StarnaudHamelCaronEtAl1994

Référence

St-Arnaud, M., Hamel, C., Caron, M. and Fortin, J.A. (1994) Inhibition of Pythium-ultimum in roots and growth substrate of mycorrhizal Tagetes-patula colonized with Glomus intraradices. Canadian Journal of Plant Pathology, 16(3):187-194.

Résumé

Interactions between the vesicular arbuscular mycorrhizal (VAM) fungus Glomus intraradices and Pythium ultimum (Pu) were studied on Tagetes patula in relation to phosphorus (P) fertilization and delay between the VAM and pathogen inoculations. Two T patch were sown in each pot 31 days apart. The VAM fungus was inoculated at first sowing and Pu was added 5 days after the second sowing. VAM fungus acid Pu did not affect plant biomass. Vesicles and arbuscules of the VAM fungus were found in 1 to 46% of root length from the highest to the lowest P level. Pu did not affect VAM colonization. Root length bearing hyphal swellings of Pu was unrelated to P nutrition, but was reduced by VAM colonization. Root length bearing fungal structures was doubled by inoculation with Pu alone, but unaffected by Pu inoculation in VAM roots, suggesting that pathogen infection was lower in VAM roots. Number of Pu propagules in soil was 10 times tower in VAM systems than in controls and was not affected by P level. Therefore, the observed inhibition of Pu was not related to improved P nutrition of VAM plants. As root colonization by P was reduced in the young plants that were not initially mycorrhizal but sown in colonized soil, the reduction of Pa by the VAM fungus could be attributable either to a rapid stimulation of disease resistance mechanisms when the plants were contacted by the VAM fungus or to interaction between the two fungi in soil.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { StarnaudHamelCaronEtAl1994,
    AUTHOR = { St-Arnaud, M. and Hamel, C. and Caron, M. and Fortin, J.A. },
    TITLE = { Inhibition of Pythium-ultimum in roots and growth substrate of mycorrhizal Tagetes-patula colonized with Glomus intraradices },
    JOURNAL = { Canadian Journal of Plant Pathology },
    YEAR = { 1994 },
    VOLUME = { 16 },
    PAGES = { 187-194 },
    NUMBER = { 3 },
    NOTE = { Starnaud, m hamel, c caron, m fortin, ja },
    ABSTRACT = { Interactions between the vesicular arbuscular mycorrhizal (VAM) fungus Glomus intraradices and Pythium ultimum (Pu) were studied on Tagetes patula in relation to phosphorus (P) fertilization and delay between the VAM and pathogen inoculations. Two T patch were sown in each pot 31 days apart. The VAM fungus was inoculated at first sowing and Pu was added 5 days after the second sowing. VAM fungus acid Pu did not affect plant biomass. Vesicles and arbuscules of the VAM fungus were found in 1 to 46% of root length from the highest to the lowest P level. Pu did not affect VAM colonization. Root length bearing hyphal swellings of Pu was unrelated to P nutrition, but was reduced by VAM colonization. Root length bearing fungal structures was doubled by inoculation with Pu alone, but unaffected by Pu inoculation in VAM roots, suggesting that pathogen infection was lower in VAM roots. Number of Pu propagules in soil was 10 times tower in VAM systems than in controls and was not affected by P level. Therefore, the observed inhibition of Pu was not related to improved P nutrition of VAM plants. As root colonization by P was reduced in the young plants that were not initially mycorrhizal but sown in colonized soil, the reduction of Pa by the VAM fungus could be attributable either to a rapid stimulation of disease resistance mechanisms when the plants were contacted by the VAM fungus or to interaction between the two fungi in soil. },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ************* Écoles d'été et formation **************************** **********************************************************

Écoles d'été et formations

Cours aux cycles supérieurs: Terrain avancé en géographie 
10-15 juin 2019, FERLD, Abitibi-Témiscamingue
École d'été « Drones et télédétection environnementale » 
13-14 juin 2019, Sherbrooke
Ecole d'été en Biologie et Ecologie intégratives 
6-12 juillet 2019, Pyrénées françaises
École d'été en modélisation de la biodiversité 
19-23 août 2019, Orford
Cours aux cycles supérieurs: Aménagement des écosystèmes forestiers 
19-30 août 2019, Station FERLD

********************************************************** ***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...