Open AccessDynamics of ectomycorrhizae in Abies amabilis stands: The role of Cenococcum graniforme
Author(s) -
Vogt Kristiina A.,
Edmunds Robert L.,
Grier Charles C.
Publication year - 1981
Publication title -
ecography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.973
H-Index - 128
eISSN - 1600-0587
pISSN - 0906-7590
DOI - 10.1111/j.1600-0587.1981.tb00994.x
Subject(s) - ectomycorrhizae , biology , biomass (ecology) , botany , montane ecology , mycorrhizal fungi , root system , mycorrhiza , ecology , horticulture , symbiosis , genetics , bacteria , inoculation
The growth and development of the predominant mycorrhizal fungus infecting the root systems of subalpine Pacific silver fir was examined seasonally in 23 and 180 yr old stands. All data was obtained by sorting roots from intact soil cores separated into forest floor and mineral soil horizons. The predominant mycorrhizal fungus infecting the root systems of 23 and 180 yr old Pacific silver fir was Cenococcum graniforme. C. graniforme comprised 36–97% and 40–96% of the total mycorrhizal root tips in the soil profile in the young and old stands, respectively. C. graniforme root biomass reached a maximum in autumn in the young stand, and in winter in the old. Dual mycorrhizal associations were commonly observed on the same root tip during the spring and autumn periods of root elongation in both stands. Over 80% of the C. graniforme roots were located in the forest floor and A‐horizon throughout the study in both stands, Sclerotia were predominantly located in the A‐horizon (38‐70%) in both stands.