Biochemical determinants of litter quality in 15 species of Sphagnum
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897311" target="_blank" >RIV/60076658:12310/18:43897311 - isvavai.cz</a>
Alternative codes found
RIV/67985939:_____/18:00490384
Result on the web
<a href="https://link.springer.com/content/pdf/10.1007%2Fs11104-018-3579-8.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007%2Fs11104-018-3579-8.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11104-018-3579-8" target="_blank" >10.1007/s11104-018-3579-8</a>
Alternative languages
Result language
angličtina
Original language name
Biochemical determinants of litter quality in 15 species of Sphagnum
Original language description
Background and aims Sphagnum mosses are ecosystem engineers that create and maintain boreal peatlands. With unique biochemistry, waterlogging and acidifying capacities, they build up meters-thick layers of peat, reducing competition and impeding decomposition. We quantify within-genus differences in biochemical composition to make inferences about decay rates, related to hummock-hollow and fen-bog gradients and to phylogeny. Methods We sampled litter from 15 Sphagnum species, abundant over the whole northern hemisphere. We used regression and Principal Components Analysis (PCA) to evaluate general relationships between litter quality parameters and decay rates measured under laboratory and field conditions. Results Both concentrations of the polysaccharide sphagnan and the soluble phenolics were positively correlated with intrinsic decay resistance, however, so were the previously understudied lignin-like phenolics. More resistant litter had more of all the important metabolites; consequently, PC1 scores were related to lab mass loss (R-2 = 0.57). There was no such relationship with field mass loss, which is also affected by the environment. PCA also revealed that metabolites clearly group Sphagnum sections (subgenera). Conclusions We suggest that the commonly stated growth-decomposition trade-off is largely due to litter quality. We show a strong phylogenetic control on Sphagnum metabolites, but their effects on decay are affected by nutrient availability in the habitat.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40104 - Soil science
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plant and Soil
ISSN
0032-079X
e-ISSN
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Volume of the periodical
425
Issue of the periodical within the volume
1-2
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
16
Pages from-to
161-176
UT code for WoS article
000430992300011
EID of the result in the Scopus database
2-s2.0-85041600517