Abundance of lipids in differently sized aggregates depends on their chemical composition
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10382517" target="_blank" >RIV/00216208:11310/18:10382517 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/18:00493259
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Oldf7cIgvQ" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Oldf7cIgvQ</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10533-018-0481-7" target="_blank" >10.1007/s10533-018-0481-7</a>
Alternative languages
Result language
angličtina
Original language name
Abundance of lipids in differently sized aggregates depends on their chemical composition
Original language description
Evidence for a vital role of soil mineral matrix interactions in lipid preservation is steadily increasing. However, it remains unclear whether solvent-extractable ('free') or hydrolyzable ('bound') lipids, including molecular proxies, e.g., for cutin and suberin, are similarly affected by different stabilization mechanisms in soil (i.e., aggregation or organo-mineral association). To provide insights into the effect of these stabilization mechanisms on lipid composition and preservation, we investigated free and bound lipids in particulate and mineral soil fractions, deriving from sand- and silt-/clay-sized aggregates from a forest subsoil. While free lipids accumulated in sand-sized aggregates, the more complex bound lipids accumulated in silt- and clay-sized aggregates, particularly in the respective mineral fractions < 6.3 A mu m (fine silt and clay). The presence of both, cutin and suberin markers indicated input of leaf- and root-derived organic matter to the subsoil. Yet, our cutin marker (9,10,omega-trihydroxyoctadecanoic acid) was not extracted from the mineral aggregate compartments < 6.3 A mu m, perhaps due to its chemical structure (i.e., cross-linking via several hydroxy groups, and thus higher 'stability', in macromolecular structures). Combined, these results suggest that the chemical composition of lipids (and likely also that of other soil organic matter compounds) governs interaction with their environment, such as accumulation in aggregates or association with mineral soil compartments, and thus indirectly influences their persistence in soil.
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
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
<a href="/en/project/GA18-24138S" target="_blank" >GA18-24138S: Soil aggregate formation and its role in soil organic matter stabilization and water holding capacity along a chronosequences of primary and secondary</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
Biogeochemistry
ISSN
0168-2563
e-ISSN
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Volume of the periodical
140
Issue of the periodical within the volume
1
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
15
Pages from-to
111-125
UT code for WoS article
000442208100008
EID of the result in the Scopus database
2-s2.0-85051805028