Influence of Pythium oligandrum Biocontrol on Fungal and Oomycete Population Dynamics in the Rhizosphere
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چکیده
منابع مشابه
Influence of Pythium oligandrum biocontrol on fungal and oomycete population dynamics in the rhizosphere.
Fungal and oomycete populations and their dynamics were investigated following the introduction of the biocontrol agent Pythium oligandrum into the rhizosphere of tomato plants grown in soilless culture. Three strains of P. oligandrum were selected on the basis of their ability to form oospores (resting structures) and to produce tryptamine (an auxin-like compound) and oligandrin (a glycoprotei...
متن کاملPythium oligandrum biocontrol in the rhizosphere: influence on fungal and oomycete population dynamics
Barbier 1,2 , C. André Lévesque 3 and Patrice Rey 2,4* 3 4 Université Européenne de Bretagne, France 1 ; 5 Université de Brest, EA3882 Laboratoire Universitaire de Biodiversité et Ecologie 6 Microbienne, IFR148 ScInBioS, ESMISAB, Technopôle Brest-Iroise, 29280 Plouzané, 7 France 2 ; 8 Agriculture and Agri-Food Canada, Eastern Cereal and Oilseed Research Centre, 960 9 Carling Avenue, Ottawa, ON ...
متن کاملCharacterisation of the early events in atypical tomato root colonisation by a biocontrol agent, Pythium oligandrum.
The specific oomycete-plant relationship established between a biological agent, Pythium oligandrum, and tomato (Lycopersicon esculentum Mill.) plants was examined over the first 48 h after inoculation of tomato roots with the antagonist. One of the most significant effects was the quick colonisation of cortical and vascular root areas by P. oligandrum (until 9 h post-inoculation); it was simil...
متن کاملDraft Genome Sequence of the Mycoparasitic Oomycete Pythium oligandrum Strain CBS 530.74
The oomycete Pythium oligandrum is a mycoparasite and licenced biological control agent. Here, we report the draft genome sequence of P. oligandrum strain CBS 530.74, which is 36.80 Mb. It contains 341 scaffolds and 11,647 predicted protein-coding genes. As reported for plant-pathogenic Pythium species, RXLR-type effector sequences are absent.
متن کاملEffects of fungal root pathogens on the population dynamics of biocontrol strains of fluorescent pseudomonads in the wheat rhizosphere.
The influences of Gaeumannomyces graminis var. tritici (which causes take-all of wheat), Rhizoctonia solani AG-8 (which causes rhizoctonia root rot of wheat), Pythium irregulare, P. aristosporum, and P. ultimum var. sporangiiferum (which cause pythium root rot of wheat) on the population dynamics of Pseudomonas fluorescens 2-79 and Q72a-80 (bicontrol strains active against take-all and pythium ...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2009
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.02643-08