Journal
PLANT SCIENCE
Volume 210, Issue -, Pages 70-81Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.plantsci.2013.05.009
Keywords
Nitrogen use efficiency; Nitrogen metabolism; microRNA; Nitrogen starvation response; Regulation; Metabolic engineering
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Funding
- Alberta Crop Industry Development Fund
- Natural Sciences and Engineering Research Council (NSERC) Collaborative Research and Development grant
- Bayer CropScience
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Nitrogen is the key limiting nutrient required for plant growth. The application of nitrogen-based fertilizers to crops has risen dramatically in recent years, resulting in significant yield increases. However, increased production has come at the cost of substantial negative environmental consequences. Higher crop production costs, increased consumption of food and fertilizer, and a growing global population have led to calls for a second green revolution using modern genetic manipulation techniques to improve the production, yield, and quality of crops. Considerable research is being directed toward the study and engineering of nitrogen use efficiency in crop plants. The end goal is to reduce the amount of nitrogen-based fertilizer used and thereby reduce production costs and environmental damage while increasing yields. In this review, we present an overview of recent advances in understanding the regulation of nitrogen metabolism by the action of microRNAs with a view toward engineering crops with increased nitrogen use efficiency. (c) 2013 Elsevier Ireland Ltd. All rights reserved.
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