Skip to Main content Skip to Navigation
Journal articles

Elemental composition and degree of homeostasis of fungi: are aquatic hyphomycetes more like metazoans, bacteria or plants?

Abstract : Ecological stoichiometry generally assumes that heterotrophs have a higher degree of ele- mental homeostasis than autotrophs. Differences between fixed consumer nutrient requirements and nutrients available in resources allow prediction of the intensity of nutrient recycling ensured by heterotrophs. Despite their fundamental role in detritus decomposition, extremely few data are currently available on fungal elemental composition. In this study, we quantified the degree of elemental homeostasis of aquatic hyphomycetes used as model organisms. Contrary to metazoans, but similar to plants, aquatic hyphomy- cetes exhibited highly plastic elemental compositions. Mycelium also reached far higher C/ nutrient ratios than reported for bacteria. Our results suggest that non-homeostasis of fungi should be explicitly included in stoichiometric models dealing with nutrient recycling, and that the discrepancy in homeostasis between some bacterial strains and fungi should cer- tainly be considered when investigating interactions between both groups of decomposers.
Document type :
Journal articles
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-00957838
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Tuesday, March 11, 2014 - 10:45:18 AM
Last modification on : Thursday, October 15, 2020 - 4:07:15 AM
Long-term archiving on: : Wednesday, June 11, 2014 - 11:16:01 AM

File

Danger_11087.pdf
Files produced by the author(s)

Identifiers

Citation

Michael Danger, Eric Chauvet. Elemental composition and degree of homeostasis of fungi: are aquatic hyphomycetes more like metazoans, bacteria or plants?. Fungal Ecology, Elsevier, 2013, vol. 6, pp. 453-457. ⟨10.1016/j.funeco.2013.05.007⟩. ⟨hal-00957838⟩

Share

Metrics

Record views

389

Files downloads

958