JonesGrenonPeatEtAl2009

Référence

Jones, M.D., Grenon, F., Peat, H., Fitzgerald, M., Holt, L., Philip, L.J., Bradley, R.L. (2009) Differences in 15N uptake amongst spruce seedlings colonized by three pioneer ectomycorrhizal fungi in the field. Fungal Ecology, 2(3):110-120. (Scopus )

Résumé

Amongst the factors hypothesized to be responsible for high ectomycorrhizal fungal diversity are resource partitioning and niche differentiation. However, functional differences amongst ectomycorrhizal fungi, which are pre-requisites for resource partitioning, are known primarily from lab studies; now realistic field experiments are needed in order to establish that these differences exist under field conditions. In this study, Picea engelmannii seedlings planted in a subalpine clearcut became naturally colonized over the course of 1 y. Then a defined volume of soil around each seedling was injected with 15N-labelled nitrate, ammonium or aspartate. Seedling biomass and N content increased, but N concentration decreased, with percent colonization of root systems. Accumulation of 15N per unit dry weight was not affected by the proportion of roots colonized but, rather, was influenced by the primary ectomycorrhizal fungus colonizing the seedling. Seedlings colonized by a Wilcoxina sp. accumulated more 15N per g than seedlings colonized by a Cenococcum sp. The presence of dark septate hyphae in the mantle was associated with lower accumulation of 15N by seedlings colonized by Amphinema byssoides. Our results demonstrate that the physiological differences required to support the concept of niche differentiation amongst ectomycorrhizal fungi exist in the field. © 2009 Elsevier Ltd and The British Mycological Society.

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 { JonesGrenonPeatEtAl2009,
    AUTHOR = { Jones, M.D. and Grenon, F. and Peat, H. and Fitzgerald, M. and Holt, L. and Philip, L.J. and Bradley, R.L. },
    TITLE = { Differences in 15N uptake amongst spruce seedlings colonized by three pioneer ectomycorrhizal fungi in the field },
    JOURNAL = { Fungal Ecology },
    YEAR = { 2009 },
    VOLUME = { 2 },
    PAGES = { 110-120 },
    NUMBER = { 3 },
    ABSTRACT = { Amongst the factors hypothesized to be responsible for high ectomycorrhizal fungal diversity are resource partitioning and niche differentiation. However, functional differences amongst ectomycorrhizal fungi, which are pre-requisites for resource partitioning, are known primarily from lab studies; now realistic field experiments are needed in order to establish that these differences exist under field conditions. In this study, Picea engelmannii seedlings planted in a subalpine clearcut became naturally colonized over the course of 1 y. Then a defined volume of soil around each seedling was injected with 15N-labelled nitrate, ammonium or aspartate. Seedling biomass and N content increased, but N concentration decreased, with percent colonization of root systems. Accumulation of 15N per unit dry weight was not affected by the proportion of roots colonized but, rather, was influenced by the primary ectomycorrhizal fungus colonizing the seedling. Seedlings colonized by a Wilcoxina sp. accumulated more 15N per g than seedlings colonized by a Cenococcum sp. The presence of dark septate hyphae in the mantle was associated with lower accumulation of 15N by seedlings colonized by Amphinema byssoides. Our results demonstrate that the physiological differences required to support the concept of niche differentiation amongst ectomycorrhizal fungi exist in the field. © 2009 Elsevier Ltd and The British Mycological Society. },
    COMMENT = { Export Date: 8 July 2009 Source: Scopus doi: 10.1016/j.funeco.2009.02.002 },
    ISSN = { 17545048 (ISSN) },
    KEYWORDS = { 15N, Ammonium, Cenococcum, Community assemblage, Dark septate fungi, Functional diversity, Nitrate, Nitrogen uptake, Picea, Wilcoxina, Amphinema byssoides, Cenococcum, Fungi, Picea, Picea engelmannii, Wilcoxina },
    OWNER = { Luc },
    TIMESTAMP = { 2009.07.08 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-67349255297&partnerID=40 },
}

********************************************************** *************************** FRQNT ************************ **********************************************************

Le CEF est un
regroupement stratégique du

********************************************************** *********************** Infolettre *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

**********************************************************

***************** Formations et Écoles d'été ****************** **********************************************************

Formations et Écoles d'été

Drones et applications en foresterie 
25 et 26 mai 2022, Sherbrooke mais à distance

********************************************************** ***************** Pub - Colloque du CEF ****************** **********************************************************

********************************************************** ***************** Pub - Colloque NAFEW ****************** **********************************************************

********************************************************** ***************** Pub - Colloque NAFEW ****************** **********************************************************

********************************************************** ***************** Pub - NADEF 2022 ****************** **********************************************************

15 au 25 Juin à la FERLD
Inscriptions ouvertes 

********************************************************** *************** Pub - Colloque Mycorhize ***************** **********************************************************

********************************************************** ********* Mémoire CEF Changements Climatiques ************ **********************************************************

**********************************************************

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

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

CEF-Référence
La référence vedette !

  • Voici une liste (clairement incomplète) des packages R axés sur l'écologie! N'hésitez pas à ajouter à la liste

Voir les autres...