Utilization of dietary protein in the litter-dwelling larva of Bibio marci (Diptera: Bibionidae)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F19%3A00520728" target="_blank" >RIV/60077344:_____/19:00520728 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1134%2FS1064229319120032" target="_blank" >https://link.springer.com/article/10.1134%2FS1064229319120032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1134/S1064229319120032" target="_blank" >10.1134/S1064229319120032</a>
Alternative languages
Result language
angličtina
Original language name
Utilization of dietary protein in the litter-dwelling larva of Bibio marci (Diptera: Bibionidae)
Original language description
As plant litter is typically N limited, protein digestion and amino acid assimilation are key processes in saprophagous invertebrates. The recalcitrance of dietary protein may be increased by their binding to phenolic compounds in humic substances. Binding phenolic compound to protein may be also important in humus acid formation and stabilization of nitrogen bounded protein in soil organic matter. Consequently, better understanding of interaction of protein and phenolic compounds in invertebrate gut is important not only from ecophysiology perspective but also in terms of soil organic matter dynamics. In this study, we evaluated the digestive efficiency of proteins during gut passage in the litter-dwelling larva of Bibio marci. Anterior part of the midgut is highly alkaline, which agrees with the protease pH optimum. We found large differences in protease activities of the leaf litter, gut, and excrements. However, individual gut compartments were close to one another in their protease activities. The same was true for the contents of amino acids and ammonia. Also, amino acid composition differed between compartments. Litter had the high content of glutamine and serine, whereas hindgut and excrement were characterized by the high content of methionine, and the remaining gut segments had the high content of valine. Experiment with 14C-labelled protein demonstrated that gut passage improved the digestive efficiency of proteins, especially for a humic acid stabilized protein.
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
10618 - Ecology
Result continuities
Project
<a href="/en/project/GA17-14409S" target="_blank" >GA17-14409S: The role of soil fauna in soil organic matter decomposition and stabilization; do the specie traits matter ?</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Eurasian Soil Science
ISSN
1064-2293
e-ISSN
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Volume of the periodical
52
Issue of the periodical within the volume
12
Country of publishing house
RU - RUSSIAN FEDERATION
Number of pages
5
Pages from-to
1583-1587
UT code for WoS article
000510611800010
EID of the result in the Scopus database
2-s2.0-85075443057