The Role of Fungi in Weathering

Hoffland, Ellis; Kuyper, Thomas W.; Wallander, Håkan; Plassard, Claude; Gorbushina, Anna A.; Haselwandter, K.; Holmström, Sara; Landeweert, R.; Lundstrom, Ulla S.; Rosling, Anna; Sen, Robin; Smits, Mark M.; Hees, Patrick A.W. van; Breemen, N. van

doi:10.2307/3868266

Cited by 73 publications

(109 citation statements)

References 33 publications

(43 reference statements)

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“…And as a matter of fact, STXM has proven to be an appropriate tool to study the biogenecity of some minerals [53,[126][127][128][129].…”

Section: Methodological Issues In the Study Of Fungal Biominerals Fromentioning

confidence: 99%

“…Within the last few decades, numerous studies have been dedicated to the interaction of fungi with metals and minerals and have shown that fungi are able to resist high concentrations of toxic metals [50,51], are important players in mineral weathering [29,30,48,52,53] and are large producers of secondary mineral compounds, in particular of metal-oxalates [49,[54][55][56][57][58] (Figure 3). As a result, fungi, similarly to prokaryotes, have to be considered as major players in biogeochemical cycles.…”

Section: Importance Of Fungi In the Biogeochemical Cycles Of Elementsmentioning

confidence: 99%

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Role of Fungi in the Biomineralization of Calcite

2016

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Abstract:In the field of microbial biomineralization, much of the scientific attention is focused on processes carried out by prokaryotes, in particular bacteria, even though fungi are also known to be involved in biogeochemical cycles in numerous ways. They are traditionally recognized as key players in organic matter recycling, as nutrient suppliers via mineral weathering, as well as large producers of organic acids such as oxalic acid for instance, an activity leading to the genesis of various metal complexes such as metal-oxalate. Their implications in the transformation of various mineral and metallic compounds has been widely acknowledged during the last decade, however, currently, their contribution to the genesis of a common biomineral, calcite, needs to be more thoroughly documented. Calcite is observed in many ecosystems and plays an essential role in the biogeochemical cycles of both carbon (C) and calcium (Ca). It may be physicochemical or biogenic in origin and numerous organisms have been recognized to control or induce its biomineralization. While fungi have often been suspected of being involved in this process in terrestrial environments, only scarce information supports this hypothesis in natural settings. As a result, calcite biomineralization by microbes is still largely attributed to bacteria at present. However, in some terrestrial environments there are particular calcitic habits that have been described as being fungal in origin. In addition to this, several studies dealing with axenic cultures of fungi have demonstrated the ability of fungi to produce calcite. Examples of fungal biomineralization range from induced to organomineralization processes. More examples of calcite biomineralization related to direct fungal activity, or at least to their presence, have been described within the last decade. However, the peculiar mechanisms leading to calcite biomineralization by fungi remain incompletely understood and more research is necessary, posing new exciting questions linked to microbial biomineralization processes.

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“…And as a matter of fact, STXM has proven to be an appropriate tool to study the biogenecity of some minerals [53,[126][127][128][129].…”

Section: Methodological Issues In the Study Of Fungal Biominerals Fromentioning

confidence: 99%

Section: Importance Of Fungi In the Biogeochemical Cycles Of Elementsmentioning

confidence: 99%

Role of Fungi in the Biomineralization of Calcite

2016

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“…Lichens also accumulate heavy metals and radionuclides (Gadd 2007). Although fungi are known to weather rocks by producing carbonic and other acids (Hoffland et al 2004) and scavenge heavy metals and tolerate radionuclides (Cordero and Casadevall 2017), the contribution of endolichenic fungi to these phenomena exhibited by lichens is not known.…”

Section: Introductionmentioning

confidence: 99%

Endolichenic fungi: the lesser known fungal associates of lichens

Suryanarayanan

Thirunavukkarasu

2017

Mycology

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Lichens are the result of a stable mutualism between a fungal and a photosynthesising partner (alga or cyanobacterium). In addition to the fungal partner in this mutualism, lichens are associated with endolichenic fungi which reside inside their thalli. The endolichenic fungi appear to have evolved with the lichen and many of them are a source of novel metabolites vested with unique bioactivities. There is very little information on the biology of endolichenic fungi and their interactions with the other components of a lichen microbiome. There is an urgent need to understand these aspects of endolichenic fungi such that their ecology and economic potential are known more completely. The current knowledge on endolichenic fungi is reviewed here.

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“…The importance of non-exchangeable and mineral K for plant uptake is by no means unique to micaceous clays, which are subject to biological weathering in the rhizosphere [91][92][93][94] (see also supplemental references [28] and [31] for the online version of the paper). Sand-and siltsized muscovite and biotite can also be a major source of plant-available K, as demonstrated conclusively by Mengel et al 83 in studies with 14 loess-derived Alfisols.…”

Section: Evaluation Of Soil Potassium Testingmentioning

confidence: 99%

The potassium paradox: Implications for soil fertility, crop production and human health

Khan

Mulvaney

Ellsworth

2013

Renew. Agric. Food Syst.

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Intensive fertilizer usage of KCl has been inculcated as a prerequisite for maximizing crop yield and quality, and relies on a soil test for exchangeable K in the plow layer to ensure that soil productivity will not be limited by nutrient depletion. The interpretive value of this soil test was rigorously evaluated by: (1) field sampling to quantify biweekly changes and seasonal trends, (2) characterizing the variability induced by air drying and the dynamic nature of soil K reserves and (3) calculating the K balance in numerous cropping experiments. These evaluations leave no alternative but to question the practical utility of soil K testing because test values cannot account for the highly dynamic interchange between exchangeable and non-exchangeable K, exhibit serious temporal instability with or without air drying and do not differentiate soil K buildup from depletion. The need for routine K fertilization should also be questioned, considering the magnitude and inorganic occurrence of profile reserves, the recycling of K in crop residues and the preferential nature of K uptake. An extensive survey of more than 2100 yield response trials confirmed that KCl fertilization is unlikely to increase crop yield. Contrary to the inculcated perception of KCl as a qualitative commodity, more than 1400 field trials predominately documented a detrimental effect of this fertilizer on the quality of major food, feed and fiber crops, with serious implications for soil productivity and human health.

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The Role of Fungi in Weathering

Cited by 73 publications

References 33 publications

Role of Fungi in the Biomineralization of Calcite

Role of Fungi in the Biomineralization of Calcite

Endolichenic fungi: the lesser known fungal associates of lichens

The potassium paradox: Implications for soil fertility, crop production and human health

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