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J Exp Bot. 2016 May;67(10):3015-26. doi: 10.1093/jxb/erw145. Epub 2016 Apr 6.

Perspectives for a better understanding of the metabolic integration of photorespiration within a complex plant primary metabolism network.

Author information

  • 1Institute of Plant Sciences Paris-Saclay, Université Paris-Sud, CNRS, INRA, Université d'Evry, 91405 Orsay Cedex, France michael.hodges@u-psud.fr.
  • 2Institute of Plant Sciences Paris-Saclay, Université Paris-Sud, CNRS, INRA, Université d'Evry, 91405 Orsay Cedex, France.
  • 3Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, SE-90187 Umeå, Sweden.
  • 4Departamento de Bioquímica Vegetal y Biología Molecular, Facultad de Química, Universidad de Sevilla, 141012 Sevilla, Spain.
  • 5School of Life Sciences, Department of Plant Sciences, University of Hyderabad, Hyderabad 500046, India.
  • 6Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks Street, Toronto, ON M5S3B2, Canada.
  • 7CAS-MPG Partner Institutes for Computational Biology, Shanghai Institutes for Biological Sciences, CAS, Shanghai 200031, China.
  • 8United States Department of Agriculture-Agricultural Research Service, Plant Genetics Research Unit, Donald Danforth Plant Science Center, St Louis, MO 63132, USA.
  • 9Institute of Plant Biochemistry, Cluster of Excellence on Plant Science (CEPLAS), Heinrich-Heine-Universität, Universitätsstraße 1, and Cluster of Excellence on Plant Sciences, 40225 Düsseldorf, Germany.

Abstract

Photorespiration is an essential high flux metabolic pathway that is found in all oxygen-producing photosynthetic organisms. It is often viewed as a closed metabolic repair pathway that serves to detoxify 2-phosphoglycolic acid and to recycle carbon to fuel the Calvin-Benson cycle. However, this view is too simplistic since the photorespiratory cycle is known to interact with several primary metabolic pathways, including photosynthesis, nitrate assimilation, amino acid metabolism, C1 metabolism and the Krebs (TCA) cycle. Here we will review recent advances in photorespiration research and discuss future priorities to better understand (i) the metabolic integration of the photorespiratory cycle within the complex network of plant primary metabolism and (ii) the importance of photorespiration in response to abiotic and biotic stresses.

KEYWORDS:

Biotic and abiotic stress; flux modeling; metabolic network; metabolic repair; photorespiration; regulation.

PMID:
27053720
DOI:
10.1093/jxb/erw145
[PubMed - in process]

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