Showing papers by "Anders Dahlberg published in 1995"
TL;DR: It has been possible using this approach to demonstrate that while young populations tend to consist of numerous small mycelia, individuals in older populations tends to be fewer and larger but heterogeneous in scale.
Abstract: To understand the functioning and ecological roles of ectomycorrhizal fungi in natural ecosystems, it is necessary to have adequate knowledge of the spatial distribution of individual mycelial systems in populations and communities and how this distribution may persist or vary with time. However, this issue has attracted relatively little attention until recently. Moreover, the limited information available is mostly based on the distribution of sporocarps, which is at best an unreliable indicator of the location and activity of mycelia. More useful information can be obtained using somatic and sexual incompatibility tests, as well as molecular markers to trace the distribution of individual genets over a range of spatial and temporal scales. For example, it has been possible using this approach to demonstrate that while young populations tend to consist of numerous small mycelia, individuals in older populations tend to be fewer and larger but heterogeneous in scale. It has also been possible to verify t...
99 citations
01 Jan 1995
TL;DR: Compared to the advances of plant ecology, the knowledge of the fungal communities, both mycorrhizal and saprophytic, is rudimental.
Abstract: Descriptions of the species composition of mycorrhizal communities has up to recent times almost exclusively been made using fruitbody inventories (Vogt et al. 1991). However, recent studies (Dahlberg & Stenlid, 1994) have shown that sporocarp biomass constitutes only a few percent of the total (annual accumulative) biomass of ectomycorrhiza (Taylor and Alexander, 1990; Danielson and Visser, 1989). More importantly, sporocarps only poorly reflect the composition of the mycorrhizal community. Efforts have been made to use morphotyping of mycorrhizal roots in order to better describe ectomycorrhizal communities (ECM), but this has had only limited application and success (Egli et al., 1993). Compared to the advances of plant ecology, our knowledge of the fungal communities, both mycorrhizal and saprophytic, is rudimental.
25 citations