The occurrence of heat-resistant species of Trichophaea abundans in different types of soil in Slovakia and Czech Republic

Abstract

Strains of Trichophaea abundans (Ascomycota, Pezizales, Pyrenomycetaceae) were isolated from Haplic Cambisol, Haplic Cambisol (Eutric), Litic Leptosol (Sceletic), Haplic Umbrisol, and Fulvic Andosol soils in Slovakia and from Rendzic Leptosol, Chernozem, Cambisol, drilosphere, and feacal pelets of the earthworm Allolobophora hrabei collected in southern Moravia. The Slovak soils markedly differ in pH, from extremely acidic (pHH2O 3.9) to weakly alkaline (pHH2O 7.4). T. abundans appeared as a post-burn species on Haplic Cambisol, which experienced a wildfire after a windthrow event (November 2004). In Moravia T. abundans was also isolated from sites situated in southern slopes, from time and time they affected by fires. We also note the growth of T. abundans on the surface of Fulvic Andosol after gradual heating in the lab to temperatures reaching 105• C. These findings confirmed by a review of the literature, indicate that T. abundans belongs to the group of heat-resistant fungi appearing in soils regularly influenced by the fire or grass calcining.

Diversity and abundance of soil microbial communities decline, and community compositions change with severity of post‐logging fire

“…and Anthracobia sp. were consistently found to drive the greatest differences in the high severity burn soils from the other soils, all of which have been previously described as fire‐associated fungi in eucalypt and other forest types (Mahoney & LaFavre, 1981; Ratkowsky & Gates, 2009; Šimonovičová et al, 2014; Gates et al, 2009). Many of the fire‐associated fungi are Ascomycetes, which are known to increase in abundance immediately following wildfire in both eucalypt forests (Robinson et al, 2008; Warcup, 1990) and coniferous forests (Holden et al, 2013).…”

All boreal forest successional stages needed to maintain the full suite of soil biodiversity, community composition, and function following wildfire

“…In the UNITE database, these SHs were comprised of sequences belonging to the heat-resistant Trichophaea abundans , the cosmopolitain post-fire Anthracobia melaloma , as well as the fire-associated cup-fungi genera Scutellinia , and Byssonectria . 63,33,64,65 The frequency and diversity of fire-associated fungal species was highest at the establishment stage, declining over time. Fungal genera, on the other hand, appeared cosmopolitan across development stages and likely includes species that are not strictly fire-associated.…”

Soil Microbiota of Dystric Cambisol in the High Tatra Mountains (Slovakia) after Windthrow

“…Instruments, Artisan technology group, Champaign, IL, USA) in linear heating regimes with the rates 5.0 • C min −1 in temperature region 30.0-800.0 • C. An organic fraction of approximately 50 wt % is released at temperatures below 600 • C. Above this temperature, the change in the ash mass is only 1 wt %. This means that the inorganic fraction of carbon is low and that the ash samples are the product of incomplete combustion [55,56]. At this location, a 3 cm thick layer of burnt organic material is visible (Figure 3).…”

“…Above this temperature, the change in the ash mass is only 1 wt %. This means that the inorganic fraction of carbon is low and that the ash samples are the product of incomplete combustion [55,56]. At this location, a 3 cm thick layer of burnt organic material is visible (Figure 3).…”

“…Wildfires, as well as other means of soil warming or heating, form favourable conditions for the occurrence and growth of heat-resistant species and probably also result in the diminishment of many mesophilic microorganisms. This sort of die out releases organic matter and, simultaneously, results also in lowered competition from other microorganisms [56]. Fungi play the role of soil stabilizers and remediators after forest fires because of the formation of the mycelial mat functioning in soil particle aggregation.…”