Responses of soil microbial catabolic diversity to arbuscular mycorrhizal inoculation and soil disinfection

Autor: A. P. Dabire, A. Bilgo, Antoine Galiana, Marija Kisa, K. S. Sangare, Victor Hien, Yves Prin, Robin Duponnois, Christian Plenchette
Přispěvatelé: Institut de Recherche pour le Développement (IRD), Centre National de la Recherche Scientifique et Technologique du Burkina Faso (CNRST), Biologie et Gestion des Adventices (BGA), Université de Bourgogne (UB)-Institut National de la Recherche Agronomique (INRA)-Etablissement National d'Enseignement Supérieur Agronomique de Dijon (ENESAD), Acteurs, Ressources et Territoires dans le Développement (UMR ART-Dev), Centre National de la Recherche Scientifique (CNRS)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Université de Perpignan Via Domitia (UPVD)-Université Paul-Valéry - Montpellier 3 (UPVM), Laboratoire Commun de Microbiologie IRD/ISRA/UCAD
Rok vydání: 2007
Předmět:
0106 biological sciences
Désinfection du sol
SOIL DISTURBANCE
Carboxylic Acids
Plant Science
Plant Roots
01 natural sciences
Mycorhizé à vésicule et arbuscule
ARBUSCULAR MYCORRHIZAL FUNGI
Soil
F01 - Culture des plantes
Mycorrhizae
Facteur de risque
Amino Acids
Mycorrhiza
Soil Microbiology
[SDV.MP.MYC]Life Sciences [q-bio]/Microbiology and Parasitology/Mycology
2. Zero hunger
microbial catabolic diversity
biology
Catabolisme
04 agricultural and veterinary sciences
General Medicine
Sorghum bicolor
Carbohydrate Metabolism
Species evenness
Glomus intraradices
Biodiversité
Micro-organisme du sol
arbuscular mycorrhizal fungi
complex mixtures
010603 evolutionary biology
Inoculation
Propagule
Genetics
Flore du sol
Poaceae
RELATION PLANTE-MICROORGANISME
Symbiosis
Croissance
Molecular Biology
Ecosystem
Sorghum
Ecology
Evolution
Behavior and Systematics
Catabolism
Fungi
Impact sur l'environnement
P34 - Biologie du sol
15. Life on land
biology.organism_classification
Disinfection
Agronomy
soil disturbance
040103 agronomy & agriculture
MICROBIAL CATABOLIC DIVERSITY
0401 agriculture
forestry
and fisheries
Species richness
Zdroj: Mycorrhiza
Mycorrhiza, Springer Verlag, 2007, 17 (6), pp.537-545. ⟨10.1007/s00572-007-0126-5⟩
ISSN: 1432-1890
0940-6360
DOI: 10.1007/s00572-007-0126-5
Popis: International audience; Although it is usually admitted that arbuscular mycorrhizal (AM) fungi are key components in soil bio-functioning, little is known on the response of microbial functional diversity to AM inoculation. The aims of the present study were to determine the influence of Glomus intraradices inoculum densities on plant growth and soil microflora functional diversity in autoclaved soil or non-disinfected soil. Microbial diversity of soil treatments was assessed by measuring the patterns of in situ catabolic potential of microbial communities. The soil disinfection increased sorghum growth, but lowered catabolic evenness (4.8) compared to that recorded in the non-disinfected soil (6.5). G. intraradices inoculation induced a higher plant growth in the autoclaved soil than in the non-disinfected soil. This AM effect was positively related to inoculum density. Catabolic evenness and richness were positively correlated with the number of inoculated AM propagules in the autoclaved soil, but negatively correlated in the non-disinfected soil. In addition, after soil disinfection and AM inoculation, these microbial functionality indicators had higher values than in the autoclaved or in the non-disinfected soil without AM inoculation. These results are discussed in relation to the ecological influence of AM inoculation, with selected fungal strains and their associated microflora on native soil microbial activity
Databáze: OpenAIRE
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