Early chemical changes during wood decomposition are controlled by fungal communities inhabiting stems at treefall in a tropical dry forest

Maillard, François; Andrews, Erin; Moran, Molly; Du, Dan V.; Kennedy, Peter G.; Powers, Jennifer S.; Bloem, Skip J. Van; Schilling, Jonathan S.

doi:10.1007/s11104-021-05048-y

Cited by 7 publications

(2 citation statements)

References 75 publications

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“…The diversity of each is exemplified by the assortment of fungi: Basidiomycota, Ascomycota, Mortierellomycotina, Mucoromycotina, Chytridiomycota, Glomeromycota, Entomphthoromycota, and Kicxellomycotina that function as white rot, brown rot, saprotrophs, ectomycorrhizae, and yeasts (Baldrian et al., 2016). Legacy effects of initial communities are dependent on tree species and decisive for future community composition and transformation (Maillard et al., 2021; Purahong et al., 2018).…”

Section: Profile Scalementioning

confidence: 99%

Perspectives of the Fritz‐Scheffer Awardee 2021: Profile‐ to ecosystem‐scale perspectives on soil organic matter formation as demonstrated by woody debris in forest dynamics

Stutz

2023

J. Plant Nutr. Soil Sci.

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Soil organic matter (SOM) forms along a continuum from individual particles, pores, and aggregates to litter-soil profiles and larger ecosystems such as forests. However, forest management of SOM stocks and the carbon therein requires knowledge on which processes and factors at which scales determine SOM formation from forest biomass.As evident from woody debris at the profile scale, SOM forms through additions, transformations, translocations, and removals of litter by soil organisms and environmental components. Yet SOM stocks only increase if litter additions-to-removals are out of steady state or enter a new steady state that ignores older litter. Both happen through disturbance and self-selecting feedback processes in ecosystems consisting of autotrophs, heterotrophs, and their physical environment. One such positive feedback process is litter-SOM transformation by heterotrophs that releases nutrients that promote plant productivity and thus litter input. Stocks of litter-SOM, heterotrophs, nutrients, and plants thus exhibit Lotka-Volterra dynamics (i.e., predator-prey interactions) and only increase when attractor states (i.e., steady series or sets of states) change due to disturbance. Evidence of evolving feedback processes and disturbance in SOM would help identify limits, potentials, and precariousness of ecosystems in light of global change, but remains to be found.

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Section: Profile Scalementioning

confidence: 99%

Perspectives of the Fritz‐Scheffer Awardee 2021: Profile‐ to ecosystem‐scale perspectives on soil organic matter formation as demonstrated by woody debris in forest dynamics

Stutz

2023

J. Plant Nutr. Soil Sci.

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“…Patterns of resource use and growth largely define the ecological niche of microbiome species and inform processes structuring their communities [19][20][21][22]. For example, in saprobic communities, the most abundant fungal species on recalcitrant substrates such as lignin and hemicellulose are those able to break down these substrates as a main source of carbon [23][24][25][26]. Like saprobic communities, differing patterns of resource use by symbiotic microbes may also define different niches within the host [27] and mediate biotic interactions among co-occurring symbionts [28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Cryptic functional diversity within a grass mycobiome

Ndinga-Muniania,

Wornson,

Fulcher

et al. 2023

PLoS ONE

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Eukaryotic hosts harbor tremendously diverse microbiomes that affect host fitness and response to environmental challenges. Fungal endophytes are prominent members of plant microbiomes, but we lack information on the diversity in functional traits affecting their interactions with their host and environment. We used two culturing approaches to isolate fungal endophytes associated with the widespread, dominant prairie grass Andropogon gerardii and characterized their taxonomic diversity using rDNA barcode sequencing. A randomly chosen subset of fungi representing the diversity of each leaf was then evaluated for their use of different carbon compound resources and growth on those resources. Applying community phylogenetic analyses, we discovered that these fungal endophyte communities are comprised of phylogenetically distinct assemblages of slow- and fast-growing fungi that differ in their use and growth on differing carbon substrates. Our results demonstrate previously undescribed and cryptic functional diversity in carbon resource use and growth in fungal endophyte communities of A. gerardii.

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A cryptically diverse microbial community drives organic matter decomposition in forests

Maillard,

Colin,

Viotti

et al. 2024

Applied Soil Ecology

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Early chemical changes during wood decomposition are controlled by fungal communities inhabiting stems at treefall in a tropical dry forest

Cited by 7 publications

References 75 publications

Perspectives of the Fritz‐Scheffer Awardee 2021: Profile‐ to ecosystem‐scale perspectives on soil organic matter formation as demonstrated by woody debris in forest dynamics

Perspectives of the Fritz‐Scheffer Awardee 2021: Profile‐ to ecosystem‐scale perspectives on soil organic matter formation as demonstrated by woody debris in forest dynamics

Cryptic functional diversity within a grass mycobiome

A cryptically diverse microbial community drives organic matter decomposition in forests

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