Rock-eating fungi

Jongmans, A.G.; Breemen, N. van; Lundström, Ulla; Hees, Patrick A.W. van; Finlay, Roger D.; Srinivasan, Malathi; Unestam, Torgny; Giesler, Reiner; Melkerud, Per-Arne; Olsson, Mats

doi:10.1038/39493

Cited by 449 publications

(263 citation statements)

References 3 publications

(4 reference statements)

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“…This is similar to findings on subalpine fir (A. lasiocarpa) ECM (Arocena et al 1999) but is in contrast to other studies that report Piloderma ECM to be confined to organic materials (Brand 1991;Goodman et al 1996). The functional role of Piloderma ECM associations is largely unknown but reports suggest that ECM may be involved in granite weathering (Jongmans et al 1997). Other ECM such as S. variegatus on P. sylvestris seedlings reportedly enhanced the uptake of K more from biotite than microcline (Wallander and Wickman 1999).…”

Section: Ectomycorrhizal Colonizationmentioning

confidence: 99%

“…Wallander and Wickman (1999) showed that Pinus sylvestris (L.) seedlings colonized by Suillus variegatus appeared to be more efficient in the uptake of K from biotite than from microcline. In Sweden, Jongmans et al (1997) found that hyphae of S. granulatus and Piloderma croceum ectomycorrhizae could penetrate the calcium feldspars in granitic rocks; they postulated that this provides an opportunity for a direct flow of nutrients from the mineral to the plant. In a Mediterranean type climate ecosystem, de los Rios et al (2002) reported that fungi in crustose lichens combined physical attachment with potassium depletion to weather the laminar, micaceous minerals in granite.…”

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confidence: 99%

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Properties of soils influenced by ectomycorrhizal fungi in hybrid spruce [Picea glauca × engelmannii (Moench.) Voss]

Glowa¹,

Arocena²,

Massicotte³

2004

Can. J. Soil. Sci.

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[91][92][93][94][95][96][97][98][99][100][101][102]. Soil properties of rhizosphere zones in coniferous forests are influenced by the presence of ectomycorrhizae. To elucidate the role of ectomycorrhizae (ECM) on the alteration of chemical and mineralogical properties of soils, soil pH, total C and N, cation exchange capacity, and the contents of mica, chlorite, and kaolinite, 2:1 type expandable clays, and amorphous minerals were compared in two soils, soils influenced by ectomycorrhizal fungi (ECS) and non-ectomycorrhizosphere soils (N-ECM) of Picea glauca x engelmannii (Moench.) Voss. Specifically, the two ECS soils were dominated by (1) Piloderma spp. (ECS-A) and (2) Inocybe lacera-like and Hebeloma-like morphotypes or where Piloderma spp. colonization was <1% (ECS-B). Our results showed that pH was lower in ECS compared to N-ECM samples. Total C and N were significantly higher in ECS soils than N-ECM samples. Cation exchange capacity as well as exchangeable K + , and Na + were higher in ECS compared to N-ECM soils. X-ray diffraction analysis showed that the amount of 2:1 expanding clays (vermiculite and smectite) was higher in ECS than N-ECM samples and results suggest that there is an enhanced transformation of mica and chlorite to 2:1 type expandable clays in ECS samples when compared to N-ECM samples. The differences in chemical and mineralogical properties between ECS and N-ECM soils, in our study, support earlier studies that show ectomycorrhizal fungi can alter the properties of soils in the rhizosphere zone.

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Section: Ectomycorrhizal Colonizationmentioning

confidence: 99%

mentioning

confidence: 99%

Properties of soils influenced by ectomycorrhizal fungi in hybrid spruce [Picea glauca × engelmannii (Moench.) Voss]

Glowa¹,

Arocena²,

Massicotte³

2004

Can. J. Soil. Sci.

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“…The term rock-eating fungi was coined by Jongmans et al (1997), when they described microscopic tunnels contained within feldspar and hornblende grains in the E horizon of podzol soils. Podzols are characterised by four distinct soil horizons: a dark-coloured organic (O) horizon underlain by a white/ash-col oured eluvial (E) horizon, overlying a usually darkcoloured illuvial (B) horizon on top of the unaltered parent (C) material (Fig.…”

Section: Introductionmentioning

confidence: 99%

Rock-eating mycorrhizas: their role in plant nutrition and biogeochemical cycles

et al. 2007

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A decade ago, tunnels inside mineral grains were found that were likely formed by hyphae of ectomycorrhizal (EcM) fungi. This observation implied that EcM fungi can dissolve mineral grains. The observation raised several questions on the ecology of these "rock-eating" fungi. This review addresses the roles of these rock-eating EcM associations in plant nutrition, biogeochemical cycles and pedogenesis. Research approaches ranged from molecular to ecosystem level scales. Nutrient deficiencies change EcM seedling exudation patterns of organic anions and thus their potential to mobilise base cations from minerals. This response was fungal species-specific. Some EcM fungi accelerated mineral weathering. While mineral weathering could also increase the concentrations of phytotoxic aluminium in the soil solution, some EcM fungi increase Al tolerance through an enhanced exudation of oxalate. Through their contribution to Al transport, EcM hyphae could be agents in pedogenesis, especially podzolisation. A modelling study indicated that mineral tunnelling is less important than surface weathering by EcM fungi. With both processes taken together, the contribution of EcM fungi to weathering may be significant. In the field vertical niche differentiation of EcM fungi was shown for EcM root tips and extraradical mycelium. In the field EcM fungi and tunnel densities were correlated. Our results support a role of rock-eating EcM fungi in plant nutrition and biogeochemical cycles. EcM fungal species-specific differences indicate the need for further research with regard to this variation in functional traits.

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“…Typical transformation mechanisms involve physical and biochemical processes that are generally interlinked (Gadd 2017). Physical mechanisms include penetration by the hyphae along points of weakness, or direct tunnelling or boring, especially in weakened or porous substrata (Jongmans et al 1997; Hoppert et al 2004). Fungal tunnels within soil minerals have been explained as a result of dissolution and “burrowing” within the mineral (Jongmans et al 1997).…”

Section: The Specific Ecological Roles Of Scleractinian Corals On Cormentioning

confidence: 99%

“…Physical mechanisms include penetration by the hyphae along points of weakness, or direct tunnelling or boring, especially in weakened or porous substrata (Jongmans et al 1997; Hoppert et al 2004). Fungal tunnels within soil minerals have been explained as a result of dissolution and “burrowing” within the mineral (Jongmans et al 1997). Tunnels may also result after fungal exploration of pre-existing cracks, fissures and pores in weatherable minerals and formation of a secondary mineral matrix of the same or different chemical composition as the substrate, e.g.…”

Section: The Specific Ecological Roles Of Scleractinian Corals On Cormentioning

confidence: 99%

The roles of endolithic fungi in bioerosion and disease in marine ecosystems. I. General concepts

et al. 2017

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Endolithic true fungi and fungus-like microorganisms penetrate calcareous substrates formed by living organisms, cause significant bioerosion and are involved in diseases of many host animals in marine ecosystems. A theoretical interactive model for the ecology of reef-building corals is proposed in this review. This model includes five principle partners that exist in a dynamic equilibrium: polyps of a colonial coelenterate, endosymbiotic zooxanthellae, endolithic algae (that penetrate coral skeletons), endolithic fungi (that attack the endolithic algae, the zooxanthellae and the polyps) and prokaryotic and eukaryotic microorganisms (which live in the coral mucus). Endolithic fungi and fungus-like boring microorganisms are important components of the marine calcium carbonate cycle because they actively contribute to the biodegradation of shells of animals composed of calcium carbonate and calcareous geological substrates.

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Rock-eating fungi

Cited by 449 publications

References 3 publications

Properties of soils influenced by ectomycorrhizal fungi in hybrid spruce [Picea glauca × engelmannii (Moench.) Voss]

Properties of soils influenced by ectomycorrhizal fungi in hybrid spruce [Picea glauca × engelmannii (Moench.) Voss]

Rock-eating mycorrhizas: their role in plant nutrition and biogeochemical cycles

The roles of endolithic fungi in bioerosion and disease in marine ecosystems. I. General concepts

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