Basidiomycete fungal communities in Australian sclerophyll forest soil are altered by repeated prescribed burning

Anderson, Ian C.; Bastias, Brigitte A.; Genney, David R.; Parkin, Pamela I.; Cairney, John

doi:10.1016/j.mycres.2007.02.006

Cited by 43 publications

(26 citation statements)

References 27 publications

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“…Indeed, we have discovered many of the important factors that govern community structure from studies of specific communities. For example, we now know that the structure of ectomycorrhizal fungal communities is affected by various ecological factors and management practices including soil type (Gehring et al 1998), fire (Grogan et al 2000;Chen and Cairney 2002;Anderson et al 2007), herbivory (Gehring and Bennett 2009), canopy gap formation (Grebenc et al 2009), soil fertility (Kranabetter et al 2009), liming (Kjøller and Clemmensen 2009;Rineau et al 2010), heavy metal pollution (Markkola et al 2002), land use history (Diedhiou et al 2010) and urbanization (Baxter et al 1999). It stands to reason that the structure of a community is altered by such factors and practices because the component species respond in different ways to them.…”

Section: Introductionmentioning

confidence: 99%

General principles in the community ecology of ectomycorrhizal fungi

Koide

Fernandez

Petprakob

2011

Annals of Forest Science

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Section: Introductionmentioning

confidence: 99%

General principles in the community ecology of ectomycorrhizal fungi

Koide

Fernandez

Petprakob

2011

Annals of Forest Science

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“…Torres and Honrubia (1997) found that in a regenerating post-fire pine forest, those ectomycorrhizal fungi were privileged which formed heat-resistant propagules. In a molecular study, Anderson et al (2007) reported changes in vertical stratification of soil basidiomycetes but no substantial change in species richness. A similar trend was observed by Tuininga and Dighton (2004) on ectomycorrhizal roots of adult pine trees previously exposed to prescribed fire: they found no consistent stand-specific changes in fungal diversity but clear shifts in morphotype richness between soil horizons compared to unburned plots.…”

Section: Introductionmentioning

confidence: 99%

Post-fire seedlings of Nothofagus alpina in Southern Chile show strong dominance of a single ectomycorrhizal fungus and a vertical shift in root architecture

2008

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We investigated belowground responses of Nothofagus alpina seedlings to post-fire conditions during natural regeneration after a wildfire in Chile, focusing on mycorrhizal community and root architecture. The complete root systems of 2-year-old N. alpina seedlings were extracted from a post-fire site with natural regeneration and compared to roots of seedlings from undisturbed forest nearby. Mycorrhizal morphotype richness was determined in each seedling. Morphometric parameters of tertiary root structure and dry biomass of whole root systems were determined in 5 cm vertical intervals and in four lateral root classes. With 43.5% of colonized vital mycorrhizal root tips, the Basidiomycete Descolea antarctica was the most abundant fungal symbiont on post-fire seedlings. Tertiary root morphology of these seedlings was distinct from control plants and characterized by a deep-reaching tap root with rather evenly distributed lateral branches whereas seedlings from the undisturbed site had shallower root systems with most lateral roots concentrated in the upper soil layers. Post-fire seedlings had more mycorrhizal rootlets and mycorrhiza-bearing third order lateral roots than control plants which was expressed in a 34% higher total root number but only a 10% higher total root biomass, although both values were not statistically significant. A major part of these fine roots in seedlings from burnt forest was found in deeper soil horizons, compared to the seedlings from undisturbed forest. According to our results, post-fire conditions clearly favour Descolea antarctica as an early ectomycorrhizal colonizer of Nothofagus seedlings at the studied site. As no significant changes in soil chemistry could be observed at the burnt site, the deep-reaching tertiary root architecture of these seedlings may be interpreted as a response to other abiotic factors like reduced moisture in surface soil.

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“…In 4 system of each plant was then divided into two vertical sections, from 0 to10 cm and from 10 to 20 cm from the plant root collar (Anderson et al, 2007). All root tips were classified morphologically as mycorrhizal vs. non-mycorrhizal or "non vital" (Agerer, 1991, 1987-2002, de Román & de Miguel, 2005, Scattolin et al, 2008, using a Leica M3 dissecting microscope and a 15x magnification stereomicroscope.…”

Section: Experimental Design and Field Samplingmentioning

confidence: 99%

“…Also the mycelium of ECM fungi which is usually most abundant in the superficial organic soil layers in undisturbed ecosystems (Visser, 1995, Neville et al, 2002, Wallander et al, 2004 may influence root morphology and architecture through the formation of short lateral roots and root tips (Ostonen et al, 2009, Kubisch et al, 2015, therefore affecting seedling growth (Jones et al, 2003). There is also evidence of the stratification of fungal communities (Dickie et al, 2002, Rosling et al, 2003Anderson et al, 2007) between the 0-10 and 10-20 cm sections of soil profile, but is not always the case as reported by Anderson et al (2007) where non stratified homogeneous ECM communities were present within the 20 cm of soil depth after two years after fire.…”

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confidence: 99%

The effects of fire severity on ectomycorrhizal colonization and morphometric features in Pinus pinaster Ait. seedlings

Gassibe

Rueda

Blanco³

et al. 2016

For. syst.

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Aim of the study: Mycorrhizal fungi in Mediterranean forests play a key role in the complex process of recovery after wildfires. A broader understanding of an important pyrophytic species as Pinus pinaster and its fungal symbionts is thus necessary for forest restoration purposes. This study aims to assess the effects of ectomycorrhizal symbiosis on maritime pine seedlings and how fire severity affects fungal colonization ability.Area of study: Central Spain, in a Mediterranean region typically affected by wildfires dominated by Pinus pinaster, a species adapted to fire disturbance.Material and Methods: We studied P. pinaster root apexes from seedlings grown in soils collected one year after fire in undisturbed sites, sites moderately affected by fire and sites highly affected by fire. Natural ectomycorrhization was observed at the whole root system level as well as at two root vertical sections (0-10 cm and 10-20 cm). We also measured several morphometric traits (tap root length, shoot length, dry biomass of shoots and root/shoot ratio), which were used to test the influence of fire severity and soil chemistry upon them.Main results: Ectomycorrhizal colonization in undisturbed soils for total and separated root vertical sections was higher than in soils that had been affected by fire to some degree. Inversely, seedling vegetative size increased according to fire severity.Research highlights: Fire severity affected soil properties and mycorrhizal colonization one year after occurrence, thus affecting plant development. These findings can contribute to a better knowledge of the factors mediating successful establishment of P. pinaster in Mediterranean forests after wildfires.Keywords: Wildfire; mycorrhizal fungi; Maritime pine; bioassay. Citation: Vásquez-Gassibe, P., Oria-de-Rueda, J.A., Santos-del-Blanco, L., Martín-Pinto, P. (2016). The effects of fire severity on ectomycorrhizal colonization and morphometric features in Pinus pinaster Ait. seedlings. Forest Systems, Volume 25, Issue 1, e050. http://dx

show abstract

Basidiomycete fungal communities in Australian sclerophyll forest soil are altered by repeated prescribed burning

Cited by 43 publications

References 27 publications

General principles in the community ecology of ectomycorrhizal fungi

General principles in the community ecology of ectomycorrhizal fungi

Post-fire seedlings of Nothofagus alpina in Southern Chile show strong dominance of a single ectomycorrhizal fungus and a vertical shift in root architecture

The effects of fire severity on ectomycorrhizal colonization and morphometric features in Pinus pinaster Ait. seedlings

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