Targets for Crop Biotechnology in a Future High-CO2 and High-O3 World1

  title={Targets for Crop Biotechnology in a Future High-CO2 and High-O3 World1},
  author={Elizabeth A. Ainsworth and Alistair Rogers and Andrew D. B. Leakey},
  journal={Plant Physiology},
  pages={13 - 19}
Predictions of population growth outpacing agricultural production have been made for the past 200 years ([Malthus, 1817][1]; [Ehrlich, 1968][2]), and though world food supply has more than kept pace with demand, there are over 850 million malnourished people in the world, the vast majority in 
Uncovering hidden genetic variation in photosynthesis of field‐grown maize under ozone pollution
It is suggested that selection under elevated ozone is needed to identify deleterious alleles in the world's largest commodity crop.
Ozone effects on crops and consideration in crop models
Understanding and improving global crop response to ozone pollution.
  • E. Ainsworth
  • Environmental Science
    The Plant journal : for cell and molecular biology
  • 2017
This work provides the fundamental background and justification for breeding and biotechnological approaches for improving O3olerance in crops and identifies more promising phenotypes for O3 tolerance.
Synergistic action of tropospheric ozone and carbon dioxide on yield and nutritional quality of Indian mustard (Brassica juncea (L.) Czern.)
Elevated ozone significantly decreased the oil and micronutrient content in mustard and removal of O3 from air in the charcoal-filtered treatment resulted in a significant increase in the same.
Impact of tropospheric ozone on crop growth and productivity - a review
This review presents tropospheric ozone (O3), an air pollutant affecting agriculture by reducing crop yield and deteriorating quality of produce. O3 enters leaves through stomata and diffuses within
The effects of tropospheric ozone on net primary productivity and implications for climate change.
The atmospheric chemistry governing tropospheric O( 3) mass balance, the effects of O(3) on stomatal conductance and net primary productivity, and implications for agriculture, carbon sequestration, and climate change are reviewed.
Greater antioxidant and respiratory metabolism in field-grown soybean exposed to elevated O3 under both ambient and elevated CO2.
It was determined that soybean antioxidant metabolism increased with increasing [O(3)], in both ambient and elevated [CO(2]], and energetically expensive increases in antioxidant metabolism and tetrapyrrole synthesis at elevated [ O(3] were associated with greater transcript levels of enzymes involved in respiratory metabolism.


Food for Thought: Lower-Than-Expected Crop Yield Stimulation with Rising CO2 Concentrations
Free-air concentration enrichment (FACE) technology has now facilitated large-scale trials of the major grain crops at elevated [CO2] under fully open-air field conditions, which casts serious doubt on projections that rising carbon dioxide concentration will fully offset losses due to climate change.
Will photosynthesis of maize (Zea mays) in the US Corn Belt increase in future [CO2] rich atmospheres? An analysis of diurnal courses of CO2 uptake under free‐air concentration enrichment (FACE)
The C4 grass Zea mays (maize or corn) is the third most important food crop globally in terms of production and demand is predicted to increase 45% from 1997 to 2020. However, the effects of rising
Future crops: The other greenhouse effect
Rising carbon dioxide levels should increase crop yields. But what if their effect on the nutritional value of our food is less benign, asks Ned Stafford.
Smaller than predicted increase in aboveground net primary production and yield of field-grown soybean under fully open-air (CO 2 ) elevation
The Intergovernmental Panel on Climate Change projects that atmospheric [CO2] will reach 550ppm by 2050. Numerous assessments of plant response to elevated [CO2] have been conducted in chambers and
The challenge of improving nitrogen use efficiency in crop plants: towards a more central role for genetic variability and quantitative genetics within integrated approaches.
A critical overview is provided on how understanding of the physiological and molecular controls of N assimilation under varying environmental conditions in crops has been improved through the use of combined approaches, mainly based on whole-plant physiology, quantitative genetics, and forward and reverse genetics approaches.
Prospects for crop production under drought: research priorities and future directions
Research must combine the latest genomics resources including quantitative genetics, genomics and biomathematics with an ecophysiological understanding of the interactions between crop plant genotypes and the growing environment to better inform crop improvement.
[Responses of agricultural crops of free-air CO2 enrichment].
Applying innovations and new technologies for international collaborative wheat improvement
Despite the successes of the Green Revolution, about a billion people are still undernourished and food security in the developing world faces new challenges in terms of population growth, reduced