wheat . In the present study, a 24.5% increase in average ground‐level ozone concentration resulted in a 14% increase of protein concentration in milled rice across the two years and three levels of planting densities, which was close to the results obtained in 2007 and 2008 under similar experimental conditions by Wang et al . However, the magnitude of ozone‐induced increase in grain protein concentration observed in this field experiment was higher than that of rice or wheat grown in chambers .…”

Section: Discussionsupporting

confidence: 87%

“…Besides carbohydrates for providing much needed energy, rice protein is the best among cereal crops for its reasonable amino acid ratio and high digestibility . Previous studies have shown that protein content in rice grains tended to increase when exposed to ozone during the growing season . However, the response of rice grain protein content to ozone exposure also depends on ozone level and genotype .…”

Section: Introductionmentioning

confidence: 94%

See 2 more Smart Citations

Elevated tropospheric ozone increased grain protein and amino acid content of a hybrid rice without manipulation by planting density

Zhou

Peng

et al. 2014

J. Sci. Food Agric.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 94%

See 1 more Smart Citation

Elevated tropospheric ozone increased grain protein and amino acid content of a hybrid rice without manipulation by planting density

Zhou

Peng

et al. 2014

J. Sci. Food Agric.

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“…Therefore, the variation of leaf N status over time is essential to understand the underlying mechanism in crop yield loss and photosynthetic processes after exposure to elevated O 3 . Existing results demonstrated that elevated O 3 increased foliar N level in fen species [14], significantly decreased nitrate reductase activity in rice leaves [15], but had no significant effects on nutrient element concentrations in different tissues in wheat [16,17]. For soybean, the negative effects of O 3 on primary carbon metabolism have been well investigated, as indicated by stimulated aging and senescence, decreased photosynthesis and leaf chlorophyll content, impeded electron transport in the light reaction before senescence [18,19], a shorter development stage for carbon fixation [20] and relatively longer time for stomatal closure [21].…”

Section: Introductionmentioning

confidence: 97%

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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“…1, Huang et al, 2012). Four O 3 treatments were set up: the ambient air filtered by activated carbon (CK), 40 ppb, 80 ppb and 120 ppb.…”

Section: Ozone Fumigationmentioning

confidence: 99%

Influence of elevated ozone concentration on methanotrophic bacterial communities in soil under field condition

Huang

Zhong

2015

Atmospheric Environment

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

Cited by 18 publications

References 28 publications

Elevated tropospheric ozone increased grain protein and amino acid content of a hybrid rice without manipulation by planting density

Elevated tropospheric ozone increased grain protein and amino acid content of a hybrid rice without manipulation by planting density

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

Influence of elevated ozone concentration on methanotrophic bacterial communities in soil under field condition

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