Vliv proteinogenních a neproteinogenních aminokyselin na nativní proteasovou aktivitu lesních půd = Effect of Proteinogenic and Non-proteinogenic Amino Acids of the Native Protease Activity of Forest Soils

To chci

Soil proteolytic complex plays an important role in nutrient cycling in the ecosystem. Interactions of this enzyme complex with proteinogenic and non-proteinogenic amino acids were studied on the cambisol (stands of beech, oak and spruce) and Rendzic Leptosol (beech stand) soil types. The aim of the study was to find out how does native soil protease react for the presence of amino acids, i.e., substances which are released during the decomposition of organic matter, get into the soil and the environment and represent important sources of nitrogen and carbon. The overall activity of the native soil protease was stimulated by the proteinogenic and non-proteinogenic amino acids. In three cases there was an inhibition. In one case, an inhibitory effect of the protease on proteinogenic amino acids (D-glutamic acid) was observed in an organic horizon of a spruce stand and, in two cases, on non-proteinogenic amino acids (L-ornithine and L-citrulline) in an organomineral horizon of a spruce stand. … celý popis

Podrobná bibliografie

Hlavní autor

Ladislav Holík

Další autoři

Valerie Vranová
Klement Rejšek, 1963-2017

Typ dokumentu

Články

Fyzický popis

3 ilustrace

Publikováno v

Chemické listy. -- ISSN 0009-2770. -- Roč. 110, č. 11 (2016), s. 812-817

Témata

Mendelova zemědělská a lesnická univerzita. > Školní lesní podnik Masarykův les Křtiny

FOREST STANDS

ECOSYSTEMS

nutrient cycling in ecosystems

FOREST SOILS

CAMBISOLS

RENDZINAS

FAGUS SYLVATICA

PICEA ABIES

QUERCUS

Soil sampling

Soil horizons

SOIL CHEMISTRY

BIOCHEMISTRY

ENZYMES

PROTEASES

PROTEOLYSIS

NITROGEN CYCLE

Nitrogen mineralization

SOIL PH

lesní porosty

ekosystémy

koloběh živin

lesní půdy

kambisoly

rendziny

Fagus sylvatica

smrk ztepilý

dub

odběr půdních vzorků

půdní horizonty

půdní chemie

biochemie

enzymy

proteázy

proteolýza

koloběh dusíku

mineralizace dusíku

aminokyseliny

půdní pH

Útěchov (Brno, Česko)

Jedovnice (Česko : oblast)

Popis jednotky

3 tabulky

Bibliografie

Literatura na s. 816 (26 zázn.)