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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 (&apos;free&apos;) or hydrolyzable (&apos;bound&apos;) 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 &lt; 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 &lt; 6.3 A mu m, perhaps due to its chemical structure (i.e., cross-linking via several hydroxy groups, and thus higher &apos;stability&apos;, 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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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

  • 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