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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal UMR ISPA

Home page


Research Engineer

Teamleader of the BIONUT team

Bordeaux Sciences Agro, 1 cours du Général de Gaulle,


CS 40201, F-33175 Gradignan, France.

INRA, Centre de Bordeaux Aquitaine, 71 avenue E. Bourlaux,

CS 20032 33882 Villenave d'Ornon cedex

05 57 12 25 23


Curriculum / Training / Diplomas

Bakker MR. 1998. ‘The effect of calcium applications on fine roots of oak (Quercus petraea and robur): consequences of the changes in the rhizosphere’. PhD, University Nancy I.

Bakker MR. 2012. ‘How to get the nutrients into the trees?’ Habilitation to Direct Research, University of Bordeaux.

Research activities

My research activities focus on the bioavailability of nutrients in mineral or organic form and the uptake of these nutrients by trees or understorey plant species. I do this essentially at the forest stand level, either using mono-specific or mixed forests, at times in comparison with other environments (grasslands) and or by evaluating the use of fertilizers, irrigation or lime amendments to these environments. My approaches include the study of stocks and fluxes of nutrients in soils, the root systems of trees and plants, their symbiotic partners as well as the role of microbes in the nutrient cycling in these soils.

Selected publications

Bakker MR, Augusto L and DL Achat (2006) Fine root distribution of trees and understory in mature stands of maritime pine (Pinus pinaster) on dry and humid sites. Plant Soil 286: 37–51.

Ostonen I, Püttsepp Ü, Biel C, Alberton O, Bakker MR, Lõhmus K, Majdi H, Metcalfe D, Olsthoorn AFM, Pronk A, Vanguelova E, Weih M and I Brunner (2007). Specific root length as an indicator of environmental change. Plant Biosystems 141: 426–442.

Bakker MR, Jolicoeur E, Trichet P, Augusto L, Plassard C, Guinberteau J and D Loustau (2009). Adaptation of fine roots to annual fertilization and irrigation in a 13-year-old Pinus pinaster stand. Tree Physiol. 29:229–238.

Epron D, Ngao J, Dannoura M, Bakker MR, Zeller B, Bazot S, Bosc A, Plain C, Lata J-C, Priault P, Barthes L and D Loustau (2011) Seasonal variations of belowground carbon allocation assessed by in situ 13CO2 pulse labelling of trees. Biogeosciences 8: 1153–1168.

Gonzalez M, Augusto L, Gallet-Budynek A, Xue J, Yauschew-Raguenes N, Guyon D, Trichet P, Delerue F, Niollet S, Andreasson F, Achat DL and Bakker MR (2013) Contribution of understory species to total ecosystem aboveground and belowground biomass in temperate Pinus pinaster Ait. forests. For. Ecol. Manage. 289: 38–47.

Brunner I, Bakker MR, Björk RG, Hirano Y, Lukac M, Aranda X, Børja I, Eldhuset TD, Helmisaari HS, Jourdan C, Konôpka B, López BC, Miguel Pérez C, Persson H and I Ostonen (2013) Fine-root turnover rates of European forests revisited: an analysis of data from sequential coring and ingrowth cores. Plant Soil 362: 357–372.

Achat DL, Bakker MR, Augusto L, Derrien D, Gallegos N, Lashchinskiy N, Milin S, Nikitich P, Raudina T, Rusalimova O, Zeller B and Barsukov P (2013) Phosphorus status of soils from contrasting forested ecosystems in southwestern Siberia: effects of microbiological and physicochemical properties. Biogeosciences 10: 733–752.

Achat DL, Bakker MR, Augusto L and Morel C (2013) Contributions of microbial and physical–chemical processes to phosphorus availability in Podzols and Arenosols under a temperate forest. Geoderma 211-212: 18–27.

Augusto L, Achat DL, Bakker MR, Bernier F, Bert D, Danjon F, Khlifa R, Meredieu C and Trichet P (2015) Biomass and nutrients in tree root systems–sustainable harvesting of an intensively managed Pinus pinaster (Ait.) planted forest. GCB Bioenergy 7: 231–243.

Andreasson F, Gonzalez M, Augusto L and Bakker MR (2016) Comparison of ingrowth cores and ingrowth meshes in root studies: 3 years of data on Pinus pinaster and its understory. Trees-Structure and Function 30: 555–570.

Brédoire F, Nikitich P, Barsukov PA, Derrien D, Litvinov A, Rieckh H, Rusalimova O, Zeller B and Bakker MR (2016) Distributions of fine root length and mass with soil depth in natural ecosystems of southwestern Siberia. Plant Soil 400: 315–335. 

Boulmane M, Oubrahim H, Halim M, Bakker MR and L Augusto (2017) The potential of Eucalyptus plantations to restore degraded soils in semi-arid Morocco (NW Africa). Ann. For. Sci. 74: 57.

Guignabert A, Delerue F, Gonzalez M, Augusto L, Bakker MR (2018) Effects of management practices and topography on ectomycorrhizal fungi of Maritime pine during seedling recruitment. Forests 9: 245.

Bakker MR, Udo N, Atlan A, Gire C, Gonzalez M, Graham D, Leckie A, Milin S, Niollet S, Xue J , Delerue F (2019) Explaining the larger seed bank of an invasive shrub in non-native versus native environments by differences in seed predation and plant size. Annals of Botany (in press)