title: Manipulating photorespiration to increase plant productivity: recent advances and perspectives for crop improvement.
abstract: Recycling of the 2-phosphoglycolate generated by the oxygenase reaction of Rubisco requires a complex and energy-consuming set of reactions collectively known as the photorespiratory cycle. Several approaches aimed at reducing the rates of photorespiratory energy or carbon loss have been proposed, based either on screening for natural variation or by means of genetic engineering. Recent work indicates that plant yield can be substantially improved by the alteration of photorespiratory fluxes or by engineering artificial bypasses to photorespiration. However, there is also evidence indicating that, under certain environmental and/or nutritional conditions, reduced photorespiratory capacity may be detrimental to plant performance. Here we summarize recent advances obtained in photorespiratory engineering and discuss prospects for these advances to be transferred to major crops to help address the globally increasing demand for food and biomass production.
authors.affiliation: Departamento de Bioquímica Vegetal y Biología Molecular, Facultad de Química, 41012 Sevilla, Spain mbetti@us.es.
authors.forename: Marco
authors.initials: M
authors.lastname: Betti
authors.affiliation: Plant Physiology Department, University of Rostock, D-18051 Rostock, Germany.
authors.forename: Hermann
authors.initials: H
authors.lastname: Bauwe
authors.affiliation: Research School of Biology, The Australian National University, Canberra ACT 2601, Australia.
authors.forename: Florian A
authors.initials: FA
authors.lastname: Busch
authors.affiliation: Max-Planck Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany.
authors.forename: Alisdair R
authors.initials: AR
authors.lastname: Fernie
authors.affiliation: Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, S-90187 Umeå, Sweden.
authors.forename: Olivier
authors.initials: O
authors.lastname: Keech
authors.affiliation: Institute of Plant Molecular and Developmental Biology, Heinrich-Heine-University, 40225 Düsseldorf, Germany.
authors.forename: Myles
authors.initials: M
authors.lastname: Levey
authors.affiliation: Global Change and Photosynthesis Research Unit, United States Department of Agriculture/Agricultural Research Service, Urbana, IL 61801, USA Institute for Genomic Biology, University of Illinois, Urbana, IL 61801, USA.
authors.forename: Donald R
authors.initials: DR
authors.lastname: Ort
authors.affiliation: Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK.
authors.forename: Martin A J
authors.initials: MA
authors.lastname: Parry
authors.affiliation: Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks Street, Toronto, Ontario, Canada, M5S 3B2.
authors.forename: Rowan
authors.initials: R
authors.lastname: Sage
authors.affiliation: Plant Physiology Department, University of Rostock, D-18051 Rostock, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Timm
authors.affiliation: Global Change and Photosynthesis Research Unit, United States Department of Agriculture/Agricultural Research Service, Urbana, IL 61801, USA Carl Woese Institute for Genomic Biology, University of Illinois, Urbana, IL 61801, USA.
authors.forename: Berkley
authors.initials: B
authors.lastname: Walker
authors.affiliation: Institute of Plant Biochemistry, Cluster of Excellence on Plant Science (CEPLAS), Heinrich-Heine-University, 40225 Düsseldorf, Germany.
authors.forename: Andreas P M
authors.initials: AP
authors.lastname: Weber
mesh_terms: D002245:Carbon Dioxide / Q000378:metabolism; D000069599:Crop Production / Q000379:methods*; D005818:Genetic Engineering / Q000379:methods*; D010788:Photosynthesis / Q000235:genetics* / Q000502:physiology; D063245:Plant Development / Q000235:genetics; D010944:Plants / Q000235:genetics
chemical_list: D002245:Carbon Dioxide
keywords: Crops; Rubisco; food production; genetic engineering; photorespiration; yield improvement.