The ecology and functioning of vesicular arbuscular mycorrhizas in coexisting grassland species .1. Seasonal patterns of mycorrhizal occurrence and morphology

Détails

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Etat: Public
Version: de l'auteur
ID Serval
serval:BIB_AA8449FCAC7A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The ecology and functioning of vesicular arbuscular mycorrhizas in coexisting grassland species .1. Seasonal patterns of mycorrhizal occurrence and morphology
Périodique
New Phytologist
Auteur(s)
Sanders I.R., Fitter A.H.
ISSN
0028-646X
Statut éditorial
Publié
Date de publication
1992
Volume
120
Numéro
4
Pages
517-524
Langue
anglais
Notes
HR173 NEW PHYTOL
Résumé
Vesicular-arbuscular mycorrhizal infection and morphology was measured in six co-existing plant species of a semi-natural grassland during a two year period in order (1) to measure within-year variation in mycorrhizal infection (2) to determine whether seasonal trends in mycorrhizal infection were the same in both years and (3) to quantify and interspecific differences in this variation. Seasonal trends in total mycorrhizal infection in the six plant species grouped together were very different in the two years. When the plant species were considered individually distinct patterns emerged. Mycorrhizal infection in Plantago lanceolata L.; Rumex acetosa L. varied greatly both within and between years. In contrast Festuca rubra L. Holcus lanatus L. Lathyrus pratensis L.; Trifolium pratense L. all exhibited more constant levels of infection within one year and between successive years. However interspecific differences in infection occurred between these four species. Although there was temporal variation in hyphal density arbuscule and vesicle density varied very little with time and thus could not be used to indicate whether there are predictable periods of host cost or benefit. Vesicle width varied significantly between the plant species; this might represent infection by different fungal species.
Mots-clé
VA mycorrhizas, Grassland ecology, VAM morphology
Web of science
Création de la notice
24/01/2008 17:38
Dernière modification de la notice
20/08/2019 15:14
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