Dynamique des populations fongiques et bactériennes de la rhizosphère des noisetiers truffiers. II. Chélation du fer et répartition taxonomique chez les Pseudomonas fluorescents
M. Mamoun,J.M. Olivier +1 more
TLDR
Pour preciser l'environnement de Tuber melanosporum artificiellement associee au noisetier, les populations bacteriennes des sols de truffieres ont ete analysees de facon quantitative (denombrement) and qualitative (aptitude a chelater le fer et identification taxonomique).Abstract:
Pour preciser l'environnement de Tuber melanosporum artificiellement associee au noisetier, les populations bacteriennes des sols de truffieres ont ete analysees de facon quantitative (denombrement) et qualitative (aptitude a chelater le fer et identification taxonomique). Les Pseudomonas fluorescents sont surtout actifs au niveau du rhizoplan ou l'espece P. fluorescens sensu stricto represente le taxon principal. Un groupe taxonomique intermediaire entre P. fluorenscens et P. putida s'est revele caracteristique de la zone racinaire. Les germes ayant les plus fortes aptitudes a chelater le fer sont egalement localises dans la proche rhizosphere. […]read more
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Journal ArticleDOI
Tansley Review No. 76 Helper bacteria: a new dimension to the mycorrhizal symbiosis
TL;DR: A number of fundamental questions which remain unanswered about mycorrhization helper bacteria are pointed out and some investigation priorities are suggested in this new field of myCorrhiza research.
Journal ArticleDOI
Metabolic and Genotypic Fingerprinting of Fluorescent Pseudomonads Associated with the Douglas Fir-Laccaria bicolor Mycorrhizosphere.
TL;DR: The results suggest that L. bicolor exerts a trehalose-mediated selection on the fluorescent pseudomonads present in the vicinity of the mycorrhizas.
Journal ArticleDOI
Biological interactions in the mycorrhizosphere
TL;DR: The significance of biological interactions in the mycorrhizosphere is considered from the standpoints of plant ecology and of practical application.
Journal ArticleDOI
Interactions between ectomycorrhizal symbiosis and fluorescent pseudomonads on Acacia holosericea: isolation of mycorrhiza helper bacteria (MHB) from a Soudano‐Sahelian soil
Hassna Founoune,Robin Duponnois,Jean Marie Meyer,Jean Thioulouse,Dominique Masse,Jean Luc Chotte,Marc Neyra +6 more
TL;DR: These mycorrhiza helper bacteria could have a great ecological importance in tropical areas through the reforestation programs.
Journal ArticleDOI
Competition between Tuber melanosporum and other ectomycorrhizal fungi, under two irrigation regimes
M. Mamoun,J. M. Olivier +1 more
TL;DR: A glasshouse experiment was conducted to simulate the competition between artificially introduced Tuber melanosporum (Vitt.) and other symbionts, occurring on outplanted truffle-producing trees, and found that Tuber brumale stimulates the development of T. melanospora under these conditions.
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